Image from TERRA
Tue, 24 Aug 2021 13:05 EDT

Smoke from several large wildfires burning in Northern California can be seen traveling miles into the atmosphere.

Image from TERRA
Fri, 20 Aug 2021 12:00 EDT

Drought is a natural part of the climate cycle, but as Earth’s atmosphere continues to warm due to climate change, droughts are becoming more frequent, severe and pervasive. Ranchers throughout the U.S. are using data from NASA and others to care for their herds and the land during drought conditions.

Image from TERRA
Thu, 19 Aug 2021 12:09 EDT

Evapotranspiration: Watching Over Water Use

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/.