A Multi-Scale observation experiment on land surface temperature over heterogeneous surfaces in an extremely arid region and first results

Although many challenges exist, validation of the satellite land surface temperature (LST) product over heterogeneous surface can provide new and in-depth understandings of the product. Lessons learned from the validation are important to improve the satellite LST product. In order to better understand the relationship between LSTs measured through different approaches and instruments and test the possibility to upscale the ground measured LST over heterogeneous surface, a MUlti-Scale Observation Experiment on land Surface temperature (MUSOES) was designed and conducted in an extremely arid region in Northwest China. The experiment was concentrated at two typical sites (i.e. HHL - sparsely forest, and SDQ - open shrubland). It began from July 2014 and have run normally for two years. First results of this experiment have been presented here. MUSOES provides a basis to examine the upscaling of the ground measured LST to the LST at the satellite pixel scale over the heterogeneous surface.

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