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New possibilities for geophysical parameter retrievals opened by GCOM-W1 AMSR2
- Source :
- IEEE journal of selected topics in applied earth observations and remote sensing (1939-1404) (Ieee), 2015, Vol. 8, N. 9 SI, P. 4248-4261
- Publication Year :
- 2014
- Publisher :
- IEEE, 2014.
-
Abstract
- A new approach to retrieve sea surface wind speed (SWS) in tropical cyclones (TCs) from the Advanced Microwave Scanning Radiometer 2 (AMSR2) data is presented. Analysis of all six AMSR2 C- and X-band channel measurements over TCs is shown to efficiently help to separate the rain contribution. Corrected measurements at 6.9 and 10.65 GHz are then used to retrieve the SWS. Spatial and temporal collocation of AMSR2 and tropical rain measurement mission (TRMM) microwave instrument (TMI) data is then further used to empirically relate TMI rain rate (RR) product to RR estimates from AMSR2 in hurricanes. SWS estimates are validated with measurements from the stepped frequency microwave radiometer (SFMR). As further tested, more than 100 North Atlantic and North Pacific TCs are analyzed for the 2012–2014 period. Despite few particular cases, most SWS fields are in a very good agreement with TC center data on maximum wind speeds, radii of storm, and hurricane winds. As also compared, very high consistency between AMSR2 and L-band SMOS wind speed estimates are obtained, especially for the super typhoon Haiyan, to prove the high potential of AMSR2 measurements in TCs.
- Subjects :
- satellite passive microwave
Atmospheric Science
Brightness
010504 meteorology & atmospheric sciences
Meteorology
0211 other engineering and technologies
Tropical cyclone scales
02 engineering and technology
Radiation
Collocation (remote sensing)
01 natural sciences
Wind speed
rain rate
Computers in Earth Sciences
021101 geological & geomatics engineering
0105 earth and related environmental sciences
Remote sensing
Radiometer
Pixel
Microwave radiometer
Storm
brightness temperature modeling
sea surface wind speed
Geography
13. Climate action
Brightness temperature
Typhoon
Environmental science
AMSR2
hurricanes
Satellite
Tropical cyclone
Microwave
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- 2014 13th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad)
- Accession number :
- edsair.doi.dedup.....f6167984e930c1b0dec5b71e3e00ef29