التفاصيل البيبلوغرافية
| العنوان: |
A Strict Validation of MODIS Lake Surface Water Temperature on the Tibetan Plateau |
| المؤلفون: |
Lazhu, Kun Yang, Jun Qin, Juzhi Hou, Yanbin Lei, Junbo Wang, Anning Huang, Yingying Chen, Baohong Ding, Xin Li |
| المصدر: |
Remote Sensing; Volume 14; Issue 21; Pages: 5454 |
| بيانات النشر: |
Multidisciplinary Digital Publishing Institute |
| سنة النشر: |
2022 |
| المجموعة: |
MDPI Open Access Publishing |
| مصطلحات موضوعية: |
Tibetan Plateau, MODIS, lake surface water temperature, lake turnover |
| جغرافية الموضوع: |
agris |
| الوصف: |
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 °C at nighttime and <2 °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. |
| نوع الوثيقة: |
text |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| Relation: |
Atmospheric Remote Sensing; https://dx.doi.org/10.3390/rs14215454 |
| DOI: |
10.3390/rs14215454 |
| الاتاحة: |
https://doi.org/10.3390/rs14215454 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: |
edsbas.7C6C3407 |
| قاعدة البيانات: |
BASE |