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RISDevelopment and Validation of a Time-Lag Correction for Vaisala Radiosonde Humidity Measurements
Publisher: American Meteorological Society
Abstract: This study presents a method of improving the accuracy of relative humidity (RH) measurements from Vaisala RS80 and RS90 radiosondes by applying sensor-based corrections for well-understood sources of measurement error. ...
Evolution of Water Vapor Concentrations and Stratospheric Age of Air in Coupled Chemistry-Climate Model Simulations
Publisher: American Meteorological Society
Abstract: Stratospheric water vapor concentrations and age of air are investigated in an ensemble of coupled chemistry-climate model simulations covering the period from 1960 to 2005. Observed greenhouse gas concentrations, halogen ...
Evaluation of Humidity Correction Methods for Vaisala RS92 Tropical Sounding Data
Publisher: American Meteorological Society
Abstract: his study examines the DigiCORA and Global Climate Observing System Reference Upper-Air Network (GRUAN) humidity corrections of Vaisala RS92 radiosondes at three sites over the tropical Indian Ocean and surrounding areas ...
Characterization and Correction of Relative Humidity Measurements from Vaisala RS80-A Radiosondes at Cold Temperatures
Publisher: American Meteorological Society
Abstract: Radiosonde relative humidity (RH) measurements are known to be unreliable at cold temperatures. This study characterizes radiosonde RH measurements from Vaisala RS80-A thin-film capacitive sensors in the temperature range ...
Radiation Dry Bias Correction of Vaisala RS92 Humidity Data and Its Impacts on Historical Radiosonde Data
Publisher: American Meteorological Society
Abstract: he Vaisala RS92 radiosonde is the most widely used type of sonde in the current global radiosonde network. One of the largest biases in the RS92 humidity data is its daytime solar radiation dry bias (SRDB). An algorithm ...
Investigation of Hydrostatic Imbalance with Field Observations
Publisher: American Meteorological Society
Performance of the Meteolabor “Snow White” Chilled-Mirror Hygrometer in the Tropical Troposphere: Comparisons with the Vaisala RS80 A/H-Humicap Sensors
Publisher: American Meteorological Society
Abstract: The ?Snow White? hygrometer is a low-cost, chilled-mirror hygrometer for radiosonde applications provided by a Swiss company, Meteolabor AG. A total of 54 Snow White soundings were conducted at five tropical stations in ...
The NCAR–NOAA Global Hawk Dropsonde System
Publisher: American Meteorological Society
Abstract: AbstractA new remotely controlled Airborne Vertical Atmospheric Profiling System (AVAPS) dropsonde system has been developed for and deployed on the NASA Global Hawk (GH) unmanned aircraft. Design, fabrication, and operation ...
Reference Upper-Air Observations for Climate: Rationale, Progress, and Plans
Publisher: American Meteorological Society
Abstract: While the global upper-air observing network has provided useful observations for operational weather forecasting for decades, its measurements lack the accuracy and long-term continuity needed for understanding climate ...
Airborne and Ground-Based Measurements Using a High-Performance Raman Lidar
Publisher: American Meteorological Society
Abstract: A high-performance Raman lidar operating in the UV portion of the spectrum has been used to acquire, for the first time using a single lidar, simultaneous airborne profiles of the water vapor mixing ratio, aerosol backscatter, ...