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

Remote Sensing of Earth’s Environment from Terra

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

Earth Observation With Satellite

How successfully do rain gauges catch rainfall patterns? Do the satellites record the same patterns of data as the ground-based gauges? How many gauges are required in order to observe regional ...
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

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

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

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

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

Flash Floods in Central Texas

A large storm system brought more than a foot of rain to parts of Central Texas on October 30 and 31, 2013. Up to 14 inches (36 cm) of rain fell in the Austin region, according to the National Weather ...
NASA

Ship Wave Clouds Behind the Crozet Islands

Air flows like water in the atmosphere with invisible currents and waves. On April 9, 2014, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this view that ...
NASA

Snow in the Northeastern United States

Snow cover sprawled across the northeastern United States in early March 2013. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this natural-color image on ...
NASA

All Dry on the Western Front

2013 was a dry year for California, but it has nothing on 2014 so far. January is on track to be California’s driest on record, and since the state receives half of its precipitation between December ...