*2.3. Emissivity Data*

A new land surface emissivity Earth Science Data Systems (ESDS) product has been developed in support of a NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) project [30,31] MODIS-ASTER Global Infrared Combined Emissivity product produced from the University Wisconsin Global Infrared Land Surface Emissivity (UWIREMIS) and the ASTER Global Emissivity (GED) Database are known as the Combined ASTER and MODIS Emissivity for Land (CAMEL) and represents a combination of MODIS baseline-fit emissivity database (MODBF). The

CAMEL ESDR is produced globally at 5-km resolution at mean monthly time-steps and for 13 bands from 3.6–14.3 micron and extended to 417 bands using a Principal Component (PC) regression approach. This product has been used in our retrievals of LST.
