Temporal Upscaling of MODIS 1-km Instantaneous Land Surface Temperature to Monthly Mean Value: Method Evaluation and Product Generation
文献类型：期刊论文
| 作者 | Liu, Xiangyang; Li, Zhao-Liang; Li, Jia-Hao; Leng, Pei; Liu, Meng; Gao, Maofang4 |
| 刊名 | IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
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| 出版日期 | 2023-05-01 |
| 卷号 | 61页码:5001214 |
| 关键词 | Land surface temperature Satellites Temperature measurement MODIS Temperature distribution Atmospheric modeling Spatial resolution Land surface temperature (LST) Moderate Resolution Imaging Spectroradiometer (MODIS) monthly mean temperature temporal upscaling |
| DOI | 10.1109/TGRS.2023.3247428 |
| 文献子类 | Article |
| 英文摘要 | The monthly mean land surface temperature (MMLST) reflects more stable intra- and interannual temperature variations, and therefore, it has a wider range of applications than instantaneous land surface temperature (LST). This study aimed to generate a high-resolution global MMLST product by temporally upscaling the Moderate Resolution Imaging Spectroradiometer (MODIS) 1-km instantaneous LST. First, six current methods were comprehensively evaluated using cross-validation technology. These six methods are the cross combinations of two temporal aggregation schemes: the average by observations (ABO) and average by days (ABD), and three conversion models: the diurnal temperature cycle model (DTC), the simple average of two instantaneous LSTs (TSA), and a weighted average model for multiple instantaneous LSTs (MWA). The analysis with measurements from 235 flux stations worldwide revealed that the choice of conversion model considerably affected the overall retrieval accuracy, whereas the influence of the aggregation scheme was minor. From the conversion model standpoint, MWA performed best, followed by DTC, and finally TSA; this order remained the same even if DTC and TSA were improved with mean bias correction. Notably, the errors of ABD(MWA) decreased as the number of daily mean LST (NOD) increased, whereas the errors of ABO(MWA) were not related to NOD. Accordingly, we deduced that the optimal strategy for estimating MMLST is using ABO(MWA) when NOD is < 20 and ABD(MWA) when NOD is >= 20. Subsequently, we adopted this combination method to process MODIS instantaneous LSTs and produced a global 1-km MMLST dataset for the years 2003-2020. The validation showed a satisfactory accuracy with a root mean square error (RMSE) of 1.6 K. The intercomparison with MMLSTs from geostationary (GEO) satellites (containing complete LST daily cycle) presented a good agreement (biases < 0.3 K and STDs < 2 K). Compared with atmospheric infrared sounder (AIRS) L3 monthly standard physical retrieval (AIRS3STM) product which had the same temporal span, the newly generated product exhibited a high consistency in reflecting temporal variations of global temperature. Most importantly, it had a prominently better ability to retrieve spatial details of temperature variations due to its higher resolution. Our new method and product show promising prospects for applications in global change studies, where accurate spatially resolved MMLST data are one of the fundamental geophysical variables required. |
| WOS关键词 | SPLIT-WINDOW ALGORITHM ; DIURNAL CYCLES ; IN-SITU ; MICROWAVE ; MODELS |
| WOS研究方向 | Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology |
| WOS记录号 | WOS:000955908400020 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/200970]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 作者单位 | 1.[Liu, Xiangyang 2.Li, Zhao-Liang 3.Leng, Pei 4.Liu, Meng 5.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Minist Agr, Key Lab Agr Remote Sensing, Beijing 100081, Peoples R China 6.[Li, Zhao-Liang 7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 8.Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xiangyang,Li, Zhao-Liang,Li, Jia-Hao,et al. Temporal Upscaling of MODIS 1-km Instantaneous Land Surface Temperature to Monthly Mean Value: Method Evaluation and Product Generation[J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,2023,61:5001214. |
| APA | Liu, Xiangyang,Li, Zhao-Liang,Li, Jia-Hao,Leng, Pei,Liu, Meng,&Gao, Maofang.(2023).Temporal Upscaling of MODIS 1-km Instantaneous Land Surface Temperature to Monthly Mean Value: Method Evaluation and Product Generation.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,61,5001214. |
| MLA | Liu, Xiangyang,et al."Temporal Upscaling of MODIS 1-km Instantaneous Land Surface Temperature to Monthly Mean Value: Method Evaluation and Product Generation".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 61(2023):5001214. |
入库方式： OAI收割
来源：地理科学与资源研究所
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