NASA is about to begin a multi-year airborne science campaign to investigate unexplored regions of the upper atmosphere and how its chemistry is changing Earth in a warming climate.
The Tropical TRopopause EXperiment (ATTREX) mission will give scientists the information they will need to better understand and predict this phenomenon.
A NASA Global Hawk high-altitude unmanned aircraft will fly missions at up to 65,000 feet altitude above the tropical Pacific Ocean, carrying a suite of specialized instruments to measure moisture and chemical composition, radiation levels, meteorological conditions, and trace gas levels. Scientists hope to collected unprecedented data from the tropopause, the boundary between the troposhere (where most weather occurs) and the stratosphere.
An instrument checkout flight was scheduled to be flown over the Edwards Air Force Base, Calif., test range from NASA’s Dryden Flight Research Center Jan.18, 2013, with a half-dozen science flights lasting up to 24 to 30 hours each planned over the ensuring two months during the first year of the ATTREX campaign.
A team of scientists from four NASA centers, the National Oceanic and Atmospheric Administration, the National Center for Atmospheric Research, academia and private industry led by principal investigator Eric Jensen and project manager Dave Jordan of NASA’s Ames Research Center checked out their instruments during upload operations over a two-month period prior to the first ATTREX flight.