@prefix ns0: . @prefix skos: . ns0:altLabel [ ] ; skos:definition """The AVHRR five channel scanning radiometer with 1.1-km resolution is sensitive in the visible and near-infrared, and the infrared 'window' regions. This instrument will be carried through NOAA-J, NOAA-K, L and M and will have a similar instrument with six channels and other improvements. AVHRR data are tape-recorded onboard the spacecraft for readout at the Fairbanks and Wallops Command Data Acquisition stations. These data can be recorded in 1.1-km resolution (the basic resolution of the AVHRR instrument) or at 4 km resolution; the swath width is >2600 km. The stored high resolution (1.1-km) imagery is known as Local Area Coverage (LAC). Owing to the large number of data bits, only about 11+ minutes of LAC can be accommodated on a single recorder. In contrast, 115 minutes of the lower resolution (4-km) imagery, called Global Area Coverage (GAC), can be stored on a recorder, enough to cover an entire 102 minute orbit of data. Channel Wavelength Primary Uses (microns) ------- ----------- ----------------------------- 1 0.58- 0.68 Daytime cloud/surface mapping 2 0.725- 1.10 Surface water delineation, ice and snow melt 3 3.55- 3.93 Sea surface temperature, nighttime cloud mapping 4 10.30-11.30 Sea surface temperature, day and night cloud mapping 5 11.50-12.50 Sea surface temperature, day and night cloud mapping ------------------------------------------------------ Additional information available at: http://noaasis.noaa.gov/NOAASIS/ml/avhrr.html"""@en ; skos:prefLabel "AVHRR"@en ; skos:inScheme ; skos:broader ; a skos:Concept . skos:prefLabel "Imaging Spectrometers/Radiometers"@en ; a skos:Concept ; skos:narrower .