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 ...

For 25 years, NASA’s Flagship Earth Observing System satellite, Terra, has collected daily morning Earth observations using five different instruments: ASTER, CERES, MISR, MODIS, and MOPITT.

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 ...

Contents of this section contain information useful to data users when called on to create presentations. Information about data sets, supporting documents, presentations, and resources with rich ...

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 ...

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

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 ...

Terra collects data about the Earth’s bio-geochemical and energy systems using five sensors that observe the atmosphere, land surface, oceans, snow and ice, and energy budget. Each sensor has unique ...

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 ...

Climate is the sum of weather over time, the average temperatures and rainfall of a place. Earth’s climate—how hot our planet is on average—is set by the Sun. Anything that changes the amount of solar ...

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 ...

It’s all a matter of perspective: measuring rain from the ground. Citizen scientists can contribute much to the understanding of rainfall patterns by reporting precipitation totals at their location.