Evaluation of Sea Surface Wind Products from Scatterometer Onboard the Chinese HY-2D Satellite
The Chinese new marine dynamic environment satellite HY-2D was launched on 19 May 2021, carrying a Ku-band scatterometer (named HSCAT-D). In this study, wind products observed by the HSCAT-D were validated by comparing with wind data from the U.S. National Data Buoy Center (NDBC) buoys and European...
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| Format: | Article |
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MDPI AG
2023-02-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/15/3/852 |
| _version_ | 1797623348792918016 |
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| author | Sheng Yang Lu Zhang Mingsen Lin Juhong Zou Bo Mu Hailong Peng |
| author_facet | Sheng Yang Lu Zhang Mingsen Lin Juhong Zou Bo Mu Hailong Peng |
| author_sort | Sheng Yang |
| collection | DOAJ |
| description | The Chinese new marine dynamic environment satellite HY-2D was launched on 19 May 2021, carrying a Ku-band scatterometer (named HSCAT-D). In this study, wind products observed by the HSCAT-D were validated by comparing with wind data from the U.S. National Data Buoy Center (NDBC) buoys and European Centre for Medium-Range Weather Forecasts (ECMWF) model. The statistical results show that the HSCAT-D winds have a good agreement with the buoys’ wind measurements: in comparison with buoy winds, the wind speed standard deviation (STD) and root-mean-squared errors (RMSE) of direction were 0.78 m/s and 14.10°, respectively. Other scatterometers’ wind data are also employed for comparisons, including the HY-2B scatterometer (HSCAT-B), HY-2C scatterometer (HSCAT-C), and MetOp-B scatterometer (ASCAT-B) winds. The statistical results indicate that errors for HSCAT-D winds are smaller than HSCAT-C but a little bit larger than HSCAT-B. The spectral analysis shows that the HSCAT-D wind products contain less small-scale information than ASCAT-B. Moreover, the Extended Triple Collocation (ETC) results show that the HSCAT-D wind product is of good quality and well-calibrated. We believe that the HSCAT-D wind products will be helpful for the scientific community, as shown by the encouraging validation results. |
| first_indexed | 2024-03-11T09:27:35Z |
| format | Article |
| id | doaj.art-aafab563016c4650b0f84656dc039c48 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-11T09:27:35Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-aafab563016c4650b0f84656dc039c482023-11-16T17:55:11ZengMDPI AGRemote Sensing2072-42922023-02-0115385210.3390/rs15030852Evaluation of Sea Surface Wind Products from Scatterometer Onboard the Chinese HY-2D SatelliteSheng Yang0Lu Zhang1Mingsen Lin2Juhong Zou3Bo Mu4Hailong Peng5National Satellite Ocean Application Service, Beijing 100081, ChinaNational Marine Environmental Forecasting Center, Beijing 100081, ChinaNational Satellite Ocean Application Service, Beijing 100081, ChinaNational Satellite Ocean Application Service, Beijing 100081, ChinaNational Satellite Ocean Application Service, Beijing 100081, ChinaNational Satellite Ocean Application Service, Beijing 100081, ChinaThe Chinese new marine dynamic environment satellite HY-2D was launched on 19 May 2021, carrying a Ku-band scatterometer (named HSCAT-D). In this study, wind products observed by the HSCAT-D were validated by comparing with wind data from the U.S. National Data Buoy Center (NDBC) buoys and European Centre for Medium-Range Weather Forecasts (ECMWF) model. The statistical results show that the HSCAT-D winds have a good agreement with the buoys’ wind measurements: in comparison with buoy winds, the wind speed standard deviation (STD) and root-mean-squared errors (RMSE) of direction were 0.78 m/s and 14.10°, respectively. Other scatterometers’ wind data are also employed for comparisons, including the HY-2B scatterometer (HSCAT-B), HY-2C scatterometer (HSCAT-C), and MetOp-B scatterometer (ASCAT-B) winds. The statistical results indicate that errors for HSCAT-D winds are smaller than HSCAT-C but a little bit larger than HSCAT-B. The spectral analysis shows that the HSCAT-D wind products contain less small-scale information than ASCAT-B. Moreover, the Extended Triple Collocation (ETC) results show that the HSCAT-D wind product is of good quality and well-calibrated. We believe that the HSCAT-D wind products will be helpful for the scientific community, as shown by the encouraging validation results.https://www.mdpi.com/2072-4292/15/3/852ocean surface windscatterometervalidation |
| spellingShingle | Sheng Yang Lu Zhang Mingsen Lin Juhong Zou Bo Mu Hailong Peng Evaluation of Sea Surface Wind Products from Scatterometer Onboard the Chinese HY-2D Satellite Remote Sensing ocean surface wind scatterometer validation |
| title | Evaluation of Sea Surface Wind Products from Scatterometer Onboard the Chinese HY-2D Satellite |
| title_full | Evaluation of Sea Surface Wind Products from Scatterometer Onboard the Chinese HY-2D Satellite |
| title_fullStr | Evaluation of Sea Surface Wind Products from Scatterometer Onboard the Chinese HY-2D Satellite |
| title_full_unstemmed | Evaluation of Sea Surface Wind Products from Scatterometer Onboard the Chinese HY-2D Satellite |
| title_short | Evaluation of Sea Surface Wind Products from Scatterometer Onboard the Chinese HY-2D Satellite |
| title_sort | evaluation of sea surface wind products from scatterometer onboard the chinese hy 2d satellite |
| topic | ocean surface wind scatterometer validation |
| url | https://www.mdpi.com/2072-4292/15/3/852 |
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