MODIS/Aqua Surface Reflectance 8-Day L3 Global 250m SIN Grid V006

Metadata Updated: December 4, 2020

The MYD09Q1 Version 6 product provides an estimate of the surface spectral reflectance of Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Bands 1 and 2, corrected for atmospheric conditions such as gasses, aerosols, and Rayleigh scattering. Provided along with the 250 meter (m) surface reflectance bands are two quality layers. For each pixel, a value is selected from all the acquisitions within the 8-day composite period. The criteria for the pixel choice include cloud and solar zenith. When several acquisitions meet the criteria the pixel with the minimum channel 3 (blue) value is used.

Improvements/Changes from Previous Versions

  • Improvements to the aerosol retrieval and correction algorithm along with new aerosol retrieval look-up tables.
  • Refinements to the internal snow, cloud, and cloud shadow detection algorithms. Uses Bidirectional Reflectance Distribution Function (BRDF) database to better constrain the different threshold used.
  • Processes ocean bands to create a new Surface Reflectance Ocean product and provides Quality Assurance (QA) datasets for these bands.
  • Improved discrimination of salt pans from cloud and snow, along with the inclusion of a salt pan flag in the QA band.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date November 12, 2020
Metadata Updated Date December 4, 2020

Metadata Source

Harvested from NASA Data.json

Graphic Preview

Browse image for Earthdata Search

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date December 4, 2020
Publisher LP DAAC
Unique Identifier Unknown
Maintainer
Identifier C193529461-LPDAAC_ECS
Data First Published 2010-08-31
Language en-US
Data Last Modified 2015-09-30
Category Aqua, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Archived by National Aeronautics and Space Administration, U.S. Government, LP DAAC. https://doi.org/10.5067/MODIS/MYD09Q1.006.
Graphic Preview Description Browse image for Earthdata Search
Graphic Preview File https://e4ftl01.cr.usgs.gov//WORKING/BRWS/Browse.001/2019.06.27/BROWSE.MYD09A1.A2019169.h12v11.006.2019178034138.1.jpg?_ga=2.175015138.116070394.1561987039-1109527761.1561753117
Homepage URL https://doi.org/10.5067/MODIS/MYD09Q1.006
Metadata Type geospatial
Program Code 026:001
Source Datajson Identifier True
Source Hash e78cea51f253d2e96b2551c9bee91d3c7fd00938
Source Schema Version 1.1
Spatial -180.0 -90.0 180.0 90.0
Temporal 2002-07-04T00:00:00Z/2020-11-30T00:00:00Z

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