c2

twp - Central Facility, Nauru Island

Established

1998-01-01

Removed

2013-09-15

Latitude

0.521° S

Longitude

166.916° E

Altitude

7 meters

Surface Type

Limestone, exposed coral reef, coconut palms, pandanus trees, hardwoods

Instruments

15 (0 active)

Primary Measurement Types

31 (0 active)

Click to enlarge images.

ARM Instrument Shelter	ARM Facility on Nauru Island
Karst Remains from Historic Phosphate Mining	Nauru Island’s Western Shoreline

The C2 site for ARM’s Tropical Western Pacific (TWP) began operations in 1998 on Nauru Island, officially known as the Republic of Nauru. Nauru shows the highest climatic variability in outgoing longwave radiation in the world and is located on the eastern edge of the Pacific warm pool, which plays a large role in the interannual variability observed in the global climate system.

Instruments deployed at TWP - Central Facility, Nauru Island

Atmospheric Emitted Radiance Interferometer

1998-11-04 - 2009-02-12

Ceilometer

1998-10-28 - 2013-09-09

Sunphotometer

1999-06-14 - 2013-09-15

Ground Radiometers on Stand for Upwelling Radiation

1998-10-24 - 2013-09-09

Infrared Thermometer

2012-05-29 - 2013-09-09

Surface Meteorological Instrumentation

1998-10-21 - 2013-09-09

Multifilter Rotating Shadowband Radiometer

1998-10-30 - 2013-09-09

Shortwave narrowband total downwelling irradiance

Shortwave narrowband direct normal irradiance

Shortwave narrowband diffuse downwelling irradiance

Shortwave broadband total downwelling irradiance

Shortwave broadband diffuse downwelling irradiance

Millimeter Wavelength Cloud Radar

1998-10-22 - 2009-02-14

Micropulse Lidar

1998-11-06 - 2009-02-13

Microwave Radiometer

1998-10-28 - 2013-09-09

Microwave Radiometer, 3 Channel

2012-09-13 - 2013-09-09

Sky Radiometers on Stand for Downwelling Radiation

1998-10-27 - 2013-09-09

Balloon-Borne Sounding System

1998-11-05 - 2013-08-26

Total Sky Imager

2002-11-11 - 2013-09-09

Whole Sky Imager

1999-06-23 - 2002-04-27

Primary Measurements collected at twp - Central Facility, Nauru Island

Aerosol optical depth

Aerosol optical properties

Atmospheric moisture

Atmospheric pressure

Atmospheric temperature

Backscattered radiation

Cloud base height

Cloud fraction

Horizontal wind

Liquid water path

Longwave broadband downwelling irradiance

Longwave broadband upwelling irradiance

Longwave narrowband brightness temperature

Longwave spectral brightness temperature

Longwave spectral radiance

Microwave narrowband brightness temperature

Particle number concentration

Particle size distribution

Precipitable water

Radar Doppler

Radar reflectivity

Shortwave broadband diffuse downwelling irradiance

Shortwave broadband direct normal irradiance

Shortwave broadband total downwelling irradiance

Shortwave narrowband diffuse downwelling irradiance

Shortwave narrowband direct normal irradiance

Shortwave narrowband radiance

Shortwave narrowband total downwelling irradiance

Shortwave spectral radiance

Vertical velocity

Visibility