MODIS 1-year Nadir BRDF-Adjusted Reflectance (NBAR) Mosaic

AI-generated Key Takeaways

• The WHBU/NBAR_1YEAR dataset provides annual mosaics of Nadir BRDF-Adjusted Reflectance (NBAR) derived from MODIS data, available from 2000 to 2017.

• These mosaics are created by selecting the best quality observations from the MODIS 8-day products over a 1-year period.

• The dataset has been used by government agencies and NGOs for generating aboveground biomass/carbon maps in tropical countries.

• The data includes seven bands representing Nadir Reflectance at local solar noon for different wavelengths, with a pixel size of 463 meters.

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

Dataset Availability

2000-02-18T00:00:00Z–2017-01-01T00:00:00Z

Dataset Provider

Baccini, A. (Woods Hole Research Center), Sulla-Menashe, D. (Boston University)

Earth Engine Snippet

ee.ImageCollection("WHBU/NBAR_1YEAR")

Cadence

1 Year

Tags

albedo

annual

bu

mcd43a4

modis-derived

nbar

reflectance

satellite-imagery

whrc

Description

The mosaics are created by using the MODIS 8-Day 500 meter BRDF-Albedo Quality product. Data Quality flags are used to select the best observations from the MODIS 8-day 500 meter Nadir BRDF-Adjusted Reflectance imagery product. This specific mosaic picks observations from the three highest quality categories over a 1-year period of MODIS data.

The MODIS NBAR annual mosaics have been used by government agencies and NGOs in tropical countries as input to generate aboveground biomass/carbon maps. The Woods Hole Research Center has been using the dataset for country capacity building and technical training workshops in tropical countries.

Bands

Pixel Size
463 meters

Bands

Name	Pixel Size	Wavelength	Description
Nadir_Reflectance_Band1	meters	620-670nm	Best NBAR at local solar noon for band 1
Nadir_Reflectance_Band2	meters	841-876nm	Best NBAR at local solar noon for band 2
Nadir_Reflectance_Band3	meters	459-479nm	Best NBAR at local solar noon for band 3
Nadir_Reflectance_Band4	meters	545-565nm	Best NBAR at local solar noon for band 4
Nadir_Reflectance_Band5	meters	1230-1250nm	Best NBAR at local solar noon for band 5
Nadir_Reflectance_Band6	meters	1628-1652nm	Best NBAR at local solar noon for band 6
Nadir_Reflectance_Band7	meters	2105-2155nm	Best NBAR at local solar noon for band 7

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

Citations:

• Baccini, A., Laporte, N., Goetz, S. J., Sun, M., & Dong, H. (2008). A first map of tropical Africa's above-ground biomass derived from satellite imagery. Environmental Research Letters, 3(4), 045011. doi:10.1088/1748-9326/3/4/045011

DOIs

• https://doi.org/10.1088/1748-9326/3/4/045011

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Code Editor (JavaScript)

var dataset = ee.ImageCollection('WHBU/NBAR_1YEAR');

Map.addLayer(dataset.mean(), {min:0, max:7000});

Open in Code Editor

MODIS 1-year Nadir BRDF-Adjusted Reflectance (NBAR) Mosaic

The mosaics are created by using the MODIS 8-Day 500 meter BRDF-Albedo Quality product. Data Quality flags are used to select the best observations from the MODIS 8-day 500 meter Nadir BRDF-Adjusted Reflectance imagery product. This specific mosaic picks observations from the three highest quality categories over a 1-year period …

WHBU/NBAR_1YEAR, albedo,annual,bu,mcd43a4,modis-derived,nbar,reflectance,satellite-imagery

2000-02-18T00:00:00Z/2017-01-01T00:00:00Z

-60.1 -180 60.1 180

Google Earth Engine

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

• https://doi.org/10.1088/1748-9326/3/4/045011
• https://doi.org/10.1088/1748-9326/3/4/045011