MCD19A1.061: Land Surface BRF Daily L2G Global 500m and 1km

MODIS/061/MCD19A1_GRANULES
Dataset Availability
2000-12-21T00:00:00Z–2025-04-01T23:55:00Z
Dataset Provider
Earth Engine Snippet
ee.ImageCollection("MODIS/061/MCD19A1_GRANULES")
Cadence
1 Day
Tags
aerosol aod aqua daily global maiac modis nasa satellite-imagery terra usgs
DescriptionBandsTerms of UseCitationsDOIs

The MCD19A1 Version 6.1 data product is a Moderate Resolution Imaging Spectroradiometer (MODIS) Terra and Aqua combined Land Surface Bidirectional Reflectance Factor (BRF) gridded Level 2 product produced daily at 500 meter and 1 kilometer resolution. For more information see the MAIAC user guide.

Pixel Size
1000 meters

Bands

Name Min Max Scale Description
Sur_refl1 -100 16000 0.0001

Surface reflectance at 500m for band 1.
Sur_refl2 -100 16000 0.0001

Surface reflectance at 500m for band 2.
Sur_refl3 -100 16000 0.0001

Surface reflectance at 500m for band 3.
Sur_refl4 -100 16000 0.0001

Surface reflectance at 500m for band 4.
Sur_refl5 -100 16000 0.0001

Surface reflectance at 500m for band 5.
Sur_refl6 -100 16000 0.0001

Surface reflectance at 500m for band 6.
Sur_refl7 -100 16000 0.0001

Surface reflectance at 500m for band 7.
Sur_refl8 -100 16000 0.0001

Surface reflectance at 1km for band 8.
Sur_refl9 -100 16000 0.0001

Surface reflectance at 1km for band 9.
Sur_refl10 -100 16000 0.0001

Surface reflectance at 1km for band 10.
Sur_refl11 -100 16000 0.0001

Surface reflectance at 1km for band 11.
Sur_refl12 -100 16000 0.0001

Surface reflectance at 1km for band 12.
Sigma_BRFn1 -100 16000 0.0001

BRFn uncertainty over time at 1km, for band 1
Sigma_BRFn2 -100 16000 0.0001

BRFn uncertainty over time at 1km, for band 2
Status_QA

QA bits
  • Bits 0-2: Cloud mask
    • 0: Undefined
    • 1: Clear
    • 2: Possibly cloudy (detected by AOD filter)
    • 3: Cloudy (detected by cloud mask algorithm)
    • 5: Cloud shadow
    • 6: Hot spot of fire
    • 7: Water sediments
  • Bits 3-4: Land water snow/ice mask
    • 0: Land
    • 1: Water
    • 2: Snow
    • 3: Ice
  • Bits 5-7: Adjacency mask
    • 0: Normal condition/Clear
    • 1: Adjacent to clouds
    • 2: Surrounded by more than 4 cloudy pixels
    • 3: Adjacent to a single cloudy pixel
    • 4: Adjacent to snow
    • 5: Snow was previously detected in this pixel
  • Bit 8: AOD level
    • 0: AOD is low (<=0.6)
    • 1: AOD is high (> 0.6) or undefined
  • Bits 9-10: AOD Type
    • 0: Background aerosol
    • 1: Smoke
    • 2: Dust
  • Bit 11: BRF retrieved over snow assuming AOD = 0.05
    • 0: no
    • 1: yes
  • Bit 12: Altitude >4.2km (land)/3.5km (water), BRF is retrieved using climatology AOD =0.02
    • 0: no
    • 1: yes
  • Bits 13-15: Surface Change Mask
    • 0: No change
    • 1: Regular change Green up (Relative change in Red and NIR nadir-normalized BRF is more than 5% but less than 15%).
    • 2: Big change Green up (Relative change in Red and NIR nadir-normalized BRF is more than 15%).
    • 3: Regular change Senescence
    • 4: Big change Senescence
cosSZA 0 10000 0.0001

Cosine of Solar zenith angle (5 km resulution)
cosVZA 0 10000 0.0001

Cosine view zenith angle (5 km resolution)
RelAZ -18000 18000 0.01

Relative azimuth angle (5 km resolution)
Scattering_Angle -18000 18000 0.01

Scattering angle (5 km resolution)
SAZ -18000 18000 0.01

Solar Azimuth Angle (5 km resolution)
VAZ -18000 18000 0.01

View Azimuth Angle (5 km resolution)
Glint_Angle -18000 18000 0.01

Glint angle (5 km resolution)
Fv -100 100

RTLS volumetric kernel (5 km resolution)
Fg -100 100

RTLS geometric kernel (5 km resolution)

Terms of Use

MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.

Citations:

Explore with Earth Engine

Code Editor (JavaScript)
var collection = ee.ImageCollection('MODIS/061/MCD19A1_GRANULES')
                     .select('Sur_refl1')
                     .filterDate('2000-01-01', '2000-03-07');

var band_viz = {
  min: 0,
  max: 1100,
  palette: ['black', 'blue', 'purple', 'cyan', 'green', 'yellow', 'red']
};

Map.addLayer(collection.mean(), band_viz, 'Surface Bidirectional Reflectance Factor');
Map.setCenter(76, 13, 6);
Open in Code Editor
The MCD19A1 Version 6.1 data product is a Moderate Resolution Imaging Spectroradiometer (MODIS) Terra and Aqua combined Land Surface Bidirectional Reflectance Factor (BRF) gridded Level 2 product produced daily at 500 meter and 1 kilometer resolution. For more information see the MAIAC user guide.
MODIS/061/MCD19A1_GRANULES, aerosol,aod,aqua,daily,global,maiac,modis,nasa,satellite-imagery,terra,usgs
2000-12-21T00:00:00Z/2025-04-01T23:55:00Z
-90 -180 90 180
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