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Description

The MODIS/Aqua Surface Reflectance Daily L2G Global 250m SIN Grid Near Real Time (NRT) product is an estimate of the surface spectral reflectance as it would be measured at ground level in the absence of atmospheric scattering or absorption. Low-level data are corrected for atmospheric gases and aerosols, yielding a level-2 basis for several higher-order gridded level-2 (L2G) and level-3 products.MYD09GQ provides Bands 1 and 2 at a 250-meter resolution in a daily gridded L2G product in the Sinusoidal projection. Science Data Sets provided for this product include reflectance for Bands 1 and 2 a quality rating observation coverage and observation number. This product is meant to be used in conjunction with MYD09GA where important quality and viewing geometry information is stored.

Product Summary

Platforms
Aqua
Instruments
MODIS
Projects
Aqua ,
LANCE
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2021-02-07
Data Partner
Land, Atmosphere Near real-time Capability for EOS (LANCE) Moderate Resolution Imaging Spectroradiometer (MODIS) (NASA/GSFC/EOS/ESDIS/LANCE MODIS)
Concept ID
C2007650640-LANCEMODIS
Data State
ACTIVE
Number of Files/Granules
2174
Processing Level
2G
Published
Science Keywords
Reflectance

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

MODIS Science Team. (2021). MODIS/Aqua Surface Reflectance Daily L2G Global 250 m SIN Grid NRT [Dataset]. NASA LANCE MODIS at the MODAPS. https://doi.org/10.5067/MODIS/MYD09GQ.NRT.061 Date Accessed: 2026-09-15

File Naming Convention

ESDT.AYYYYDDD.CCC.NRT.hdf

ESDT Earth Science Data Type or Shortname
A Stands for Acquisition
YYYYDDD Data acquisition year and Day-of-year
CCC Version ID of the data collection
Format File format suffix, which in the above case represents HDF

Documents

GENERAL DOCUMENTATION

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