Daily averaged estimates of Downward Longwave Irradiance reaching the Earth's surface, expressed in W/m2. The data is derived from AVHRR instruments on NOAA and Metop polar-orbiting satellites and delivered on a 5km polar stereographic grid. The product is produced by EUMETSAT.
Use Cases
- Analyze temporal trends in surface longwave radiation using daily averaged irradiance values over the Atlantic high latitudes.
- Validate climate model outputs for polar regions against satellite-derived irradiance observations on a 5km grid.
- Study the relationship between sea ice extent and surface longwave radiation using the geospatial irradiance data.
- Correlate downward longwave irradiance with other atmospheric variables like cloud cover or temperature from different datasets.
Strengths
- Data is derived from multiple operational polar-orbiting satellite missions (NOAA and Metop), ensuring continuity.
- Spatial resolution is specified as a 5km polar stereographic grid.
Limitations
- The specific temporal coverage and total number of data records are unknown.
- The dataset is geographically limited to the Atlantic High Latitudes region.
Provenance
- Source
- EUMETSAT
- Collection Method
- Derived from Advanced Very High Resolution Radiometer (AVHRR) instruments on NOAA and Metop satellites.
- Time Range
- null
- Freshness
- null
- Geography
- Atlantic High Latitudes, on a 5km polar stereographic grid.