Physics
Scientific paper
Sep 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007acpd....712959s&link_type=abstract
Atmospheric Chemistry and Physics Discussions, Volume 7, Issue 5, 2007, pp.12959-12999
Physics
1
Scientific paper
Iodine species in the troposphere are linked to ozone depletion and new particle formation. In this study, a full year of iodine monoxide (IO) columns retrieved from measurements of the SCIAMACHY satellite instrument is presented, alongside a discussion of their uncertainties and the detection limit. The largest amounts of IO are found near springtime Antarctica, where ground-based measurements have positively detected iodine compounds before. A seasonal variation of iodine monoxide in Antarctica is revealed with high values in springtime, slightly less IO in the summer period and again larger amounts in autumn. In winter, no elevated IO levels are found in the areas accessible to satellite measurements. This seasonal cycle is in good agreement with recent ground-based measurements in Antarctica. In the Arctic region, no elevated IO levels were found in the whole time period analysed, arguing for different conditions existing in the two Polar Regions. To investigate possible release mechanisms such as inorganic release or biogenic precursors, comparisons of IO results with tropospheric BrO maps, measurements of chlorophyll concentration, and ice coverage are discussed. Some parallels and interesting differences between IO and BrO temporal and spatial distributions are pointed out. Although no full interpretation can be given at this point, the large spatial coverage of satellite measurements and the availability of a long-term dataset give some new indications and understandings of the abundances and distributions of iodine compounds in the troposphere.
Burrows John P.
Kirk Harold
Oetjen Hilke
Richter Achim
Roscoe Howard K.
No associations
LandOfFree
Observations of iodine monoxide (IO) columns from satellite does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Observations of iodine monoxide (IO) columns from satellite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observations of iodine monoxide (IO) columns from satellite will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1008931