A Strict Validation of MODIS Lake Surface Water Temperature on the Tibetan Plateau
文献类型：期刊论文
| 作者 | Lazhu1,2; Yang, Kun2,3; Qin, Jun4; Hou, Juzhi2; Lei, Yanbin2; Wang, Junbo2; Huang, Anning5; Chen, Yingying2; Ding, Baohong2; Li, Xin2 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2022-11-01 |
| 卷号 | 14期号:21页码:14 |
| 关键词 | Tibetan Plateau MODIS lake surface water temperature lake turnover |
| DOI | 10.3390/rs14215454 |
| 通讯作者 | Yang, Kun(yangk@tsinghua.edu.cn) |
| 英文摘要 | Lake surface water temperature (LSWT) is a key parameter in understanding the variability of lake thermal conditions and evaporation. The MODIS-derived LSWT is widely used as a reference for lake model validations and process studies in data-scarce regions. In this study, the accuracy of the MODIS LSWT was examined on the Tibetan Plateau (TP). In-situ subsurface temperatures were collected at five large lakes. Although the observation period covers from summer to winter, only the observations during the lake turnover period (from October to freeze-up), when the lakes are well mixed, can be used as ground truth. The MODIS LSWT agrees well with the selected in-situ data for the five large lakes, with root mean square error (RMSE) < 1 degrees C at nighttime and <2 degrees C in the daytime, indicating a high accuracy of the MODIS LSWT data. Before the turnover period, the water is thermally stratified and the surface water is warmer than the subsurface water, and thus the in-situ subsurface water temperature data and the MODIS LSWT have different representativeness. In this case, if the observations are used as a validation basis, the MODIS errors could be much magnified. This in turn indicates the importance of period selection for the validation. |
| WOS关键词 | SKIN TEMPERATURE ; NAM CO ; BOUNDARY-LAYER ; ICE PHENOLOGY ; GREAT-LAKES ; PAIKU CO ; IMPACT ; BASIN ; HEAT ; FLUX |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research Program[2019QZKK0206] ; National Natural Science Foundation of China[41975125] ; Natural Science Foundation of Tibet Autonomous Region[XZ202201ZR0046G] |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000882089700001 |
| 出版者 | MDPI |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research Program ; National Natural Science Foundation of China ; Natural Science Foundation of Tibet Autonomous Region |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/187141]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yang, Kun |
| 作者单位 | 1.Tibet Univ, Coll Sci, Res Ctr Ecol, Lhasa 850011, Peoples R China 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China 3.Tsinghua Univ, Dept Earth Syst Sci, Minist Educ Key Lab Earth Syst Modeling, Beijing 100084, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 5.Nanjing Univ, Sch Atmospher Sci, CMA NJU Joint Lab Climate Predict Studies, Nanjing 210023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lazhu,Yang, Kun,Qin, Jun,et al. A Strict Validation of MODIS Lake Surface Water Temperature on the Tibetan Plateau[J]. REMOTE SENSING,2022,14(21):14. |
| APA | Lazhu.,Yang, Kun.,Qin, Jun.,Hou, Juzhi.,Lei, Yanbin.,...&Li, Xin.(2022).A Strict Validation of MODIS Lake Surface Water Temperature on the Tibetan Plateau.REMOTE SENSING,14(21),14. |
| MLA | Lazhu,et al."A Strict Validation of MODIS Lake Surface Water Temperature on the Tibetan Plateau".REMOTE SENSING 14.21(2022):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
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