Microwave brightness temperature data was collected at 0.5-second intervals using a two-channel radiometer during the June 1992 ASTEX field campaign. The dataset captures energy transfer between the ocean and atmosphere to validate satellite flux integrations. It was produced by French research groups under the SOFIA program and archived by NASA's LARC_ASDC.
Use Cases
- Validate satellite-derived heat and humidity flux estimates by comparing them with high-resolution 23.8 GHz and 36.5 GHz microwave brightness temperature measurements.
- Study the spatial inhomogeneity of ocean-atmosphere energy transfer by analyzing time-series data collected during the June 1992 campaign in the eastern North Atlantic.
- Improve general circulation model (GCM) parameterizations for marine stratocumulus clouds using direct radiometric observations of atmospheric boundary layer properties.
- Investigate mesoscale oceanic and atmospheric structures by examining the nested-box flux measurement strategy data from the SOFIA program.
Strengths
- High temporal resolution with a basic sampling rate of 0.5 seconds.
- Data collected during a coordinated, intensive field observation period (IFO) combining satellite, airborne, and surface measurements.
- Calibration was performed prior to the campaign and verified on June 12, 1995.
Limitations
- Temporal coverage is limited to a single month (June 1992).
- Spatial coverage is restricted to the eastern North Atlantic Ocean during the ASTEX campaign.
- The specific number of data rows, file formats, and column details are unknown.
Provenance
- Source
- LARC_ASDC (NASA). Data collected by French research groups (CRPE, LA, CMM, IFREMER, Service d'Aeronomie, LMD) under the SOFIA program.
- Collection Method
- Data collected using a DRAKKAR upward-pointing two-channel microwave radiometer (23.8 and 36.5 GHz) deployed during the ASTEX field campaign.
- Time Range
- June 1992 (specifically the ASTEX IFO from June 1-28, 1992).
- Freshness
- null
- Geography
- Eastern North Atlantic Ocean.