Data · collection
Extended Advanced Very High Resolution Radiometer Polar Pathfinder Satellite Product
Listed in NASA Earthdata CMR
This data set consists of AVHRR retrievals of surface and cloud properties as well as radiative fluxes for the period 1982 - 1999 over the Arctic and Antarctic at a 25 km resolution.
Description
The images times are 1400 and 0400 (Arctic) or 0200 (Antarctic) local solar times. Resulsts are calculated on a twice-daily basis, but only monthly mean images and area-averaged values are currently online.
The standard AVHRR Polar Pathfinder (APP) product includes gridded radiances, viewing and illumination geometry, clear sky surface temperature and albedo, and three cloud masks at a 5 km resolution. We have extended the standard APP product to include all-sky surface temperature, all-sky surface albedo, cloud properties (particle phase, effective radius, optical depth, temperature and pressure), and radiative fluxes as well as cloud radiative effect ("forcing").
Read the rest (1 more)
We refer to this dataset as APP-x.
Links
Get the data
- stratus.ssec.wisc.edu /products/appx/appx.html ↗
Access the "Extended AVHRR Polar Pathfinder" data.
download · from NASA CMR
- GET DATA usap-data.org/entry/Extended_AVHRR_Polar_Pathfinder ↗
download · from NASA CMR
Documentation and papers
- VIEW RELATED INFORMATION stratus.ssec.wisc.edu ↗
documentation · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214614879-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214614879-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Advanced Very High Resolution Radiometer · Cloud Optical Depth/Thickness · Cloud Radiative Forcing · Net Radiation · NOAA Polar Orbiting Environmental Satellites · Radiative Flux
- Inferred from text
- Atmospheric sciences 71% · Image 65%
Provenance · 1 source records, 14 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214614879-SCIOPS | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3701 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (71%) |
| concepts[instrument].gcmd_instrument:avhrr | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-radiation/net-radiation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-radiation/radiative-flux | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/clouds/cloud-microphysics/cloud-optical-depth-thickness | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/clouds/cloud-radiative-transfer/cloud-radiative-forcing | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[platform].gcmd_platform:noaa-poes | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |