EOL Seminar: Estimating observation and model error variances using multiple data sets

Date: 
Monday, February 20, 2017 - 03:30 to 04:30
Contact Name: 
Holger Vomel
Contact Email: 
Contact Phone: 
303-497-8837

Estimating observation and model error variances using multiple data sets

Dr. Richard Anthes
UCAR President Emeritus

In this paper we show how multiple data sets, including observations and models, can be combined using the “N- cornered hat method” to estimate vertical profiles of the errors of each system. Using data from 2007, we estimate the error variances of radio occultation, radiosondes, ERA-Interim and GFS model data sets at four radiosonde locations in the tropics and subtropics. A key assumption is the neglect of error covariances among the different data sets, and we examine the consequences of this assumption on the resulting error estimates.


Tuesday, 20 February 2018, 3:30 PM
Refreshments 3:15 PM
NCAR-Foothills Laboratory
3450 Mitchell Lane
Bldg 2 Large Auditorium (Rm1022)

Webcast: https://ucarconnect.ucar.edu/live (Room 2: FL2-1022)