edu.ucar.opensky::articles:17733 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-26T03:01:11.724353 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d70g3mn2 https://doi.org https Related Dataset #1 NCEP ADP Global Upper Air and Surface Weather Observations (PREPBUFR format), May 1997 - Continuing Assessing the impacts of assimilating IASI and MOPITT CO retrievals using CESM-CAM-chem and DART 2015-10-16T00:00:00Z publication https://n2t.org/ark:/85065/d70g3mn2 https://doi.org/10.1002/2015JD023467 Barré, Jérôme author Gaubert, Benjamin author Arellano, A. author Worden, Helen M. author Edwards, David P. author Deeter, Merritt N. author Anderson, Jeffrey L. author Raeder, Kevin D. author Collins, Nancy S. author Tilmes, Simone author Francis, Gene author Clerbaux, C. author Emmons, Louisa K. author Pfister, Gabriele author Coheur, P. author Hurtmans, D. author UCAR/NCAR - Library publisher We show the results and evaluation with independent measurements from assimilating both MOPITT (Measurements Of Pollution In The Troposphere) and IASI (Infrared Atmospheric Sounding Interferometer) retrieved profiles into the Community Earth System Model (CESM). We used the Data Assimilation Research Testbed ensemble Kalman filter technique, with the full atmospheric chemistry CESM component Community Atmospheric Model with Chemistry. We first discuss the methodology and evaluation of the current data assimilation system with coupled meteorology and chemistry data assimilation. The different capabilities of MOPITT and IASI retrievals are highlighted, with particular attention to instrument vertical sensitivity and coverage and how these impact the analyses. MOPITT and IASI CO retrievals mostly constrain the CO fields close to the main anthropogenic, biogenic, and biomass burning CO sources. In the case of IASI CO assimilation, we also observe constraints on CO far from the sources. During the simulation time period (June and July 2008), CO assimilation of both instruments strongly improves the atmospheric CO state as compared to independent observations, with the higher spatial coverage of IASI providing better results on the global scale. However, the enhanced sensitivity of multispectral MOPITT observations to near surface CO over the main source regions provides synergistic effects at regional scales. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright 2015 American Geophysical Union. None eng geoscientificInformation