Daily air temperature estimation on glacier surfaces in the Tibetan Plateau using MODIS LST data
The MODerate resolution Imaging Spectroradiometer (MODIS) land surface temperature (LST) data have been widely used for air temperature estimation in mountainous regions where station observations are sparse. However, the performance of MODIS LST in high-elevation glacierized areas remains unclear....
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2018-02-01
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| Series: | Journal of Glaciology |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S0022143018000060/type/journal_article |
| _version_ | 1811155850863050752 |
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| author | HONGBO ZHANG FAN ZHANG GUOQING ZHANG YAOMING MA KUN YANG MING YE |
| author_facet | HONGBO ZHANG FAN ZHANG GUOQING ZHANG YAOMING MA KUN YANG MING YE |
| author_sort | HONGBO ZHANG |
| collection | DOAJ |
| description | The MODerate resolution Imaging Spectroradiometer (MODIS) land surface temperature (LST) data have been widely used for air temperature estimation in mountainous regions where station observations are sparse. However, the performance of MODIS LST in high-elevation glacierized areas remains unclear. This study investigates air temperature estimation in glacierized areas based on ground observations at four glaciers across the Tibetan Plateau. Before being used to estimate the air temperature, MODIS LST data are evaluated at two of the glaciers, which indicates that MODIS night-time LST is more reliable than MODIS daytime LST data. Then, linear models based on each of the individual MODIS LST products from two platforms (Terra and Aqua) and two overpasses (night-time and daytime) are built to estimate daily mean, minimum and maximum air temperatures in glacierized areas. Regional glacier surface (RGS) models (mean /-mean-square differences: 3.3, 3.0 and 4.8°C for daily mean, minimum and maximum air temperatures, respectively) show higher accuracy than local non-glacier surface models (mean root-mean-square differences: 4.2, 4.7 and 5.7°C). In addition, the RGS models based on MODIS night-time LST perform better to estimate daily mean, minimum and maximum air temperatures than using temperature lapse rate derived from local stations. |
| first_indexed | 2024-04-10T04:40:34Z |
| format | Article |
| id | doaj.art-3e0a024b5de14e79933a72a16ccc6503 |
| institution | Directory Open Access Journal |
| issn | 0022-1430 1727-5652 |
| language | English |
| last_indexed | 2024-04-10T04:40:34Z |
| publishDate | 2018-02-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Journal of Glaciology |
| spelling | doaj.art-3e0a024b5de14e79933a72a16ccc65032023-03-09T12:40:29ZengCambridge University PressJournal of Glaciology0022-14301727-56522018-02-016413214710.1017/jog.2018.6Daily air temperature estimation on glacier surfaces in the Tibetan Plateau using MODIS LST dataHONGBO ZHANG0FAN ZHANG1GUOQING ZHANG2YAOMING MA3KUN YANG4MING YE5Key Laboratory of Tibetan Environmental Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, ChinaKey Laboratory of Tibetan Environmental Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing 100101, China University of Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Tibetan Environmental Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing 100101, ChinaKey Laboratory of Tibetan Environmental Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing 100101, China University of Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Tibetan Environmental Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing 100101, China University of Chinese Academy of Sciences, Beijing, ChinaDepartment of Scientific Computing, Florida State University, Tallahassee, FL, USAThe MODerate resolution Imaging Spectroradiometer (MODIS) land surface temperature (LST) data have been widely used for air temperature estimation in mountainous regions where station observations are sparse. However, the performance of MODIS LST in high-elevation glacierized areas remains unclear. This study investigates air temperature estimation in glacierized areas based on ground observations at four glaciers across the Tibetan Plateau. Before being used to estimate the air temperature, MODIS LST data are evaluated at two of the glaciers, which indicates that MODIS night-time LST is more reliable than MODIS daytime LST data. Then, linear models based on each of the individual MODIS LST products from two platforms (Terra and Aqua) and two overpasses (night-time and daytime) are built to estimate daily mean, minimum and maximum air temperatures in glacierized areas. Regional glacier surface (RGS) models (mean /-mean-square differences: 3.3, 3.0 and 4.8°C for daily mean, minimum and maximum air temperatures, respectively) show higher accuracy than local non-glacier surface models (mean root-mean-square differences: 4.2, 4.7 and 5.7°C). In addition, the RGS models based on MODIS night-time LST perform better to estimate daily mean, minimum and maximum air temperatures than using temperature lapse rate derived from local stations.https://www.cambridge.org/core/product/identifier/S0022143018000060/type/journal_articleglacier meteorologyice temperatureremote sensing |
| spellingShingle | HONGBO ZHANG FAN ZHANG GUOQING ZHANG YAOMING MA KUN YANG MING YE Daily air temperature estimation on glacier surfaces in the Tibetan Plateau using MODIS LST data Journal of Glaciology glacier meteorology ice temperature remote sensing |
| title | Daily air temperature estimation on glacier surfaces in the Tibetan Plateau using MODIS LST data |
| title_full | Daily air temperature estimation on glacier surfaces in the Tibetan Plateau using MODIS LST data |
| title_fullStr | Daily air temperature estimation on glacier surfaces in the Tibetan Plateau using MODIS LST data |
| title_full_unstemmed | Daily air temperature estimation on glacier surfaces in the Tibetan Plateau using MODIS LST data |
| title_short | Daily air temperature estimation on glacier surfaces in the Tibetan Plateau using MODIS LST data |
| title_sort | daily air temperature estimation on glacier surfaces in the tibetan plateau using modis lst data |
| topic | glacier meteorology ice temperature remote sensing |
| url | https://www.cambridge.org/core/product/identifier/S0022143018000060/type/journal_article |
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