Validation and intercomparison of HY-2A/MetOp-A/Oceansat-2 scatterometer wind products

Qing Wu; Ge Chen

doi:10.1007/s00343-015-4160-4

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Validation and intercomparison of HY-2A/MetOp-A/Oceansat-2 scatterometer wind products

OriginalPaper | Updated：2023-05-16

- Validation and intercomparison of HY-2A/MetOp-A/Oceansat-2 scatterometer wind products
- Validation and intercomparison of HY-2A/MetOp-A/Oceansat-2 scatterometer wind products
- 海洋湖沼学报（英文） 2015年33卷第5期页码：1181-1190
- Affiliations：
  
  1. Department of Marine Technology College of Information Science and Engineering Ocean University of China
  2. Qingdao Collaborative Innovation Center of Marine Science and Technology College of Information Science and Engineering Ocean University of China
- Author bio：
- Funds：
  
  Supported by the National Natural Science Foundation of China (Nos. U1406404, 41331172, 61361136001) and the National High Technology Research and Development Program of China (863 Program) (No. 2013AA09A505)
- DOI：10.1007/s00343-015-4160-4
  中图分类号：
- 网络首发：2015-01-30，
  
  纸质出版：2015
- Accepted：
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Validation and intercomparison of HY-2A/MetOp-A/Oceansat-2 scatterometer wind products[J]. 海洋湖沼学报（英文）, 2015,33(5):1181-1190.

Wu, Q., Chen, G. Validation and intercomparison of HY-2A/MetOp-A/Oceansat-2 scatterometer wind products., Chin. J. Ocean. Limnol. 33, 1181–1190 (2015). https://doi.org/10.1007/s00343-015-4160-4
Validation and intercomparison of HY-2A/MetOp-A/Oceansat-2 scatterometer wind products[J]. 海洋湖沼学报（英文）, 2015,33(5):1181-1190. DOI： 10.1007/s00343-015-4160-4.

Wu, Q., Chen, G. Validation and intercomparison of HY-2A/MetOp-A/Oceansat-2 scatterometer wind products., Chin. J. Ocean. Limnol. 33, 1181–1190 (2015). https://doi.org/10.1007/s00343-015-4160-4 DOI：

摘要

Abstract

Sea surface winds are of great significance in scientific research. In the last few years

three series of scatterometers were launched to measure these winds

including the Advanced Scatterometer (ASCAT) aboard Meteorological Operational Satellite A (MetOp-A) and MetOp-B

Oceansat-2 Scatterometer (OSCAT)

and HY-2A Scatterometer (HY-2A SCAT). Based on buoy wind data

validation and intercomparison of these scatterometers were performed. Scatterometer-derived wind and buoy wind data were collected only if the spatial difference was less than 0.1 degree and temporal difference less than 5 min. After discarding wind direction data outside five times the standard deviation

ASCAT wind products showed high accuracy in both wind speed and direction

with root-mean-square error (RMSE) 0.86 m/s and 17.97 degrees

respectively. HY-2A SCAT nearly meets the mission requirement

with RMSE for wind speed 1.23 m/s and 22.85 degrees for wind direction. OSCAT had poor performance when compared with the others. RMSE for wind speed was 1.54 m/s and 39.86 degrees for wind direction

which greatly exceeds the mission requirement of 20 degrees. In addition

the RMSE for wind direction shows a high-low pattern on buoy wind speed. However

a wind speed range from 14 to 15 m/s was found to be abnormal

and the reason remains unclear. There was no systematic dependency of both wind speed and direction residuals on buoy wind speed and cross-track location of the wind vector cells across the entire range. No seasonal variation was found for any scatterometer.

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references

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