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Description

The NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Combined Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and Moderate Resolution Imaging Spectroradiometer (MODIS) Emissivity for Land (CAMEL) data suite has been expanded to include a monthly global covariances climatology product (CAM5K30COVCLIM). The product is provided at 0.25 degree (~25 kilometer) resolution. The CAMEL covariance product includes the mean and variance of the covariance matrixes created for each month from 2003 through 2021 (19 years) on a 0.25 x 0.25 degree grid of 416 spectral points from the V003 CAMEL Emissivity product (CAM5K30EM). Additional details regarding the methodology are available in the User Guide and Algorithm Theoretical Basis Document (ATBD).

Provided in the CAM5K30COVCLIM product are variables for the mean and variance of the emissivity, latitude, longitude, spectral frequencies, and number of observations.

Product Summary

Platforms
Aqua,
Terra
Instruments
ASTER,
MODIS
Spatial Extent
N: 90 S: -90 E: 180 W: -180
Spatial Resolution
25000 Meters x 25000 Meters
Geographic Region
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2003-01-01 to 2022-01-01
Temporal Resolution
1 Month
Data Partner
Land Processes Distributed Active Archive Center (LP DAAC)
Cooperative Institute for Meteorological Satellite Studies, Space Science and Engineering Center, University of Wisconsin, Madison (UWI-MAD/SSEC/CIMSS)
Concept ID
c3274450252-lpcloud
Data State
COMPLETE
Processing Level
3
Published
Updated

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Borbas, E., Hook, S., Hulley, G., Loveless, M., Knuteson, R., & Cawse-Nicholson, K. (2024). Combined ASTER and MODIS Emissivity database over Land (CAMEL) Covariances Climatology Monthly Global 0.25Deg V003 [Data set]. NASA Land Processes Distributed Active Archive Center. https://doi.org/10.5067/MEASURES/LSTE/CAM5K30COVCLIM.003 Date Accessed: 2025-07-11

Data Center Citation

Eva Borbas, Simon Hook, Glynn Hulley, Michelle Loveless, Robert Knuteson, Kerry Cawse-Nicholson. 2024. Combined ASTER and MODIS Emissivity database over Land (CAMEL) Covariances Climatology Monthly Global 0.25Deg V003. Sioux Falls, South Dakota, USA: NASA Land Processes Distributed Active Archive Center. https://doi.org/10.5067/MEaSUREs/LSTE/CAM5K30COVCLIM.003.

Documents

SCIENCE DATA PRODUCT SOFTWARE DOCUMENTATION This documentation contains the software code used to generate high spectral resolution emissivity.
SCIENCE DATA PRODUCT SOFTWARE DOCUMENTATION This documentation contains the software code used to generate high spectral resolution emissivity.
USER'S GUIDE The combined User Guide and Algorithm Theoretical Basis Document provides product information for the user in addition to descriptions of the physical and mathematical algorithms used in generating the data product.

Learning Resources

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