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C1

NSA - Central Facility, Barrow AK

Established
11 December 1997
Latitude
71.323° N
Longitude
156.615° W
Altitude
8 meters
Surface Type
Tundra
Instruments
44 (28 active)
Primary Measurement Types
51 (40 active)

The C1 facility, located near the city of Barrow, officially known as Utqiaġvik, Alaska, was installed in July 1997. Utqiaġvik is located at the northernmost point in the United States, 330 miles north of the Arctic Circle.

Also known as the “Top of the World,” Utqiaġvik is Alaska’s largest Eskimo village. Tax revenue from the local oil fields pays for services boroughwide, and natural gas is used to heat homes and generate electricity in Utqiaġvik. Many residents maintain traditional lifestyles. Subsistence foods include whale, seal, polar bear, walrus, duck, caribou, grayling, and whitefish.

The Utqiaġvik facility includes a trailer and several platforms to support the instrumentation and data system. ARM operates many of the same instruments, including a 35 GHz cloud radar, that are located at its warmer sites. However, many of these instruments have been hardened to withstand frigid temperatures ranging from -20 to 40 °F.

Click to enlarge images.

NSA Instrument Platform Panorama

Radar Wind Profiler Instrument Platform

Welcome to Barrow, officially known as Utqiaġvik

Instruments deployed at NSA - Central Facility, Barrow AK

aeri

Atmospheric Emitted Radiance Interferometer

1998-02-22 — Currently Deployed

Browse Data

asi

All Sky Imager

2024-05-09 — Currently Deployed

Browse Data

caminst

camera that monitors an instrument

2020-06-08 — Currently Deployed

Browse Data

camsite

camera that monitors a site area

2001-06-20 — Currently Deployed

Browse Data

ceil

Ceilometer

1997-12-11 — Currently Deployed

Browse Data

ceilpblht

Boundary-layer height data with CEIL

2013-08-05 — Currently Deployed

Browse Data

csphot

Sunphotometer

1997-07-30 — Currently Deployed

Browse Data

dl

Doppler Lidar

2014-07-30 — Currently Deployed

Browse Data

gndrad

Ground Radiometers on Stand for Upwelling Radiation

1998-04-06 — Currently Deployed

Browse Data

gvrp

G-band (183 GHz) Vapor Radiometer Profiler

2008-04-01 — Currently Deployed

Browse Data

irt

Infrared Thermometer

1999-12-31 — Currently Deployed

Browse Data

kazr

Ka ARM Zenith Radar

2011-05-12 — Currently Deployed

Browse Data

ldis

Laser Disdrometer

2017-04-27 — Currently Deployed

Browse Data

masc

Multi-Angle Snowflake Camera

2018-10-23 — Currently Deployed

Browse Data

maws

Automatic Weather Station

2019-06-10 — Currently Deployed

Browse Data

met

Surface Meteorological Instrumentation

2003-10-31 — Currently Deployed

Browse Data

mpl

Micropulse Lidar

1998-05-21 — Currently Deployed

Browse Data

mwr

Microwave Radiometer

1998-01-02 — Currently Deployed

Browse Data

mwr3c

Microwave Radiometer, 3 Channel

2021-06-16 — Currently Deployed

Browse Data

precipip

Precipitation Imaging Package

2018-10-23 — Currently Deployed

Browse Data

sirs

Solar and Infrared Radiation Station for Downwelling and Upwelling Radiation

2024-07-18 — Currently Deployed

Browse Data

skyrad

Sky Radiometers on Stand for Downwelling Radiation

1998-02-14 — Currently Deployed

Browse Data

sonde

Balloon-Borne Sounding System

1970-01-01 — Currently Deployed

Browse Data

sonicwind

ultrasonic wind sensor

2003-10-31 — Currently Deployed

Browse Data

spmf

Solid Particles Mass Flux Sensor

2018-09-30 — Currently Deployed

Browse Data

srs

Sonic Ranging Sensor

2017-04-29 — Currently Deployed

Browse Data

twr

Facility-specific multi-level Meteorological Instrumentation

2003-10-31 — Currently Deployed

Browse Data

xsapr

X-Band Scanning ARM Precipitation Radar

2011-06-24 — Currently Deployed

Browse Data

Primary Measurements collected at NSA - Central Facility, Barrow AK

Aerosol optical depth

Browse Data

Aerosol optical properties

Browse Data

Atmospheric moisture

Browse Data

Atmospheric pressure

Browse Data

Atmospheric temperature

Browse Data

Backscattered radiation

Browse Data

Cloud base height

Browse Data

Cloud fraction

Browse Data

Horizontal wind

Browse Data

Hydrometeor Size Distribution

Browse Data

Hydrometeor concentration

Browse Data

Hydrometeor fall velocity

Browse Data

Hydrometeor image

Browse Data

Instrument monitoring non-geophysical variables

Browse Data

Lidar Doppler

Browse Data

Lidar polarization

Browse Data

Liquid water path

Browse Data

Longwave broadband downwelling irradiance

Browse Data

Longwave broadband upwelling irradiance

Browse Data

Longwave narrowband brightness temperature

Browse Data

Longwave spectral brightness temperature

Browse Data

Longwave spectral radiance

Browse Data

Microwave narrowband brightness temperature

Browse Data

Particle number concentration

Browse Data

Particle size distribution

Browse Data

Planetary boundary layer height

Browse Data

Precipitable water

Browse Data

Precipitation

Browse Data

Radar Doppler

Browse Data

Radar polarization

Browse Data

Radar reflectivity

Browse Data

Shortwave broadband diffuse downwelling irradiance

Browse Data

Shortwave broadband direct normal irradiance

Browse Data

Shortwave broadband total downwelling irradiance

Browse Data

Shortwave broadband total upwelling irradiance

Browse Data

Shortwave narrowband radiance

Browse Data

Shortwave spectral radiance

Browse Data

Snow depth

Browse Data

Vertical velocity

Browse Data

Visibility

Browse Data
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Atmospheric Radiation Measurement (ARM) | Reviewed March 2025