ECOSTRESS Evapotranspiration PT-JPL Daily L3 Global 70m V001

Description

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). ECO3ETPTJPL Version 1 is a Level 3 (L3) product that provides evapotranspiration (ET) generated from data acquired by the ECOSTRESS radiometer instrument according to the Priestly-Taylor Jet Propulsion Laboratory (PT-JPL) algorithm described in the Algorithm Theoretical Basis Document (ATBD) (https://lpdaac.usgs.gov/documents/335/ECO3ETPTJPL_ATBD_V1.pdf). The ET product is generated from the Level 2 data products for surface temperature and emissivity, the Level 1 geolocation information, and a significant number of ancillary data inputs from other sources. ET is set by various controls, including radiative and atmospheric demand, and environmental sensitivity, productivity, vegetation physiology, and phenology. PT-JPL is best utilized for natural ecosystems. The L3 ET product is used for creating the Level 4 products, Evaporative Stress Index (ESI) and Water Use Efficiency (WUE). The ECO3ETPTJPL Version 1 data product contains layers of instantaneous ET, daily ET, canopy transpiration, soil evaporation, ET uncertainty, and interception evaporation. Data acquisition gaps: ECOSTRESS was launched on June 29, 2018 and moved to autonomous science operations on August 20, 2018 following a successful in-orbit checkout period. On September 29, 2018, ECOSTRESS experienced an anomaly with its primary mass storage unit (MSU). ECOSTRESS has a primary and secondary MSU (A and B). On December 5, 2018, the instrument was switched to the secondary MSU and science operations resumed. On March 14, 2019, the secondary MSU experienced a similar anomaly temporarily halting science acquisitions. On May 15, 2019, a new data acquisition approach was implemented and science acquisitions resumed. To optimize the new acquisition approach TIR bands 2, 4 and 5 are being downloaded. The data products are as previously, except the bands not downloaded contain fill values (L1 radiance and L2 emissivity).

Resources

Name Format Description Link
21 Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data. https://search.earthdata.nasa.gov/search?q=C1534730469-LPDAAC_ECS
33 The technical information in the User's Guide enables users to interpret and use the data products. https://lpdaac.usgs.gov/documents/424/ECO3ETPTJPL_User_Guide_V1.pdf
33 The Product Specification Document (PSD) describes the format and contents of the ECO3ETPTJPL product. https://lpdaac.usgs.gov/documents/381/ECO3ETPTJPL_PSD_V1.pdf
33 The Algorithm Specification Document (ASD) describes the computer processing used to generate the ECOSTRESS products. https://lpdaac.usgs.gov/documents/334/ECO3ETPTJPL_ASD_V1.pdf
22 Browse image for Earthdata Search https://e4ftl01.cr.usgs.gov//WORKING/BRWS/Browse.001/2020.10.29/ECOSTRESS_L3_ET_PT-JPL_13106_013_20201028T044524_0601_01.1.jpg
21 The Application for Extracting and Exploring Analysis Ready Samples (AρρEEARS) offers a simple and efficient way to perform data access and transformation processes. https://appeears.earthdatacloud.nasa.gov/
21 OPeNDAP provides direct access to data via HTTPS. https://opendap.cr.usgs.gov/opendap/hyrax/ECOB/ECOSTRESS/ECO3ETPTJPL.001/contents.html
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FECOSTRESS%2FECO3ETPTJPL.001
21 The LP DAAC website provides detailed information on discovery, distribution, access, and support of land data products. https://lpdaac.usgs.gov/
21 LP DAAC Data Pool provides direct access to available products via HTTPS. https://e4ftl01.cr.usgs.gov/ECOSTRESS/ECO3ETPTJPL.001/
21 The LP DAAC product page provides information on Science Data Set layers and links for user guides, ATBDs, data access, tools, customer support, etc. https://doi.org/10.5067/ECOSTRESS/ECO3ETPTJPL.001
33 The ATBD provides physical theory and mathematical procedures for the calculations used to produce the data products. https://lpdaac.usgs.gov/documents/335/ECO3ETPTJPL_ATBD_V1.pdf
21 USGS EarthExplorer provides users the ability to query, search, and dowload products available from the LP DAAC. https://earthexplorer.usgs.gov/
33 The Earthdata Search Quick Guide explains how to search ECOSTRESS data in NASA Earthdata Search. https://lpdaac.usgs.gov/documents/1573/Quick_Guide_for_Accessing_ECOSTRESS_Swath_Data_in_NASA_Earthdata_Search.pdf

Tags

  • atmospheric-water-vapor
  • atmosphere
  • earth-science

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