JSM 2004 - Toronto

Abstract #301034

This is the preliminary program for the 2004 Joint Statistical Meetings in Toronto, Canada. Currently included in this program is the "technical" program, schedule of invited, topic contributed, regular contributed and poster sessions; Continuing Education courses (August 7-10, 2004); and Committee and Business Meetings. This on-line program will be updated frequently to reflect the most current revisions.

To View the Program:
You may choose to view all activities of the program or just parts of it at any one time. All activities are arranged by date and time.

The views expressed here are those of the individual authors
and not necessarily those of the ASA or its board, officers, or staff.

Back to main JSM 2004 Program page
Activity Number: 85
Type: Contributed
Date/Time: Monday, August 9, 2004 : 8:30 AM to 10:20 AM
Sponsor: Section on Statistics and the Environment
Abstract - #301034
Title: A Case Study of the Implications of Atmospheric Sonde Data Pre-processing Using "Correction Factors"
Author(s): Wendy Meiring*+
Companies: University of California, Santa Barbara
Address: Statistics and Applied Probability, Santa Barbara, CA, 93105,
Keywords: environmental ; data quality ; ozone ; atmospheric
Abstract:

Atmospheric processes frequently are measured by several instruments, corresponding to a variety of space-time resolutions and sampling schemes. Types of measurement instruments include surface-based, satellite, balloon-based, and airplane-based instruments. Each instrument exhibits its own measurement error processes, with biases that may depend on atmospheric conditions. Atmospheric observations frequently are pre-processed prior to further analysis. For some atmospheric measurements, this pre-processing may involve "correcting" the data from certain instruments to improve agreement with observations from other measuring instruments. In the context of a stratospheric ozone study, we illustrate some of the resulting statistical challenges. We discuss the vital role that analyses of "correction factors" may play in studying data quality, concentrating on a case study of balloon-based ozonesonde data which have been "corrected" based on other instruments. Data pre-processing of this type also has implications for attempts to combine data from different measurement instruments.

  • The address information is for the authors that have a + after their name.
  • Authors who are presenting talks have a * after their name.

Back to the full JSM 2004 program

JSM 2004 For information, contact jsm@amstat.org or phone (888) 231-3473. If you have questions about the Continuing Education program, please contact the Education Department.
Revised March 2004