Difference and parameter analysis of LST inversion based on Landsat data
The correct use of the product is possible only when the land surface temperature(LST)data is calcu-lated by an accurate and reliable inversion algorithm.In this paper,we compare the inversion results of five com-monly used LST inversion algorithms based on Landsat-8,Landsat-9 data,and weather station data.The inver-sion results and parameter sensitivity analysis of different algorithms are tested.The results show that the inver-sion results of the Radiative Transfer Equation(RTE)and Single Channel(SC)algorithms calculated based on land surface emissivity(LSE)are in good agreement with the ground measured.The inversion results of the SC algorithm based on the atmospheric water vapor inversion and the Split Window(SW)algorithm based on the at-mospheric water vapor inversion are higher than the measured temperature.The inversion accuracy of the Mono Window(MW)algorithm based on average temperature parameters is not ideal.In addition,the consistency of the inversion temperature of the two data on different ground objects is compared.Our study can provide a refer-ence for land surface temperature inversion based on Landsat-9 data.
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