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August 25, 2025 Natural Events

Latest Images From the Past 7 Days view archive of natural events

A Sea Aswirl With Chlorophyll One of NASA's newest Earth-observing sensors extends and improves the continuous measurement of light-harvesting pigments in ocean surface waters. (Aug 21, 2025)       Hurricane Erin Roils in the Atlantic The major hurricane steered clear of land but delivered tropical storm conditions to coastal areas along its path. (Aug 20, 2025)       Smoke Blankets the Iberian Peninsula Fueled by extreme heat and dry conditions, intense wildfires in Spain and Portugal sent thick smoke across parts of Europe. (Aug 18, 2025)

NASA | 8800 Greenbelt Rd., Greenbelt, MD 20771             National Aeronautics and Space Administration                             August 2025 EARTHDATA DISCOVERY Open Access for Open Science                     Now That NISAR Launched, Here's What You Can Expect From the Data           The NASA-ISRO Synthetic Aperture Radar (NISAR) satellite, a collaboration between NASA and the Indian Space Research Organization (ISRO), launched on July 30. Equipped with two powerful radars, NISAR will scan nearly every land and ice surface twice every 12 days, providing information about changes to Earth’s surface with incredible precision.                   Explore the latest learning resources, news, and information about expected data products from NISAR. ➞                       Articles                 NASA Is Releasing the Final Version of MOPITT's 25-Year Data Record Later this year, NASA’s Atmospheric Science Data Center (ASDC) will release a definitive final version of the Measurements Of Pollution In The Troposphere (MOPITT) data record—an instrument that was retired in February after 25 years in orbit. This final version will offer improved data quality compared to previous versions.           NASA Science Might Be Calling You Apply for a Research Opportunities in Space and Earth Science (ROSES)-2025 grant to conduct real-world research that advances NASA’s science goals.           Nominate an Impactful Dataset With AGU The American Geophysical Union (AGU) is seeking input to identify and highlight datasets that have made considerable community impact. Nominations are due by October 10, 2025.           TROPOMI Near Real-Time Products Support the Air Quality and Operations Communities Near real-time (NRT) products from the TROPOspheric Monitoring Instrument (TROPOMI) provide crucial details about aerosol properties and atmospheric composition.           ESDIS Releases Version 2.0.2 of the Data Product Development Guide (DPDG) for Data Producers The latest installment of the DPDG offers data product developers a consolidated, comprehensive guide for creating data products that best serve NASA’s end-user community.           USGS Releases WISP Dashboard The Water Information from SPace (WISP) dashboard brings together data from NASA’s Surface Water and Ocean Topography (SWOT) satellite and United States Geological Survey (USGS) streamgages in a user-friendly application.                   Webinars & Events                     Remote Sensing for Climate-Sensitive Infectious Diseases September 2 and 4, 2025           Learn the basic principles of how satellite remote sensing data can be applied to track climate-sensitive vectorborne disease outbreaks and provide early warnings for potential outbreaks. Participants will learn about general approaches to apply satellite remote sensing data when studying or forecasting climate sensitive infectious diseases. These will be illustrated with a case study example in the forecasting of Malaria.                     2025 NASA POWER Global Community Summit September 9-10, 2025 Join NASA's Prediction Of Worldwide Energy Resources (POWER) team for a virtual Global Community Summit on Sept. 9-10, 2025, to learn about POWER, exchange insights, and to explore new opportunities to support user communities.               Assessing Extreme Weather Statistics using NASA Earth eXchange Global Daily Downscaled Projections (NEX-GDDP-CMIP6) September 10-17, 2025 This two-part training, offered by NASA's Applied Remote Sensing Training Program (ARSET), focuses on assessing projected statistics of extreme heat and cold wave events, and extreme precipitation excess and deficit events, from NEX-GDDP-CMIP6 at regional scale during the 21st century to assess regional risk assessment.               Laser Altimetry Applications for a Changing World: Working with ICESat-2 Sea Ice Data Recorded on August 6, 2025 This webinar provides an overview of the reference ICESat-2 sea ice data products, including the along-track sea ice height and freeboard products (ATL07 and ATL10) as well as the derived gridded products ATL20 and ATL21. Experts will demonstrate earthaccess, a Python package to search for and access NASA data, and present specific data use cases, including the derivation of sea ice thickness and applications in sea ice and climate modeling.               Harmony Services: Subset, Regrid, and Reproject Data in the Cloud Recorded on July 31, 2025 This webinar demonstrates how to customize Level-1 and atmospheric datasets prior to download using the new geoloco and subset-band-name tools. These tools are provided in NASA Earthdata Search and help users request only the data that they need in the format desired, saving valuable bandwidth and time.               From Space to Solutions: Access, Visualization, and Analysis Services for SWOT Hydrology Recorded on July 30, 2025 This webinar will explore Surface Water and Ocean Topography (SWOT) hydrology data collections of rivers and lakes, highlighting tools provided by both NASA's Physical Oceanography Distributed Active Archive Center (PO.DAAC) and USGS.               Introduction to NASA Snow and Ice Data Products and Applications for Water Resources Management Recorded on July 24, 31, and August 7, 2025 This collaborative training between ARSET, NASA’s National Snow and Ice Data Center, and NASA's Western Water Actions Office introduces NASA’s snow and ice data products and snow water equivalence data, with a particular focus on snow data applications to monitor and forecast snow-fed river flow and water availability.               NASA CSDA Program Vendor Focus—Pixxel Recorded July 23, 2025 Learn more about the NASA Commercial Satellite Data Acquisition (CSDA) program vendor Pixxel and how its hyperspectral data can support research and applications such as vegetation classification and health, soil moisture, water quality, and more.               Fundamentals to Use Hyperspectral and Thermal NASA Earth Observations Recorded July 21-22, 2025 This two-day webinar covers the fundamentals needed to work with NASA’s high-spectral resolution land-based Earth observation data from NASA’s Earth Surface Mineral Dust Source Investigation (EMIT), ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS), and Plankton, Aerosol, Cloud, Ocean Ecosystem (PACE) missions.                         Learning Resources           Use Giovanni and Panoply to Create Line Plot Cross-Sections of Earth Science Data Learn how to create a Giovanni data map, download the corresponding netCDF file, open the file with Panoply, and create line plots.           Spatial, Temporal, and Advanced Filtering in NASA Earthdata Search Find the data you need by using advanced filtering options in Earthdata Search, which enable users to drill down by temporal and spatial parameters.           Earthdata Cloud Cookbook Access a collection of tutorials that support migration to the cloud.           NASA Open Science 101 NASA’s Open Science 101 is a self-paced online curriculum designed to equip learners with the foundational knowledge and practical skills needed to engage in collaborative and transparent research. Key skills taught in this course include data management, open publishing, and research workflow optimization. Complete all five modules and earn a NASA Open Science digital badge that can be shared on social media.                     Data Alerts and Outages           New NASA Earth Science Data Read summaries of the latest data products, services, and tools released during the past month in NASA’s ever-expanding open-access data archive.           NASA PREFIRE Products Now Publicly Available All NASA Polar Radiant Energy in the Far InfraRed Experiment (PREFIRE) datasets are now publicly available through NASA's Atmospheric Science Data Center (ASDC).           Status Update on DMSP Data Products The Department of Defense has extend the timeline for decommissioning of the satellite to September 2026, the planned end of the Defense Meteorological Satellite Program (DMSP) mission.           Global Surface Emissivity Spectral Atlas Database Released The National Airborne Sounder Testbed-Interferometer (NAST-I) team released newly versioned science products: The Global Surface Emissivity Spectral Atlas (GSESA) Database. The database contains global, monthly climatology infrared emissivity functional Empirical Orthogonal Function (EOF) scores in 0.25 x 0.25 latitude-longitude resolution.           MODIS Version 6.1 OPeNDAP Access at LP DAAC To Be Retired Access to Moderate Resolution Imaging Spectroradiometer (MODIS) Collection 6.1 datasets via legacy, on-premises Open-source Project for a Network Data Access Protocol (OPeNDAP) at NASA's Land Processes Distributed Active Archive Center (LP DAAC) will be retired in a phased approach.           Daymet Data Access Temporarily Disabled in AppEEARS Access to Daymet Daily Surface Weather Data on a 1-km Grid for North America, Version 4.1 data has been temporarily disabled.           VIIRS Version 1 Data Products Decommissioned NASA's Land Processes Distributed Active Archive Center (LP DAAC) ceased distribution of VIIRS Version 1 Land Cover Dynamics, Burned Area, and Bidirectional Reflectance Distribution Function (BRDF)/Albedo Products.           Updates to Select AMSR2 Datasets to End on Sept. 1, 2025 The NASA AMSR2 Science Investigator-led Processing System (SIPS) will stop processing and delivering updates to the AMSR-E/AMSR2 Unified datasets and AMSR2 near real-time (NRT) datasets after September 1.           VIIRS Version 2 Gross Primary Productivity and Net Photosynthesis Data Products Released NASA's Land Processes Distributed Active Archive Center (LP DAAC) has released the Visible Infrared Imaging Radiometer Suite (VIIRS) Version 2 Gross Primary Productivity and Net Photosynthesis data products at 500 meter resolution.                   Worldview Images of the Week           Wildfires in Portugal and Northern Spain A recent heatwave fueled wildfires in Portugal and Spain, as well as other parts of southern Europe. The Visible Infrared Imaging Radiometer Suite (VIIRS) aboard the joint NASA/NOAA NOAA-20 platform captured images of the advancing wildfires driven by extreme temperatures and moderate winds.           Gifford Fire, California The VIIRS instrument aboard the joint NASA/NOAA NOAA-21 platform captured imagery of Central California's Gifford Fire. A false-color corrected reflectance image animation illustrates the spread of the fire from August 1 to August 7.           Tropical Cyclones Co-May and Krosa Tropical Cyclones Co-May and Krosa made landfall on the port city of Zhouhan in Zhejiang province, China on July 30. These cyclones are visible in a Brightness Temperature image provided by the VIIRS instrument aboard NOAA-21.           Nighttime Lights of North and Central America A stunning image showing the nighttime lights of North and Central America was captured by the VIIRS instrument aboard the joint NASA/NOAA Suomi NPP platform. Follow the link to see an interactive image showing a comparison between the Black Marble Nighttime At Sensor Radiance layer and the Black Marble Gap-Filled BRDF Corrected Nighttime Lights layer.           Uvea, Wallis and Futuna This true-color reflectance image shows the island of Uvea (Wallis) of Wallis and Futuna in the west-Central Pacific Ocean. The image was captured by the MSI instrument aboard ESA's Sentinel-2B satellite.                 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.                 Contact Us     NASA | 8800 Greenbelt Rd., Greenbelt, MD 20771