Developing water change spectra and distinguishingchange drivers worldwide
2014 (English)In: Geophysical Research Letters, ISSN 0094-8276, Vol. 41, no 23, 8377-8386 p.Article in journal (Refereed) Published
The separate and combined effects of different drivers of change to water fluxes and resources onland (CWOL) remain difficult to distinguish and largely unknown, particularly at a global scale. Our studyanalyzes CWOL during the period 1901–2008, based on available hydroclimatic data for up to 859 hydrologicalbasins. We develop a worldwide spectrum of change magnitudes and directions in Budyko space, from whichwe distinguish climate and landscape drivers of CWOL. We find that landscape drivers (e.g., changes in landand water use, water storage or water phase) are needed to explain CWOL in at least 74% of the basins studied.The water change effects of such landscape drivers are mostly opposite to those of atmospheric climatechange. The change spectrum approach we developed provides a useful tool for quantifying and visualizingCWOL and for distinguishing the effects of climate and landscape drivers across regions and scales.
Place, publisher, year, edition, pages
American Geophysical Union (AGU), 2014. Vol. 41, no 23, 8377-8386 p.
budyko, runoff, precipitation, evapotranspiration, evaporative index, land use, water use, worldwide
Physical Geography Climate Research Oceanography, Hydrology, Water Resources
Research subject Hydrology
IdentifiersURN: urn:nbn:se:su:diva-113099DOI: 10.1002/2014GL061848ISI: 000348462000031OAI: oai:DiVA.org:su-113099DiVA: diva2:782998
ProjectsVR, project 2009-3221
FunderSwedish Research Council, 2009-3221A multiscale, cross‐disciplinary approach to the study of climate change effect on ecosystem services and biodiversity