MYD28C2 v061

MODIS/Aqua Water Reservoir 8-Day L3 Global

PI: Huilin Gao


The Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Water Reservoir 8-Day Level 3 (L3) Global (MYD28C2) Version 6.1 product provides current data for 151 man-made reservoirs and 13 regulated natural lakes for a total of 164 reservoirs.

The MYD28C2 Version 6.1 data product provides an 8-day time series of surface area, elevation, and water storage. Datasets are combined with pre-established Area-Elevation (A-E) curves and image classifications of near-infrared (NIR) reflectance from the surface reflectance product acquired by the Aqua satellite (MYD09Q1).

The MYD28C2 data product contains a single layer with information about the reservoir identifier, dam location (longitude and latitude), reservoir area, elevation, and storage capacity.

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Product Maturity

Validation at stage 1 has been achieved for the MODIS Water Reservoir product suite. Further details regarding MODIS land product validation for the MYD28 data products are available from the MODIS Land Team Validation site.

Collection and Granule


Characteristic Description
CollectionAqua MODIS
File Size~24 KB
Temporal ResolutionMulti-Day
Temporal Extent2002-07-04 to Present
Spatial ExtentGlobal
Coordinate SystemGeographic Latitude and Longitude
File FormatHDF
Geographic DimensionsGlobal


Characteristic Description
Number of Science Dataset (SDS) Layers1
Pixel SizeN/A

Layers / Variables

SDS Name Description Units Data Type Fill Value No Data Value Valid Range Scale Factor
Lakes 8-day aggregated global lake area, elevation, and storage N/A N/A -9999.0 N/A N/A N/A

A list of the 164 reservoir identifiers and related attributes are provided in Appendix A of the User Guide

Product Quality

Quality information is provided in Section 5 of the Algorithm Theoretical Basis Document (ATBD).

Known Issues

Water occurrence images generally show smaller surface area dynamics in high latitude regions, creating pixels with low occurrence values that have relatively large uncertainties. In addition, the quality of raw water area classification can be affected by lake ice coverage typically creating an overestimation of surface area in the enhancement algorithm. This issue will be addressed in a future release of the enhancement algorithm. For additional information about known issues, refer to Section 4 in the User Guide.

About the image

"Lake Mead Area - Approaching Las Vegas" by Udo S / / CC By-NCND2.0

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User Guide
Algorithm Theoretical Basis Document (ATBD)

Using the Data

Access Data


DOI: 10.5067/MODIS/MYD28C2.061