SCATSAT-1 HIGH WINDS GEOPHYSICAL MODEL FUNCTION AND ITS WINDS APPLICATION IN OPERATIONAL MARINE FORECASTING AND WARNING

被引：1

作者：

Soisuvarn, Seubson ^{[1
,2
]}

Jelenak, Zorana ^{[1
,2
]}

Chang, Paul S. ^{[1
]}

Park, Jeonghwan ^{[1
,3
]}

Zhu, Qi ^{[1
,3
]}

Sapp, Joe ^{[1
,3
]}

Said, Faozi ^{[1
,3
]}

机构：

[1] NOAA, NESDIS, Ctr Satellite Applicat & Res, College Pk, MD 20740 USA

[2] UCAR, Boulder, CO 80301 USA

[3] Global Sci & Technol Inc, Greenbelt, MD USA

来源：

IGARSS 2020 - 2020 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM | 2020年

关键词：

Scatterometer; High Winds; Geophysical Model Function;

D O I：

10.1109/IGARSS39084.2020.9324328

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

In this paper we develop high wind portion of a Geophysical Model Function (GMF) for Scatsat-1 scatterometer measurements. Starting with NSCAT4 GMF the high wind portion has been modifying by utilizing measurements obtained by IWRAP instrument on board of NOAA P3 aircraft within tropical and extratropical cyclones. The A(0) coefficient in NSCAT4 GMF was modeled so its slope is a linear function of a logarithm of wind speed and its first derivative of it equals to zero at saturation wind speed for particular incidence angle and measurements frequency as it was measured by IWRAP. The calibrated measured sigmaO's from Scatsat-1 shows good agreement with the new GMF named NSCAT4.H at the high winds. The respective wind retrievals are higher and much better aligned with ASCAT high winds while the global winds statistic performance of ScatSat-1 winds remained unchanged. The new ScatSat-1 wind products produced by NSCAT4.H GMF has been implemented in NOAA's operational marine forecasting and warning applications and examples are presented here.

引用

页码：5794 / 5797

页数：4

共 7 条

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