Daily analyses from 2015 provide atmospheric data on a pair of 65 by 65 polar grids. The dataset includes parameters like pressure, geopotential height, and temperature at four pressure levels. It was operationally prepared by NCEP/CPC using Advanced Microwave Sounding Unit satellite data.
Use Cases
- Analyze daily temperature anomalies at 5, 2, 1, and 0.4 millibar pressure levels over polar regions.
- Model geopotential height variations in the upper stratosphere using the 65x65 polar grid data.
- Study the relationship between pressure and temperature in the lower mesosphere from satellite-derived analyses.
- Track seasonal changes in atmospheric parameters at 12Z daily timestamps for climate research.
Strengths
- Data is provided on a detailed 65 by 65 polar grid for spatial analysis.
- Includes daily observations at a consistent 12Z timestamp for temporal consistency.
- Covers four specific pressure levels (5, 2, 1, 0.4 mb) for vertical profiling.
Limitations
- The dataset's last update was in 2015, making it temporally stale for current atmospheric studies.
- Spatial coverage is limited to polar regions, lacking global context.
- The specific row count and total data volume are unknown, complicating resource planning.
Provenance
- Source
- NCEP/CPC (National Centers for Environmental Prediction / Climate Prediction Center).
- Collection Method
- Operationally prepared using Advanced Microwave Sounding Unit (AMSU) satellite data.
- Time Range
- Specific start date unknown; last updated 2015-06-30.
- Freshness
- Last updated 2015-06-30; update frequency unknown.
- Geography
- Polar regions (Northern and Southern Hemispheres).