IMPROVEMENT OF CYGNSS LEVEL 1 CALIBRATION USING MODELING AND MEASUREMENTS OF OCEAN SURFACE MEAN SQUARE SLOPE

被引：4

作者：

Wang, Tianlin ^{[1
]}

Zavorotny, Valery U. ^{[2
]}

Johnson, Joel ^{[3
]}

Yi, Yuchan ^{[3
]}

Ruf, Christopher ^{[1
]}

Gleason, Scott ^{[4
]}

McKaguel, Darren ^{[1
]}

Hwang, Paul ^{[5
]}

Rogers, Erick ^{[6
]}

Chen, Shuyi ^{[7
]}

Pan, Yulin ^{[1
]}

Bakker, Thomas ^{[1
]}

机构：

[1] Univ Michigan, Ann Arbor, MI 48109 USA

[2] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA

[3] Ohio State Univ, Columbus, OH 43210 USA

[4] Univ Corp Atmospher Res, Boulder, CO USA

[5] Naval Res Lab, Washington, DC 20375 USA

[6] Naval Res Lab, Stennis Space Ctr, MS USA

[7] Univ Washington, Seattle, WA 98195 USA

来源：

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

关键词：

Calibration; CYGNSS; mean square slope (mss); validation; WaveWatch III; wind speed; SEA;

D O I：

10.1109/IGARSS39084.2020.9323262

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

The Cyclone Global Navigation Satellite System (CYGNSS) measures GPS signals specularly reflected from Earth's surface to remotely sense ocean surface roughness and wind speed. The mean square slope (mss) is a key physical parameter that relates the ocean surface properties (wave spectra) with the CYGNSS measurement of the normalized bistatic radar cross section (NBRCS). An approach to model the mss for validation with CYGNSS mss data was developed by adding the contribution of a high frequency tail to the IFREMER WAVEWATCH III (WW3) mss. It is demonstrated that the ratio of CYGNSS mss and the modified WW3 mss can be used to diagnose potential calibration errors that exist in the Level 1 calibration algorithm. This approach can help to improve CYGNSS data quality, including the Level 1 NBRCS and Level 2 ocean surface wind speed and roughness.

引用

页码：5909 / 5912

页数：4

共 3 条

[1] A REAL-TIME EIRP LEVEL 1 CALIBRATION ALGORITHM FOR THE CYGNSS MISSION USING THE ZENITH MEASUREMENTS
Wang, Tianlin
Ruf, Christopher
Gleason, Scott
Block, Bruce
McKague, Darren
O'Brien, Andrew
2019 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2019), 2019, : 8725 - 8728
[2] The CYGNSS Level 1 Calibration Algorithm and Error Analysis Based on On-Orbit Measurements
Gleason, Scott
Ruf, Christopher S.
O'Brien, Andrew J.
McKague, Darren S.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, 2019, 12 (01) : 37 - 49
[3] Measurements of Total Sea Surface Mean Square Slope Field Based on SWIM Data
Li, Xiuzhong
Karaev, Vladimir
Panfilova, Mariya
Liu, Baochang
Wang, Zhixiong
Xu, Ying
Liu, Jianqiang
He, Yijun
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2022, 60

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