Record (CDR) of global infrared measurements from geostationary satellites.
\nThe geostationary satellite data (GridSat-B1) provides data from 3
channels: the CDR-quality infrared window (IRWIN) channel (near 11μm),
the visible channel (near 0.6μm) and the infrared water vapor (IRWVP)
channel (near 6.7μm). The GridSat-B1 data is projected onto a global
0.07 degree latitude equal-angle grid with date coverage spanning from
1980-present. This data is sourced from the 3-hourly International Satellite
Cloud Climatology Project (ISCCP) B1 data. The satellites included in this
dataset with their longitudinal coverage over time can be seen here.
In regions of overlap the CDR methodology merges satellites by selecting
the nadir-most observations for each grid point.
Version V2
This dataset provides a high quality Climate Data
Record (CDR) of global infrared measurements from geostationary satellites.
The geostationary satellite data (GridSat-B1) provides data from 3
channels: the CDR-quality infrared window (IRWIN) channel (near 11μm),
the visible channel (near 0.6μm) and the infrared water vapor (IRWVP)
channel (near 6.7μm). The GridSat-B1 data is projected onto a global
0.07 degree latitude equal-angle grid with date coverage spanning from
1980-present. This data is sourced from the 3-hourly International Satellite
Cloud Climatology Project (ISCCP) B1 data. The satellites included in this
dataset with their longitudinal coverage over time can be seen here.
In regions of overlap the CDR methodology merges satellites by selecting
the nadir-most observations for each grid point.
Name | Description | Gee Unit | Gee Scale | Gee Offset |
---|---|---|---|---|
irwin_cdr | Brightness temperature near 11μm, nadir-most observation | K | 0.01 | 200 |
irwin_2 | Brightness temperature near 11μm, second-best observation (based on view zenith angle) | K | 0.01 | 200 |
irwin_3 | Brightness temperature, third-best observation based on view zenith angle | K | 0.01 | 200 |
irwvp | Brightness temperature near 6.7μm, nadir-most observation | K | 0.01 | 200 |
irwvp_2 | Brightness temperature near 6.7μm, second-best observation based on view zenith angle | K | 0.01 | 200 |
vschn | Visible reflectance near 0.6μm, nadir-most observation | 0.00004 | 1 | |
vschn_2 | Visible reflectance near 0.6μm, second-best observation based on view zenith angle | 0.00004 | 1 | |
irwin_vza_adj | Adjustment made to all IRWIN channels. Provided to allow users to reverse the view zenith correction for the irwin_cdr variable. | K | 0.25 | -10 |
satid_ir1 | satid values for irwin_cdr. For this and other satid bands, the mappings of satid to satellite name are given in the properties for each image | |||
satid_ir2 | satid values per pixel for irwin_2 | |||
satid_ir3 | satid values per pixel for irwin_3 | |||
satid_wv1 | satid values per pixel for irwvp | |||
satid_wv2 | satid values per pixel for irwvp2 | |||
satid_vs1 | satid values per pixel for vischn | |||
satid_vs2 | satid values per pixel for vischn2 |
Providers | |
---|---|
NOAA (producer, licensor) | |
Google Earth Engine (host) | |
STAC Version | 0.6.0 |
Keywords | ISCCP, brightness, cdr, fundamental, geostationary, infrared, noaa, reflectance, sr |
License | proprietary |
Temporal Extent | 12/31/1979, 4:00:00 PM - now |
DOI | https://doi.org/10.7289/V59P2ZKR |
Citation | Kenneth R. Knapp, and NOAA CDR Program (2014): NOAA Climate Data Record (CDR) of Gridded Satellite Data from ISCCP B1 (GridSat-B1) 11 micron Brightness Temperature, Version 2. [indicate subset used]. NOAA National Climatic Data Center. [doi:10.7289/V59P2ZKR](https://doi.org/10.7289/V59P2ZKR) [access date]. |
Type | image_collection |
GSD | arc degreesm |
Cadence | hours |
Asset schema | {"name":"satid_0","description":"Satellite name (see notes)","type":"STRING"},{"name":"satid_1","description":"Satellite name (see notes)","type":"STRING"},{"name":"satid_2","description":"Satellite name (see notes)","type":"STRING"},{"name":"satid_3","description":"Satellite name (see notes)","type":"STRING"},{"name":"satid_4","description":"Satellite name (see notes)","type":"STRING"},{"name":"satid_5","description":"Satellite name (see notes)","type":"STRING"} |