We investigated the impact of radiosonde data from the ice-free Arctic Ocean obtained by the Japanese R/V Mirai during a cruise in the fall of 2010 on the AFES-LETKF experimental ensemble reanalysis version 2 (ALERA2) data set. The reanalysis used radiosonde data over the ice-free region. Compared with observations, it captured Arctic cyclogenesis along the marginal ice zone, including a tropopause fold, very well. Without the observations, a 5 K cold bias in air temperature was found, suggesting that radiosondes over the Arctic Ocean are vital for reproducing the change in tropopause variability.
Technology Partners: MimirTech
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/radiosondes-over-ice-free-arctic-ocean-2010
[2] http://admin.indiaenvironmentportal.org.in/category/author/jun-inoue
[3] http://admin.indiaenvironmentportal.org.in/category/author/takeshi-enomoto
[4] http://admin.indiaenvironmentportal.org.in/category/author/masatake-e-hori
[5] http://admin.indiaenvironmentportal.org.in/category/journal/geophysical-research-letters
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/arctic-ocean
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/atmosphere
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/atmosphere-science
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global-warming
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/weather-predictions
