Research / Campaigns

RHQUAL

Marine ARM GPCI Investigations of Clouds (MAGIC): RH Quality Assurance

1 August 2012 - 30 September 2013

Lead Scientist: R. Reynolds

Observatory: OSC, MAG

Results from the psychrometer measurements for Magic Leg03. Psychrometer spot measurements are compared to the three RH sensors on the ship mast. It was found that corrections of -2% for the Vaisala HMP and +2% for the Vaisala WXT sensors would bring all RH data into agreement.

This program will provide an independent means of assessing RH measurement accuracy. RH is a key quantity in estimating latent heat flux by the method of bulk transfer parameterization. A climate data record seeks RH uncertainties of < 2% rsme. RH sensors are notorious for long term drift and susceptibility to contamination. A clean handheld psychrometer is the best method of checking sensor calibrations. The thermometers are NIST traceable and can be calibrated on a regular basis.

Browse Data

Campaign Links

Field Campaign Report

Related Campaigns

Marine ARM GPCI Investigation of Clouds (MAGIC)

Co-Investigators

Ernie Lewis

Timeline

Campaign Data Sets

IOP Participant	Data Source Name	Final Data
R. Reynolds	RH Quality Assurance (Psychrometer)	Order Data

MAG Data Sources

Name	Full Name	Browse Data
`AOS`	Aerosol Observing System	Browse Data
`AOSMET`	Meteorological Measurements associated with the Aerosol Observing System	Browse Data
`ASSIST`	Atmospheric Sounder Spectrometer for Infrared Spectral Technology	Browse Data
`CCN`	Cloud Condensation Nuclei Particle Counter	Browse Data
`CEIL`	Ceilometer	Browse Data
`CEILPBLHT`	Boundary-layer height data with CEIL	Browse Data
`CEILSHIPCOR`	Ceilometer Corrected for Ship Motion	Browse Data
`CPC`	Condensation Particle Counter	Browse Data
`HSRL`	High Spectral Resolution Lidar	Browse Data
`HSRLSHIPCOR`	HSRL Corrected for Ship Motion	Browse Data
`HTDMA`	Humidified Tandem Differential Mobility Analyzer	Browse Data
`INTERPSONDE`	Interpolated Sonde	Browse Data
`IRT`	Infrared Thermometer	Browse Data
`KAZR`	Ka ARM Zenith Radar	Browse Data
`KAZRSHIPCOR`	KAZR Ship Motion Correction	Browse Data
`MARINEMET`	Marine Surface Meteorological Instrumentation	Browse Data
`MPL`	Micropulse Lidar	Browse Data
`MPLCMASK`	Cloud mask from Micropulse Lidar	Browse Data
`MPLPOLFSSHIPCOR`	MPL Corrected for Ship Motion	Browse Data
`MWACR`	Marine W-Band (95 GHz) ARM Cloud Radar	Browse Data
`MWACRSHIPCOR`	MWACR Ship Motion Correction	Browse Data
`MWR`	Microwave Radiometer	Browse Data
`MWR3C`	Microwave Radiometer, 3 Channel	Browse Data
`MWRRET`	MWR Retrievals	Browse Data
`NAV`	Navigational Location and Attitude	Browse Data
`NAVBE`	Navigational Location and Attitude Best Estimate	Browse Data
`NEPHELOMETER`	Nephelometer	Browse Data
`OZONE`	Ozone Monitor	Browse Data
`PBLHT`	Planetary Boundary Layer Height	Browse Data
`PRP`	Portable Radiation Package	Browse Data
`PSAP`	Particle Soot Absorption Photometer	Browse Data
`RWP`	Radar Wind Profiler	Browse Data
`SASZE`	Shortwave Array Spectroradiometer-Zenith	Browse Data
`SONDE`	Balloon-Borne Sounding System	Browse Data
`SONDEGRID`	Gridded Sonde VAP Product	Browse Data
`S-TABLE`	Stabilized Platform	Browse Data
`TSI`	Total Sky Imager	Browse Data
`UHSAS`	Ultra-High Sensitivity Aerosol Spectrometer	Browse Data