ECOSTRESS Evapotranspiration dis-ALEXI USDA Daily L3 Global 30m V001
The ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS) mission measures the temperature of plants to better understand how much water plants need and how they respond to stress. ECOSTRESS is attached to the International Space Station (ISS) and collects data over the conterminous United States (CONUS) as well as key biomes and agricultural zones around the world and selected [FLUXNET](http://fluxnet.fluxdata.org/about/) validation sites. A map of the acquisition coverage can be found on the ECOSTRESS website (https://ecostress.jpl.nasa.gov/science). The United States Department of Agriculture (USDA) ECO3ETALEXIU Version 1 data product provides estimates of daily evapotranspiration (ET) using the ECOSTRESS Level 2 (L2) land surface temperature and emissivity (LST&E) product, along with ancillary meteorological data and remotely sensed vegetation cover information. The ECO3ETALEXIU data product is derived using a physics-based surface energy balance (SEB) algorithm, the Atmosphere Land Exchange Inverse (ALEXI) Disaggregation algorithm (disALEXI). Described in the Algorithm Theoretical Basis Document (ATBD) (https://lpdaac.usgs.gov/documents/332/ECO3ETALEXIU_ATBD_V1.pdf), disALEXI is based on spatial disaggregation of regional-scale fluxes from the ALEXI SEB model. Many approaches exist for mapping ET spatially; however, SEB methods are favored for remote sensing retrievals based on land-surface temperature. ALEXI was initially developed for managed landscapes. Applications include crop water use, crop phenology monitoring, and drought early warning or water stress detection. The output ET is generated on a UTM grid at a spatial resolution of 30 meters. The ECO3ETALEXIU Version 1 data product contains layers of daily ET, ET uncertainty, and associated quality flags. A low-resolution browse is also available showing daily ET as a stretched image with a color ramp in JPEG format.
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| Spatial Extent: | Bounding Rectangle: N: 90.0 S: -90.0 E: 180.0 W: -180.0 |
Data Format(s): | Archive: HDF5Distribution: HDF5 |
| Temporal Extent: | Platform(s): | ISS | |
| Data Center(s): | LP DAAC | Instrument(s): | ECOSTRESS |
| Version: | 001 | ||
- USER'S GUIDE: https://lpdaac.usgs.gov/documents/331/ECO3ETALEXIU_User_Guide_V1.pdf, The technical information in the User's Guide enables users to interpret and use the data products.
- ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD): https://lpdaac.usgs.gov/documents/332/ECO3ETALEXIU_ATBD_V1.pdf, The ATBD provides physical theory and mathematical procedures for the calculations used to produce the data products.
- GENERAL DOCUMENTATION: https://lpdaac.usgs.gov/documents/333/ECO3ETALEXIU_PSD_V1.pdf, The Product Specification Document (PSD) describes the format and contents of the ECO3ETALEXIU product.
- HOW-TO: https://lpdaac.usgs.gov/documents/227/ECO_Earthdata_Search_Quick_Guide.pdf, The Earthdata Search Quick Guide explains how to search ECOSTRESS data in NASA Earthdata Search.
Collection Information
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Purpose
Science Research -
Version Description
Version 1 -
DOI
10.5067/ECOSTRESS/ECO3ETALEXIU.001
https://doi.org
- Search for granules from this collection
Data Identification
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Processing Level
3
- Quality
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Collection Progress
Active
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Access Constraints
None
Related URLs
Acquisition Information
Temporal Information
Spatial Information
| Coverage Type | Zone Identifier | Geometry | Granule Representation |
|---|---|---|---|
| HORIZONTAL | CARTESIAN | CARTESIAN |
Location Keywords
- GEOGRAPHIC REGION
- GLOBAL
Data Centers
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LP DAAC
ARCHIVERLand Processes Distributed Active Archive Center
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U.S. Geological Survey, Earth Resources Observation and Science (EROS) Center
Sioux Falls, South Dakota 57198
M-F, 8 a.m. to 4 p.m. Central Time
605-594-6116
866-573-3222
Contact DetailsLP DAAC User Services is the point of contact for answering questions concerning data products, data access, and online applications.
The LP DAAC website provides detailed information on discovery, distribution, access, and support of land data products.
https://lpdaac.usgs.gov/
- Home Page
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NASA/JPL/ECOSTRESS
PROCESSORECOsystem Spaceborne Thermal Radiometer Experiment on Space Station, Jet Propulsion Laboratory, NASA
This data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
Data Contacts
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LP DAAC User Services
User ServicesLP DAAC User Services
LP DAAC-
U.S. Geological Survey, Earth Resources Observation and Science (EROS) Center
Sioux Falls, South Dakota 57198
M-F, 8 a.m. to 4 p.m. Central Time
605-594-6116
866-573-3222
Contact DetailsLP DAAC User Services is the point of contact for answering questions concerning data products, data access, and online applications.
The LP DAAC website provides detailed information on discovery, distribution, access, and support of land data products.
https://lpdaac.usgs.gov/
- Home Page
-
Archive And Distribution Information
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Format: HDF5
Format Type: Native
Average File Size: 80.0 MB
Total Collection File Size Begin Date: 2018-07-09T00:00:00.000Z
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Format: HDF5
Format Type: Native
Media: https
Average File Size: 80.0 MB
Total Collection File Size Begin Date: 2018-07-09T00:00:00.000Z