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

Dataset Availability: 2000-12-21T00:00:00Z–2024-12-17T23:55:00Z
Dataset Provider: NASA LP DAAC at the USGS EROS Center
Earth Engine Snippet: ee.ImageCollection("MODIS/061/MCD19A1_GRANULES")

Cadence: 1 Day
Tags: aerosol aod aqua daily global maiac modis nasa terra usgs

Description

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.

Bands

Resolution
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
Bitmask for Status_QA 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

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

https://doi.org/10.5067/MODIS/MCD19A1.061

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

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

MODIS/061/MCD19A1_GRANULES, aerosol,aod,aqua,daily,global,maiac,modis,nasa,terra,usgs

2000-12-21T00:00:00Z/2024-12-17T23:55:00Z

Google Earth Engine

https://developers.google.com/earth-engine/datasets

https://doi.org/10.5067/MODIS/MCD19A1.061