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Retrieval of Carbon Dioxide Vertical Profiles from Solar Occultation Observations and Associated Error Budgets for Ace-fts and Cass-fts : Volume 7, Issue 7 (22/07/2014)

By Sioris, C. E.

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Book Id: WPLBN0003999413
Format Type: PDF Article :
File Size: Pages 20
Reproduction Date: 2015

Title: Retrieval of Carbon Dioxide Vertical Profiles from Solar Occultation Observations and Associated Error Budgets for Ace-fts and Cass-fts : Volume 7, Issue 7 (22/07/2014)  
Author: Sioris, C. E.
Volume: Vol. 7, Issue 7
Language: English
Subject: Science, Atmospheric, Measurement
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2014
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Sutton, K. J., Walker, K. A., Sioris, C. E., Gordon, I. E., Nassar, R., Bernath, P. F., & Boone, C. D. (2014). Retrieval of Carbon Dioxide Vertical Profiles from Solar Occultation Observations and Associated Error Budgets for Ace-fts and Cass-fts : Volume 7, Issue 7 (22/07/2014). Retrieved from http://www.ebooklibrary.org/


Description
Description: Department of Earth and Space Science and Engineering, York University, Toronto, ON, Canada. An algorithm is developed to retrieve the vertical profile of carbon dioxide in the 5 to 25 km altitude range using mid-infrared solar occultation spectra from the main instrument of the ACE (Atmospheric Chemistry Experiment) mission, namely the Fourier transform spectrometer (FTS). The main challenge is to find an atmospheric phenomenon which can be used for accurate tangent height determination in the lower atmosphere, where the tangent heights (THs) calculated from geometric and timing information are not of sufficient accuracy. Error budgets for the retrieval of CO2 from ACE-FTS and the FTS on a potential follow-on mission named CASS (Chemical and Aerosol Sounding Satellite) are calculated and contrasted. Retrieved THs have typical biases of 60 m relative to those retrieved using the ACE version 3.x software after revisiting the temperature dependence of the N2 CIA (collision-induced absorption) laboratory measurements and accounting for sulfate aerosol extinction. After correcting for the known residual high bias of ACE version 3.x THs expected from CO2 spectroscopic/isotopic inconsistencies, the remaining bias for tangent heights determined with the N2 CIA is −20 m. CO2 in the 5–13 km range in the 2009–2011 time frame is validated against aircraft measurements from CARIBIC (Civil Aircraft for the Regular Investigation of the atmosphere Based on an Instrument Container), CONTRAIL (Comprehensive Observation Network for Trace gases by Airline), and HIPPO (HIAPER Pole-to-Pole Observations), yielding typical biases of −1.7 ppm in the 5–13 km range. The standard error of these biases in this vertical range is 0.4 ppm. The multi-year ACE-FTS data set is valuable in determining the seasonal variation of the latitudinal gradient which arises from the strong seasonal cycle in the Northern Hemisphere troposphere. The annual growth of CO2 in this time frame is determined to be 2.6 ± 0.4 ppm year−1, in agreement with the currently accepted global growth rate based on ground-based measurements.

Summary
Retrieval of carbon dioxide vertical profiles from solar occultation observations and associated error budgets for ACE-FTS and CASS-FTS

Excerpt
Baker, D. F., Law, R. M., Gurney, K. R., Rayner, P., Peylin, P., Denning, A. S., Bousquet, P., Bruhwiler, L., Chen, Y.-H., Ciais, P., Fung, I. Y., Heimann, M., John, J., Maki, T., Maksyutov, S., Masarie, K., Prather, M., Pak, B., Taguchi, S., and Zhu, Z.: TransCom 3 inversion intercomparison: Impact of transport model errors on the interannual variability of regional CO2 fluxes, 1988–2003, Global Biogeochem. Cy., 20, GB1002, <a href=http://dx.doi.org/10.1029/2004GB002439>doi:10.1029/2004GB002439a>, 2006.; Baranov, Y. I., Buryak, I. A., Lokshtanov, S. E., Lukyanchenko, V. A., and Vigasin, A. A.: H2O-N2 collision-induced absorption band intensity in the region of the N2 fundamental ab initio investigation of its temperature dependence, Phil. Trans. R. Soc. A, 370, 2691–2709, 2012.; Beagley, S. R., Boone, C. D., Fomichev, V. I., Jin, J. J., Semeniuk, K., McConnell, J. C., and Bernath, P. F.: First multi-year occultation observations of CO2 in the MLT by ACE satellite: observations and analysis using the extended CMAM, Atmos. Chem. Phys., 10, 1133–1153, <a href=http://dx.doi.org/10.5194/acp-10-1133-2010>doi:10.5194/acp-10-1133-2010a>, 2010.; Berk, A., Anderson, G. P., Acharya, P. K., Bernstein, L. S., Muratov, L., Lee, J., Fox, M., Adler-Golden, S. M., Chetwynd, J. H., Hoke, M. L., Lockwood, R. B., Gardner, J. A., Cooley, T. W., Borel, C. C., and Lewis, P. E.: MODTRANTM 5, A reformulated atmospheric band model with auxiliary species and practical multiple scattering options: Update, Proc. SPIE 5806, 662–667, 2005.; Boone, C. D., Nassar, R., Walker, K. A., Rochon, Y., McLeod, S. D., Rinsland, C. P., and Bernath, P. F.: Retrievals for the atmospheric chemistry experiment Fourier-transform spectrometer, Appl. Opt., 44, 7218–7231, 2005.; Boone, C. D., Walker, K. A., and Bernath, P. F.: Version 3 retrievals for the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS), in: The Atmospheric Chemistry Experiment ACE at 10, A Solar Occultation Anthology, edited by: Bernath, P. F., A. Deepak Publishing, Hampton, VA, 103–127, 2013.; Châteauneuf, F., Soucy, M.-A., and Fortin, S.: ACE-FTS instrument: after two years on-orbit, Proc. SPIE, 5883, <a href=http://dx.doi.org/10.1117/12.626663>doi:10.1117/12.626663a>, 2005.; Clapp, M. L., Niedziela, R. F., Richwine, L. J., Dransfield, T., and Miller, R. E., and Worsnop, D. R.: Infrared spectroscopy of sulfuric acid/water aerosols: Freezing characteristics, J. Geophys. Res., 102, 8899–8907, 1997.; Côté, J., Desmarais, J.-G., Gravel, S., Méthot, A., Patoine, A., Roch, M., and Staniforth, A.: The Operational CMC–MRB Global Environmental Multiscale (GEM) Model, Part II: Results, Mon. Weather Rev., 126, 1397–1418, 1998.; Daube, B. C., Boering, K. A., Andrews, A. E., and Wofsy, S. C.: A high-precision fast-response airborne CO2 analyzer for in situ sampling from the surface to the middle stratosphere, J. Atmos. Oceanic Technol., 19, 1532–1543, 2002.; Doeringer, D., Eldering, A., Boone, C. D., González Abad, G., and Bernath, P. F.: Observation of sulfate aerosols and SO2 from the Sarychev volcanic eruption using data from the Atmospheric Chemistry Experiment (ACE), J. Geophys. Res., 117, D03203, <a href=http://dx.doi.org/10.1029/2011JD016556>doi:10.1029/2011JD016556a>, 2012.; Emmert, J. T., Stevens, M. H., Bernath, P. F., Drob, D. P., and Boone, C. D.: Observations of increasing carbon dioxide concentration in Earth's thermosphere, Nat. Geosci., 5, 868–871, 2012.; Fischer, H., Birk, M., Blom, C., Carli, B., Carlotti, M., von Clarmann, T., Delbouille, L., Dudhia, A., Ehhalt, D., Endemann, M., Flaud, J. M., Gessner, R., Kleinert, A., Koopman, R., Langen, J., López-Puertas, M., Mosner, P., Nett, H., Oelhaf, H., Perron, G., Remedios, J., Ridolfi, M., Stiller


 

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