NASA

Satellite Observations

To improve air quality, it is important to know what contributes to polluting the air. Haze comes from a variety of sources. Your skies may be hazy from local traffic, or industry such as for example ...
NASA

Backyard Observation

Testing for nitrogen in your local watershed can help identify potential “œhot spots” in your community that may be contributing to nutrient loading downstream. With a simple, inexpensive field test ...
NASA

Clear Skies Over the Iberian Peninsula

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 ...
NASA

Return to Everest

At approximately 6:45 a.m. on April 18, 2014, a block of ice tumbled from the edge of a hanging glacier onto a popular climbing route on the south face of Mount Everest. The ice, which weighed as much ...
NASA

Haze in the Sichuan Basin

A layer of haze filled China’s Sichuan Basin on January 23, 2014, when the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite acquired this natural-color image. The haze ...
NASA

Dr. Yasushi Yamaguchi

The Science Team Leader for ASTER, Dr. Yasushi Yamaguchi, is a professor at the Graduate School of Environmental Studies, Nagoya University, Japan. He graduated Tohoku University, Japan, and obtained ...
NASA

Remote Sensing of Earth’s Environment from Terra

David Herring, Science, Systems, and Applications, Inc.
NASA

What Goes Around Comes Around

The map above shows land surface temperature anomalies in North America for January 1-7, 2014. Based on data from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite, ...
NASA

Observing Your Air Quality

There are many ways to gauge air quality. The most common measure is visibility, since most of the constituents of air pollution form visible haze. You can use your own observations and a digital ...
NASA

Dr. Helen Worden

In June of 2016, Dr. Helen Worden became the U.S. Principal Investigator for MOPITT. She is interested in multi-decadal trends of carbon monoxide that indicate changing emissions of pollution with ...
NASA

Rare Middle Eastern Snow Seen by Terra

A rare winter storm dropped snow across much of the Middle East between December 10 and 13, 2013. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite acquired this ...
NASA

TERRA Feedback

The Terra Science Team welcomes any feedback or suggestions as to whether to maintain the current orbit and the long-term data continuity, or lower the orbit, and therefore, shifting the crossing time ...