AI-generated Key Takeaways
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The NOAA/VIIRS/001/VNP43IA1 dataset provides daily, global, 500m resolution BRDF and Albedo model parameters derived from the Suomi NPP VIIRS instrument.
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This dataset includes three kernel weights (isotropic, volumetric, and geometric) for three spectral bands (I1, I2, I3) to model the anisotropic effects of the Earth's surface.
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VNP43IA1 data products are generated using 16 days of VIIRS data, temporally weighted to the ninth day, ensuring continuity with NASA's MODIS BRDF/Albedo data products.
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Users can access the dataset through Google Earth Engine and are requested to cite the dataset appropriately in publications using the provided DOI.
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The dataset covers the period from January 17, 2012, to June 9, 2024.
- Dataset Availability
- 2012-01-17T00:00:00Z–2024-06-09T00:00:00Z
- Dataset Provider
- NASA LP DAAC at the USGS EROS Center
- Cadence
- 1 Day
- Tags
Description
The Suomi National Polar-Orbiting Partnership (Suomi NPP) NASA Visible Infrared Imaging Radiometer Suite (VIIRS) Bidirectional Reflectance Distribution Function (BRDF) and Albedo Model Parameters (VNP43IA1) Version 1 product provides kernel weights (parameters) at 500 resolution. The VNP43IA1 product is produced daily using 16 days of VIIRS data, temporally weighted to the ninth day, which is reflected in the file name. The VNP43IA1 product provides three spectrally dependent kernel weights, also known as model parameters: isotropic (fiso), volumetric (fvol), and geometric (fgeo), which can be used to model anisotropic effects of the Earth's surface. All VNP43 data products are designed to promote the continuity of NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) BRDF/Albedo data product suite.
Documentation:
Bands
Pixel Size
500 meters
Bands
| Name | Pixel Size | Description |
|---|---|---|
BRDF_Albedo_Band_Mandatory_Quality_I1 |
meters | BRDF/Albedo mandatory quality for band I1 |
BRDF_Albedo_Band_Mandatory_Quality_I2 |
meters | BRDF/Albedo mandatory quality for band I2 |
BRDF_Albedo_Band_Mandatory_Quality_I3 |
meters | BRDF/Albedo mandatory quality for band I3 |
BRDF_Albedo_Parameters_fiso_I1 |
meters | Isotropic parameter for band I1 |
BRDF_Albedo_Parameters_fvol_I1 |
meters | Volumetric parameter for band I1 |
BRDF_Albedo_Parameters_fgeo_I1 |
meters | Geometric parameter for band I1 |
BRDF_Albedo_Parameters_fiso_I2 |
meters | Isotropic parameter for band I2 |
BRDF_Albedo_Parameters_fvol_I2 |
meters | Volumetric parameter for band I2 |
BRDF_Albedo_Parameters_fgeo_I2 |
meters | Geometric parameter for band I2 |
BRDF_Albedo_Parameters_fiso_I3 |
meters | Isotropic parameter for band I3 |
BRDF_Albedo_Parameters_fvol_I3 |
meters | Volumetric parameter for band I3 |
BRDF_Albedo_Parameters_fgeo_I3 |
meters | Geometric parameter for band I3 |
BRDF_Albedo_Band_Mandatory_Quality_I1 Class Table
| Value | Color | Description |
|---|---|---|
| 0 | None | Full BRDF inversions |
| 1 | None | Magnitude BRDF inversions |
BRDF_Albedo_Band_Mandatory_Quality_I2 Class Table
| Value | Color | Description |
|---|---|---|
| 0 | None | Full BRDF inversions |
| 1 | None | Magnitude BRDF inversions |
BRDF_Albedo_Band_Mandatory_Quality_I3 Class Table
| Value | Color | Description |
|---|---|---|
| 0 | None | Full BRDF inversions |
| 1 | None | Magnitude BRDF inversions |
Terms of Use
Terms of Use
LP DAAC NASA data are freely accessible; however, when an author publishes these data or works based on the data, it is requested that the author cite the datasets within the text of the publication and include a reference to them in the reference list.
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('NOAA/VIIRS/001/VNP43IA1') .filter(ee.Filter.date('2017-03-10', '2017-03-11')); var visualization = { bands: ['BRDF_Albedo_Parameters_fiso_I1'], min: 0, max: 1, palette: [ '000080','0000d9','4000ff','8000ff','0080ff','00ffff', '00ff80','80ff00','daff00','ffff00','fff500','FFda00', 'ffb000','ffa400','ff4f00','ff2500','ff0a00','ff00ff', ] }; Map.setCenter(89, 58, 3); Map.addLayer(dataset, visualization, 'Isotropic parameter for band I1');