Change search
Refine search result
1954195519561957195819591960 97801 - 97850 of 102019
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 97801.
    Wolk, Sanna
    Stockholm University, Faculty of Law, Department of Law, The Institute of Intellectual Property Law and Marketing Law.
    Intellectual Property Law and Ownership in Employment Relationship2009In: Property and Ownership / [ed] Begum, Hyderabad, Indien: ICFAI University Press , 2009, 1Chapter in book (Other (popular science, discussion, etc.))
  • 97802.
    Wolk, Sanna
    Stockholm University, Faculty of Law, Department of Law, The Institute of Intellectual Property Law and Marketing Law.
    Kommentar till AD 2002 nr 872002In: Nordiskt Immateriellt Rättsskydd, Vol. 71, no 6, p. 593-597Article in journal (Refereed)
    Abstract [sv]

    Upphovsrätt. Rättsövergången av de närstående rättigheterna i ett anställningsförhållande. Utövande konstnärers (musikers) rätt enligt 45 § URL avseende en videoinspelning av ett framförande ansågs inte ha övergått till deras arbetsgivare.

  • 97803.
    Wolk, Sanna
    Stockholm University, Faculty of Law, Department of Law, The Institute of Intellectual Property Law and Marketing Law.
    Lärarundantaget i omvandling2003In: Nordiskt Immateriellt Rättsskydd, ISSN 0027-6723, p. 415-426Article in journal (Refereed)
  • 97804.
    Wolk, Sanna
    Stockholm University, Faculty of Law, Department of Law, The Institute of Intellectual Property Law and Marketing Law.
    Lärarundantaget under luppen2005In: PatentEye, ISSN 1403-2309, no 8, p. 22-23Article in journal (Other (popular science, discussion, etc.))
  • 97805.
    Wolk, Sanna
    Stockholm University, Faculty of Law, Department of Law, The Institute of Intellectual Property Law and Marketing Law.
    Ownership of the Copyright in Works and the Patent Right in Inventions Created by Employees: In Finland, Sweden, Germany, Austria, the United Kingdom, Estonia and Argentina2002Collection (editor) (Other (popular science, discussion, etc.))
  • 97806.
    Wolk, Sanna
    Stockholm University, Faculty of Law, Department of Law.
    Remuneration of Employee Inventors - Is There a Common European Ground?: A Comparison of National Laws on Compensation of Inventors in Germany, France, Spain, Sweden and the United Kingdom2011In: International Review of Intellectual Property and Competition Law (IIC), ISSN 0018-9855, Vol. 42, p. 272-298Article in journal (Refereed)
    Abstract [en]

    Economic success today depends increasingly on intangible, information-based assets, such as the creativity of employees and the knowledge gained from research. Nowadays many companies are also well aware of the value of intellectual property, especially inventions and patents. The ownership and control of patentable inventions are crucial to the success of any business and, in order to maximise the value of intellectual property assets, it is necessary to maintain and effectively manage all associated ownership rights as well.

  • 97807.
    Wolk, Sanna
    Stockholm University, Faculty of Law, Department of Law, The Institute of Intellectual Property Law and Marketing Law.
    Report Q 194, AIPPI SPECIAL COMMITTEE – The impact of co–ownership of Intellectual Property Rights on their exploitation,2009Report (Other (popular science, discussion, etc.))
  • 97808.
    Wolk, Sanna
    Stockholm University, Faculty of Law, Department of Law.
    Reward for employees´ inventions - a comparative study2011In: CIPA Journal, ISSN 0306-0314, Vol. 6-7, p. 352-445Article in journal (Refereed)
  • 97809.
    Wolk, Sanna
    Stockholm University, Faculty of Law, Department of Law, The Institute of Intellectual Property Law and Marketing Law.
    Sakrätten - en introduktion2002In: Immaterialrätt & Sakrätt / [ed] Annina H. Persson, Marianne Levin & Sanna Wolk, Stockholm: Juridiska fakulteten , 2002Chapter in book (Other academic)
  • 97810.
    Wolk, Sanna
    Stockholm University, Faculty of Law, Department of Law, The Institute of Intellectual Property Law and Marketing Law.
    Sekretesskydd för patentombud men inte för varumärkesombud2007In: Brand News, ISSN 1104-4675, Vol. 18, no 5, p. 20-23Article in journal (Other (popular science, discussion, etc.))
  • 97811.
    Wolk, Sanna
    Stockholm University, Faculty of Law, Department of Law.
    Teaching materials – A copyright paradox?2011In: National Legal Cultures in a Globalized World, 2011Conference paper (Refereed)
  • 97812.
    Wolk, Sanna
    Stockholm University, Faculty of Law, Department of Law, The Institute of Intellectual Property Law and Marketing Law.
    The impact of co–ownership of Intellectual Property Rights on their exploitation,: Q 194, part 22007Report (Other (popular science, discussion, etc.))
  • 97813.
    Wolk, Sanna
    Stockholm University, Faculty of Law, Department of Law.
    Universitetslärarens upphovsrätt2011Book (Other (popular science, discussion, etc.))
  • 97814.
    Wolk, Sanna
    Stockholm University, Faculty of Law, Department of Law, The Institute of Intellectual Property Law and Marketing Law.
    Upphovsrätt i grafisk produktion2006In: Grafisk kokbok: guiden till grafisk produktion / [ed] Johansson/Lundberg/Ryberg, Stockholm: Arena , 2006, 2Chapter in book (Other (popular science, discussion, etc.))
  • 97815.
    Wolk, Sanna
    et al.
    Stockholm University, Faculty of Law, Department of Law, The Institute of Intellectual Property Law and Marketing Law.
    Hellstadius, Åsa
    Stockholm University.
    Wessman, Richard
    Stockholm University, Faculty of Law, Department of Law, The Institute of Intellectual Property Law and Marketing Law.
    Intellectual property and biobanks2003In: Biobanks as resources for health / [ed] Mats G. Hansson, Marianne Levin, Uppsala: Research Program Ethics in Medicine; univ. , 2003Chapter in book (Other academic)
  • 97816.
    Wolk, Sanna
    et al.
    Stockholm University, Faculty of Law, Department of Law, The Institute of Intellectual Property Law and Marketing Law.
    Nordlöf, Claes
    Stockholm University, Faculty of Law, Department of Law.
    Vem äger upphovsrätten till skrivna hemligheter?2006In: Lag & Avtal, no 5Article in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    

    Claes Nordlöf och Sanna Wolk från Stockholms universitet spinner vidare på en artikel i Lag & Avtal om arbetsgivarens rätt till företagets hemligheter. Hur förhåller sig den regeln till upphovsrätten? undrar de.

  • 97817.
    Wolk, Sanna
    et al.
    Stockholm University, Faculty of Law, Department of Law, The Institute of Intellectual Property Law and Marketing Law.
    Persson, Annina
    Biobanker - om äganderätt, dispositionsrätt och immaterialrätt2003Report (Other academic)
  • 97818.
    Wolk, Sanna
    et al.
    Stockholm University, Faculty of Law, Department of Law, The Institute of Intellectual Property Law and Marketing Law.
    Persson, AnninaLevin, MarianneStockholm University.
    Immaterialrätt & Sakrätt2002Collection (editor) (Other academic)
  • 97819.
    Woll, Helene
    Stockholm University, Faculty of Social Sciences, Department of Sociology.
    Pendling, ett uttryck för det senmoderna samhället.: En studie om hur pendling påverkar det sociala livets förutsättningar.2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Den moderna livsstilen i det senmoderna samhället påverkar i stor grad hur vi lever våra liv. Tidigare hade vi vårt hem och arbete i samma ort. Det var där vi hade våra vänner och det var där, i det lokala rummet, vi skapade våra identiteter. Pendling är ett resultat av den moderna livsstilen. Mobilitet och flexibilitet hör till vardagen och är något som alla förväntas vara. Arbetspendling är idag ett vanligt fenomen och du kan bo allt längre bort från din arbetsplats. Det är fullt möjligt att bo i Eskilstuna och jobba i Stockholm tack vare utvecklingen av färdmedel och kollektivtrafiken. Detta medför dock allt längre resor och att man är borta mer från hemmet. Jag kommer att använda pendling som exempel för att visa hur det moderna samhället påverkar människors liv. Syftet är att undersöka hur pendlaren, som representerar ett uttryck för det senmoderna samhället, själv reflekterar över sitt pendlande och hur pendlingen påverkar deras liv utifrån följande aspekter: familj, fritid, ekonomi och vänner. Jag kommer också använda fenomenet som ett konkret exempel för att visa hur pendling förstärker de förändringar som den senmoderna tiden har fört med sig. Dessa är bland annat åtskillnaden av tid och rum, identitetsskapande samt frihet och teknik.

    Det jag kom fram till var att pendling påverkar människors liv ur flera aspekter, både synliga och dolda för pendlaren själv.

  • 97820. Wollaeger, Ryan T.
    et al.
    Korobkin, Oleg
    Fontes, Christopher J.
    Rosswog, Stephan K.
    Stockholm University, Faculty of Science, Department of Astronomy. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Even, Wesley P.
    Fryer, Christopher L.
    Sollerman, Jesper
    Stockholm University, Faculty of Science, Department of Astronomy. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Hungerford, Aimee L.
    Van Rossum, Daniel R.
    Wollaber, Allan B.
    Impact of ejecta morphology and composition on the electromagnetic signatures of neutron star mergers2018In: Monthly notices of the Royal Astronomical Society, ISSN 0035-8711, E-ISSN 1365-2966, Vol. 478, no 3, p. 3298-3334Article in journal (Refereed)
    Abstract [en]

    The electromagnetic transients accompanying compact binary mergers (gamma-ray bursts, after-glows and 'macronovae') are crucial to pinpoint the sky location of gravitational wave sources. Macronovae are caused by the radioactivity from freshly synthesized heavy elements, e.g. from dynamic ejecta and various types of winds. We study macronova signatures by using multidimensional radiative transfer calculations. We employ the radiative transfer code SUPERNU and state-of-the-art LTE opacities for a few representative elements from the wind and dynamical ejecta (Cr, Pd, Se, Te, Br, Zr, Sm, Ce, Nd, U) to calculate synthetic light curves and spectra for a range of ejecta morphologies. The radioactive power of the resulting macronova is calculated with the detailed input of decay products. We assess the detection prospects for our most complex models, based on the portion of viewing angles that are sufficiently bright, at different cosmological redshifts (z). The brighter emission from the wind is unobscured by the lanthanides (or actinides) in some of the models, permitting non-zero detection probabilities for redshifts up to z = 0.07. We also find that the nuclear mass model and the resulting radioactive heating rate are crucial for the detectability. While for the most pessimistic heating rate (from the finite range droplet model) no reasonable increase in the ejecta mass or velocity, or wind mass or velocity, can possibly make the light curves agree with the observed near-infrared excess after GRB130603B, a more optimistic heating rate (from the Duflo-Zuker model) leads to good agreement. We conclude that future reliable macronova observations would constrain nuclear heating rates, and consequently help constrain nuclear mass models.

  • 97821.
    Wollberg, Patrik
    Stockholm University, Faculty of Science.
    Growth-associated expression of glycolytic isoenzymes in mitogen activated human T lymphocytes1994Doctoral thesis, comprehensive summary (Other academic)
  • 97822.
    Wollin Elhouar, Elisabeth
    Stockholm University, Faculty of Humanities, Department of Ethnology, History of Religions and Gender Studies, Ethnology.
    "Det bästa som hänt men aldrig mer": Lumpen som ambivalent upplevelse2014In: Lumpen: Från mönstring till muck / [ed] Anna Maria Forssberg, Klas Kronberg, Stockholm: Bokförlaget Atlantis, 2014Chapter in book (Other academic)
  • 97823. Wollin Elhouar, Elisabeth
    Finsam och Brukarna - en intervjuundersökning: bilaga till rapport 2007:6, delrapport för Statskontoret2007Report (Other academic)
  • 97824.
    Wollin Elhouar, Elisabeth
    Stockholm University, Faculty of Humanities, Department of Ethnology, History of Religions and Gender Studies, Ethnology.
    Lumpen som ambivalent berättelse2014In: Lumpen: identitet och materiella minnen / [ed] Anna Maria Forssberg, Klas Kronberg, Stockholm: Armémuseum , 2014Chapter in book (Other academic)
  • 97825.
    Wollin Elhouar, Elisabeth
    Stockholm University, Faculty of Humanities, Department of Ethnology, History of Religions and Gender Studies.
    Tillhör vi Sveriges framtid?: En etnologisk studie av vardag och hållbarhet i norrländsk glesbygd2014Doctoral thesis, monograph (Other academic)
    Abstract [en]

    This dissertation concerns everyday life and sustainability in sparsely populated parts of Northern Sweden. The aim is to study how sustainability is constructed, experienced, practised and perceived in a field of tension between local everyday life and political discourses.

    Apart from written material, the study is based on interviews and observations performed in the municipalities Strömsund and Örnsköldsvik. Empirical themes include everyday life movements and means of transport, work and spare time practices, and experiences of time. The central theoretical concepts used are everyday life, provinces of meanings, typifications, community, place and policy. These concepts shape the analysis of processes pertaining to space and movement, work and leisure, time and tempo.

    The study shows gaps between sustainability policies and local experiences of sustainability. In order to highlight complications like the ones between the center and the periphery, polices and lived experiences, I have stressed the importance of the social dimension of sustainability. It is nevertheless important to nuance the concept of social sustainability since it carries an ambiguity, for example in terms of collisions with other dimensions of sustainability. Socially good life styles have a tendency to collide with the ecological definitions of sustainability. The emphasis on the social dimensions has been done in order to draw attention to unfair effects from a time-space perspective, and to point at the problem with urban norms in policies on sustainability.

  • 97826. Wollin Elhouar, Elisabeth
    et al.
    Hansen, Kjell
    Tidtabellens tyranni och frihetens pris2011Report (Other academic)
  • 97827.
    Wollin, Nils
    Stockholm College.
    Drottningholms lustträdgård och park: en konsthistorisk undersökning1927Doctoral thesis, monograph (Other academic)
  • 97828.
    Wollmann, Linnea
    Stockholm University, Faculty of Law, Department of Law.
    Bevisbördan i asylprocessen2016Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
  • 97829.
    Woloszyk, Adrian
    Stockholm University, Faculty of Humanities, Department of Media Studies, Fashion Studies.
    Deconstruction 3.0: A study of a guerrilla attack from within the postmodern fashion system by the post-Soviet collective of Vetements2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim of this thesis “Deconstruction 3.0” is to show how the third wave of deconstruction in fashion is deconstructing the second [postmodern] French luxury fashion system. The deconstructionists of the post-Soviet collective – Demna and Guram Gvasalia, Gosha Rubchinskiy, and Lotta Volkova – question and deconstruct the established apparatus of the postmodern fashion system and its business model. With their business strategies and with help of demand by post-postmodern consumer culture proposed and predicted by Douglas B. Holt (2002), the post-Soviet collective constructs new business models and thus we are entering a post-postmodern fashion system.

    I have used a twofold methodology from the disciplines of business administration and humanities. In the literature review, I have aimed to close gaps between different scholars and made a concluding section of the postmodern fashion system and its business model, a synthesis that lies in parallel with Peter Drucker’s (1957) thoughts on postmodern organisational theory. Through the empirics and analysis with help of Jacques Derrida’s (1972) concept of deconstruction, I propose, in the end, a dialectic model between the established postmodern apparatus and the new and diametrically opposed post-postmodern apparatus operated by the post-Soviet collective.

  • 97830.
    Wolpher, Henriette
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Ruthenium(II) Polypyridyl Complexes in Supramolecular Systems relevant to Artificial Photosynthesis2005Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    This thesis describes the synthesis and properties of ruthenium complexes relevant to artificial photosynthesis. The work includes preparation of RuIIpolypyridine complexes as well as multi component systems where RuII(bpy)3 or RuII(tpy)2 type complexes are used as photosesnsitizers.

    In the first part, the synthesis and characterisation of bipyridyl(pyridyl)methane type ligands and the corresponding ruthenium(II) bistridentate polypyridyl complexes is described. The bipyridyl-pyridyl methane type ligands were designed to increase the excited state lifetime of ruthenium(II) bisterpyridine-type complexes by altering the ligand field as compared to normal terpyridine ligands.

    In the second part photoinduced electron transfer and formation of charge separated states in donor-photosensitizer dyads or donor-photosensitizer-acceptor triads is studied. The first covalently linked donor-photosensitizer-acceptor triad with tyrosine as electron donor was prepared, and long lived light induced charge separation was observed. RuIIterpyridine complexes linked to carotenoid or tyrosine were also prepared, for studies of light induced charge separation on a TiO2 surface. Tryptofan was covalently linked to Ru(bpy)3 and proton coupled electron transfer from tryptophan to photogenerated ruthenium(III) was demonstrated. A pH-dependent study of the electron transfer rate gave insight into the mechanism of proton coupled electron transfer in amino acids.

    Finally, the last part of the thesis presents the preparation and properties of the first complex containing a photosensitizer covalently linked to a Fe-hydrogenase active site model.

  • 97831.
    Wolpher, Henriette
    et al.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Abrahamsson, Maria
    Eriksson, Lars
    Norrby, Per-Ola
    Johansson, Olof
    Bergquist, Jonas
    Hammarström, Leif
    Åkermark, Björn
    Ruthenium complexes of a bipyridyl(pyridyl)methane ligand: Effect of substituents at the methylene group on structure and photophysicsManuscript (Other academic)
  • 97832.
    Wolpher, Henriette
    et al.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Borgström, Magnus
    Hammarström, Leif
    Bergquist, Jonas
    Sundström, Villy
    Styring, Stenbjörn
    Sun, Licheng
    Åkermark, Björn
    Synthesis and Properties of an Iron Hydrogenase Active Site Model Linked to Ruthenium tris-Bipyridine Photosensitizer2003In: Inorganic Chemical Communications, Vol. 6, p. 989-991Article in journal (Refereed)
  • 97833. Wolpher, Henriette
    et al.
    Johansson, Olof
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Abrahamsson, Maria
    Kritikos, Mikael
    Sun, Licheng
    Åkermark, Björn
    A tridentate ligand for preparation of bisterpyridine-like ruthenium(II) complexes with an increased excited state lifetime2004In: Inorganic Chemistry Communications, ISSN 1387-7003, Vol. 7, no 3, p. 337-340Article in journal (Refereed)
  • 97834.
    Wolpher, Henriette
    et al.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Johansson, Olof
    Abrahamsson, Maria
    Kritikos, Mikael
    Sun, Licheng
    Åkermark, Björn
    A tridentate ligand for preparation of bisterpyridine-like ruthenium(II) complexes with an increased excited state lifetime2004In: Inorganic Chemistry Communications, ISSN 1387-7003, Vol. 7, no 3, p. 337-340Article in journal (Refereed)
  • 97835.
    Wolpher, Henriette
    et al.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Pan, Jingxi
    Johansson, Anh
    Lundqvist, Maria
    Persson, Petter
    Bergquist, Jonas
    Polivka, Tomas
    Sun, Licheng
    Åkermark, Björn
    Electron transfer studies of terpyridine based ruthenium(II)-donor dyads attached to nanostructured TiO2Manuscript (Other academic)
  • 97836.
    Wolpher, Henriette
    et al.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Sinha, Subrata
    Pan, Jingxi
    Johansson, Anh
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Lundqvist, Maria J.
    Persson, Petter
    Lomoth, Reiner
    Bergquist, Jonas
    Sun, Licheng
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Sundström, Villy
    Åkermark, Björn
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Polívka, Tomás
    Synthesis and electron transfer studies of ruthenium-terpyridine-based dyads attached to nanostructured TiO22007In: Inorganic Chemistry, ISSN 0020-1669, Vol. 46, no 3, p. 638-651Article in journal (Refereed)
  • 97837.
    Wolska, Joanna
    Stockholm University, Faculty of Humanities, Department of Art History.
    Ringkors från Gotlands medeltid1997Doctoral thesis, monograph (Other academic)
    Abstract [en]

    This dissertation examines the monumental wooden roods which can be found in many of Gotlandis chur ches, and on which the body of Christ is surrounded by a glory in the shape of a ring or a solid disc. This type of triumphal cross occurred in Gotland between the beginning of the 13th and the middle of the 15th centuries. The material studied consists of twenty-six sculptures, which are analysed from an iconographic and a stylistic point of view. These crosses, whose placing within the church space was determined by their sacramental function connected with the celebration of the Eucharist, combine tropaeic-doxological thinking with eschatological ideas. These crosses with a ring or a disc are an expression of the dogma of Trinitarian perichoresis. The ring or wheel cross has its origins in early Christian art. There is evidence to suggest that this iconographic formula is associated with the votive cross or Crux Gemmata from Golgotha. It has not been possible to provide an unequivocal answer to the question of how this type of crucifix came to Gotland. The stylistic analysis does no more than confirm that the crucifixes which introduced the iconographic formula to the island, i.e. the crucified figure from Hablingbo church and the crucifixes in the churches at Lau and Alva, do not derive from Saxon art.

    However, it has been possible to ascertain that various outside influences, namely from Denmark in the case of the crucifixes in the churches at Stånga, Lau and Fide, from England in the Öja church crucifix, and from France in the crucifixes at Barlingbo, Sanda and Eskelhem, have all contributed to the local tradition of monumental ring crucifixes.

    A new relative chronology for these crucifixes has been established. The study concludes with a comprehensive catalogue, giving a fully detailed description of every crucifix.

  • 97838.
    Woltter, Michaela
    Stockholm University, Faculty of Social Sciences, Department of Human Geography.
    Ett stadsbyggnadskontors kapacitet: En studie över omställningen till att planera för mer hållbart resande i Västra Roslags-Näsby, Täby kommun2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Denna uppsats har syftat till att öka förståelsen för hur omställningen till att planera för mer hållbart resande upplevs och kan hanteras av tjänstemän på stadsbyggnadskontoret i Täby kommun. Genom en kvalitativ studie har tjänstemän i projektgruppen för Västra Roslags-Näsby liksom konsulter inriktade mot mobility management intervjuats. Utifrån begrepp som hållbar mobilitet, resilienta institutioner, mobility management och livsvärldsperspektiv har respondenternas upplevelser och erfarenheter av att arbeta med hållbart resande i stadsbyggnadsprocessen studerats. Resultatet visar att tjänstemännen upplever en förändring på stadsbyggnadskontoret i hur det talas om transporter och mobilitet på förvaltningen. Idag upplevs det vara mer självklart att även inkludera mer hållbara transportmedel såsom cykel, gång och kollektivtrafik i samhälls- och trafikplaneringen gentemot hur transporter tidigare hanterats på förvaltningen. En viktig anledning till detta tycks vara de enskilda tjänstemännen som utifrån eget engagemang och kunskap driver frågor om hållbart resande och mobility management liksom att omvärlden förändras vilket gör att hållbarhet och hållbart resande även får genomslag i Täbys kommunala planer och strategier. Trots en pågående förändring existerar dock normer och traditioner på stadsbyggnadskontoret som kan försvåra omställningen. Detta innebär att kapaciteten i stor utsträckning tycks finnas i förmågan hos tjänstemännen att utmana dessa strukturer. 

  • 97839.
    Wong, Fiona
    et al.
    Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
    Cousins, Ian T.
    Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
    MacLeod, Matthew
    Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
    Bounding uncertainties in intrinsic human elimination half-lives and intake of polybrominated diphenyl ethers in the North American population2013In: Environment International, ISSN 0160-4120, E-ISSN 1873-6750, Vol. 59, p. 168-174Article in journal (Refereed)
    Abstract [en]

    We examine the balance between intake, intrinsic elimination half-lives and human body burdens measured in biomonitoring for polybrominated diphenyl ethers (PBDEs) in the North American population using the population-level pharmacokinetic model developed by Ritter et al. (2011). Empirical data are collected from two studies that made total intake estimates for the North American population for the years 2004 and 2005, and eight biomonitoring studies for the years 1992 to 2009. We assume intake of PBDEs increased exponentially to a peak in 2004, and has since exponentially declined. The model is fitted to the empirical PBDE intake and biomonitoring data on PBDE body burden using a least-square optimization method by adjusting the intake in 2004 and 2038, and the intrinsic elimination rate constants, which can be expressed as equivalent half-lives. We. fit the model in two types of scenarios using different combinations of PBDE intake estimates and biomonitoring data. Our modeling results indicate that there is an inconsistency between the PBDE intake estimates and the biomonitoring data, and that the inconsistency is likely due to underestimation of population-level intake. More efforts are needed to better characterize intake rates and identify potentially-unrecognized exposure pathways. Additional age-stratified biomonitoring data, and time trends of PBDE intakes would better constrain the model and provide an improved estimation of the intrinsic elimination half-lives.

  • 97840.
    Wong, Fiona
    et al.
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
    de Wit, Cynthia A.
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
    Newton, Seth R.
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
    Concentrations and variability of organophosphate esters, halogenated flame retardants, and polybrominated diphenyl ethers in indoor and outdoor air in Stockholm, Sweden2018In: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 240, p. 514-522Article in journal (Refereed)
    Abstract [en]

    We investigated the concentrations and temporal variability of organophospate esters (OPEs), halogenated flame retardants (HFRs) and polybrominated diphenyl ethers (PBDEs) in indoor and outdoor urban air in Stockholm, Sweden over one year (2014-2015) period. The median concentrations of the three target chemical groups (OPEs, HFRs, PBDEs) were 1-2 orders of magnitude higher in indoor air than outdoor urban air. OPEs were the most abundant target FRs with median concentrations in indoor (Sigma 10OPE = 340 000 pg/m(3)) and outdoor urban (Sigma 10OPEs = 3100 pg/m(3)) air, being 3 orders of magnitude greater than for HFRs in indoor (Sigma(15)HFRs = 120 pg/m(3)) and outdoor urban (Sigma(15)HFRs = 1.6 pg/m(3)) air. In indoor air, PBDE concentrations (Sigma 17PBDEs =33 pg/m(3)) were lower than for the HFRs, but in outdoor urban air, concentrations (Sigma 17PBDEs = 1.1 pg/m(3)) were similar to HFRs. The most abundant OPEs in both the indoor and outdoor urban air were tris(2-butoxyethyl)phosphate (TBOEP), tris(chloroisopropyl) phosphate (TCIPP), tris(2-chloroethyl)phosphate (TCEP), tri-n-butyl-phosphate (TnBP), triphenyl phosphate (TPhP) and tris(1,3-dichloroisopropyl)phosphate (TDCIPP). TCIPP in indoor air was found in the highest concentrations and showed the greatest temporal variability, which ranged from 85 000 to 1 900 000 pg/m(3) during the one-year sampling period. We speculate that activities in the building, e.g. floor cleaning, polishing, construction, introduction of new electronics and changes in ventilation rate could explain its variation. Some OPEs (TnBP, TCEP, TCIPP, TDCIPP and TPhP), HFRs/PBDEs (pentabromotoluene, 2, 3-dibromopropyl 2, 4, 6-tribromophenyl ether, hexabromobenzene, BDE-28, -47, and -99) in outdoor urban air showed seasonality, with increased concentrations during the warm period (p < 0.05, Pearson's r ranged from 0.45 to 0.91). The observed seasonality for OPEs was probably due to changes in primary emission, and those for the HFRs and PBDEs was likely due to re-volatilization from contaminated surfaces.

  • 97841.
    Wong, Fiona
    et al.
    Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
    Jantunen, Liisa M.
    Papakyriakou, Tim
    Staebler, Ralf M.
    Stern, Gary A.
    Bidleman, Terry F.
    Comparison of micrometeorological and two-film estimates of air-water gas exchange for alpha-hexachlorocyclohexane in the Canadian archipelago2012In: Environmental science and pollution research international, ISSN 0944-1344, E-ISSN 1614-7499, Vol. 19, no 6, p. 1908-1914Article in journal (Refereed)
    Abstract [en]

    The air-sea gas exchange of alpha-hexachlorocyclohexane (alpha-HCH) in the Canadian Arctic was estimated using a micrometeorological approach and the commonly used Whitman two-film model. Concurrent shipboard measurements of alpha-HCH in air at two heights (1 and 15 m) and in surface seawater were conducted during the Circumpolar Flaw Lead study in 2008. Sampling was carried out during eight events in the early summer time when open water was encountered. The micrometeorological technique employed the vertical gradient in air concentration and the wind speed to estimate the flux; results were corrected for atmospheric stability using the Monin-Obukhov stability parameter. The Whitman two-film model used the concentrations of alpha-HCH in surface seawater, in bulk air at 1 and 15 m above the surface, and the Henry's law constant adjusted for temperature and salinity to derive the flux. Both approaches showed that the overall net flux of alpha-HCH was from water to air. Mean fluxes calculated using the micrometeorological technique ranged from -3.5 to 18 ng m(-2) day(-1) (mean 7.4), compared to 3.5 to 14 ng m(-2) day(-1) (mean 7.5) using the Whitman two-film model. Flux estimates for individual events agreed in direction and within a factor of two in magnitude for six of eight events. For two events, fluxes estimated by micrometeorology were zero or negative, while fluxes estimated with the two-film model were positive, and the reasons for these discrepancies are unclear. Improvements are needed to shorten air sampling times to ensure that stationarity of meteorological conditions is not compromised over the measurement periods. The micrometeorological technique could be particularly useful to estimate fluxes of organic chemicals over water in situations where no water samples are available.

  • 97842.
    Wong, Fiona
    et al.
    Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
    Kurt-Karakus, Perihan
    Bidleman, Terry F.
    Fate of Brominated Flame Retardants and Organochlorine Pesticides in Urban Soil: Volatility and Degradation2012In: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 46, no 5, p. 2668-2674Article in journal (Refereed)
    Abstract [en]

    As the uses of polybrominated diphenyl ethers (BDEs) are being phased out in many countries, soils could become a secondary emission source to the atmosphere. It is also anticipated that the demand for alternative brominated flame retardants (BFRs) will grow, but little is known about their environmental fate in soils. In this study, the volatility degradation of BFRs and organochlorine pesticides (OCPS) in soil was investigated. A low organic carbon (5.6%) urban soil was spiked with a suite of BFRs and OCPs, followed by incubation under laboratory condition for 360 days. These included BDE- 17, -28, -47, -99; alpha- and beta-1,2-dibromo-4-(1,2-dibromoethyl)cyclohexane (TBECH), beta-1,2,5,6-tetrabromocyclooctane (TBCO), and 2,3-dibromopropyl-2,4,6-tribromophenyl ether (DPTE), OCPs: a-hexachlorocyclohexane (alpha-HCH) and C-13(6)-alpha-HCH, trans-chlordane (TC), and C-13(10)-TC. The volatility of spiked chemicals was investigated using a fugacity meter to measure the soil-air partition coefficient (K-SA). K-SA of some spiked BFRs and OCPs increased from Day 10 to 60 or 90 and leveled off afterward. This suggests that the volatility of BFRs and OCPs decreases over time as the chemicals become more strongly bound to the soil. Degradation of alternative BFRs (alpha- and beta-TBECH, beta-TBCO, DPTE), BDE-17, and alpha-HCH (C-13-labeled and nonlabeled) was evident in soils over 360 days, but no degradation was observed for the BDE-28, -47, -99, and TC (C-13-labeled and nonlabeled). A method to separate the enantiomers of alpha-TBECH and beta-TBCO was developed and their degradation, along with alpha-HCH (C-13-labeled and nonlabeled) was enantioselective. This is the first study which reports the enantioselective degradation of chiral BFRs in soils. Discrepancies between the enantiomer fraction (EF) of chemicals extracted from the soil by dichloromethane (DCM) and air were found. It is suggested that DCM removes both the sequestered and loosely bound fractions of chemicals in soil, whereas air accesses only the loosely bound fraction, and these two pools are subject to different degrees of enantioselective degradation. This calls for caution when interpreting EFs obtained from DCM extraction of soil with EFs in ambient air.

  • 97843.
    Wong, Fiona
    et al.
    Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
    MacLeod, Matthew
    Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
    Mueller, Jochen F.
    Cousins, Ian T.
    Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
    Enhanced Elimination of Perfluorooctane Sulfonic Acid by Menstruating Women: Evidence from Population-Based Pharmacokinetic Modeling2014In: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 48, no 15, p. 8807-8814Article in journal (Refereed)
    Abstract [en]

    Human biomonitoring studies have shown that concentrations of perfluorooctane sulfonic acid (PFOS) in men are higher than in women. We investigate sex differences in elimination of PFOS by fitting a population-based pharmacokinetic model to six cross-sectional data sets from 1999 to 2012 from the US National Health and Nutrition Examination Survey (NHANES) and derive human first-order elimination rate constants (k(E)) and corresponding elimination half-lives (t(1/2)) for PFOS, where t(1/2) = In 2/k(E). We use a modified version of the Ritter population-based pharmacokinetic model and derive elimination rate constants separately for men and women. The model accounts for population-average lifetime changes in PFOS intake, body weight, and menstruation rate. We compare the model-derived elimination rate constant for hypothetical nonmenstruating women to the elimination rate constant for men and women when menstruation is included as a loss process to evaluate the hypothesis that loss of PFOS by menstruation is an important process for women. The modeled elimination half-life for men is 4.7 years, and the modeled elimination half-life for women when excluding losses from menstruation is 3.7 years. The elimination half-life for women when menstruation is included in the model is 4.0 years. Thus, menstruation accounts for 3096 of the discrepancy in elimination of PFOS between men and women. The remaining discrepancy is likely due to other sex-specific elimination routes that are not considered in our modeling.

  • 97844.
    Wong, Fiona
    et al.
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
    MacLeod, Matthew
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
    Mueller, Jochen F.
    Cousins, Ian T.
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
    Response to Comment on Enhanced Elimination of Perfluorooctane Sulfonic Acid by Menstruating Women: Evidence from Population-based Pharmacokinetic Modeling2015In: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 49, no 9, p. 5838-5839Article in journal (Refereed)
  • 97845.
    Wong, Fiona
    et al.
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
    Suzuki, Go
    Michinaka, Chieko
    Yuan, Bo
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
    Takigami, Hidetaka
    de Wit, Cynthia A.
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
    Dioxin-like activities, halogenated flame retardants, organophosphate esters and chlorinated paraffins in dust from Australia, the United Kingdom, Canada, Sweden and China2017In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 168, p. 1248-1256Article in journal (Refereed)
    Abstract [en]

    The concentrations of organic flame retardants (FRs) and dioxin-like activities in dust collected from five countries were investigated. The correlations between the concentrations of the different groups of FRs and dioxin-like activities were examined. Chlorinated paraffins (CPs, C-9 to C-31) were found in the highest concentration (median Sigma CP 700 mu g/g, range 280-4750 mu g/g), followed by organophosphate esters (median Sigma 13OPEs 56 mu g/g, range 21-110 mu g/g), halogenated flame retardants (median Sigma(17)HFRs 3.3 mu g/g, range 0.87-14 mu g/g) and polybrominated diphenyl ethers (median Sigma 17PBDEs 2.8 mu g/g, range 0.46-11 mu g/g). There were no significant differences in concentrations of the FRs among the countries but differences in PBDE and CP congener profiles were found. BDE209 predominated in dust from Australia, the UK, Sweden and China, ranging from 50 to 70% of total PBDEs. The lowest percentage of BDE209 was found in the dust from Canada, representing only 20% of total PBDEs. For CPs in dust from Sweden, the long-chain CPs (especially C-18 congeners) predominated, while for other countries, medium-chain CPs (especially C-14 congeners) predominated. The dioxin-activities of the dusts ranged from 58 to 590 pg CALUX-TEQ/g, and had a median of 200 pg CALUX-TEQ/g. There were significant positive correlations between concentrations of PBDEs and CPs with dioxin-like activities. The dioxin-like activity may be due to the presence of polychlorinated or polybrominated dioxin/furans (PBDD/DFs) or polychlorinated naphthalenes (PCNs) in the dust. The PBDD/DFs are known impurities and degradation product of the penta-BDE mixture, and PCNs are known impurities of CPs which exhibit dioxin-like activities.

  • 97846.
    Wong, Grace Yee
    et al.
    Stockholm University, Faculty of Science, Stockholm Resilience Centre. Center for International Forestry Research (CIFOR), Indonesia.
    Loft, Lasse
    Brockhaus, Maria
    Yang, Anastasia Lucy
    Thu, Thuy
    Assembe-Mvondo, Samuel
    Luttrell, Cecilia
    An Assessment Framework for Benefit Sharing Mechanisms to Reduce Emissions from Deforestation and Forest Degradation within a Forest Policy Mix2017In: Environmental Policy and Governance, ISSN 1756-932X, E-ISSN 1756-9338, Vol. 27, no 5, p. 436-452Article in journal (Refereed)
    Abstract [en]

    Policy instruments for implementing the Reducing Emissions from Deforestation and Forest Degradation and the enhancement of forest carbon stocks (REDD+) mechanism operate within an orchestra of policy mixes that affect the forest and other land sectors. How will policymakers choose between the myriad of options for distributing REDD+ benefits, and be able to evaluate its potential effectiveness, efficiency and equity (3Es)? This is a pressing issue given the results-based aspect of REDD+. We present here a three-element assessment framework for evaluating the outcomes and performance of REDD+ benefit sharing mechanisms, using the criteria of effectiveness, efficiency and equity: (1) the structures (objective and policies) of a REDD+ benefit sharing mechanism; (2) the broader institutional and policy contexts underlying forest governance; (3) outcomes of REDD+ including emission reductions, ecosystem service provision and poverty alleviation. A strength of the assessment framework is its flexible design to incorporate indicators relevant to different contexts; this helps to generate a shared working understanding of what is to be evaluated in the different REDD+ benefit sharing mechanisms (BSMs) across complex socio-political contexts. In applying the framework to case studies, the assessment highlights trade-offs among the 3Es, and the need to better manage access to information, monitoring and evaluation, consideration of local perceptions of equity and inclusive decisionmaking processes. The framework does not aim to simplify complexity, but rather serves to identify actionable ways forward towards a more efficient, effective and equitable implementation and re-evaluation of REDD+ BSMs as part of reflexive policymaking.

  • 97847.
    Wood, Heather
    Stockholm University, Faculty of Science, Department of Physical Geography.
    EU tree density limits in wooded pastures and their effects on bat populations within traditional agricultural landscapes2016Independent thesis Advanced level (degree of Master (Two Years)), 40 credits / 60 HE creditsStudent thesis
    Abstract [en]

    The European Union’s Common Agricultural Policy (CAP) recommends subsidies are only granted for wooded pastures with less than 100 trees per hectare. This arbitrary guidance exists despite these habitats being among the most biodiverse in rural Europe. To date, most biodiversity research in agricultural landscapes has focused on plants, birds and invertebrates. Bats are also important bio-indicators of agricultural landscapes, but to my knowledge no study has explicitly focused on bat diversity in relation to this policy. In this thesis, I investigate how bat activity, foraging and species richness is affected in twenty-six wooded pastures along a gradient of tree density, from open to dense pastures. In parallel, nearby open fields and deciduous woodlands were sampled, creating a triplet of habitats being surveyed simultaneously. Bat species were divided into feeding guilds to explore how functional diversity affects response to habitat and landscape configuration. The overall contribution of wooded pastures to the species pool of bats within a heterogeneous, low intensity agricultural landscape was also explored. I found a consistent increase in bat activity and species richness within wooded pastures along the tree density gradient and across most feeding guilds. This in combination with shrub density was the strongest predictor of total bat activity and foraging; whilst structural diversity of pastures was most strongly correlated with species richness. Wooded pastures contributed more to total species richness than forested habitats. Interestingly, higher activity levels of forest feeding specialists were observed in pastures compared to forests. At the landscape level, amount of water and deciduous forest were the strongest predictors of bat activity. This study demonstrates that tree density within wooded pastures is not a limiting factor of bat activity and that other habitat and landscape parameters are important. Wooded pastures may also be an important component of current landscapes with little remaining deciduous forest. In conclusion, focusing solely on tree density limits will not help to preserve the ecological requirements for bats within agricultural landscapes.

  • 97848.
    Wood, Heather
    et al.
    Stockholm University, Faculty of Science, Department of Physical Geography.
    Lindborg, Regina
    Stockholm University, Faculty of Science, Department of Physical Geography.
    Jakobsson, Simon
    Stockholm University, Faculty of Science, Department of Physical Geography.
    European Union tree density limits do not reflect bat diversity in wood-pastures2017In: Biological Conservation, ISSN 0006-3207, E-ISSN 1873-2917, Vol. 210, p. 60-71Article in journal (Refereed)
    Abstract [en]

    The European Union's Common Agricultural Policy (CAP) recommends subsidies are only granted for wood-pastures with < 100 trees/ha. This guidance exists despite these habitats being among the most biodiverse in boreal Europe and currently under threat due to land conversion. Bats are important bio-indicators of agricultural landscapes, but bat diversity has not explicitly been studied in relation to this policy. We investigate how bat activity, foraging, species richness and functional groups are affected in twenty-six wood-pastures along a gradient of tree density, from open to dense. In parallel, open fields and deciduous forests were sampled and the effect of the surrounding landscape configuration was explored. Our results show a consistent increase in total bat activity, foraging activity and species richness within wood-pastures along the tree density gradient. We find optimal tree densities within wood-pastures are higher than values reported in previous studies, and suggest thresholds might depend on the landscape context. Shrub density was a strong predictor of total bat activity and foraging; whilst structural variation of tree size in wood-pastures was most strongly correlated with species richness. We show that wood-pastures are an important habitat and in comparison to forests they contribute to higher bat species richness and activity levels. Interestingly, higher activity levels of forest feeding specialists were observed in wood-pastures compared to forests. At the landscape level, amount of water in the landscape was the strongest predictor of bat activity whilst deciduous forest mostly influenced foraging activity. This study demonstrates that tree density within wood-pastures is not a limiting factor of bat activity and foraging and that other habitat and landscape parameters are important. Thereby focusing solely on tree density limits will not help to promote the ecological requirements for bats. Instead we suggest that a results based approach to CAP payments would be preferable.

  • 97849. Wood, M.
    et al.
    Jogler, T.
    Dumm, Jonathan
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Funk, S.
    Monte Carlo studies of medium-size telescope designs for the Cherenkov Telescope Array2016In: Astroparticle physics, ISSN 0927-6505, E-ISSN 1873-2852, Vol. 72, p. 11-31Article in journal (Refereed)
    Abstract [en]

    We present studies for optimizing the next generation of ground-based imaging atmospheric Cherenkov telescopes (IACTs). Results focus on mid-sized telescopes (MSTs) for CTA, detecting very high energy gamma rays in the energy range from a few hundred GeV to a few tens of TeV. We describe a novel, flexible detector Monte Carlo package, FAST (FAst Simulation for imaging air cherenkov Telescopes), that we use to simulate different array and telescope designs. The simulation is somewhat simplified to allow for efficient exploration over a large telescope design parameter space. We investigate a wide range of telescope performance parameters including optical resolution, camera pixel size, and light collection area. In order to ensure a comparison of the arrays at their maximum sensitivity, we analyze the simulations with the most sensitive techniques used in the field, such as maximum likelihood template reconstruction and boosted decision trees for background rejection. Choosing telescope design parameters representative of the proposed Davies-Cotton (DC) and Schwarzchild-Couder (SC) MST designs, we compare the performance of the arrays by examining the gamma-ray angular resolution and differential point-source sensitivity. We-further investigate the array performance under a wide range of conditions, determining the impact of the number of telescopes, telescope separation, night sky background, and geomagnetic field. We find a 30-40% improvement in the gamma-ray angular resolution at all energies when comparing arrays with an equal number of SC and DC telescopes, significantly enhancing point-source sensitivity in the MST energy range. We attribute the increase in point-source sensitivity to the improved optical point-spread function and smaller pixel size of the SC telescope design.

  • 97850. Wood, R.
    et al.
    Mechoso, C. R.
    Bretherton, C. S.
    Weller, R. A.
    Huebert, B.
    Straneo, F.
    Albrecht, B. A.
    Coe, H.
    Allen, G.
    Vaughan, G.
    Daum, P.
    Fairall, C.
    Chand, D.
    Gallardo Klenner, L.
    Garreaud, R.
    Grados, C.
    Covert, D. S.
    Bates, T. S.
    Krejci, Radovan
    Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
    Russell, L. M.
    de Szoeke, S.
    Brewer, A.
    Yuter, S. E.
    Springston, S. R.
    Chaigneau, A.
    Toniazzo, T.
    Minnis, P.
    Palikonda, R.
    Abel, S. J.
    Brown, W. O. J.
    Williams, S.
    Fochesatto, J.
    Brioude, J.
    Bower, K. N.
    The VAMOS Ocean-Cloud-Atmosphere-Land Study Regional Experiment (VOCALS-REx): goals, platforms, and field operations2011In: Atmospheric Chemistry And Physics, ISSN 1680-7316, E-ISSN 1680-7324, Vol. 11, no 2, p. 627-654Article in journal (Refereed)
    Abstract [en]

    The VAMOS(1) Ocean-Cloud-Atmosphere-Land Study Regional Experiment (VOCALS-REx) was an international field program designed to make observations of poorly understood but critical components of the coupled climate system of the southeast Pacific. This region is characterized by strong coastal upwelling, the coolest SSTs in the tropical belt, and is home to the largest subtropical stratocumulus deck on Earth. The field intensive phase of VOCALS-REx took place during October and November 2008 and constitutes a critical part of a broader CLIVAR program (VOCALS) designed to develop and promote scientific activities leading to improved understanding, model simulations, and predictions of the southeastern Pacific (SEP) coupled ocean-atmosphere-land system, on diurnal to interannual timescales. The other major components of VOCALS are a modeling program with a model hierarchy ranging from the local to global scales, and a suite of extended observations from regular research cruises, instrumented moorings, and satellites. The two central themes of VOCALS-REx focus upon (a) links between aerosols, clouds and precipitation and their impacts on marine stratocumulus radiative properties, and (b) physical and chemical couplings between the upper ocean and the lower atmosphere, including the role that mesoscale ocean eddies play. A set of hypotheses designed to be tested with the combined field, monitoring and modeling work in VOCALS is presented here. A further goal of VOCALS-REx is to provide datasets for the evaluation and improvement of large-scale numerical models. VOCALS-REx involved five research aircraft, two ships and two surface sites in northern Chile. We describe the instrument pay-loads and key mission strategies for these platforms and give a summary of the missions conducted.

1954195519561957195819591960 97801 - 97850 of 102019
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf