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

MODIS website informs a broad audience about MODIS data and products. The MODIS instrument is operating on both the Terra and Aqua spacecraft. It has a viewing swath width of 2,330 km and views the ...

No matter where you live-along the coast, in the heartland, or somewhere in between-your life is affected by water quality. Water quality issues raise many questions that are important to us all at ...

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 ...

ASTER website informs a broad audience about ASTER data and products. ASTER data are are available from several archives: ...

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 ...

Carbon is a fundamental part of the Earth system. It is one of the primary building blocks of all organic matter on Earth and a key element in setting Earth’s temperature. Carbon moves from the ...

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 ...

Nutrients such as nitrogen and phosphorous are not directly measurable with satellite observations. However, satellites can measure chlorophyll concentration, which can act as somewhat of a proxy for ...

The Earth’s surface plays a critical role in the Earth system by interacting with the ocean and the atmosphere. To understand the Earth system, scientists must observe how the Earth’s surface changes ...

The CERES website informs a broad audience about CERES data and products. The CERES team has been collecting ERB data since 1997, when the first CERES instrument was launched aboard the Tropical ...

Dr. Norman Loeb leads a large team dedicated to ensuring the success of CERES, from beginning to end. Loeb says working with and learning from this outstanding group of scientists and engineers has ...