In Flight Validation of ASTER and MODIS Land Surface Temperature and Emissivity Products for Earth Science
Simon
J
Hook, NASA/JPL, simon.j.hook@jpl.nasa.gov
(Presenting)
Glynn
C
Hulley, NASA/JPL, glynn.c.hulley@jpl.nasa.gov
William
R
Johnson, NASA/JPL, william.r.johnson@jpl.nasa.gov
Robert
G
Radocinski, NASA/JPL, robert.g.radocinski@jpl.nasa.gov
Land surface temperature (LST) has been derived from remotely sensed thermal infrared (TIR) data (8-12 µm) for many years. The remotely sensed TIR data can be acquired from sensors on field, airborne or satellite platforms. The satellite sensors provide TIR data with different spatial, spectral and temporal characteristics which are used to produce LST with different spatial and temporal frequencies. Recent satellite sensors include the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), the Landsat Enhanced Thematic Mapper (ETM), the Moderate Resolution Imaging Spectroradiometer (MODIS) and the Atmospheric Infrared Sounder (AIRS). Sensors like ASTER and ETM provide LST with high spatial resolutions (< 100m) and low temporal frequencies (twice per month) whereas sensors like MODIS and AIRS provide LST at lower spatial resolutions (1-50 km) but higher temporal frequencies (multiple times per day). The measurements made by these sensors as well as the products derived from the sensor data need to be validated to ensure the derived LST meets certain accuracy and precision requirements and the LST from one instrument can be used with the LST from another instrument.
This study provides an assessment of the accuracy of the ASTER and MODIS LST and emissivity products generated over the last decade.
Presentation Type: Poster
Poster Session: Data Records and Systems
NASA TE Funded Awards Represented:
Hook, Simon
In-Flight Validation of ASTER, MODIS and VIIRS Mid and Thermal Infrared Data and Products for Earth Science