https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf draft 2025-07-25 https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/DataFormat/e06beaf7-918b-4db7-970f-460f06a1b87f STEP87 Date=2025-12-17 User Id=tstevens User Note=added new data format keyword Date=2025-12-17 User Id=system System Note=Added broader relation from STEP87 [e06beaf7-918b-4db7-970f-460f06a1b87f] to Data Format [8e770fe1-6e82-43aa-9f8a-75d217d7e6cb] This data format was developed for the Stratospheric-Troposphere Exchange Project (STEP) campaign. Data files are standard ASCII text files, and the format was mainly developed for single dimensional data which would later be expanded upon to create the Ames data format. The specifications described in this document grew out of an effort beginning with the 1987 Stratosphere Troposphere Exchange Project (STEP) to put the experimental aircraft data on a medium and in a format that would be accessible to all experiment participants during the field experiment. Flight planning could then take into account the data from a previous flight, increasing the likelihood of meeting the overall goals and objectives of a given campaign. The standards developed for STEP were also used in the 1987 Airborne Antarctic Ozone Experiment (AAOE) and the 1989 Airborne Arctic Stratospheric Expedition (AASE). The basic premise in specifying format standards was to create self-descriptive datasets using a prescribed header structure to contain information about the data in a given file. 2025-12-17T18:40:05.038Z