Instrument : Vaisala Ceilometer (VCEIL)

Beneficiary of Recovery Act funding.

Instrument Categories
Cloud Properties

Picture of the Vaisala Ceilometer (Model CL31)
Picture of the Vaisala Ceilometer (Model CL31)

General Overview

The Vaisala Ceilometer (VCEIL) is a self-contained, ground-based, active, remote-sensing device designed to measure cloud-base height, vertical visibility, and potential backscatter signals by aerosols. It detects up to three cloud layers simultaneously. Model CL31 has a maximum vertical range of 7700 m. The laser ceilometer transmits near-infrared pulses of light and the receiver detects the light scattered back by clouds and precipitation.

Output Datastreams

  • vceil25k : Vaisala Ceilometer (VCEIL): cloud base heights, 25,000 feet max range

Primary Measurements

The following measurements are those considered scientifically relevant.

Locations

  • North Slope Alaska (NSA)
    • Central Facility, Atqasuk AK (C2)
    • Central Facility, Barrow AK (C1)
  • Southern Great Plains (SGP)
    • Central Facility, Lamont, OK (C1)
    • Hillsboro, KS (Boundary) (B1)
    • Morris, OK (Boundary) (B5)
    • Purcell, OK (B6)
    • Vici, OK (Boundary) (B4)
  • Tropical Western Pacific (TWP)
    • Central Facility, Darwin, Australia (C3)
    • Central Facility, Manus I., PNG (C1)
    • Central Facility, Nauru Island (C2)
  • ARM Mobile Facility (FKB)
    • Black Forest, Germany (M1)
  • ARM Mobile Facility (GAN)
    • Gan Airport, Gan Island, Maldives (M1)
  • ARM Mobile Facility (GRW)
    • Graciosa Island, Azores, Portugal (M1)
  • ARM Mobile Facility (HFE)
    • Shouxian, Anhui, China (M1)
    • Tai Hu (lake), Zhejiang/Jiangsu, China; Supplemental (S1)
  • ARM Mobile Facility (MAG)
    • Los Angeles, CA to Honolulu, HI - container ship Horizon Spirit (M1)
  • ARM Mobile Facility (NIM)
    • Niamey, Niger (M1)
  • ARM Mobile Facility (PGH)
    • ARIES Observatory, Nainital, Uttarkhand, India (M1)
  • ARM Mobile Facility (PVC)
    • Highland Center, Cape Cod MA; AMF 1 (M1)
  • ARM Mobile Facility (PYE)
    • Point Reyes, CA (M1)
  • ARM Mobile Facility (SBS)
    • Steamboat Springs CO, Valley Site (M1)

Contact(s)

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