Accuracy of the IMET Sensor Package in the Subtropics

• DOI: 10.1175/2009jtecho667.1
• Publication Date: 2009-07-13T20:09:55Z
• Authors: Keir Colbo; Robert A. Weller
• Keywords: Longwave; Shortwave; Momentum (technical analysis); Shortwave radiation

Abstract The accuracies of the meteorological sensors (air temperature, relative humidity, barometric pressure, near-surface longwave and shortwave radiation, wind speed direction) that compose Improved Meteorological (IMET) system used on buoys at long-term ocean time series sites known as reference stations (ORS) are analyzed to determine their absolute error characteristics. predicted errors compared in situ measurement discrepancies other observations (direct flux shipboard sensors) confirm predictions. then propagated through bulk formulas Coupled Ocean–Atmosphere Response Experiment (COARE) algorithm give for heat components, freshwater flux, momentum flux. Absolute presented three frequency bands [instantaneous (1-min sampling), diurnal, annual]. uncertainty annually averaged net is found be 8 W m−2 conditions similar current ORS deployments subtropics.