Accession Number : ADA296674

Title :   Calibration History of Some Rotronic MP-1OO and Vaisala Humicap Relative Humidity Sensors.

Descriptive Note : Technical rept.,

Corporate Author : WOODS HOLE OCEANOGRAPHIC INSTITUTION MA

Personal Author(s) : Payne, Richard E.

PDF Url : ADA296674

Report Date : SEP 1994

Pagination or Media Count : 37

Abstract : An analysis has been made of the calibrations done during 1990 through 1994 on Rotronic MP-1OO relative humidity sensors (used in the Improved METeorological (IMET) system) and sensors built at the Woods Hole Oceanographic Institution (WHOl) with the Vaisala Humicap sensing element (used in the Vector Averaging Wind Recorder (VAWR)). The shift from one calibration to the next is, typically, 2-3% RH which represents the major uncertainty in relative humidity with either of these sensors. The direction of each shift appears to be random; thus, there does not appear to be any long-term drifts.

Descriptors :   *METEOROLOGICAL DATA, *CALIBRATION, UNCERTAINTY, DETECTORS, WIND, LONG RANGE(TIME), DRIFT, HISTORY, VECTOR ANALYSIS, RECORDING SYSTEMS, MEAN, HUMIDITY, HYGROMETERS.

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE