First characterization and validation of FORLI-HNO3 vertical profiles retrieved from IASI/Metop

Ronsmans, G.; Langerock, B.; Wespes, C.; Hannigan, J. W.; Hase, F.; Kerzenmacher, T.; Mahieu, Emmanuel; Schneider, M.; Smale, D.; Hurtmans, D.; De Mazière, M.; Clerbaux, C.; Coheur, P.-F.

doi:10.5194/amt-9-4783-2016

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First characterization and validation of FORLI-HNO3 vertical profiles retrieved from IASI/Metop

Ronsmans, G.; Langerock, B.; Wespes, C. et al.

2016 • In Atmospheric Measurement Techniques, 16, p. 4783-4801

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10.5194/amt-9-4783-2016

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Keywords :

atmospheric monitoring; remote-sensing; nitric acid

Abstract :

[en] Knowing the spatial and seasonal distributions of nitric acid (HNO3) around the globe is of great interest to apprehend the processes regulating stratospheric ozone, especially in the polar regions. Thanks to its unprecedented spatial and temporal sampling, the nadir-viewing Infrared Atmospheric Sounding Interferometer (IASI) allows sounding the atmosphere twice a day globally, with good spectral resolution and low noise. With the Fast Optimal Retrievals on Layers for IASI (FORLI) algorithm, we are retrieving, in near-real time, columns as well as vertical profiles of several atmospheric species, amongst which is HNO3. We present in this paper the first characterization of the FORLI-HNO3 profile products, in terms of vertical sensitivity and error budgets. We show that the sensitivity of IASI to HNO3 is highest in the lower stratosphere (10–20km), where the largest amounts of HNO3 are found, but that the vertical sensitivity of IASI only allows one level of information on the profile (DOFS 1). The sensitivity near the surface is negligible in most cases, and for this reason, a partial column (5–35km) is used for the analyses. Both vertical profiles and partial columns are compared to FTIR ground-based measurements from the Network for the Detection of Atmospheric Composition Change (NDACC) to characterize the accuracy and precision of the FORLI-HNO3 product. The profile validation is conducted through the smoothing of the raw FTIR profiles by the IASI averaging kernels and gives good results, with a slight overestimation of IASI measurements in the Upper Troposphere-Lower Stratosphere (UTLS) at the 6 chosen stations (Thule, Kiruna, Jungfraujoch, Izaña, Lauder and Arrival Heights). The validation of the partial columns (5–35km) is also conclusive with a mean correlation of 0.93 between IASI and the FTIR measurements. An initial survey of the HNO3 spatial and seasonal variabilities obtained from IASI measurements for a one year (2011) data set shows that the expected latitudinal gradient of concentrations from low to high latitudes and the large seasonal variability in polar regions (cycle amplitude around 30% of the seasonal signal, peak-to-peak) are well represented with IASI data.

Disciplines :

Earth sciences & physical geography

Author, co-author :

Ronsmans, G.

Langerock, B.

Wespes, C.

Hannigan, J. W.

Hase, F.

Kerzenmacher, T.

Mahieu, Emmanuel ; Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)

Schneider, M.

Smale, D.

Hurtmans, D.

More authors (3 more)

Language :

English

Title :

First characterization and validation of FORLI-HNO3 vertical profiles retrieved from IASI/Metop

Publication date :

27 September 2016

Journal title :

Atmospheric Measurement Techniques

ISSN :

1867-1381

eISSN :

1867-8548

Publisher :

Copernicus, Katlenburg-Lindau, Germany

Volume :

Pages :

4783-4801

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://www.atmos-meas-tech.net/9/4783/2016/

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since 06 July 2016

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Bibliography

Antón, M., Loyola, D., Clerbaux, C., López, M., Vilaplana, J. M., Bañón, M., and Alados-Arboledas, L.: Validation of the MetOp-A total ozone data from GOME-2 and IASI using reference ground-based measurements at the Iberian Peninsula, Remote Sens. Environ., 115, 1380-1386, doi:10.1016/j.rse.2011.01.018, 2011.
August, T., Klaes, D., Schlüssel, P., Hultberg, T., Crapeau, M., Arriaga, A., and Calbet, X.: IASI on Metop-A: Operational Level 2 retrievals after five years in orbit, J. Quant. Spectrosc. Ra., 13, 1340-1371, doi:10.1016/j.jqsrt.2012.02.028, 2012.
Austin, J., Garcia, R. R., Russell, J. M., Solomon, S., and Tuck, A. F.: On the Atmospheric Photochemistry of Nitric Acid, J. Geophys. Res., 91, 5477-5485, doi:10.1029/JD091iD05p05477, 1986.
Blumenstock, T., Kopp, G., Hase, F., Hochschild, G., Mikuteit, S., Raffalski, U., and Ruhnke, R.: Observation of unusual chlorine activation by ground-based infrared and microwave spectroscopy in the late Arctic winter 2000/01, Atmos. Chem. Phys., 6, 897-905, doi:10.5194/acp-6-897-2006, 2006.
Boynard, A., Hurtmans, D., Koukouli, M. E., Goutail, F., Bureau, J., Safieddine, S., Lerot, C., Hadji-Lazaro, J., Wespes, C., Pommereau, J.-P., Pazmino, A., Zyrichidou, I., Balis, D., Barbe, A., Mikhailenko, S. N., Loyola, D., Valks, P., Van Roozendael, M., Coheur, P.-F., and Clerbaux, C.: Seven years of IASI ozone retrievals from FORLI: validation with independent total column and vertical profile measurements, Atmos. Meas. Tech., 9, 4327-4353, doi:10.5194/amt-9-4327-2016, 2016.
Cayla, F.-R.: L'interféromètre IASI: Un nouveau sondeur satellitaire à haute résolution, La Météorologie, 8, 23-39, 2001.
Chipperfield, M.: Atmospheric science: Nitrous oxide delays ozone recovery, Nat. Geosci., 2, 742-743, doi:10.1038/ngeo678, 2009.
Clerbaux, C. and Crevoisier, C.: New Directions: Infrared remote sensing of the troposphere from satellite: Less, but better, Atmos. Environ., 72, 24-26, doi:10.1016/j.atmosenv.2013.01.057, 2013.
Clerbaux, C., Boynard, A., Clarisse, L., George, M., Hadji-Lazaro, J., Herbin, H., Hurtmans, D., Pommier, M., Razavi, A., Turquety, S., Wespes, C., and Coheur, P.-F.: Monitoring of atmospheric composition using the thermal infrared IASI/MetOp sounder, Atmos. Chem. Phys., 9, 6041-6054, doi:10.5194/acp-9-6041-2009, 2009.
Cooper, M., Martin, R. V, Wespes, C., Coheur, P.-F., Clerbaux, C., and Murray, L. T.: Tropospheric nitric acid columns from the IASI satellite instrument interpreted with a chemical transport model: Implications for parametrizations of nitric oxide production by lightning, J. Geophys. Res., 119, 68-79, doi:10.1002/2014JD021907, 2014.
Crevoisier, C., Chédin, A., Matsueda, H., Machida, T., Armante, R., and Scott, N. A.: First year of upper tropospheric integrated content of CO2 from IASI hyperspectral infrared observations, Atmos. Chem. Phys., 9, 4797-4810, doi:10.5194/acp-9-4797-2009, 2009.
Crevoisier, C., Nobileau, D., Armante, R., Crépeau, L., Machida, T., Sawa, Y., Matsueda, H., Schuck, T., Thonat, T., Pernin, J., Scott, N. A., and Chédin, A.: The 2007-2011 evolution of tropical methane in the mid-troposphere as seen from space by MetOp-A/IASI, Atmos. Chem. Phys., 13, 4279-4289, doi:10.5194/acp-13-4279-2013, 2013.
Crevoisier, C., Clerbaux, C., Guidard, V., Phulpin, T., Armante, R., Barret, B., Camy-Peyret, C., Chaboureau, J.-P., Coheur, P.-F., Crépeau, L., Dufour, G., Labonnote, L., Lavanant, L., Hadji-Lazaro, J., Herbin, H., Jacquinet-Husson, N., Payan, S., Péquignot, E., Pierangelo, C., Sellitto, P., and Stubenrauch, C.: Towards IASI-New Generation (IASI-NG): impact of improved spectral resolution and radiometric noise on the retrieval of thermodynamic, chemistry and climate variables, Atmos. Meas. Tech., 7, 4367-4385, doi:10.5194/amt-7-4367-2014, 2014.
Crutzen, P. J.: The Role of NO and NO2 in the chemistry of the troposphere and stratosphere, Annu. Rev. Earth Planet. Sc., 7, 443-472, doi:10.1146/annurev.ea.07.050179.002303, 1979.
Drdla, K. and Müller, R.: Temperature thresholds for polar stratospheric ozone loss, Atmos. Chem. Phys. Discuss., 10, 28687-28720, doi:10.5194/acpd-10-28687-2010, 2010.
Dufour, G., Eremenko, M., Griesfeller, A., Barret, B., LeFlochmoën, E., Clerbaux, C., Hadji-Lazaro, J., Coheur, P.-F., and Hurtmans, D.: Validation of three different scientific ozone products retrieved from IASI spectra using ozonesondes, Atmos. Meas. Tech., 5, 611-630, doi:10.5194/amt-5-611-2012, 2012.
Fiorucci, I., Muscari, G., Froidevaux, L., and Santee, M. L.: Ground-based stratospheric O3 and HNO3 measurements at Thule, Greenland: an intercomparison with Aura MLS observations, Atmos. Meas. Tech., 6, 2441-2453, doi:10.5194/amt-6-2441-2013, 2013.
Fischer, H., Waibel, A. E., Welling, M., Wienhold, F. G., Zenker, T., Crutzen, P. J., and Siegmund, P. C.: Observations of high concentration of total reactive nitrogen (NOy ) and nitric acid (HNO3) in the lower Arctic stratosphere during the Stratosphere-Troposphere Experiment by Aircraft Measurements (STREAM) II campaign in February 1995, J. Geophys. Res., 102, 23559, doi:10.1029/97JD02012, 1997.
Flaud, J.-M., Brizzi, G., Carlotti, M., Perrin, A., and Ridolfi, M.: MIPAS database: Validation of HNO3 line parameters using MIPAS satellite measurements, Atmos. Chem. Phys., 6, 5037-5048, doi:10.5194/acp-6-5037-2006, 2006.
García, O. E., Schneider, M., Redondas, A., González, Y., Hase, F., Blumenstock, T., and Sepúlveda, E.: Investigating the longterm evolution of subtropical ozone profiles applying groundbased FTIR spectrometry, Atmos. Meas. Tech., 5, 2917-2931, doi:10.5194/amt-5-2917-2012, 2012.
Gazeaux, J., Clerbaux, C., George, M., Hadji-Lazaro, J., Kuttippurath, J., Coheur, P.-F., Hurtmans, D., Deshler, T., Kovilakam, M., Campbell, P., Guidard, V., Rabier, F., and Thépaut, J.-N.: Intercomparison of polar ozone profiles by IASI/MetOp sounder with 2010 Concordiasi ozonesonde observations, Atmos. Meas. Tech., 6, 613-620, doi:10.5194/amt-6-613-2013, 2013.
George, M., Clerbaux, C., Hurtmans, D., Turquety, S., Coheur, P.-F., Pommier, M., Hadji-Lazaro, J., Edwards, D. P., Worden, H., Luo, M., Rinsland, C., and McMillan,W.: Carbon monoxide distributions from the IASI/METOP mission: evaluation with other space-borne remote sensors, Atmos. Chem. Phys., 9, 8317-8330, doi:10.5194/acp-9-8317-2009, 2009.
Gobbi, G. P., Deshler, T., Adriani, A., and Hofmann, D. J.: Evidence for denitrification in the 1990 Antarctic spring stratosphere: I, Lidar and temperature measurements, Geophys. Res. Lett., 18, 1995-1998, doi:10.1029/91GL02310, 1991.
Gomez, L., Tran, H., Perrin, A., Gamache, R. R., Laraia, A., Orphal, J., and Hartmann, J. M.: Some improvements of the HNO3 spectroscopic parameters in the spectral region from 600 to 950 cm-1, J. Quant. Spectrosc. Ra., 110, 675-686, doi:10.1016/j.jqsrt.2008.07.004, 2009.
Hannigan, J.W., Coffey, M. T., and Goldman, A.: Semiautonomous FTS observation system for remote sensing of stratospheric and tropospheric gases, J. Atmos. Ocean. Technol., 26, 1814-1828, doi:10.1175/2009JTECHA1230.1, 2009.
Hase, F., Blumenstock, T., and Paton-Walsh, C.: Analysis of the instrumental line shape of high-resolution Fourier transform IR spectrometers with gas cell measurements and new retrieval software, Appl. Optics, 38, 3417-3422, doi:10.1364/AO.38.003417, 1999.
Hase, F., Hannigan, J. W., Coffey, M. T., Goldman, A., Höpfner, M., Jones, N. B., and Wood, S. W.: Intercomparison of retrieval codes used for the analysis of high-resolution, groundbased FTIR measurements, J. Quant. Spectrosc. Ra., 7, 25-52, doi:10.1016/j.jqsrt.2003.12.008, 2004.
Hilton, F., Armante, R., August, T., Barnet, C., Bouchard, A., Camy-Peyret, C., and Zhou, D.: Hyperspectral Earth Observation from IASI: Five Years of Accomplishments, B. Am. Meteorol. Soc., 93, 347-370, doi:10.1175/BAMS-D-11-00027.1, 2012.
Höpfner, M., Luo, B. P., Massoli, P., Cairo, F., Spang, R., Snels, M., Di Donfrancesco, G., Stiller, G., von Clarmann, T., Fischer, H., and Biermann, U.: Spectroscopic evidence for NAT, STS, and ice in MIPAS infrared limb emission measurements of polar stratospheric clouds, Atmos. Chem. Phys., 6, 1201-1219, doi:10.5194/acp-6-1201-2006, 2006.
Hurtmans, D., Coheur, P.-F., Wespes, C., Clarisse, L., Scharf, O., Clerbaux, C., and Turquety, S.: FORLI radiative transfer and retrieval code for IASI, J. Quant. Spectrosc. Ra., 113, 1391-1408, doi:10.1016/j.jqsrt.2012.02.036, 2012.
Jucks, K. W., Johnson, D. G., Chance, K. V., Traub, W. A.,and Salawitch, R. J.: Nitric acid in the middle stratosphere as a function of altitude and aerosol loading, J. Geophys. Res., 104, 26715, doi:10.1029/1999JD900330, 1999.
Kasibhatla, P. S., Levy II, H., and Moxim, W. J.: Global NOx, HNO3, PAN, and NOy Distributions From Fossil Fuel Combustion Emissions: A Model Study, J. Geophys. Res., 98, 7165-7180, doi:10.1029/92JD02845, 1993.
Kerzenmacher, T., Dils, B., Kumps, N., Blumenstock, T., Clerbaux, C., Coheur, P.-F., Demoulin, P., García, O., George, M., Griffith, D. W. T., Hase, F., Hadji-Lazaro, J., Hurtmans, D., Jones, N., Mahieu, E., Notholt, J., Paton-Walsh, C., Raffalski, U., Ridder, T., Schneider, M., Servais, C., and De Mazière, M.: Validation of IASI FORLI carbon monoxide retrievals using FTIR data from NDACC, Atmos. Meas. Tech., 5, 2751-2761, doi:10.5194/amt-5-2751-2012, 2012.
Lambert, A., Santee, M. L., Wu, D. L., and Chae, J. H.: A-train CALIOP and MLS observations of early winter Antarctic polar stratospheric clouds and nitric acid in 2008, Atmos. Chem. Phys., 12, 2899-2931, doi:10.5194/acp-12-2899-2012, 2012.
Logan, J. A.: Nitrogen oxides in the troposphere: Global and Regional Budgets, J. Geophys. Res., 8, 10785-10807, doi:10.1029/JC088iC15p10785, 1983.
Logan, J. A., Prather, M. J., Wofsy, S. C., and Mc Elroy, M. B.: Tropospheric chemistry: A global perspective, J. Geophys. Res., 86, 7210-7254, doi:10.1029/JC086iC08p07210, 1981.
Lowe, D. and MacKenzie, A. R.: Polar stratospheric cloud microphysics and chemistry, J. Atmos. Sol.-Terr. Phy., 70, 13-40, doi:10.1016/j.jastp.2007.09.011, 2008.
Mahieu, E., Zander, R., Delbouille, L., Demoulin, P., Roland, G., and Servais, C.: Observed trends in total vertical column abundances of atmospheric gases from IR solar spectra recorded at the Jungfraujoch, J. Atmos. Chem., 2, 227-243, doi:10.1023/A:1005854926740, 1997.
Manney, G. L., Santee, M. L., Rex, M., Livesey, N. J., Pitts, M. C., Veefkind, P., and Zinoviev, N. S.: Unprecedented Arctic ozone loss in 2011, Nature, 478, 469-475, doi:10.1038/nature10556, 2011.
McElroy, M. B., Elkins, J. W., Wofsy, S. C., and Yung, Y. L.: Sources and sinks for atmospheric N2O, Rev. Geophys. Space Ge., 14, 143-150, doi:10.1029/RG014i002p00143, 1976.
Mohanakumar, K.: Stratosphere Troposphere Interactions-An Introduction, Springer, Netherlands, doi:10.1007/978-1-4020-8217-7, 2008.
Muller, R.: Stratospheric Ozone Depletion and Climate Change, Roy. Soc. Ch., doi:10.1039/9781849733182, 2011.
Murcray, D. G., Kyle, T. G., Murcray, F. H., and Williams, W. J.: Nitric Acid and Nitrix Oxide in the Lower Stratospher, Nature, 218, 78-79, doi:10.1038/218078a0, 1968.
Neuman, J. A., Gao, R. S., Fahey, D. W., Holecek, J. C., Ridley, B. A.,Walega, J. G., and Ray, E. A.: In situ measurements of HNO3, NOy, NO, and O3 in the lower stratosphere and upper troposphere. Atmos. Environ., 35, 5789-5797, doi:10.1016/S1352-2310(01)00354-5, 2001.
Orsolini, Y. J., Urban, J., and Murtagh, D. P.: Nitric acid in the stratosphere based on Odin observations from 2001 to 2009-Part 2: High-altitude polar enhancements, Atmos. Chem. Phys., 9, 7045-7052, doi:10.5194/acp-9-7045-2009, 2009.
Piccolo, C. and Dudhia, A.: Precision validation of MIPAS-Envisat products, Atmos. Chem. Phys., 7, 1915-1923, doi:10.5194/acp-7-1915-2007, 2007.
Portmann, R. W., Daniel, J. S., and Ravishankara, A. R.: Stratospheric ozone depletion due to nitrous oxide: influences of other gases, Philos. T. R. Soc. Lond., 367, 1256-1264, doi:10.1098/rstb.2011.0377, 2012.
Pougatchev, N. S., Connor, B. J., and Rinsland, C. P.: Infrared measurements of the ozone vertical distribution above Kitt Peak, J. Geophys. Res., 100, 16689-16697, doi:10.1029/95JD01296, 1995.
Rinsland, C. P., Zander, R., and Demoulin, P.: Ground-based infrared measurements of HNO3 total column abundances: Longterm trend and variability, J. Geophys. Res., 96, 9379-9389, doi:10.1029/91JD00609, 1991.
Rinsland, C. P., Gunson, M. R., Salawitch, R. J., Michelsen, H. A., Zander, R., Newchurch, M. J., and Mahieu, E.: ATMOS/ATLAS-3 measurements of stratospheric chlorine and reactive nitrogen partitioning inside and outside the November 1994 Antarctic Vortex, Geophys. Res. Lett., 23, 2365-2368, doi:10.1029/96GL01474, 1996.
Rinsland, C. P., Jones, N. B., Connor, B. J., Logan, J. A., Pougatchev, N., Goldman, A., and Demoulin, P.: Northern and Southern Hemisphere Ground-Based Infrared Spectroscopic Measurements of Tropospheric Carbon Monoxide and Ethane, J. Geophys. Res., 103, 28197-28217, doi:10.1029/98JD02515, 1998.
Rodgers, C. D.: Inverse Methods for Atmospheric Sounding-Theory and Practice, Series on Atmospheric Oceanic and Planetary Physics, Vol. 2, World Scientific Publishing Co. Pte. Ltd, doi:10.1142/9789812813718, 2000.
Rodgers, C. D. and Connor, B. J.: Intercomparison of remote sounding instruments, J. Geophys. Res., 108, 4116, doi:10.1029/2002JD002299, 2003.
Rothman, L. S., Jacquemart, D., Barbe, A., Benner, D. C., Birk, M., Brown, L. R., and Wagner, G.: The HITRAN 2004 molecular spectroscopic database, J. Quant. Spectrosc. Ra., 96, 139-204, doi:10.1016/j.jqsrt.2004.10.008, 2005.
Rothman, L. S., Gordon, I. E., Barbe, A., Benner, D. C., Bernath, P. F., Birk, M., and Vander Auwera, J.: The HITRAN 2008 molecular spectroscopic database, J. Quant. Spectrosc. Ra., 110, 533-572, doi:10.1016/j.jqsrt.2009.02.013, 2009.
Santee, M. L., Manney, G. L., Froidevaux, L., Read,W. G., andWaters, J. W.: Six years of UARS Microwave Limb Sounder HNO3 observations?: Seasonal, interhemispheric, and interannual variations in the lower stratosphere, J. Geophys. Res., 104, 8225-8246, doi:10.1029/1998JD100089, 1999.
Santee, M. L., Manney, G. L., Livesey, N. J., and Read, W. G.: Three-dimensional structure and evolution of stratospheric HNO3 based on UARS microwave limb sounder measurements, J. Geophys. Res.-Atmos., 109, 1-19, doi:10.1029/2004JD004578, 2004.
Santee, M. L., Manney, G. L., Livesey, N. J., Froidevaux, L., MacKenzie, I. A., Pumphrey, H. C., and Harwood, R. S.: Polar processing and development of the 2004 Antarctic ozone hole: First results from MLS on Aura, Geophys. Res. Lett., 32, 1-4, doi:10.1029/2005GL022582, 2005.
Santee, M. L., Lambert, A., Read, W. G., Livesey, N. J., Cofield, R. E., Cuddy, D. T., and Murtagh, D.: Validation of the Aura Microwave Limb Sounder HNO3 measurements, J. Geophys. Res., 112, 1-22, doi:10.1029/2007JD008721, 2007.
Schneider, M., Blumenstock, T., Chipperfield, M. P., Hase, F., Kouker, W., Reddmann, T., Ruhnke, R., Cuevas, E., and Fischer, H.: Subtropical trace gas profiles determined by ground-based FTIR spectroscopy at Izaña (28° N, 16° W): Five-year record, error analysis, and comparison with 3-D CTMs, Atmos. Chem. Phys., 5, 153-167, doi:10.5194/acp-5-153-2005, 2005.
Solomon, S.: Stratospheric ozone depletion: A review of concepts and history, Rev. Geophys., 37, 275-316, doi:10.1029/1999RG900008, 1999.
Staehelin, J., Harris, N. R. P., Appenzeller, C., and Eberhard, J.: Ozone trends: A review, Rev. Geophys., 39, 231-290, doi:10.1029/1999RG000059, 2001.
Tabazadeh, A., Santee, M. L., Danilin, M., Pumphrey, H. C., Newman, P. A., Hamill, P. J., and Mergenthaler, J. L.: Quantifying Denitrification and its effects on Ozone recovery, Science, 288, 1407-1411, doi:10.1126/science.288.5470.1407, 2000.
Urban, J., Pommier, M., Murtagh, D. P., Santee, M. L., and Orsolini, Y. J.: Nitric acid in the stratosphere based on Odin observations from 2001 to 2009-Part 1: A global climatology, Atmos. Chem. Phys., 9, 7031-7044, doi:10.5194/acp-9-7031-2009, 2009.
Van Damme, M., Clarisse, L., Heald, C. L., Hurtmans, D., Ngadi, Y., Clerbaux, C., Dolman, A. J., Erisman, J. W., and Coheur, P. F.: Global distributions, time series and error characterization of atmospheric ammonia (NH3) from IASI satellite observations, Atmos. Chem. Phys., 14, 2905-2922, doi:10.5194/acp-14-2905-2014, 2014.
Vigouroux, C., De Mazière, M., Errera, Q., Chabrillat, S., Mahieu, E., Duchatelet, P., Wood, S., Smale, D., Mikuteit, S., Blumenstock, T., Hase, F., and Jones, N.: Comparisons between groundbased FTIR and MIPAS N2O and HNO3 profiles before and after assimilation in BASCOE, Atmos. Chem. Phys., 7, 377-396, doi:10.5194/acp-7-377-2007, 2007.
von Clarmann, T.: Chlorine in the stratosphere, Atmosfera, 26, 415-458, doi:10.1038/353707a0, 2013.
Wang, D. Y., Höpfner, M., Blom, C. E., Ward, W. E., Fischer, H., Blumenstock, T., Hase, F., Keim, C., Liu, G. Y., Mikuteit, S., Oelhaf, H., Wetzel, G., Cortesi, U., Mencaraglia, F., Bianchini, G., Redaelli, G., Pirre, M., Catoire, V., Huret, N., Vigouroux, C., De Mazière, M., Mahieu, E., Demoulin, P., Wood, S., Smale, D., Jones, N., Nakajima, H., Sugita, T., Urban, J., Murtagh, D., Boone, C. D., Bernath, P. F., Walker, K. A., Kuttippurath, J., Kleinböhl, A., Toon, G., and Piccolo, C.: Validation of MIPAS HNO3 operational data, Atmos. Chem. Phys., 7, 4905-4934, doi:10.5194/acp-7-4905-2007, 2007.
Wegner, T., Grooß, J.-U., von Hobe, M., Stroh, F., Suminska-Ebersoldt, O., Volk, C. M., Hösen, E., Mitev, V., Shur, G., and Müller, R.: Heterogeneous chlorine activation on stratospheric aerosols and clouds in the Arctic polar vortex, Atmos. Chem. Phys., 12, 11095-11106, doi:10.5194/acp-12-11095-2012, 2012.
Wespes, C., Hurtmans, D., Herbin, H., Barret, B., Turquety, S., Hadji-Lazaro, J., and Coheur, P. F.: First global distributions of nitric acid in the troposphere and the stratosphere derived from infrared satellite measurements, J. Geophys. Res.-Atmos., 112, 1-10, doi:10.1029/2006JD008202, 2007.
Wespes, C., Hurtmans, D., Clerbaux, C., Santee, M. L., Martin, R. V., and Coheur, P. F.: Global distributions of nitric acid from IASI/MetOP measurements, Atmos. Chem. Phys., 9, 7949-7962, doi:10.5194/acp-9-7949-2009, 2009.
Wespes, C., Hurtmans, D., Emmons, L. K., Safieddine, S., Clerbaux, C., Edwards, D. P., and Coheur, P.-F.: Ozone variability in the troposphere and the stratosphere from the first 6 years of IASI observations (2008-2013), Atmos. Chem. Phys., 16, 5721-5743, doi:10.5194/acp-16-5721-2016, 2016.
Wolff, M. A., Kerzenmacher, T., Strong, K., Walker, K. A., Toohey, M., Dupuy, E., Bernath, P. F., Boone, C. D., Brohede, S., Catoire, V., von Clarmann, T., Coffey, M., Daffer, W. H., De Mazière, M., Duchatelet, P., Glatthor, N., Griffith, D. W. T., Hannigan, J., Hase, F., Höpfner, M., Huret, N., Jones, N., Jucks, K., Kagawa, A., Kasai, Y., Kramer, I., Küllmann, H., Kuttippurath, J., Mahieu, E., Manney, G., McElroy, C. T., McLinden, C., Mébarki, Y., Mikuteit, S., Murtagh, D., Piccolo, C., Raspollini, P., Ridolfi, M., Ruhnke, R., Santee, M., Senten, C., Smale, D., Tétard, C., Urban, J., and Wood, S.: Validation of HNO3, ClONO2, and N2O5 from the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS), Atmos. Chem. Phys., 8, 3529-3562, doi:10.5194/acp-8-3529-2008, 2008.
Wood, S.W., Bodeker, G. E., Boyd, I. S., Jones, N. B., Connor, B. J., Johnston, P. V., and Sasano, Y.: Validation of version 5.20 ILAS HNO3, CH4, N2O, O3, and NO2 using ground-based measurements at Arrival Heights and Kiruna, J. Geophys. Res.-Atmos., 107, 1-11, doi:10.1029/2001JD000581, 2002.
Wood, S. W., Batchelor, R. L., Goldman, A., Rinsland, C. P., Connor, B. J., Murcray, F. J., and Heuff, D. N.: Ground-based nitric acid measurements at Arrival Heights, Antarctica, using solar and lunar Fourier transform infrared observations, J. Geophys. Res.-Atmos., 109, 1-9, doi:10.1029/2004JD004665, 2004.
Zander, R., Mahieu, E., Demoulin, P., Duchatelet, P., Roland, G., Servais, C., and Rinsland, C. P.: Our changing atmosphere: Evidence based on long-term infrared solar observations at the Jungfraujoch since 1950, Sci. Total Environ., 391, 184-195, doi:10.1016/j.scitotenv.2007.10.018, 2008.