Wednesday, 17 January 2007
First results from the Measurements Of Humidity in the Atmosphere and Validation Experiment (MOHAVE) Overview of the Campaign and First Results
Exhibit Hall C (Henry B. Gonzalez Convention Center)
Initially in support of the validation of the EOS-Aura satellite water vapor measurements, and on a longer term in the framework of the Network for the Detection of Atmospheric Composition Change (NDACC, formerly NDSC), a new water vapor (WV) Raman lidar was implemented at the Table Mountain Facility (TMF) of the Jet Propulsion Laboratory in California. After more than a year of routine operation, the lidar measurements were validated for the first time using an extensive set of simultaneous and co-located measurements which took place during the Measurements Of Humidity in the Atmosphere and Validation Experiment (MOHAVE) in October 2006. The campaign focused on the comparison of measurements from a total of four co-located WV Raman lidars, Vaisala PTU RS-92K radiosondes, and the NOAA Cryogenic Frost-point Hygrometer. Three additional tropospheric and stratospheric ozone lidars, several ozonesondes and a water vapor microwave instrument complemented the measurements. The variability of tropospheric water vapor above TMF, accuracies of the various measuring techniques, repeatability of the radiosondes, and the calibration stability and accuracy of the lidars are the main topics investigated and will be presented at the meeting.