Retrieval of the global mesopsheric sodium density from the Odin satellite
2007 (English)In: Geophysical Research Letters, Vol. 34, no L04813Article in journal (Refereed) Published
Satellite observations of the Na D dayglow at 589 nm provide a global database for the climatology of the mesospheric sodium layer. More than five years of Na D limb observations are available from the Optical Spectrograph and InfraRed Imager System onboard the Odin satellite. We describe a robust retrieval method that provides individual sodium density profiles with a typical accuracy of 20% and altitude resolution of 2 km. Retrieved column abundances and density profiles are validated against sodium resonance lidar measurements at mid-latitudes. Examples of the seasonal and latitudinal variation of the sodium layer illustrate Odin's potential for climatological studies of mesospheric metals.
Place, publisher, year, edition, pages
2007. Vol. 34, no L04813
IdentifiersURN: urn:nbn:se:su:diva-10930DOI: doi:10.1029/2006GL028687OAI: oai:DiVA.org:su-10930DiVA: diva2:177449