Assessment of ERA5 Near-Surface Air Temperatures Over Global Oceans by Combining MODIS Sea Surface Temperature Products and In-Situ Observations
文献类型：期刊论文
| 作者 | He, Min1,2; Qin, Jun1; Lu, Ning1; Yao, Ling1 |
| 刊名 | IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
 |
| 出版日期 | 2023 |
| 卷号 | 16页码:8442-8455 |
| ISSN号 | 1939-1404 |
| 关键词 | European Centre for Medium-Range Weather Forecasts Reanalysis 5 (ERA5) machine learning marine air temperature (MAT) sea surface temperature (SST) warming trend |
| DOI | 10.1109/JSTARS.2023.3312810 |
| 通讯作者 | Qin, Jun(qinjun@igsnrr.ac.cn) ; Lu, Ning(lvn@lreis.ac.cn) |
| 英文摘要 | Centre for Medium-Range Weather Forecasts Reanalysis 5 (ERA5) is a state-of-the-art reanalysis dataset and has been widely used in climate change analysis and land surface process simulations. However, few assessments have been conducted across the entire ocean for this dataset till now. The motivation of this study is to utilize the in-situ observations and remotely sensed sea surface temperature (SST) products to propose a new approach to evaluate the precision of ERA5 air temperature over the whole ocean. First, a stacked multilayer perceptron regressor model was employed to map global marine air temperature (MAT) by incorporating in-situ records into moderate-resolution imaging spectroradiometer (MODIS) SST products. Second, a monthly MAT dataset with a spatial resolution of 0.05 degrees x 0.05 degrees was developed and validated for the assessment of ERA5 air temperature particularly in the regions where only satellite observations are available. It demonstrates that the quality of estimated MAT (RMSE = 1.62 degrees C, Bias = 0.03 degrees C) is evidently high in 80.3% of the observation stations, which is much better than that of averaged SST (RMSE = 2.29 degrees C, Bias = 1.14 degrees C). Thus, the estimated MAT is credible enough to be employed to assess ERA5 air temperature both at the grid and regional scale. Finally, the ERA5 air temperature was compared and validated with the estimated MAT temporally and spatially. The further study suggested that estimated MAT and ERA5 air temperature basically maintain consistency in expressing persistent warming, particularly in the western Pacific, western Atlantic, and northern Indian Ocean. In addition, the trend of ERA5 air temperature during 50 degrees S-50 degrees N reaches 0.016 +/- 0.003 degrees C/yr, which is similar to that of estimated MAT (0.017 +/- 0.002 degrees C/yr) during 2003-2021. |
| WOS关键词 | CLIMATE MODELS ; AMSR-E ; TRENDS ; ICOADS ; SST |
| 资助项目 | Third Xinjiang Scientific Expedition Program[2021xjkk0303] ; Innovation Project of LREIS[KPI009] |
| WOS研究方向 | Engineering ; Physical Geography ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| WOS记录号 | WOS:001076878900001 |
| 资助机构 | Third Xinjiang Scientific Expedition Program ; Innovation Project of LREIS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/198496]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Qin, Jun; Lu, Ning |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Min,Qin, Jun,Lu, Ning,et al. Assessment of ERA5 Near-Surface Air Temperatures Over Global Oceans by Combining MODIS Sea Surface Temperature Products and In-Situ Observations[J]. IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,2023,16:8442-8455. |
| APA | He, Min,Qin, Jun,Lu, Ning,&Yao, Ling.(2023).Assessment of ERA5 Near-Surface Air Temperatures Over Global Oceans by Combining MODIS Sea Surface Temperature Products and In-Situ Observations.IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,16,8442-8455. |
| MLA | He, Min,et al."Assessment of ERA5 Near-Surface Air Temperatures Over Global Oceans by Combining MODIS Sea Surface Temperature Products and In-Situ Observations".IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING 16(2023):8442-8455. |
入库方式： OAI收割
来源：地理科学与资源研究所
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