Vegetation Index Data Access and Tools

From discovery to visualization, data tools such as Worldview, Giovanni, and Application for Extracting and Exploring Analysis Ready Samples (AppEEARS) guide users in making the most of vegetation index data.

Vegetation Index Data Tools

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Tool Sort descending	Description	Services
AppEEARS	The The Application for Extracting and Exploring Analysis Ready Samples (AppEEARS) offers users a simple and efficient way to perform data access and transformation processes.	Search and Discovery, Subsetting, Customization, Downloading, Visualization
Earthdata Search	Earthdata Search enables data discovery, search, comparison, visualization, and access across NASA’s Earth science data holdings.	Search and Discovery, Access, Cataloging, Cloud Computing, Downloading
Giovanni	Giovanni is a web application for accessing, visualizing, and analyzing Earth science remote sensing data without downloading the data.	Search and Discovery, Analysis, Access, Visualization, Downloading, Subsetting
Worldview	Worldview offers the capability to interactively browse over 1,200 global, full-resolution satellite imagery layers and download the underlying data.	Analysis, Search and Discovery, Visualization, Access, Comparison, Monitoring Natural Events

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Harmonized Landsat Sentinel-2 (HLS)

Learn More About HLS

This 2024 Normalized Difference Vegetation Index (NDVI) image from the HLS project shows the degree of land use change in a region of Western Brazil. Green areas with high NDVI values indicate healthy vegetation while tan and brown areas with low NDVI values indicate soil or barren areas.

The Harmonized Landsat Sentinel-2 Project Releases Vegetation Indices

These new vegetation indices offer the same near-global coverage, and 30-meter spatial resolution as the initial HLS products.

image of HLS Sentinel-2 data over Kansas

Harmonized Landsat Sentinel-2 (HLS) Code Now Openly Available

The release of the HLS codebase gives product users greater visibility into the project’s image processing pipeline.

HLS: Two Together Better than Two Apart

The purpose of the Harmonized Landsat Sentinel-2 (HLS) project led by IMPACT, is to combine two or more data streams into a single data set and increase their value.

IMPACT project lead Rahul Ramachandran presents at the 2023 IBM Think Conference

IBM Geospatial Foundation Model Trained with HLS Data

In partnership with IBM, NASA constructed the first geospatial foundation model specifically trained with Earth observation satellite imagery.

Vegetation Index Datasets

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Dataset	Platforms	Instruments	Temporal Extent	Spatial Extent	Data Format
ISLSCP II GIMMS Monthly NDVI, 1981-2002	FIELD INVESTIGATION, NOAA-14, Terra	LICOR LEAF AREA METER, STEEL MEASURING TAPE, AVHRR, MODIS	1981-07-01 to 2002-12-31	N: 90 S: -90 E: 180 W: -180	Shapefile
ISLSCP II Historical Croplands Cover, 1700-1992	FIELD INVESTIGATION, NOAA-14, Terra	LICOR LEAF AREA METER, STEEL MEASURING TAPE, MODIS, AVHRR	1700-01-01 to 1992-12-31	N: 90 S: -90 E: 180 W: -180	Shapefile
ISLSCP II Historical Land Cover and Land Use, 1700-1990	FIELD INVESTIGATION, Terra, NOAA-14	STEEL MEASURING TAPE, LICOR LEAF AREA METER, MODIS, AVHRR	1700-01-01 to 1990-12-31	N: 90 S: -90 E: 180 W: -180	Shapefile
ISLSCP II IGBP DISCover and SiB Land Cover, 1992-1993	FIELD INVESTIGATION, NOAA-14, Terra	STEEL MEASURING TAPE, LICOR LEAF AREA METER, MODIS, AVHRR	1986-01-01 to 1995-12-31	N: 90 S: -90 E: 180 W: -180	Shapefile
ISLSCP II Leaf Area Index (LAI) from Field Measurements, 1932-2000	FIELD INVESTIGATION, NOAA-14, Terra	STEEL MEASURING TAPE, LICOR LEAF AREA METER, MODIS, AVHRR	1932-01-01 to 2000-12-31	N: 71.3 S: -54.5 E: 172.75 W: -156.67	CSV
ISLSCP II Monthly Snow-Free Albedo, 1982-1998, and Background Soil Reflectance	FIELD INVESTIGATION, Terra, NOAA-14	STEEL MEASURING TAPE, LICOR LEAF AREA METER, MODIS, AVHRR	1982-01-01 to 1998-12-31	N: 90 S: -90 E: 180 W: -180	Shapefile
ISLSCP II NOAA 5-year Average Monthly Snow-free Albedo from AVHRR	FIELD INVESTIGATION, NOAA-14, Terra	STEEL MEASURING TAPE, LICOR LEAF AREA METER, MODIS, AVHRR	1985-04-01 to 1991-03-31	N: 90 S: -90 E: 180 W: -180	Shapefile
ISLSCP II Potential Natural Vegetation Cover	NOAA-14, Terra, FIELD INVESTIGATION	AVHRR, MODIS	1992-04-01 to 1993-04-01	N: 90 S: -90 E: 180 W: -180	ASCII
LBA Regional Land Cover from AVHRR, 1-Degree, 1987 (Defries and Townshend)	NOAA-9, NOAA-10, NOAA-11	AVHRR	1987-01-01 to 1987-12-31	N: 10 S: -25 E: -30 W: -85	multiple
LBA Regional Land Cover from AVHRR, 1-km, 1992-1993 (Hansen et al.)	NOAA-10, NOAA-9, NOAA-11	AVHRR	1992-01-01 to 1993-12-31	N: 10 S: -25 E: -30 W: -85	multiple

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