EOL Seminar: Observations of Water Vapor MPDs (MicroPulse Differential Absorption Lidars) and Their Impact on Convective Weather Forecasting via Data Assimilation

Date: 
Tuesday, February 23, 2021 - 15:30 to 16:30
Location: 
Virtual (Webcast link provided below)
Contact Name: 
Melissa Ward
Contact Email: 
Contact Phone: 
303-497-8713

SPEAKER: Dr. Tammy Weckwerth - NCAR EOL Remote Sensing Facility

DATE: February 23, 2021

Time: 3:30 - 4:30 pm MST

WEBCAST: https://operations.ucar.edu/live-eol

QUESTIONS: Slido will be used to answer your questions during the seminar.

______________________________________________________________________________________________________

ABSTRACT

Lower-tropospheric water vapor measurements are critical for improved understanding and forecast skill of convection initiation and evolution. A relatively new instrument to measure continuous water vapor profiles has been jointly developed by EOL and Montana State University. EOL has three water vapor profiling MPDs (MicroPulse Differential absorption lidars) that will soon be available to the research community. In this presentation, I will describe the MPD system, provide data examples that indicate added value of this measurement system for process studies and discuss relative advantages/disadvantages compared to other thermodynamic profiling systems. I will conclude with a series of data assimilation experiments that have been designed to assess the observational impact of water vapor profiles from these MPDs on the prediction of convective systems.