Evaluation and improvement of parameterization methods for estimating cloudy-sky downwelling surface longwave radiation from geostationary satellite data
文献类型：期刊论文
| 作者 | Jiang, Yun2,3; Tang, Bo-Hui1,2 |
| 刊名 | INTERNATIONAL JOURNAL OF DIGITAL EARTH
 |
| 出版日期 | 2024-12-31 |
| 卷号 | 17期号:1页码:2356111 |
| 关键词 | Surface downwelling longwave radiation parameterization methods cloudy sky geostationary satellite |
| DOI | 10.1080/17538947.2024.2356111 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Estimating downwelling surface longwave radiation (DSLR) under cloudy-sky conditions presents a significant challenge, the parameterization methods used to estimate cloudy-sky DSLR may yield disparate results for the same scenario. Hence, it is imperative to undertake a comparative and validation study of these methods to comprehend their applicability. This study compares and validates five parameterized schemes for estimating cloudy-sky DSLR using data from the Fengyun-4A (FY-4A) and Himawari-8 geostationary satellites. Additionally, an improved algorithm for cloudy-sky DSLR estimation is proposed, integrating the radiation effect of the entire cloud layer and a nonlinear parameterization algorithm. The verification results demonstrate that the nonlinear parameterization algorithm exhibits higher accuracy compared to those reliant on cloud-base temperature. Among these, the improved algorithm has high accuracy similar to the nonlinear algorithms in BSRN (Baseline Surface Radiation Network) and TPDC (National Tibetan Plateau Data Center) sites, its RMSE are 29.62 and 30.09 W/m2, respectively. Sensitivity analysis reveals that cloud type and cloud-base temperature exert a pronounced influence on DSLR estimation, particularly within parameterization algorithms based on cloud-base temperature, warranting thorough consideration. Furthermore, the influence of land cover type and surface elevation, especially in high-altitude regions with bare surfaces, should not be disregarded in DSLR estimation. |
| WOS关键词 | DOWNWARD RADIATION ; THERMAL-RADIATION ; WAVE-RADIATION ; ATMOSPHERIC RADIATION ; INTEGRATING MODIS ; CLEAR ; FORMULA ; FLUX |
| WOS研究方向 | Physical Geography ; Remote Sensing |
| WOS记录号 | WOS:001268792500001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/206029]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 通讯作者 | Tang, Bo-Hui |
| 作者单位 | 1.Kunming Univ Sci & Technol, Fac Land Resource Engn, Kunming, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Yun,Tang, Bo-Hui. Evaluation and improvement of parameterization methods for estimating cloudy-sky downwelling surface longwave radiation from geostationary satellite data[J]. INTERNATIONAL JOURNAL OF DIGITAL EARTH,2024,17(1):2356111. |
| APA | Jiang, Yun,&Tang, Bo-Hui.(2024).Evaluation and improvement of parameterization methods for estimating cloudy-sky downwelling surface longwave radiation from geostationary satellite data.INTERNATIONAL JOURNAL OF DIGITAL EARTH,17(1),2356111. |
| MLA | Jiang, Yun,et al."Evaluation and improvement of parameterization methods for estimating cloudy-sky downwelling surface longwave radiation from geostationary satellite data".INTERNATIONAL JOURNAL OF DIGITAL EARTH 17.1(2024):2356111. |
入库方式： OAI收割
来源：地理科学与资源研究所
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