![NASA/ECOSTRESS/L2T_STARS/V2](https://developers.google.com/earth-engine/datasets/images/NASA/NASA_ECOSTRESS_L2T_STARS_V2_sample.png)

Dataset Availability
:   2018-07-09T00:00:00Z--2026-10-31T00:00:00Z

Dataset Producer
:


    [Land Processes Distributed Active Archive Center](https://www.earthdata.nasa.gov/data/catalog/lpcloud-eco-l2t-stars-002)

Cadence
:   1 Day

Tags
:
    [albedo](https://developers.google.com/earth-engine/datasets/tags/albedo) [ecostress](https://developers.google.com/earth-engine/datasets/tags/ecostress) [land](https://developers.google.com/earth-engine/datasets/tags/land) [ndvi](https://developers.google.com/earth-engine/datasets/tags/ndvi) [plant-productivity](https://developers.google.com/earth-engine/datasets/tags/plant-productivity)

#### Description

The ECOSTRESS Tiled Ancillary NDVI and Albedo (ECO_L2T_STARS) V002 dataset
provides Normalized Difference Vegetation Index (NDVI) and albedo data at a
70m spatial resolution. This ancillary product, essential for understanding
plant water needs and stress, is created through a data fusion process that
combines Visible Infrared Imaging Radiometer Suite (VIIRS) and Harmonized
Landsat Sentinel (HLS) data. The fusion is performed using the STARS
algorithm, a Bayesian timeseries methodology, to align the data with
daytime ECOSTRESS overpasses. This product is only generated for
corresponding ECOSTRESS Land Surface Temperature and Emissivity tiles.

Documentation:

- [User's Guide](https://lpdaac.usgs.gov/documents/1655/ECO_L1C-4_Grid_Tile_User_Guide_V2.pdf)

- [Algorithm Theoretical Basis Document (ATBD)](https://lpdaac.usgs.gov/documents/1869/ECOSTRESSL3JET_ATBD_V1.pdf)

- [General Documentation](https://github.com/nasa/ECOSTRESS-Data-Resources)

- [Land Processes Distributed Active Archive Center](https://www.earthdata.nasa.gov/centers/lp-daac)

### Bands

**Bands**

Pixel size: 70 meters (all bands)

| Name | Pixel Size | Description |
|---|---|---|
| `NDVI` | 70 meters | Normalized Difference Vegetation Index (NDVI) |
| `NDVI-UQ` | 70 meters | Normalized Difference Vegetation Index (NDVI) uncertainty. |
| `albedo` | 70 meters | Albedo |
| `albedo-UQ` | 70 meters | Albedo uncertainty. |

### 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

Citations:

- Hook, Simon, et al. ECOSTRESS Tiled Ancillary NDVI and Albedo L2 Global 70 m
  v002. NASA Land Processes Distributed Active Archive Center, 2023,
  doi:[10.5067/ECOSTRESS/ECO_L2T_STARS.002](https://doi.org/10.5067/ECOSTRESS/ECO_L2T_STARS.002)

### DOIs

- <https://doi.org/10.5067/ECOSTRESS/ECO_L2T_STARS.002>

### Explore with Earth Engine

> [!NOTE]
> **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)

### Code Editor (JavaScript)

```javascript
var dataset = ee.ImageCollection('NASA/ECOSTRESS/L2T_STARS/V2')
                  .filter(ee.Filter.date('2025-03-01', '2025-05-01'));
var NDVI = dataset.select('NDVI').mean();

var vis = {
  min: -1.0,
  max: 1.0,
  palette: ['00008B', 'A9A9A9', 'CD853F', 'FFFF00', '90EE90', '006400'],
};

Map.setCenter(-77.1056, 38.8904, 10);
Map.addLayer(NDVI, vis, 'NDVI');
```
[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/NASA/NASA_ECOSTRESS_L2T_STARS_V2) [ECOSTRESS Tiled Ancillary NDVI and Albedo L2 Global 70 m V002](https://developers.google.com/earth-engine/datasets/catalog/NASA_ECOSTRESS_L2T_STARS_V2) The ECOSTRESS Tiled Ancillary NDVI and Albedo (ECO_L2T_STARS) V002 dataset provides Normalized Difference Vegetation Index (NDVI) and albedo data at a 70m spatial resolution. This ancillary product, essential for understanding plant water needs and stress, is created through a data fusion process that combines Visible Infrared Imaging Radiometer Suite (VIIRS) ... NASA/ECOSTRESS/L2T_STARS/V2, albedo,ecostress,land,ndvi,plant-productivity 2018-07-09T00:00:00Z/2026-10-31T00:00:00Z -90 -180 90 180 Google Earth Engine https://developers.google.com/earth-engine/datasets

- [https://doi.org/10.5067/ECOSTRESS/ECO_L2T_STARS.002](https://doi.org/https://www.earthdata.nasa.gov/data/catalog/lpcloud-eco-l2t-stars-002)
- [https://doi.org/10.5067/ECOSTRESS/ECO_L2T_STARS.002](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/NASA_ECOSTRESS_L2T_STARS_V2)