Instrument : TSI
Total Sky Imager
Instrument Categories
Cloud Properties
General Overview
The total sky imager (TSI) provides time series of hemispheric sky images during daylight hours and retrievals of fractional sky cover for periods when the solar elevation is greater than 10 degrees. To view current sky cover retrievals at the ARM sites, see the TSI most recent sky images.
Output Datastreams
- tsicldmask : Total Sky Imager (TSI): cloud decision images, PNG format
- tsimovie : Total Sky Imager (TSI): daily movie generated from 30-sec sky image
- tsiskycover : Total Sky Imager (TSI): fractional sky coverage
- tsiskyimage : Total Sky Imager (TSI): sky image (JPEG)
Primary Measurements
The following measurements are those considered scientifically relevant. Refer to the datastream (netCDF) file headers for the list of all available measurements, including those recorded for diagnostic or quality assurance purposes.
Locations
- North Slope Alaska (NSA)
- Central Facility, Barrow AK (C1)
- Southern Great Plains (SGP)
- Central Facility, Lamont, OK (C1)
- Tropical Western Pacific (TWP)
- Central Facility, Darwin, North Australia (C3)
- Central Facility, Manus I., PNG (C1)
- Central Facility, Nauru Island (C2)
- ARM Mobile Facility (FKB)
- Black Forest, Germany (M1)
- ARM Mobile Facility (GRW)
- Graciosa Island, Azores, Portugal (M1)
- ARM Mobile Facility (HFE)
- Shouxian, Anhui, China (M1)
- ARM Mobile Facility (NIM)
- Niamey, Niger (M1)
- ARM Mobile Facility (PYE)
- Point Reyes, CA (M1)
Contact(s)
Victor Morris
(509) 372-6144
victor.morris@pnl.gov
