Instrument : Total Sky Imager (TSI)

Instrument Categories
Cloud Properties

Picture of the Total Sky Imager (TSI)

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.

Locations

Eastern North Atlantic
ENAC1Browse DataGraciosa Island, Azores, Portugal
North Slope Alaska
NSAC1Browse DataCentral Facility, Barrow AK
NSAX1Browse DataExternal Data (satellites and others)
Southern Great Plains
SGPC1Browse DataCentral Facility, Lamont, OK
Tropical Western Pacific
TWPC1Browse DataCentral Facility, Manus I., PNG
TWPC2Browse DataCentral Facility, Nauru Island
TWPC3Browse DataCentral Facility, Darwin, Australia
ARM Mobile Facility
FKBM1Browse DataBlack Forest, Germany
GANM1Browse DataGan Airport, Gan Island, Maldives
GRWM1Browse DataGraciosa Island, Azores, Portugal
HFEM1Browse DataShouxian, Anhui, China
MAGM1Browse DataLos Angeles, CA to Honolulu, HI - container ship Horizon Spirit
MAOM1Browse DataManacapuru, Amazonas, Brazil; AMF1
NIMM1Browse DataNiamey, Niger
OLIM1Browse DataOliktok Point, Alaska
PGHM1Browse DataARIES Observatory, Nainital, Uttarkhand, India
PVCM1Browse DataHighland Center, Cape Cod MA; AMF 1
PYEM1Browse DataPoint Reyes, CA
SBSM1Browse DataSteamboat Springs CO, Valley Site
TMPM1Browse DataU. of Helsinki Research Station (SMEAR II), Hyytiala, Finland; AMF2

Contact(s)

Victor Morris
(509) 372-6144
victor.morris@pnnl.gov