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Terrestrial Hydrosphere News

Articles, resources, and announcements from Terrestrial Hydrosphere.

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A topographical map of the Goodwin Creek Watershed in Mississippi. Portions of the map are colored in shades of blue to green to show increasing elevation above a water outlet.

Satellites and Models Can Fill the Gaps in Watershed Data

The NLDAS-2 dataset was added to the AIMS decision-making platform to create hydrology and water quality simulations for farmers and land managers across the country.

News

May 14, 2026

False-color corrected reflectance image overlaid with flood information for Lake Bangweulu and the surrounding wetlands on 27 April 2026 from the MODIS instrument aboard the Terra satellite

A Different View of Lake Bangweulu and Wetlands, Zambia

The MODIS instrument aboard the Terra platform captured this image on April 27, 2026.

Worldview Image of the Week

May 1, 2026

Satellite-derived maps use red and yellow shading to distinguish between areas of new flooding versus recurrent/repeat flooding.

NASA Enhances Global Flood Products: Smarter Detection of Flooding, and the Release of a 23-Year Archive

NASA significantly enhanced its MODIS and VIIRS near real-time flood products, enabling users to distinguish between unusual and recurring flooding.

Blog

April 10, 2026

ICESat-2 data overlaid on North America.

Laser Altimetry Applications for a Changing World: Measuring Snow Depth with ICESat-2

A data training webinar to learn about the ICESat-2 Global Geolocated Photons product and two snow depth estimation methods.

Webinar

April 10, 2026

30-, 60- and 90-day forecasts of dry and wet conditions, relative to the historic record for the lower 48 states, use GRACE-FO satellite groundwater data for the initial conditions.

Below the Surface: Tracking Groundwater from Space

This training offered by NASA's Applied Remote Sensing Training (ARSET) program covers applicable data sources for assessing groundwater change.

News

March 9, 2026

True-color corrected reflectance image of ice in the Chesapeake Bay and Delaware Bay on 9 February 2026 from the MODIS instrument aboard the Terra satellite.

Ice in the Chesapeake and Delaware Bays

Image captured February 9, 2026, by the MODIS instrument aboard the Terra platform.

Worldview Image of the Week

Feb. 12, 2026

OPERA RTC SAR Backscatter image of flooding in Mozambique on 24 January 2026 from the C-Band SAR instrument aboard the Sentinel-1 satellite.

Flooding in Mozambique

Image captured on December 18, 2025, by the C-Band SAR instrument aboard ESA's Sentinel-1A platform.

Worldview Image of the Week

Jan. 29, 2026

data visualization shows the mean flow of global rivers for March 2023 to May 2025, as seen by the Surface Water and Ocean Topography (SWOT) platform (m3/s). Yellow indicates larger water flow estimates, while blues reflect smaller river flow estimates.

NASA and CNES Release Unprecedented Global River Discharge and Water Quality Estimates

New SWOT L4 river water flow and quality estimates support water resources management, extremes forecasting, and science research.

News

Jan. 16, 2026

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