Concept information
Preferred term
STEP
Definition
- The Stratospheric-Troposphere Exchange Project (STEP) has two objectives: (A). Investigate the mechanism and rates of irreversible transfer of mass, trace gases, and aerosols from troposphere to stratosphere and within the lower stratosphere. (B). Explain the observed extreme dryness of the stratosphere. The first objective derives from the need for a better description of how natural and manmade chemicals move from their tropospheric sources to the stratospheric ozone shield. The second objective, though closely related to the first, deserves separate mention because it has been a fundamental mystery of atmospheric science for decades. (en)
Broader concept
- S - U (en)
Change note
- 2021-09-21 08:43:50.0 [tstevens] update Definition (The Stratospheric-Troposphere Exchange Project (STEP) has two objectives: (A). Investigate the mechanism and rates of irreversible transfer of mass, trace gases, and aerosols from troposphere to stratosphere and within the lower stratosphere. (B). Explain the observed extreme dryness of the stratosphere. The first objective derives from the need for a better description of how natural and manmade chemicals move from their tropospheric sources to the stratospheric ozone shield. The second objective, though closely related to the first, deserves separate mention because it has been a fundamental mystery of atmospheric science for decades.); update Definition (https://espo.nasa.gov/step);
URI
https://gcmd.earthdata.nasa.gov/kms/concept/3612107e-c5ff-4e9a-9568-28a1524b385c
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