NASA Earthdata

National Aeronautics and Space Administration

March 2025 EARTHDATA DISCOVERY Open Access for Open Science

Esri Fed GIS 2025: Katie Baynes Delivers the Plenary           In her address to the Geographic Information Systems (GIS) community, our Earth Data Officer, Katie Baynes, highlights the many ways NASA’s Earth science data informs crucial action on the ground—including disaster management, agriculture planning, and air quality monitoring. View the StoryMap for a full recap.                   Earthdata provides a range of tutorials, data recipes, tools, and services to help GIS users analyze data, create maps, and develop applications. ➞                       Articles

The Harmonized Landsat Sentinel-2 Project Releases Vegetation Indices NASA’s Harmonized Landsat and Sentinel-2 (HLS) project released two new products: the Landsat 30-meter Vegetation Index and Sentinel-2 30-meter Vegetation Index. Each product contains a suite of nine vegetation indices with applications including, agriculture, forest monitoring, vegetation health, and wildfire.           FIRMS Releases New Features to Identify Active Fires by Type Users of NASA’s Fire Information for Resource Management System (FIRMS) can now differentiate between fires caused by burning vegetation and fires from natural heat sources or industrial heat sources.           X-Snow Project Fills Gap in East Coast Snow Data A new citizen science project called X-Snow pairs with residents in the Catskill region of New York to measure snowfall and share validation data for NASA’s remote sensing snow measurements and models and for local pollution, climate, and environmental research.           Analysis and Review of CMR Project Checks NISAR Metadata In preparation for NISAR—the NASA/ISRO (Indian Space Research Organisation) Synthetic Aperture Radar mission—NASA is working to ensure that mission data can be integrated into the Common Metadata Repository (CMR), a crucial step in confirming data pipeline readiness.           Mean Night Temperature Anomalies in January 2025 The January 2025 analysis of Atmospheric Infrared Sounder (AIRS) surface temperature data and Integrated Multi-satellite Retrievals for GPM (IMERG) precipitation data from NASA’s Goddard Earth Sciences Data and Information Services Center (GES DISC) confirmed an unusual weather pattern that led to anomalously cold temperatures and snow in the southeastern United States. In Canada and Alaska, however, it was unusually warm.                       NASA ESDIS Data User Survey NASA's Earth Science Data and Information System (ESDIS) Project is gathering feedback from our stakeholder community to better understand how data users discover, access, and work with earth science data. It should take approximately 10-15 minutes to complete. All responses are confidential and the information we gather will be invaluable to helping us improve the user experience of our web-based data tools.                   Webinars & Events

Laser Altimetry Applications for a Changing World: Working with ICESat-2 Bathymetry Data April 9, 2025           A new global Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) bathymetric data product, ATL24, is available. In this webinar, members of the ICESat-2 team present use cases, including training models for extracting bathymetry from multispectral imagery and identifying hazards to marine navigation.                     NASA CSDA Program Vendor Focus—GHGSat Recorded March 19, 2025 GHGSat, a NASA Commercial Satellite Data Acquisition (CSDA) program vendor, provides access to commercial methane emissions data products. Learn how GHGSat scientists access and work with these products, and which research topics the data is best suited for as a point source monitoring system.               NASA CSDA Program Vendor Focus—Airbus Recorded February 19, 2025 The NASA Commercial Satellite Data Acquisition (CSDA) program vendor Airbus provides the NASA community with optical and Synthetic Aperture Radar (SAR) products and services, including elevation data and ground control points. Learn how to task Airbus satellites and order high resolution archive and elevation data.                         New Data, Tutorials, & Resources           New NASA Earth Science Data NASA’s archive of unrestricted data continues to grow. Read summaries of the latest data products, services, and tools released over the past month.           Find Landsat and Sentinel-2 Imagery by Area of Interest in Worldview In this new tutorial, learn how to use the Worldview “Available Imagery Dates” selector to find Harmonized Landsat and Sentinel-2 (HLS) imagery for your area of interest.           New AppEEARS Tutorials: Access Landsat 8 Surface Reflectance Data Two new Earthdata tutorials guide users in accessing Landsat 8 point and area data using the Application for Extracting and Exploring Analysis Ready Samples (AppEEARS) tool.           The Application of Earth Observations for Assessing Waterborne Disease Risk March 25 and 27, 2025 This two-part training will focus on describing and accessing remote sensing observations useful as water quality indicators of waterborne diseases, and will present case studies where remote sensing data are used to assess the likelihood of cholera outbreaks.           Introduction to NASA Earth Observations for Operational Wildfire Monitoring and Management Available Online This three-part training will familiarize participants with the various modules available in NASA’s Fire Information for Resource Management System (FIRMS) and explore the range of data and information available as well as the characteristics of satellite-based active fire detection.           Fundamentals of Remote Sensing Available Online In this self-paced course, you’ll learn the underlying science behind how remote sensing works and the basic functional characteristics of platforms and instruments. By the end of the course, you’ll be equipped to begin your journey using NASA’s no-cost, open-access remote sensing data and resources.                   Worldview Images of the Week           Dust Blowing Across the U.S. NASA’s Advanced Baseline Imager (ABI) captured dust blowing from Mexico, New Mexico, and Texas that was then picked up by a storm system that swept across the U.S.           High Chlorophyll a Concentrations in the Gulf of Oman and Arabian Sea Images acquired by the Ocean Color Instrument (OCI) aboard the Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) platform are overlaid with Worldview’s Chlorophyll a layer, which provides the near-surface concentration of chlorophyll a in milligrams of chlorophyll pigment per cubic meter in the ocean.           Flooding in Arkansas, Tennessee, Kentucky, and Indiana, USA View imagery comparison that shows flooding across the U.S. on February 25, 2025, due to heavy rains associated with a massive winter storm.           Iceberg A23a Grounded Near South Georgia Island Iceberg A23A has run aground, as shown in a false-color corrected reflectance (Bands 7-2-1) image from the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Aqua platform on March 4, 2025.           Swirling Clouds in the Atlantic Ocean Imagery from MODIS aboard the Terra platform reveals patterns of swirling clouds, known as von Kármán vortices or Karman vortex streets, above the Cabo Verde islands.                 NASA's Earth Science Data Systems (ESDS) Program oversees the life cycle of NASA’s Earth science data and seeks to maximize the scientific return from missions and experiments.

 

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