NOAA CDR AVHRR: Surface Reflectance, Version 4 (NOAA/CDR/AVHRR/SR/V4)
Version V4
The NOAA Climate Data Record (CDR) of AVHRR Surface Reflectance contains
gridded daily surface reflectance and brightness temperatures derived from
the Advanced Very High Resolution Radiometer (AVHRR) sensors onboard seven
NOAA polar orbiting satellites. The data are gridded at a
resolution of 0.05° and computed globally over land surfaces.
| Name | Description | Gee Wavelength | Gee Scale |
|---|---|---|---|
| SREFL_CH1 | Bidirectional surface reflectance | 640nm | 0.0001 |
| SREFL_CH2 | Bidirectional surface reflectance | 860nm | 0.0001 |
| SREFL_CH3 | Bidirectional surface reflectance | 3.75μm | 0.0001 |
| BT_CH3 | Brightness temperature | 3.75μm | 0.1 |
| BT_CH4 | Brightness temperature | 11.0μm | 0.1 |
| BT_CH5 | Brightness temperature | 12.0μm | 0.1 |
| TIMEOFDAY | Hours since start of day | 0.01 | |
| RELAZ | Relative sensor azimuth angle | 0.01 | |
| SZEN | Solar zenith angle | 0.01 | |
| VZEN | View zenith angle, scale 0.01 | 0.01 | |
| QA | Quality control bit flags |
Providers | |
|---|---|
| NOAA (producer, licensor) | |
| Google Earth Engine (host) | |
| STAC Version | 0.6.0 |
| Keywords | avhrr, cdr, daily, land, noaa, reflectance, sr |
| License | proprietary |
| Temporal Extent | 6/23/1981, 5:00:00 PM - now |
| DOI | https://doi.org/10.7289/V5TM782MM |
| Citation | Eric Vermote, Chris Justice, Ivan Csiszar, Jeff Eidenshink, Ranga Myneni, Frederic Baret, Ed Masuoka, Robert Wolfe, Martin Claverie and NOAA CDR Program (2014): NOAA Climate Data Record (CDR) of AVHRR Surface Reflectance, Version 4. [indicate subset used]. NOAA National Climatic Data Center. |
| Type | image_collection |
| GSD | arc degreesm |
| Platform | NOAA-7 |
| Instrument | AVHRR |
| Cadence | day |
| Asset schema | {"name":"status","description":"'provisional' or 'permanent'\n","type":"STRING"} |