2003 through 2021 monthly global emissivity climatology product at 0.05 degree resolution. The dataset represents mean emissivity values derived from combined ASTER and MODIS satellite data over 19 years. It was produced by NASA's MEaSUREs program and managed by LPCLOUD.
Use Cases
- Modeling land surface temperature by incorporating wavelength-specific CAMEL Emissivity values.
- Analyzing long-term snow cover trends using the MODIS-derived snow fraction column.
- Assessing data reliability for specific regions using the CAMEL quality flag and number of samples columns.
- Creating global maps of surface emissivity for climate models using latitude and longitude coordinates.
Strengths
- 19-year temporal coverage from 2003 to 2021 provides a long-term climatology baseline.
- Global spatial coverage at 0.05 degree (~5 kilometer) resolution.
- Data integrates measurements from two established satellite instruments, ASTER and MODIS.
Limitations
- Specific row count, column details, and sample size are unknown.
- Data is a monthly climatology mean, not raw daily or instantaneous observations.
- Product ends in 2021, lacking recent years for current climate analysis.
Provenance
- Source
- NASA MEaSUREs program, LPCLOUD.
- Collection Method
- Derived from combined Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and Moderate Resolution Imaging Spectroradiometer (MODIS) satellite measurements.
- Time Range
- 2003 through 2021.
- Freshness
- Data covers through 2021; product last updated date is 2021-12-31.
- Geography
- Global.