EOL Seminar - Observations of Atmospheric Composition from the Geostationary Satellite Constellation for Air Quality and Climate

Date: 
Tuesday, June 2, 2015 - 15:30 to 16:30
Location: 
FL2-1022
Contact Name: 
Steve Oncley
Contact Email: 
Contact Phone: 
8757

Observations of Atmospheric Composition from the Geostationary Satellite Constellation for Air Quality and Climate


David Edwards


Director, Atmospheric Chemistry Observations & Modeling (ACOM) Laboratory

National Center for Atmospheric Research

 

Advances in tropospheric remote sensing over the past decade have shown the potential of satellite measurements to quantify the sources and distributions of gases important for air quality and climate. However, current satellite observations of tropospheric composition are made from low Earth orbit and provide at best one or two measurements each day at any given location. Coverage is global but sparse, often with large uncertainties in individual measurements that limit examination of local and regional atmospheric composition over short time periods. This has hindered the operational uptake of these data for monitoring air quality and population exposure, and for initializing and evaluating chemical weather forecasts.

By the end of the current decade there are planned geostationary Earth orbit 
(GEO) satellite missions for atmospheric composition over North America, Korea and Europe. Together, these present the possibility of achieving a constellation of platforms to achieve continuous time-resolved high-density observations of continental domains for mapping pollutant sources and variability on diurnal and local scales. In this talk, I will discuss the motivation for going to GEO for atmospheric composition measurements and present some of the science-definition studies that have been performed as part of the NASA Decadal Survey GEO-CAPE project. Finally, I will describe the GEO carbon measurements from the proposed CHRONOS mission over North America.

 

Tuesday, 2 June 2015, 3:30 PM

Refreshments 3:15 PM

NCAR-Foothills Laboratory

3450 Mitchell Lane

Bldg 2 Auditorium (Rm1022)

Seminar will be webcast at http://www.fin.ucar.edu/it/mms/fl-live.htm