Title :
Microwave characteristics of organized mesoscale convection over the ocean
Author :
Mitnik, Leonid M. ; Mitnik, Maia L.
Author_Institution :
V. I. Il´´ichev Pacific Oceanological, Inst. FEB RAS, Vladivostok
Abstract :
Fields of AMSR-E brightness temperatures TBs of organized mesoscale convection over the ocean are analyzed together with MODIS visible images, Envisat ASAR images and QuikSCAT-derived wind fields. Cloud liquid water content Q and water vapor content V are estimated for the areas with mesoscale convection and for individual large cells. Models describing distribution of wind speed and direction, water vapor and cloud water in convective rolls, open and closed cells were suggested to simulate TBs and imprints of convective cells on SAR images. Computed passive microwave and radar pattern are in a good agreement with satellite measurements and can be used for retrieval algorithm advancement, estimation of effects of spatial smoothing, etc.
Keywords :
atmospheric humidity; atmospheric techniques; clouds; convection; remote sensing by radar; wind; AMSR-E brightness temperatures; Envisat ASAR images; MODIS visible images; QuikSCAT derived wind fields; closed cells; cloud direction distribution; cloud liquid water content; cloud water vapor content; convective rolls; microwave characteristics; open cells; organized mesoscale convection; wind speed distribution; Brightness temperature; Clouds; Computational modeling; Image analysis; MODIS; Oceans; Passive radar; Radar imaging; Radar measurements; Wind speed; Remote sensing; atmospheric measurements; microwave measurements; synthetic aperture radar;
Conference_Titel :
Microwave Radiometry and Remote Sensing of the Environment, 2008. MICRORAD 2008
Conference_Location :
Firenze
Print_ISBN :
978-1-4244-1986-9
Electronic_ISBN :
978-1-4244-1987-6
DOI :
10.1109/MICRAD.2008.4579456