FN Archimer Export Format
PT J
TI Observation of Wind Direction Change on the Sea Surface Temperature Front Using High-Resolution Full Polarimetric SAR Data
BT 
AF KIM, Tae-Sung
   PARK, Kyung-Ae
   LI, Xiaofeng
   MOUCHE, Alexis
   CHAPRON, Bertrand
   LEE, Moonjin
AS 1:1;2:2;3:3;4:4;5:4;6:5;
FF 1:;2:;3:;4:PDG-ODE-LOPS-SIAM;5:PDG-ODE-LOPS-SIAM;6:;
C1 Seoul Natl Univ, Dept Earth Sci Educ, Seoul 08826, South Korea.
   Seoul Natl Univ, Dept Earth Sci Educ, Ctr Educ Res, Res Inst Oceanog, Seoul 08826, South Korea.
   NOAA, Natl Environm Satellite Data & Informat Serv, GST, College Pk, MD 20740 USA.
   IFREMER, CERSAT, F-29280 Plouzane, France.
   Korea Res Inst Ships & Ocean Engn, Maritime Safety Res Div, Daejon 34103, South Korea.
C2 UNIV SEOUL NATL, SOUTH KOREA
   UNIV SEOUL NATL, SOUTH KOREA
   NOAA, USA
   IFREMER, FRANCE
   KRISO, SOUTH KOREA
SI BREST
SE PDG-ODE-LOPS-SIAM
UM LOPS
IN WOS Ifremer jusqu'en 2018
   copubli-int-hors-europe
IF 2.777
TC 18
UR https://archimer.ifremer.fr/doc/00374/48485/48786.pdf
LA English
DT Article
DE ;Full-polarization synthetic aperture radar (SAR);sea surface temperature (SST) front;sea surface wind field;stability-effect;wind direction
AB In this study, we derive high-resolution wind speeds and directions from full-polarization synthetic aperture radar (SAR) data. Previous wind retrieval result from conventional single-polarization SAR data has a limitation to resolve small-scale structures in the surface wind because external wind direction data with coarser spatial resolution than those of SARs have been commonly used as an input. Using fully polarimetric SAR data, however, both wind speed and direction can be derived with high resolution from the image itself without any ancillary data. We derive wind field off the southern coast of Korea from the Radarsat-2 quad-polarization data and investigate the spatial variation. The retrieved wind field from the Radarsat-2 image presents a detailed structure including small-scale variations which is unobtainable from conventional wind observations. Comparison of the derived wind directions with in-situ buoy wind measurements shows a small difference of 8° which is regarded as sufficient to analyze small-scale wind vector changes. The retrieved wind field off the southern coast of Korea demonstrates the distinct patterns of direction changes. While blowing over the sea surface temperature (SST) frontal zone, the veering angles of wind vectors decrease and then are restored. The analysis of SAR-derived wind vectors with coinciding temperature distributions confirms that the variation in SAR-derived wind vectors on the SST fronts is mainly induced by the stability effect. This study also addresses the important role of precise wind direction retrieval on the accuracy of retrieved wind speed.
PY 2017
PD JUL
SO Ieee Journal Of Selected Topics In Applied Earth Observations And Remote Sensing
SN 1939-1404
PU Ieee-inst Electrical Electronics Engineers Inc
VL 10
IS 6
UT 000406419400017
BP 2599
EP 2607
DI 10.1109/JSTARS.2017.2660858
ID 48485
ER

EF