Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2009, Issue 6, Vol. 2, pp. 224-234
Latitudinal distribution of radio brightness temperature over water
area of Atlantic Ocean
Г.Р. Хайруллина
, Н.М. Астафьева
Институт космических исследований РАН, 117997 Москва, ул. Профсоюзная, 84/32
Latitudinal distribution of radiobrightness temperature over water area of Atlantic ocean is
studied on the basis of data of microwave remote sensing of the Earth within the program DMSP.
There are constructed the series of latitude-time diagrammes [1, 2] and curves of latitudinal
distribution annual and monthly average radiobrightness temperature (with use of global radio
thermal fields of the Earth from electronic collection GLOBAL-Field [3, 4],
http://www.iki.rssi.ru/asp). Interannual and interseason features at 1999-2007 are investigate on the
frequencies of 19,35 and 22,24 GHz containing the information on a troposphere moisture and water
stock. The fluctuations of latitudinal position and intensity of an annual maximum of an intratropical
zone of convergence (a maximum radiobrightness temperatures near equator) and position of a
snow-ice blanket (a minimum radiobrightness temperatures in high latitudes) are detected. The
combined analysis of statistics and tracks of tropical cyclones over Atlantic and the received curves
of latitudinal radiobrightness temperature distributions has shown the correlation between presence
of late tropical cyclones in extratropical stage (bringing a moisture in high latitudes), on the one
hand, and time of formation of a snow-ice blanket (associating with autumn-winter season), on the
another hand. Results show that tracks of tropical cyclones and formation of a northern snow-ice
blanket are under the influence of the western stream of a moderate latitudes.
Keywords: moisture of troposphere, remote sensing, radio thermal field of the Earth, the analysis of data, northern Atlantic
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