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

Updated：2023-05-16

- Validation and intercomparison of HY-2A/MetOp-A/Oceansat-2 scatterometer wind products
- Journal of Oceanology and Limnology Vol. 33, Issue 5, Pages: 1181-1190(2015)
- 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：
- DOI：10.1007/s00343-015-4160-4
  CLC：
- Online First：30 January 2015，
  
  Published：2015
- Accepted：
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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：

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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Keywords

references

Bentamy A, Autret E, Queffeulou P, Quilfen, Y. 2000. Intercomparison of ERS-2 and QuikSCAT winds. In: Proceedings of IEEE International Geoscience and Remote Sensing Symposium (Volume 1). IEEE, Honolulu, HI. p.234–236.

Bentamy A, Croize-Fillon D, Perigaud C. 2008. Characterization of ASCAT measurements based on buoy and QuikSCAT wind vector observations. Ocean Science, 4 (4): 265–274.

Bourassa M A, Legler D M, O’Brien J J, Smith S R. 2003. Sea Winds validation with research vessels. Journal of Geophysical Research: Oceans, 108 (C2), http://dx.doi.org/10.1029/2001JC001028.

Chen G. 2004. An Intercomparison of TOPEX, NSCAT, and ECMWF wind speeds: illustrating and understanding systematic discrepancies. Monthly Weather Review, 132 (3): 780–792.

Ebuchi N, Graber H C, Caruso M J. (2002. Evaluation of wind vectors observed by QuikSCAT/SeaWinds using ocean buoy data. Journal of Atmospheric and Oceanic Technology, 19 (12): 2049–2062.

Mathew T, Chakraborty A, Sarkar A, Kumar R. 2012. Comparison of oceanic winds measured by space-borne scatterometers and altimeters. Remote Sensing Letters, 3 (8): 715–720.

Rani S I, Das Gupta M, Sharma P, Prasad V S. (2014. Intercomparison of Oceansat-2 and ASCAT winds with in situ buoy observations and short-term numerical forecasts. Atmosphere-Ocean, 52 (1): 92–102.

Singh R, Kumar P, Pal P K. 2012. Assimilation of Oceansat-2-scatterometer-derived surface winds in the weather research and forecasting model. IEEE Transactions on Geoscience and Remote Sensing, 50 (4): 1015–1021.

Stiles B W, Pollard B D, Dunbar R S. (2002. Direction interval retrieval with thresholded nudging: a method for improving the accuracy of QuikSCAT winds. IEEE Transactions on Geoscience and Remote Sensing, 40 (1): 79–89.

Sudha A K, Prasada Rao C V K. 2013. Comparison of Oceansat-2 scatterometer winds with buoy observations over the Indian Ocean and the Pacific Ocean. Remote Sensing Letters, 4 (2): 171–179.

Wang H, Zhu J H, Lin M S, Huang X Q, Zhao Y L, Chen C T, Zhang Y G, Peng H L. 2013. First six months quality assessment of HY-2A SCAT wind products using in situ measurements. Acta Oceanologica Sinica, 32 (11): 27–33.

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