Image from TERRA
Tue, 01 Jun 2021 14:00 EDT

The 2021 Atlantic hurricane season starts today, June 1. At NASA, we’re developing new technology and missions to study storm formation and impacts, including ways to understand Earth as a system.

Image from TERRA
Thu, 06 May 2021 10:00 EDT

Valley fever is a dangerous threat to human health – and cases are on the rise in the arid southwestern United States, as wind from increasing dust storms can transport the fungal spores that cause the disease. Valley fever is caused by the Coccidioides fungus, which grows in dirt and fields and can cause fever, rash and coughing. Using NASA resear

Image from TERRA
Fri, 23 Apr 2021 11:00 EDT

In a decade filled by record-breaking events including raging wildfires, numerous hurricanes, unseasonal flooding and historically cold temperatures, NASA has continued to learn more about how the planet is changing and the effect it has on Earth’s systems.

Month: August 2019

GDEM3 shaded relief topography of San Francisco
GDEM3 shaded relief topography of San Francisco

How tall is Mount Everest? How low is Death Valley? How high are the hills behind your home? What about the elevation of your favorite lake or river? Between the most northern islands of Greenland and the interior of Antarctica, elevation data from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Digital Elevation Model (GDEM) Version 3 can be accessed for free. The data is downloadable from Japan Space Systems and from NASA’s Land Processes Distributed Active Archive Center (LP DAAC).

The GDEM covers more land area at a higher resolution, while also decreasing water area anomalies. This is due in large part to the development of an additional new product, the ASTER Water Body Dataset (ASTWBD), which identifies all water bodies as either ocean, river, or lake. This is the first product providing a water mask that covers nearly the entire surface of Earth.

Read the entire press release https://lpdaac.usgs.gov/news/nasa-and-meti-release-aster-global-dem-version-3/

Read more from NASA Earthdata https://earthdata.nasa.gov/learn/articles/new-aster-gdem

ASTER GDEM and ASTWBD tiles may be downloaded from:

Japan Space Systems ­– http://www.jspacesystems.or.jp/ersdac/GDEM/E/

LP DAAC’s, NASA’s Earthdata Search –  https://search.earthdata.nasa.gov/

LP DAAC’s Data Pool ­– https://lpdaac.usgs.gov/tools/data-pool/.

The data are available with transformation services via the Application for Extracting and Exploring Analysis Ready Samples (AρρEEARS) at https://lpdaacsvc.cr.usgs.gov/appeears/.