Image from TERRA
Wed, 10 Oct 2018 13:03 EDT

More than 400 miles above Earth, a satellite the size of a school bus is earning its frequent flyer miles. On Oct. 6, NASA’s Terra completed 100,000 orbits around Earth. Terra, which launched Dec. 18, 1999, is projected to continue operation into the 2020s.

Image from TERRA
Fri, 14 Sep 2018 01:33 EDT

NASA's MISR instrument captures Hurricane Florence just off the East Coast. Data from two of its nine cameras is combined to show the storm in 3D

Image from TERRA
Mon, 27 Aug 2018 16:33 EDT

For the first time ever, measurements from NASA Earth-observing research satellites are being used to help combat a potential outbreak of life-threatening cholera. Humanitarian teams in Yemen are targeting areas identified by a NASA-supported project that precisely forecasts high-risk regions based on environmental conditions observed from space.

Month: March 2014

International Satellite helped International Search for Flight 370

Terra, among a  satellites  from many nations, joined the effort in the search for Malaysian Airlines Flight MH-370. Read more

Clear Skies Over the Iberian Peninsula

NASA image courtesy Jeff Schmaltz, LANCE/EOSDIS MODIS Rapid Response Team at NASA GSFC. Caption by Adam Voiland.

Rarely do weather patterns and satellite overpass schedules align to provide cloud-free views of Western Europe in the spring. However, a high-pressure pattern kept skies spectacularly clear over the Iberian Peninsula and east into France and Germany as the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite passed over on March 8, 2014. The cloud-free area began to emerge on March 5 and persisted through March 11. Explore Worldview—a near-real time browser from the MODIS Rapid Response Team—to see a wider view and how the cloud-free area changed over time. Read more

NASA image courtesy Jeff Schmaltz, LANCE/EOSDIS MODIS Rapid Response Team at NASA GSFC. Caption by Adam Voiland.

Some Perspective on Winter 2014

      NASA Earth Observatory images by Jesse Allen, using MODIS data from the Land Processes Distributed Active Archive Center (LPDAAC). Caption by Michael Carlowicz.

For many residents of North America, the winter of 2013-14 has felt like one of the coldest in many years. Waves of Arctic air brought extended periods of cold weather and above-average snowfall to the middle and eastern portions of the United States and Canada. Seven Midwestern states had one of their top-ten coldest winters, and the Great Lakes were chilled until they reached nearly 91 percent ice cover. Even portions of Mexico and Central America were cooler than normal. Read More

NASA Earth Observatory images by Jesse Allen, using MODIS data from the Land Processes Distributed Active Archive Center (LPDAAC). Caption by Michael Carlowicz.

Dust Storm Blows Across Texas

NASA images courtesy Jeff Schmaltz, LANCE/EOSDIS MODIS Rapid Response Team at NASA GSFC. Caption by Holli Riebeek.

A low-pressure system brought strong winds—gusting to 55 miles (85 kilometers) per hour—to the Southern Plains on March 18, 2014. The winds picked up exposed soil from the parched landscape, resulting in a large dust storm that covered parts of Colorado, Kansas, Oklahoma, New Mexico, and Texas. The storm was the second in the past week to sweep across the region with similar wind patterns.

The Moderate Resolution Imaging Spectroradiometer (MODIS) acquired this image of the storm on March 18. The top image shows the dust over the Texas Panhandle at 1:15 p.m. Central Daylight Time from the MODIS instrument on NASA’s Terra satellite. Read more

NASA images courtesy Jeff Schmaltz, LANCE/EOSDIS MODIS Rapid Response Team at NASA GSFC. Caption by Holli Riebeek.

Cape Verde Under Dust

NASA image courtesy Jeff Schmaltz, LANCE/EOSDIS MODIS Rapid Response Team at NASA GSFC. Caption by Holli Riebeek.

When the winds of winter sweep across West Africa, temperatures drop and skies turn yellow. Prevalent from November to March, the harmattan is a desert wind that blows across the Sahara Desert from the northeast or the east, usually as a result of a high pressure system over the northwestern Sahara. Harmattan winds pick up dust and darken skies.

A harmattan dust storm was blowing on February 28, 2014, when the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite acquired this image. The yellow dust was concentrated largely over the Cape Verde Islands, where the mountain topography created swirling eddies and triangular wakes in the dust cloud. West Africa frames the right edge of the image, and distinct plumes of dust moved west from Senegal and Mauritania. Read more

NASA image courtesy Jeff Schmaltz, LANCE/EOSDIS MODIS Rapid Response Team at NASA GSFC. Caption by Holli Riebeek.