The National Geodetic Survey (NGS) has issued a “Kinematic GPS Challenge” to the community in support of NGS’ airborne gravity data collection program, called Gravity for the Redefinition of the ...
No audio available for this content. On October 1, the U.S. federal government shut down and furloughed 800,000 non-essential workers. While services considered essential remained active, those ...
Respondent error, low resolution, and study participant burden are known limitations of diary timelines used in exposure studies such as the National Human Exposure Assessment Survey (NHEXAS). Recent ...
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