AI-generated Key Takeaways
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The MODIS MYD09GQ dataset provides daily global surface reflectance at 250m resolution for bands 1 and 2.
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This dataset is available from July 4, 2002, to October 14, 2025, and is provided by NASA LP DAAC at the USGS EROS Center.
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The data are corrected for atmospheric effects and include quality assurance information.
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The product is designed to be used with MYD09GA for additional quality and viewing geometry details.
- Dataset Availability
- 2002-07-04T00:00:00Z–2025-10-24T00:00:00Z
- Dataset Provider
- NASA LP DAAC at the USGS EROS Center
- Cadence
- 1 Day
- Tags
Description
The MODIS Surface Reflectance products provide 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. MYD09GQ version 6.1 provides bands 1 and 2 at a 250m resolution in a daily gridded L2G product in the Sinusoidal projection, including a QC and five observation layers. This product is meant to be used in conjunction with the MYD09GA where important quality and viewing geometry information is stored.
Documentation:
Bands
Pixel Size
250 meters
Bands
| Name | Min | Max | Scale | Pixel Size | Wavelength | Description | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
num_observations |
0 | 127 | meters | None | Number of observations per 250m pixel |
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sur_refl_b01 |
-100 | 16000 | 0.0001 | meters | 620-670nm | Surface reflectance band 1 |
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sur_refl_b02 |
-100 | 16000 | 0.0001 | meters | 841-876nm | Surface reflectance for band 2 |
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QC_250m |
meters | None | Surface reflectance quality assurance |
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obscov |
0 | 100 | 0.01 | meters | None | Observation coverage percent |
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iobs_res |
0 | 254 | meters | None | Observation number |
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orbit_pnt |
0 | 15 | meters | None | Orbit pointer |
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granule_pnt |
0 | 254 | meters | None | Granule pointer |
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Terms of Use
Terms of Use
MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.
Citations
Please visit LP DAAC 'Citing Our Data' page for information on citing LP DAAC datasets.
DOIs
Explore with Earth Engine
Code Editor (JavaScript)
var dataset = ee.ImageCollection('MODIS/061/MYD09GQ') .filter(ee.Filter.date('2018-01-01', '2018-05-01')); var falseColorVis = { min: -100.0, max: 8000.0, bands: ['sur_refl_b02', 'sur_refl_b02', 'sur_refl_b01'], }; Map.setCenter(6.746, 46.529, 2); Map.addLayer(dataset, falseColorVis, 'False Color');