Development of an End-to-End Simulation Testbed for Atmospheric Remote Sensing Measurements: Application to Determining the Impact of LIDAR-based CO2 Column Measurements on Regional Carbon Flux Estimates
Abstract
AER and ITT have been using a system engineering approach to develop an end-to-end testbed for simulating sensor performance and science impact of measurements from air- and space-borne platforms. The remote sensing part of this testbed couples atmospheric profile data from NWP models and operational satellite-based cloud analyses to a line-by-line radiative transfer model. This provides maximum flexibility in the choice of spectral wavelengths, from the microwave through the visible, enables the sensor system simulations for a global range of atmospheric conditions, and provides realistic simulations of the measurements, including orbital paths, anticipated cloud-cover, atmospheric variability and sensor noise. As part of our end-to-end approach, the remote sensing simulation data can be used directly by regional- and global-scale models to assess the science impact of the data products within a particular data assimilation scheme. This presentation will describe the application of this testbed to atmospheric carbon dioxide measurements in support of the Active Sensing of CO2 Emissions over Nights, Days, and Seasons (ASCENDS) mission. To this end we have simulated differential absorption lidar (DIAL) measurements and coupled the results to a regional top-down carbon flux model in an effort to assess the impact of the proposed measurement system on regional CO2 flux estimates.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2007
- Bibcode:
- 2007AGUFM.A13D1517Z
- Keywords:
-
- 0322 Constituent sources and sinks;
- 1640 Remote sensing (1855);
- 3315 Data assimilation;
- 3360 Remote sensing