HATPRO-SUNHAT

Principle

SUNHAT is a humidity and temperature profiler (HATPRO) manufactured by RPG. It measures 7 brightness temperatures in the water vapor line (22.24 GHz) and 7 in the oxygen complex (60 GHz), the former brightness temperatures are used for water vapor profiling, the latter for temperature profiling. Measurements around the water vapor line are used to derive integrated water vapor (IWV) and integrated liquid water (LWP) content.
SUNHAT is now deployed at the Barbados cloud observatory and performing synchronous measurements with a scanning Ka-band polarized Doppler cloud radar. Synergetic measurements of SUNHAT, the cloud radar and the other instruments deployed at the Barbados site are used to study shallow cumulus clouds forming in the trade-wind of North Atlantic.

Instrument


RPG HATPRO-SUNHAT at the Barbados Clouds Observatory.

History

Period Place Project
11/2013 - today Barbados Cloud Observatory, Barbados ITaRS
04/2013 - 07/2013 Research Center Jülich, Germany HOPE
12/2010 - 2012 Barbados HALO
08/2008 - 07/2010 Research Center Jülich, Germany TR32
04 - 08/2008 Selhausen, Germany TR32
04 - 12/2007 Heselbach, Germany COPS

Data

  • If you are interested in receiving data please contact: U. Löhnert

Specifications

Parameter Specification
Receiver 1 water vapor and liquid water absorption
Frequencies [GHz] 22.24, 23.04, 23.84, 25.44, 26.24, 27.84, 31.40
Channel band-widths [MHz] 230, 230, 230, 230, 230, 230, 230
Optical Resolution (HPBW) 3.3°-3.7°
Receiver 2 oxygen absorption
Frequencies [GHz] 51.26, 52.28, 53.86, 54.94, 56.66, 57.30, 58.00
Channel band-widths [MHz] 230, 230, 230, 230, 600, 1000, 2000
Optical Resolution (HPBW) 2.2°- 2.5°
Pointing Resolution 0.6° (elevation), 0.1° (azimuth)
Side-lobe level < -30 dBc
Size 630 mm x 360 mm x 900 mm
Power Consumption <120 W (350 W peak)
Weight 60 kg
Temporal resolution 1-2 seconds
Manufacturer RPG
instruments/sunhat/sunhat.txt · Last modified: 2016/04/07 19:52 (external edit)
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