期刊
REMOTE SENSING
卷 2, 期 1, 页码 333-351出版社
MDPI
DOI: 10.3390/rs1020333
关键词
complex terrain; map reconstruction; MODIS LST; time series; GIS; growing degree days; threshold maps; mountainous environments; meteorological station data
类别
资金
- Fondazione E. Mach
- EU [GOCE-2003-010284 EDEN]
Continuous monitoring of extreme environments, such as the European Alps, is hampered by the sparse and/or irregular distribution of meteorological stations, the difficulties in performing ground surveys and the complexity of interpolating existing station data. Remotely sensed Land Surface Temperature (LST) is therefore of major interest for a variety of environmental and ecological applications. But while MODIS LST data from the Terra and Aqua satellites are aimed at closing the gap between data demand and availability, clouds and other atmospheric disturbances often obscure parts or even the entirety of these satellite images. A novel algorithm is presented in this paper, which is able to reconstruct incomplete MODIS LST maps. All nine years of the available daily LST data (2000-2008) have been processed, allowing the original LST map resolution of 1,000 m to be improved to 200 m, which means the resulting LST maps can be applied at a regional level. Extracted time series and aggregated data are shown as examples and are compared to meteorological station time series as an indication of the quality obtained.
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