Daily mean air temperature estimation from MODIS land surface temperature products based on M5 model tree

作者：Emamifar Saeed; Rahimikhoob Ali^*; Noroozi Ali Akbar

来源：International Journal of Climatology, 2013, 33(15): 3174-3181.

DOI：10.1002/joc.3655

• air temperature
• M5 model tree
• MODIS-Terra sensor
• Iran

The use of satellite data to estimate air temperature (T-a) near the Earth%26apos;s surface has become an effective way for a large area with high spatial and temporal resolution. In this study, M5 model tree was used to estimate T-a in Khuzestan province (in the southwest of Iran) using satellite remotely sensed land surface temperature (T-s) data acquired by the MODerate Resolution Imaging Spectroradiometer (MODIS)-Terra sensor. The input variables for the M5 model tree were the daytime and nighttime MODISTs, extraterrestrial solar radiation and Julian day. A total of 365 images of MOD11A1T(s) product for the year 2007, covering the area of this study were collected from the Land Processes Distributed Active Archive Center (LP DAAC). The results of this study showed that mean daily T-a can be estimated with acceptable levels of the statistical indicators from MODIS data and from the two geographic parameters using the M5 model. Root mean square error and R-2 for the comparison between observed and estimated T-a for the tested data are 2.3 and 0.96 degrees C, respectively.

• 出版日期2013-12