Aura MLS


Contact: Luis Millan

HO2 is an important reactive species in atmospheric chemistry. It is closely linked with OH and they are often known as the HOx family that plays an important role in controlling middle atmospheric ozone through catalytic HOx reaction cycles.

How it is part of MLS Science Objectives

MLS makes the first global measurements of HO2 that, along with its measurements of OH, provide needed new information on stratospheric hydrogen chemistry that affects ozone. Lack of global OH and HO2 measurements has previously been a major limitation in constraining models of stratospheric chemistry. MLS HO2 measurements, together with OH measurements, provide unique observational evidences that make it possible to study the global distribution and variability of HOx, their partitioning, and their impact on ozone.

How EOS MLS measures HO2

The standard product for HO2 is taken from the 640 GHz retrieval. Significant averaging (e.g., weekly zonal means) is required to obtain useful HO2 data from MLS observations. Averages of nighttime observations (from the descending part of the orbit), when HO2 abundances are expected to be essentially zero show significant non-zero values, indicative of biases. These need to be removed before any scientific study by taking day/night (or ascending/descending) differences. We believe that these differences will be reliable at levels at and above the 22 hPa pressure surfaces. At pressures greater than 22 hPa the bias is larger than we can confidently expect simple day/night differences to remove.

HO2 has been validated using the balloon-borne FIRS-2 instrument during field campaigns [Pickett et al., 2006 , 2008 ].

HO2 Information from the Spectroscopy Database

Quick Product Information for data version v5

  • Swath Name: HO2
  • Status Flag: Only use profiles for which the Status field is an even number.
  • Useful Range: 22 - 0.046 hPa
  • DAAC Short Name: ML2HO2
  • Precision: Only use values for which the estimated precision is a positive number.
  • Quality Threshold: MLS v5.0x HO2 data can be used irrespective of the value of the Quality field.
  • Convergence Threshold: <1.1

Download Aura MLS HO2 v5 data

Latest Publications (HO2)

  1. Mironova, I., M. Sinnhuber, G. Bazilevskaya, M. Clilverd, B. Funke, V. Makhmutov, E. Rozanov, M. Santee, T. Sukhodolov and T. Ulich
    Exceptional middle latitude electron precipitation detected by balloon observations: implications for atmospheric composition
    Atmos. Chem. Phys. doi:10.5194/acp-22-6703-2022, 2022
  2. Roy, R., J. Kuttippurath, F. Lefèvre, S. Raj and P. Kumar
    The sudden stratospheric warming and chemical ozone loss in the Antarctic winter 2019: comparison with the winters of 1988 and 2002
    Theoretical and Applied Climatology doi:10.1007/s00704-022-04031-6, 2022
  3. Santee, M.L., A. Lambert, G.L. Manney, N.J. Livesey, L. Froidevaux, J.L. Neu, M.J. Schwartz, L.F. Millán, F. Werner, W.G. Read, M. Park, R.A. Fuller and B.M. Ward
    Prolonged and Pervasive Perturbations in the Composition of the Southern Hemisphere Midlatitude Lower Stratosphere From the Australian New Year's Fires
    Geophys. Res. Lett. doi:10.1029/2021gl096270, 2022
  4. Strahan, S., L. Coy, A. Douglass and M. Damon
    Faster Tropical Upper Stratospheric Upwelling Drives Changes in Ozone Chemistry
    Geophys. Res. Lett. doi:10.1029/2022gl101075, 2022
  5. Strahan, S., D. Smale, S. Solomon, G. Taha, M. Damon, S. Steenrod, N. Jones, B. Liley, R. Querel and J. Robinson
    Unexpected Repartitioning of Stratospheric Inorganic Chlorine After the 2020 Australian Wildfires
    Geophys. Res. Lett. doi:10.1029/2022gl098290, 2022
  6. Wespes, C., G. Ronsmans, L. Clarisse, S. Solomon, D. Hurtmans, C. Clerbaux and P. Coheur
    Polar stratospheric nitric acid depletion surveyed from a decadal dataset of IASI total columns
    Atmos. Chem. Phys. doi:10.5194/acp-22-10993-2022, 2022
  7. Feng, W., S. Dhomse, C. Arosio, M. Weber, J. Burrows, M. Santee and M. Chipperfield
    Arctic Ozone Depletion in 2019/20: Roles of Chemistry, Dynamics and the Montreal Protocol
    Geophys. Res. Lett. doi:10.1029/2020gl091911, 2021
  8. Grooß, J. and R. Müller
    Simulation of Record Arctic Stratospheric Ozone Depletion in 2020
    Journal of Geophysical Research: Atmospheres doi:10.1029/2020jd033339, 2021
  9. Hegglin, M., S. Tegtmeier, J. Anderson, A. Bourassa, S. Brohede, D. Degenstein, L. Froidevaux, B. Funke, J. Gille, Y. Kasai, E. Kyrölä, J. Lumpe, D. Murtagh, J. Neu, K. Pérot, E. Remsberg, A. Rozanov, M. Toohey, J. Urban, T. von Clarmann, K. Walker, H. Wang, C. Arosio, R. Damadeo, R. Fuller, G. Lingenfelser, C. McLinden, D. Pendlebury, C. Roth, N. Ryan, C. Sioris, L. Smith and K. Weigel
    Overview and update of the SPARC Data Initiative: comparison of stratospheric composition measurements from satellite limb sounders
    Earth System Science Data doi:10.5194/essd-13-1855-2021, 2021
  10. Kuttippurath, J., W. Feng, R. Müller, P. Kumar, S. Raj, G. Gopikrishnan and R. Roy
    Exceptional loss in ozone in the Arctic winter/spring of 2019/2020
    Atmos. Chem. Phys. doi:10.5194/acp-21-14019-2021, 2021
  11. Livesey, N., W. Read, L. Froidevaux, A. Lambert, M. Santee, M. Schwartz, L. Millán, R. Jarnot, P. Wagner, D. Hurst, K. Walker, P. Sheese and G. Nedoluha
    Investigation and amelioration of long-term instrumental drifts in water vapor and nitrous oxide measurements from the Aura Microwave Limb Sounder MLS and their implications for studies of variability and trends
    Atmos. Chem. Phys. doi:10.5194/acp-21-15409-2021, 2021
  12. Shan, C., H. Zhang, W. Wang, C. Liu, Y. Xie, Q. Hu and N. Jones
    Retrieval of Stratospheric HNO3 and HCl Based on Ground-Based High-Resolution Fourier Transform Spectroscopy
    Remote Sens. doi:10.3390/rs13112159, 2021
  13. Steiner, M., B. Luo, T. Peter, M. Pitts and A. Stenke
    Evaluation of polar stratospheric clouds in the global chemistry–climate model SOCOLv3.1 by comparison with CALIPSO spaceborne lidar measurements
    Geoscientific Model Development doi:10.5194/gmd-14-935-2021, 2021
  14. Tritscher, I., M.C. Pitts, L.R. Poole, S.P. Alexander, F. Cairo, M.P. Chipperfield, J-U. Grooss, M. Höpfner, A. Lambert, B.P. Luo, S. Molleker, A. Orr, R. Salawitch, M. Snels, R. Spang, W. Woiwode and T. Peter
    Polar Stratospheric Clouds Satellite Observations, Processes, and Role in Ozone Depletion
    Rev. Geophys. doi:10.1029/2020rg000702, 2021
  15. von Gathen, P.D., R. Kivi, I. Wohltmann, R. Salawitch and M. Rex
    Climate change favours large seasonal loss of Arctic ozone
    Nature Communications doi:10.1038/s41467-021-24089-6, 2021
  16. Wilka, C., S. Solomon, D. Kinnison and D. Tarasick
    An Arctic ozone hole in 2020 if not for the Montreal Protocol
    Atmos. Chem. Phys. doi:10.5194/acp-21-15771-2021, 2021
  17. Gordon, E., A. Seppälä and J. Tamminen
    Evidence for energetic particle precipitation and quasi-biennial oscillation modulations of the Antarctic NO2 springtime stratospheric column from OMI observations
    Atmos. Chem. Phys. doi:10.5194/acp-20-6259-2020, 2020
  18. Inness, A., S. Chabrillat, J. Flemming, V. Huijnen, B. Langenrock, J. Nicolas, I. Polichtchouk and M. Razinger
    Exceptionally Low Arctic Stratospheric Ozone in Spring 2020 as Seen in the CAMS Reanalysis
    Journal of Geophysical Research: Atmospheres doi:10.1029/2020jd033563, 2020
  19. Kuai, L., K. Bowman, K. Miyazaki, M. Deushi, L. Revell, E. Rozanov, F. Paulot, S. Strode, A. Conley, J. Lamarque, P. Jöckel, D. Plummer, L. Oman, H. Worden, S. Kulawik, D. Paynter, A. Stenke and M. Kunze
    Attribution of Chemistry-Climate Model Initiative CCMI ozone radiative flux bias from satellites
    Atmos. Chem. Phys. doi:10.5194/acp-20-281-2020, 2020
  20. Manney, G., N. Livesey, M. Santee, L. Froidevaux, A. Lambert, Z. Lawrence, L. Millán, J. Neu, W. Read, M. Schwartz and R. Fuller
    Record‐Low Arctic Stratospheric Ozone in 2020: MLS Observations of Chemical Processes and Comparisons With Previous Extreme Winters
    Geophys. Res. Lett. 10.1029/2020gl089063, 2020
  21. Miyazaki, K., K. Bowman, K. Yumimoto, T. Walker and K. Sudo
    Evaluation of a multi-model, multi-constituent assimilation framework for tropospheric chemical reanalysis
    Atmos. Chem. Phys. doi:10.5194/acp-20-931-2020, 2020
  22. Nakajima, H., I. Murata, Y. Nagahama, H. Akiyoshi, K. Saeki, T. Kinase, M. Takeda, Y. Tomikawa, E. Dupuy and N. Jones
    Chlorine partitioning near the polar vortex edge observed with ground-based FTIR and satellites at Syowa Station, Antarctica, in 2007 and 2011
    Atmos. Chem. Phys. doi:10.5194/acp-20-1043-2020, 2020
  23. Schwartz, M., M. Santee, H. Pumphrey, G. Manney, A. Lambert, N. Livesey, L. Millán, J. Neu, W. Read and F. Werner
    Australian New Year's PyroCb Impact on Stratospheric Composition
    Geophys. Res. Lett. doi:10.1029/2020gl090831, 2020
  24. Strahan, S., D. Smale, A. Douglass, T. Blumenstock, J. Hannigan, F. Hase, N. Jones, E. Mahieu, J. Notholt, L. Oman, I. Ortega, M. Palm, M. Prignon, J. Robinson, M. Schneider, R. Sussmann and V. Velazco
    Observed Hemispheric Asymmetry in Stratospheric Transport Trends From 1994 to 2018
    Geophys. Res. Lett. doi:10.1029/2020gl088567, 2020
  25. Wargan, K., B. Weir, G. Manney, S. Cohn and N. Livesey
    The Anomalous 2019 Antarctic Ozone Hole in the GEOS Constituent Data Assimilation System With MLS Observations
    Journal of Geophysical Research: Atmospheres doi:10.1029/2020jd033335, 2020
  26. Errera, Q., S. Chabrillat, Y. Christophe, J. Debosscher, D. Hubert, W. Lahoz, M. Santee, M. Shiotani, S. Skachko, T. von Clarmann and K. Walker
    Technical note: Reanalysis of Aura MLS chemical observations
    Atmos. Chem. Phys. doi:10.5194/acp-19-13647-2019, 2019
  27. Froidevaux, L., D. Kinnison, R. Wang, J. Anderson and R. Fuller
    Evaluation of CESM1 WACCM free-running and specified dynamics atmospheric composition simulations using global multispecies satellite data records
    Atmos. Chem. Phys. doi:10.5194/acp-19-4783-2019, 2019
  28. Johansson, S., M. Santee, J. Grooß, M. Höpfner, M. Braun, F. Friedl-Vallon, F. Khosrawi, O. Kirner, E. Kretschmer, H. Oelhaf, J. Orphal, B. Sinnhuber, I. Tritscher, J. Ungermann, K. Walker and W. Woiwode
    Unusual chlorine partitioning in the 2015/16 Arctic winter lowermost stratosphere: observations and simulations
    Atmos. Chem. Phys. doi:10.5194/acp-19-8311-2019, 2019
  29. Miyazaki, K., T. Sekiya, D. Fu, K.W. Bowman, S.S. Kulawik, K. Sudo, T. Walker, Y. Kanaya, M. Takigawa, K. Ogochi, H. Eskes, K.F. Boersma, A.M. Thompson, B. Gaubert, J. Barre and L.K. Emmons
    Balance of Emission and Dynamical Controls on Ozone During the Korea-United States Air Quality Campaign From Multiconstituent Satellite Data Assimilation
    Journal of Geophysical Research: Atmospheres doi:10.1029/2018jd028912, 2019
  30. Tritscher, I., J. Grooß, R. Spang, M. Pitts, L. Poole, R. Müller and M. Riese
    Lagrangian simulation of ice particles and resulting dehydration in the polar winter stratosphere
    Atmos. Chem. Phys. 10.5194/acp-19-543-2019, 2019
  31. Woiwode, W., M. Höpfner, L. Bi, F. Khosrawi and M.L. Santee
    Vortex‐Wide Detection of Large Aspherical NAT Particles in the Arctic Winter 2011/12 Stratosphere
    Geophys. Res. Lett. doi:10.1029/2019gl084145, 2019
  32. Zambri, B., S. Solomon, D. Kinnison, M. Mills, A. Schmidt, R. Neely, A. Bourassa, D. Degenstein and C. Roth
    Modeled and Observed Volcanic Aerosol Control on Stratospheric NOy and Cly
    Journal of Geophysical Research: Atmospheres doi:10.1029/2019jd031111, 2019
  33. Johansson, S., W. Woiwode, M. Höpfner, F. Friedl-Vallon, A. Kleinert, E. Kretschmer, T. Latzko, J. Orphal, P. Preusse, J. Ungermann, M. Santee, T. Jurkat-Witschas, A. Marsing, C. Voigt, A. Giez, M. Krämer, C. Rolf, A. Zahn, A. Engel, B. Sinnhuber and H. Oelhaf
    Airborne limb-imaging measurements of temperature, HNO3, O3, ClONO2, H2O and CFC-12 during the Arctic winter 2015/2016: characterization, in situ validation and comparison to Aura/MLS
    Atmospheric Measurement Techniques doi:10.5194/amt-11-4737-2018, 2018
  34. Khosrawi, F., O. Kirner, G. Stiller, M. Höpfner, M. Santee, S. Kellmann and P. Braesicke
    Comparison of ECHAM5/MESSy Atmospheric Chemistry EMAC simulations of the Arctic winter 2009/2010 and 2010/2011 with Envisat/MIPAS and Aura/MLS observations
    Atmos. Chem. Phys. doi:10.5194/acp-18-8873-2018, 2018
  35. Kreyling, D., I. Wohltmann, R. Lehmann and M. Rex
    The Extrapolar SWIFT model version 1.0: fast stratospheric ozone chemistry for global climate models
    Geoscientific Model Development doi:10.5194/gmd-11-753-2018, 2018
  36. Millán, L., N. Livesey, M. Santee and T. von Clarmann
    Characterizing sampling and quality screening biases in infrared and microwave limb sounding
    Atmos. Chem. Phys. doi:10.5194/acp-18-4187-2018, 2018
  37. Pitts, M., L. Poole and R. Gonzalez
    Polar stratospheric cloud climatology based on CALIPSO spaceborne lidar measurements from 2006 to 2017
    Atmos. Chem. Phys. doi:10.5194/acp-18-10881-2018, 2018
  38. Zhu, Y., O. Toon, D. Kinnison, V.L. Harvey, M. Mills, C. Bardeen, M. Pitts, N. Bègue, J. Renard, G. Berthet and F. Jégou
    Stratospheric Aerosols, Polar Stratospheric Clouds, and Polar Ozone Depletion After the Mount Calbuco Eruption in 2015
    Journal of Geophysical Research: Atmospheres doi:10.1029/2018jd028974, 2018
  39. Hegglin, M., S. Tegtmeier, J. Anderson, A. Bourassa, S. Brohede, D. Degenstein, L. Froidevaux, B. Funke, J. Gille, A. Jones, Y. Kasai, E. Kyrola, J. Lumpe, J. Neu, E. Remsberg, A. Rozanov, M. Toohey, J. Urban, T. von Clarmann, K.A. Walker and R. Wang
    The SPARC Data Initiative: Assessment of stratospheric trace gas and aerosol climatologies from satellite limb sounders
  40. Khosrawi, F., O. Kirner, B. Sinnhuber, S. Johansson, M. Höpfner, M. Santee, L. Froidevaux, J. Ungermann, R. Ruhnke, W. Woiwode, H. Oelhaf and P. Braesicke
    Denitrification, dehydration and ozone loss during the 2015/2016 Arctic winter
    Atmos. Chem. Phys. doi:10.5194/acp-17-12893-2017, 2017
  41. Miyazaki, K., H. Eskes, K. Sudo, K.F. Boersma, K. Bowman and Y. Kanaya
    Decadal changes in global surface NOx emissions from multi-constituent satellite data assimilation
    Atmos. Chem. Phys. doi:10.5194/acp-17-807-2017, 2017
  42. Miyazaki, K. and K. Bowman
    Evaluation of ACCMIP ozone simulations and ozonesonde sampling biases using a satellite-based multi-constituent chemical reanalysis
    Atmos. Chem. Phys. doi:10.5194/acp-17-8285-2017, 2017
  43. Park, M., W.J. Randel, D.E. Kinnison, A.E. Bourassa, D.A. Degenstein, C.Z. Roth, C.A. McLinden, C.E. Sioris, N.J. Livesey and M.L. Santee
    Variability of Stratospheric Reactive Nitrogen and Ozone Related to the QBO
    Journal of Geophysical Research: Atmospheres doi:10.1002/2017jd027061, 2017
  44. Santee, M.L., G.L. Manney, N.J. Livesey, M.J. Schwartz, J.L. Neu and W.G. Read
    A comprehensive overview of the climatological composition of the Asian summer monsoon anticyclone based on 10 years of Aura Microwave Limb Sounder measurements
    Journal of Geophysical Research: Atmospheres doi:10.1002/2016jd026408, 2017
  45. Sheese, P., K. Walker, C. Boone, P. Bernath, L. Froidevaux, B. Funke, P. Raspollini and T. von Clarmann
    ACE-FTS ozone, water vapour, nitrous oxide, nitric acid, and carbon monoxide profile comparisons with MIPAS and MLS
    J. Quant. Spectrosc. Radiat. Transfer doi:10.1016/j.jqsrt.2016.06.026, 2017
  46. Wohltmann, I., R. Lehmann and M. Rex
    A quantitative analysis of the reactions involved in stratospheric ozone depletion in the polar vortex core
    Atmos. Chem. Phys. doi:10.5194/acp-17-10535-2017, 2017
  47. Wohltmann, I., R. Lehmann and M. Rex
    Update of the Polar SWIFT model for polar stratospheric ozone loss Polar SWIFT version 2
    Geosci. Model Dev. doi:10.5194/gmd-10-2671-2017, 2017
  48. Zhu, Y., O. Toon, M. Pitts, A. Lambert, C. Bardeen and D. Kinnison
    Comparing simulated PSC optical properties with CALIPSO observations during the 2010 Antarctic winter
    Journal of Geophysical Research: Atmospheres doi:10.1002/2016jd025191, 2017
  49. Zhu, Y., O. Toon, A. Lambert, D. Kinnison, C. Bardeen and M. Pitts
    Development of a Polar Stratospheric Cloud Model Within the Community Earth System Model: Assessment of 2010 Antarctic Winter
    Journal of Geophysical Research: Atmospheres doi:10.1002/2017jd027003, 2017
  50. Andersson, M.E., P.T. Verronen, D.R. Marsh, S.M. Paivarinta and J.M.C. Plane
    WACCM-D-Improved modeling of nitric acid and active chlorine during energetic particle precipitation
    Journal of Geophysical Research: Atmospheres doi:10.1002/2015jd024173, 2016
  51. Damiani, A., B. Funke, M.L. Puertas, M.L. Santee, R.R. Cordero and S. Watanabe
    Energetic particle precipitation: A major driver of the ozone budget in the Antarctic upper stratosphere
    Geophys. Res. Lett. doi:10.1002/2016gl068279, 2016
  52. Duderstadt, K.A., J.E. Dibb, C.H. Jackman, C.E. Randall, N.A. Schwadron, S.C. Solomon and H.E. Spence
    Comment on “Atmospheric ionization by high-fluence, hard spectrum solar proton events and their probable appearance in the ice core archive” by A. L. Melott et al.
    Journal of Geophysical Research: Atmospheres doi:10.1002/2016jd025220, 2016
  53. Gu, Y., H. Liao and J. Bian
    Summertime nitrate aerosol in the upper troposphere and lower stratosphere over the Tibetan Plateau and the South Asian summer monsoon region
    Atmos. Chem. Phys. doi:10.5194/acp-16-6641-2016, 2016
  54. Lambert, A., M. Santee and N. Livesey
    Interannual variations of early winter Antarctic polar stratospheric cloud formation and nitric acid observed by CALIOP and MLS
    Atmos. Chem. Phys. doi:10.5194/acp-16-15219-2016, 2016
  55. Manney, G. and Z. Lawrence
    The major stratospheric final warming in 2016: dispersal of vortex air and termination of Arctic chemical ozone loss
    Atmos. Chem. Phys. 10.5194/acp-16-15371-2016, 2016
  56. Millan, L., N. Livesey, M. Santee, J. Neu, G. Manney and R. Fuller
    Case studies of the impact of orbital sampling on stratospheric trend detection and derivation of tropical vertical velocities: solar occultation vs. limb emission sounding
    Atmos. Chem. Phys. doi:10.5194/acp-16-11521-2016, 2016
  57. Nakajima, H., I. Wohltmann, T. Wegner, M. Takeda, M.C. Pitts, L.R. Poole, R. Lehmann, M.L. Santee and M. Rex
    Polar Stratospheric Cloud evolution and chlorine activation measured by CALIPSO and MLS, and modelled by ATLAS
    Atmos. Chem. Phys. doi:10.5194/acp-16-3311-2016, 2016
  58. Paivarinta, S.M., P.T. Verronen, B. Funke, A. Gardini, A. Seppala and M.E. Andersson
    Transport versus energetic particle precipitation: Northern polar stratospheric NOx and ozone in January-March 2012
    Journal of Geophysical Research: Atmospheres doi:10.1002/2015jd024217, 2016
  59. Sheese, P., K. Walker, C. Boone, C. McLinden, P. Bernath, A. Bourassa, J. Burrows, D. Degenstein, B. Funke, D. Fussen, G. Manney, C.T. McElroy, D. Murtagh, C. Randall, P. Raspollini, A. Rozanov, J. Russell III, M. Suzuki, M. Shiotani, J. Urban, T. von Clarmann and J. Zawodny
    Validation of ACE-FTS version 3.5 NOy species profiles using correlative satellite measurements
    Atmospheric Measurement Techniques doi:10.5194/amt-9-5781-2016, 2016
  60. Skachko, S., R. Menard, Q. Errera, Y. Christophe and S. Chabrillat
    EnKF and 4D-Var data assimilation with chemical transport model BASCOE version 05.06
    Geosci. Model Dev. doi:10.5194/gmd-9-2893-2016, 2016
  61. Frankland, V.L., A.D. James, W. Feng and J.M.C. Plane
    The uptake of HNO3 on meteoric smoke analogues
    J. Atmos. Solar-Terr. Phys. doi:10.1016/j.jastp.2015.01.010, 2015
  62. Froidevaux, L., J. Anderson, H.J. Wang, R.A. Fuller, M.J. Schwartz, M.L. Santee, N.J. Livesey, H.C. Pumphrey, P.F. Bernath, J.M. Russell III and M.P. McCormick
    Global OZone Chemistry And Related trace gas Data records for the Stratosphere GOZCARDS: methodology and sample results with a focus on HCl, H2O, and O3
    Atmos. Chem. Phys. doi:10.5194/acp-15-10471-2015, 2015
  63. Kaufmann, M., J. Blank, T. Guggenmoser, J. Ungermann, A. Engel, M. Ern, F. Friedl-Vallon, D. Gerber, J.U. Grooss, G. Guenther, M. Höpfner, A. Kleinert, E. Kretschmer, T. Latzko, G. Maucher, T. Neubert, H. Nordmeyer, H. Oelhaf, F. Olschewski, J. Orphal, P. Preusse, H. Schlager, H. Schneider, D. Schuettemeyer, F. Stroh, O. Suminska-Ebersoldt, B. Vogel, C.M. Volk, W. Woiwode and M. Riese
    Retrieval of three-dimensional small-scale structures in upper-tropospheric/lower-stratospheric composition as measured by GLORIA
    Atmospheric Measurement Techniques doi:10.5194/amt-8-81-2015, 2015
  64. Kirner, O., R. Muller, R. Ruhnke and H. Fischer
    Contribution of liquid, NAT and ice particles to chlorine activation and ozone depletion in Antarctic winter and spring
    Atmos. Chem. Phys. doi:10.5194/acp-15-2019-2015, 2015
  65. Kuttippurath, J., S. Godin-Beekmann, F. Lefevre, M.L. Santee, L. Froidevaux and A. Hauchecorne
    Variability in Antarctic ozone loss in the last decade 2004-2013: high-resolution simulations compared to Aura MLS observations
    Atmos. Chem. Phys. doi:10.5194/acp-15-10385-2015, 2015
  66. Liberto, L.D., R. Lehmann, I. Tritscher, F. Fierli, J.L. Mercer, M. Snels, G.D. Donfrancesco, T. Deshler, B.P. Luo, J. Grooß, E. Arnone, B.M. Dinelli and F. Cairo
    Lagrangian analysis of microphysical and chemical processes in the Antarctic stratosphere: a case study
    Atmos. Chem. Phys. doi:10.5194/acp-15-6651-2015, 2015
  67. Manney, G., Z. Lawrence, M. Santee, W. Read, N. Livesey, A. Lambert, L. Froidevaux, H. Pumphrey and M. Schwartz
    A minor sudden stratospheric warming with a major impact: Transport and polar processing in the 2014/2015 Arctic winter
    Geophys. Res. Lett. doi:10.1002/2015gl065864, 2015
  68. Manney, G.L., Z.D. Lawrence, M.L. Santee, N.J. Livesey, A. Lambert and M.C. Pitts
    Polar processing in a split vortex: Arctic ozone loss in early winter 2012/2013
    Atmos. Chem. Phys. doi:10.5194/acp-15-5381-2015, 2015
  69. Miyazaki, K., H.J. Eskes and K. Sudo
    A tropospheric chemistry reanalysis for the years 2005–2012 based on an assimilation of OMI, MLS, TES, and MOPITT satellite data
    Atmos. Chem. Phys. doi:10.5194/acp-15-8315-2015, 2015
  70. Pendlebury, D., D. Plummer, J. Scinocca, P. Sheese, K. Strong, K. Walker and D. Degenstein
    Comparison of the CMAM30 data set with ACE-FTS and OSIRIS: polar regions
    Atmos. Chem. Phys. doi:10.5194/acp-15-12465-2015, 2015
  71. Schwartz, M.J., G.L. Manney, M.I. Hegglin, N.J. Livesey, M.L. Santee and W.H. Daffer
    Climatology and variability of trace gases in extratropical double-tropopause regions from MLS, HIRDLS, and ACE-FTS measurements
    Journal of Geophysical Research: Atmospheres doi:10.1002/2014JD021964, 2015
  72. Zhu, Y., O. Toon, A. Lambert, D. Kinnison, M. Brakebusch, C. Bardeen, M. Mills and J. English
    Development of a Polar Stratospheric Cloud Model within the Community Earth System Model using constraints on Type I PSCs from the 2010-2011 Arctic winter
    Journal of Advances in Modeling Earth Systems doi:10.1002/2015ms000427, 2015
  73. Engel, I., B.P. Luo, S.M. Khaykin, F.G. Wienhold, H. Vomel, R. Kivi, C.R. Hoyle, J.U. Grooss, M.C. Pitts and T. Peter
    Arctic stratospheric dehydration – Part 2: Microphysical modeling
    Atmos. Chem. Phys. doi:10.5194/acp-14-3231-2014, 2014
  74. Miyazaki, K., H.J. Eskes, K. Sudo and C. Zhang
    Global lightning NOx production estimated by an assimilation of multiple satellite data sets
    Atmos. Chem. Phys. doi:10.5194/acp-14-3277-2014, 2014
  75. Brakebusch, M., C.E. Randall, D.E. Kinnison, S. Tilmes, M.L. Santee and G.L. Manney
    Evaluation of Whole Atmosphere Community Climate Model simulations of ozone during Arctic winter 2004–2005
    J. Geophys. Res. doi:10.1002/jgrd.50226, 2013
  76. Fiorucci, I., G. Muscari, L. Froidevaux and M.L. Santee
    Ground-based stratospheric O3 and HNO3 measurements at Thule, Greenland: an intercomparison with Aura MLS observations
    Atmospheric Measurement Techniques doi:10.5194/amt-6-2441-2013, 2013
  77. Pitts, M.C., L.R. Poole, A. Lambert and L.W. Thomason
    An assessment of CALIOP polar stratospheric cloud composition classification
    Atmos. Chem. Phys. doi:10.5194/acp-13-2975-2013, 2013., 2013
  78. Wohltmann, I., T. Wegner, R. Mueller, R. Lehmann, M. Rex, G.L. Manney, M.L. Santee, P. Bernath, O. Suminska-Ebersoldt, F. Strohl, M. von Hobe, C.M. Volk, E. Hoesen, F. Ravegnani, A. Ulanovsky and V. Yushkov
    Uncertainties in modelling heterogeneous chemistry and Arctic ozone depletion in the winter 2009/2010
    Atmos. Chem. Phys. doi:10.5194/acp-13-3909-2013, 2013
  79. Blessmann, D., I. Wohldmann, R. Lehmann and M. Rex
    Persistence of ozone anomalies in the Arctic stratospheric vortex in autumn
    Atmos. Chem. Phys. doi:10.5194/acp-12-4817-2012, 2012
  80. Blunden, J. and D.S. Arndt
    State of the Climate in 2011
    Bull. Am. Meteorol. Soc. doi:10.1175/2012BAMSStateoftheClimate.1, 2012
  81. Jones, A., K.A. Walker, J.J. Jin, J.R. Taylor, C.D. Boone, P.F. Bernath, S. Brohede, G.L. Manney, S. McLeod, R. Hughes and W.H. Daffer
    Technical Note: A trace gas climatology derived from the Atmospheric Chemistry Experiment Fourier Transform Spectrometer ACE-FTS data set
    Atmos. Chem. Phys. doi:10.5194/acp-12-5207-2012, 2012
  82. Kuttippurath, J., S. Godin-Beekmann, F. Lefevre, G. Nikulin, M.L. Santee and L. Froidevaux
    Record-breaking ozone loss in the Arctic winter 2010/2011: comparison with 1996/1997
    Atmos. Chem. Phys. doi:10.5194/acp-12-7073-2012, 2012
  83. Kvissel, O.K., Y.J. Orsolini, F. Stordal, I.S.A. Isaksen and M.L. Santee
    Formation of stratospheric nitric acid by a hydrated ion cluster reaction: Implications for the effect of energetic particle precipitation on the middle atmosphere
    J. Geophys. Res. doi:10.1029/2011JD017257, 2012
  84. Lambert, A., M.L. Santee, D.L. Wu and J.H. Chae
    A-Train CALIOP and MLS observations of early winter Antarctic polar stratospheric clouds and nitric acid in 2008
    Atmos. Chem. Phys. doi:10.5194/acp-12-2899-2012, 2012
  85. Miyazaki, K., H.J. Eskes, K. Sudo, M. Takigawa, M. van Weele and K.F. Boersma
    Simultaneous assimilation of satellite NO2, O3, CO, and HNO3 data for the analysis of tropospheric chemical composition and emissions
    Atmos. Chem. Phys. doi:10.5194/acp-12-9545-2012, 2012
  86. Sovde, O.A., M.J. Prather, I.S.A. Isaksen, T.K. Berntsen, F. Stordal, X. Zhu, C.D. Holmes and J. Hsu
    The chemical transport model Oslo CTM3
    Geosci. Model Dev. doi:10.5194/gmd-5-1441-2012, 2012
  87. Wegner, T., J.U. Grooss, M. von Hobe, F. Stroh, O. Suminska-Ebersoldt, C.M. Volk, E. Hosen, V. Mitev, G. Shur and R. Mueller
    Heterogeneous chlorine activation on stratospheric aerosols and clouds in the Arctic polar vortex
    Atmos. Chem. Phys. doi:10.5194/acp-12-11095-2012, 2012
  88. Feng, W., M.P. Chipperfield, S. Davies, G.W. Mann, K.S. Carslaw, S. Dhomse, L. Harvey, C. Randall and M.L. Santee
    Modelling the effect of denitrification on polar ozone depletion for Arctic winter 2004/2005
    Atmos. Chem. Phys. doi:10.5194/acp-11-6559-2011, 2011
  89. Fiorucci, I., G. Muscari and R.L. de Zafra
    Revising the retrieval technique of a long-term stratospheric HNO3 data set: from a constrained matrix inversion to the optimal estimation algorithm
    Annales Geophysicae doi:10.5194/angeo-29-1317-2011, 2011
  90. Jackman, C.H., D.R. Marsh, F.M. Vitt, R.G. Roble, C.E. Randall, P.F. Bernath, B. Funke, M. Lopez-Puertas, S. Versick, G.P. Stiller, A.J. Tylka and E.L. Flemming
    Northern Hemisphere atmospheric influence of the solar proton events and ground level enhancement in January 2005
    Atmos. Chem. Phys. doi:10.5194/acp-11-6153-2011, 2011
  91. Khosrawi, F., J. Urban, M.C. Pitts, P. Voelger, P. Achtert, M. Kaphlanov, M.L. Santee, G.L. Manney, D. Murtagh and K.H. Fricke
    Denitrification and polar stratospheric cloud formation during the Arctic winter 2009/2010
    Atmos. Chem. Phys. doi:10.5194/acp-11-8471-2011, 2011
  92. Kohma, M. and K. Sato
    The effects of atmospheric waves on the amounts of polar stratospheric clodus
    Atmos. Chem. Phys. doi:10.5194/acp-11-11535-2011, 2011
  93. Laat, A.T.J.d. and M. van Weele
    The 2010 Antarctic ozone hole: Observed reduction in ozone destruction by minor sudden stratospheric warmings
    Scientific Reports doi:10.1038/srep00038, 2011
  94. Manney, G.L., M.I. Hegglin, W.H. Daffer, M.L. Santee, E.A. Ray, S. Pawson, M.J. Schwartz, C.D. Boone, L. Froidevaux, N.J. Livesey, W.G. Read and K.A. Walker
    Jet characterization in the upper troposphere/lower stratosphere UTLS: applications to climatology and transport studies
    Atmos. Chem. Phys. doi:10.5194/acp-11-6115-2011, 2011
  95. Manney, G.L., M.L. Santee, M. Rex, N.J. Livesey, M.C. Pitts, P. Veefkind, E.R. Nash, I. Wohltmann, R. Lehmann, L. Froidevaux, L.R. Poole, M.R. Schoeberl, D.P. Haffner, J. Davies, V. Dorokhov, H. Gernandt, B. Johnson, R. Kivi, E. Kyro, N. Larsen, P.F. Levelt, A. Makshtas, C.T. McElroy, H. Nakajima, M.C. Parrondo, D.W. Tarasick, P.D. von Gathen, K.A. Walker and N.S. Zinoviev
    Unprecedented Arctic ozone loss in 2011
  96. Santee, M.L., G.L. Manney, N.J. Livesey, L. Froidevaux, M.J. Schwartz and W.G. Read
    Trace gas evolution in the lowermost stratosphere from Aura Microwave Limb Sounder measurements
    J. Geophys. Res. doi:10.1029/2011JD015590, 2011
  97. Verronen, P.T., M.L. Santee, G.L. Manney, R. Lehmann, S. Salmi and A. Seppälä
    Nitric acid enhancements in the mesosphere during the January 2005 and December 2006 solar proton events
    J. Geophys. Res. doi:10.1029/2011JD016075, 2011
  98. Chauhan, S., M. Hoepfner, G.P. Stiller, T. von Clarmann, B. Funke, N. Glatthor, U. Grabowski, A. Linden, S. Kellmann, M. Milz, T. Steck, H. Fischer, L. Froidevaux, A. Lambert, M. Santee, M. Schwartz, W.G. Read and N.J. Livesey
    MIPAS reduced spectral resolution UTLS-1 mode measurements of temperature, O3, HNO3, N2O, H2O and relative humidity over ice: retrievals and comparison to MLS
    Atmospheric Measurement Techniques doi:10.5194/amt-2-337-2009, 2009
  99. Jumelet, J., S. Bekki, P. Seifert, N. Montoux, J.P. Vernier and J. Pelon
    Microphysical modeling of a midlatitude “polar stratospheric cloud” event: Comparisons against multiwavelength ground-based and spaceborne lidar data
    J. Geophys. Res. doi:10.1029/2009JD011776, 2009
  100. Pitts, M.C., L.R. Poole and L.W. Thomason
    CALIPSO polar stratospheric cloud observations: second-generation detection algorithm and composition discrimination
    Atmos. Chem. Phys. doi:10.5194/acp-9-7577-2009, 2009
  101. Popp, P.J., T.P. Marcy, R.S. Gau, L.A. Watts, D.W. Fahey, E.C. Richard, S.J. Oltmans, M.L. Santee, N.J. Livesey, L. Froidevaux, B. Sen, G.C. Toon, K.A. Walker, C.D. Boone and P.F. Bernath
    Stratospheric correlation between nitric acid and ozone
    J. Geophys. Res. doi:10.1029/2008JD010875, 2009
  102. Urban, J., M. Pommier, D.P. Murtagh, M.L. Santee and Y.J. Orsolini
    Nitric acid in the stratosphere based on Odin observations from 2001 to 2009 - Part 1: A global climatology
    Atmos. Chem. Phys. doi:10.5194/acp-9-7031-2009, 2009
  103. Wespes, C., D. Hurtmans, C. Clerbaux, M.L. Santee, R.V. Martin and P.F. Coheur
    Global distributions of nitric acid from IASI/MetOP measurements
    Atmos. Chem. Phys. doi:10.5194/acp-9-7949-2009, 2009
  104. Coffey, M.T., J.W. Hannigan, A. Goldman, D.E. Kinnison, J.C. Gille, J. Barnett, L. Froidevaux, A. Lambert, M.L. Santee, N.J. Livesey, B.M. Fisher, S.S. Kulawik and R. Beer
    Airborne Fourier transform spectrometer (FTS) observations in support of EOS Aura validation
    J. Geophys. Res. doi:10.1029/2007JD008833, 2008
  105. Kinnison, D.E., J.C. Gille, J.J. Barnett, C.E. Randall, V.L. Harvey, A. Lambert, R. Khosravi, M.J. Alexander, P.F. Bernath, C.D. Boone, C. Cavanaugh, M.T. Coffey, C. Craig, V. Dean, T. Eden, D. Ellis, D.W. Fahey, G. Francis, C. Halvorson, J.W. Hannigan, C. Hartsough, C. Hepplewhite, C. Krinsky, H. Lee, W.G. Mankin, T. Marcy, S.T. Massie, B. Nardi, D. Packman, P.J. Popp, M.L. Santee, V. Yudin and K.A. Walker
    Global Observations of HNO3 from the High Resolution Dynamics Limb Sounder (HIRDLS): First results
    J. Geophys. Res. doi:10.1029/2007JD008814, 2008
  106. Manson, A.H., C.E. Meek and T. Chshyolkova
    Regional stratospheric warmings in the Pacific-Western Canada (PWC) sector during winter 2004/2005: implications for temperatures, winds, chemical constituents and the characterization of the Polar vortex
    Annales Geophysicae doi:10.5194/angeo-26-3597-2008, 2008
  107. Santee, M.L., I.A. MacKenzie, G.L. Manney, M.P. Chipperfield, P.F. Bernath, K.A. Walker, C.D. Boone, L. Froidevaux, N.J. Livesey and J.W. Waters
    A study of stratospheric chlorine partitioning based on new
    J. Geophys. Res. doi:10.1029/2007JD009057, 2008
  108. Wolff, M.A., T. Kerzenmacher, K. Strong, K.A. Walker, M. Toohey, E. Dupuy, P.F. Bernath, C.D. Boone, S. Brohede, V. Catoire, T. von Clarmann, M. Coffey, W.H. Daffer, M. De Maziere, P. Duchatelet, N. Glatthor, J. Hannigan, F. Hase, M. Hopfner, N. Huret, N. Jones, K. Jucks, A. Kagawa, Y. Kasai, I. Kramer, H. Kullmann, J. Kuttippurath, E. Mahieu, G. Manney, C.T. McElroy, C. McLinden, Y. Mebarki, S. Mikuteit, D. Murtagh, C. Piccolo, P. Raspollini, M. Ridolfi, R. Ruhnke, M. Santee, C. Senten, D. Smale, C. Tetard, J. Urban and S. Wood
    Validation of HNO3, ClONO2, and N2O5 from the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS)
    Atmos. Chem. Phys. doi:10.5194/acp-8-3529-2008, 2008
  109. Manney, G.L., W.H. Daffer, J.M. Zawodny, P.F. Bernath, K.W. Hoppel, K.A. Walker, B.W. Knosp, C. Boone, E.E. Remsberg, M.L. Santee, V. Lynn Harvey, S. Pawson, D.R. Jackson, L. Deaver, C.T. McElroy, C.A. McLinden, J.R. Drummond, H.C. Pumphrey, A. Lambert, M.J. Schwartz, L. Froidevaux, S. McLeod, L.L. Takacs, M.J. Suarez, C.R. Trepte, D.T. Cuddy, N.J. Livesey, R.S. Harwood and J.W. Waters
    Solar Occultation Satellite Data and Derived Meteorological Products: Sampling Issues and Comparisons with Aura MLS
    J. Geophys. Res. doi:10.1029/2007JD008709, 2007
  110. Pitts, M.C., L.W. Thomason, L.R. Poole and D.M. Winker
    Characterization of Polar Stratospheric Clouds with spaceborne lidar: CALIPSO and the 2006 Antarctic season
    Atmos. Chem. Phys. doi:10.5194/acp-7-5207-2007, 2007
  111. Santee, M.L., A. Lambert, W.G. Read, N.J. Livesey, R.E. Cofield, D.T. Cuddy, W.H. Daffer, B.J. Drouin, L. Froidevaux, R.A. Fuller, R.F. Jarnot, B.W. Knosp, G.L. Manney, V.S. Perun, W.V. Snyder, P.C. Stek, R.P. Thurstans, P.A. Wagner, J.W. Waters, G. Muscari, R.L. deZafra, J.E. Dibb, D.W. Fahey, P.J. Popp, T.P. Marcy, K.W. Jucks, G.C. Toon, R.A. Stachnik, P.F. Bernath, C.D. Boone, K.A. Walker, J. Urban and D. Murtagh
    Validation of Aura Microwave Limb Sounder HNO3 Measurements
    J. Geophys. Res. doi:10.1029/2007JD008721, 2007
  112. Wang, D.Y., C.S. Singleton, G. Mengistu Tsidu, G.P. Stiller, T. von Clarmann, H. Fischer, T. Blumenstock, N. Glatthor, U. Grabowski, F. Hase, S. Kellmann, A. Linden, M. Milz, H. Oelhaf, M. Schneider, T. Steck, G. Wetzel, M. pez-Puertas, B. Funke, M.E. Koukouli, H. Nakajima, T. Sugita, H. Irie, J. Urban, D. Murtagh, M.L. Santee, G. Toon, M.R. Gunson, F.W. Irion, C.D. Boone, K. Walker and P.F. Bernath
    Validation of nitric acid retrieved by the IMK-IAA processor from MIPAS/ENVISAT measurements
    Atmos. Chem. Phys. doi:10.5194/acp-7-721-2007, 2007
  113. Barret, B., P. Ricaud, M.L. Santee, J-L. Attie, J. Urban, E. Le Flochmoen, G. Berthet, D. Murtagh, P. Eriksson, A. Jones, J. de La Noe, E. Dupuy, L. Froidevaux, N.J. Livesey, J.W. Waters and M.J. Filipiak
    Intercomparisons of Trace Gas Profiles from the Odin/SMR and Aura/MLS Limb Sounders
    J. Geophys. Res. doi:10.1029/2006JD007305, 2006
  114. Cofield, R.E. and P.C. Stek
    Design and field-of-view calibration of 114-660 GHz optics of the Earth Observing System Microwave Limb Sounder
    IEEE Trans. Geosci. Remote Sensing doi:10.1109/TGRS.2006.873234, 2006
  115. Froidevaux, L., N.J. Livesey, W.G. Read, Y.B. Jiang, C.J. Jimenez, M.J. Filipiak, M.J. Schwartz, M.L. Santee, H.C. Pumphrey, J.H. Jiang, D.L. Wu, G.L. Manney, B.J. Drouin, J.W. Waters, E.J. Fetzer, P.F. Bernath, C.D. Boone, K.A. Walker, K.W. Jucks, G.C. Toon, J.J. Margitan, B. Sen, C.R. Webster, L.E. Christensen, J.W. Elkins, E. Atlas, R.A. Lueb and R. Hendershot
    Early validation analyses of atmospheric profiles from EOS MLS on the Aura satellite
    IEEE Trans. Geosci. Remote Sensing doi:10.1109/TGRS.2006.864366, 2006
  116. Irie, H., T. Sugita, H. Nakajima, T. Yokota, H. Oelhaf, G. Wetzel, G.C. Toon, B. Sen, M.L. Santee, Y. Terao, N. Saitoh, M.K. Ejiri, T. Tanaka, Y. Kondo, H. Kanzawa, H. Kobayashi and Y. Sasano
    Validation of stratospheric nitric acid concentration profiles observed by Improved Limb Atmospheric Sectrometer (ILAS)-II
    J. Geophys. Res. doi:10.1029/2005JD006115, 2006
  117. Schoeberl, M.R., S.R. Kawa, A.R. Douglass, T.J. McGee, E.V. Browell, J.W. Waters, N.J. Livesey, W.G. Read, L. Froidevaux, M.L. Santee, H.C. Pumphrey, L.R. Lait and L. Twigg
    Chemical Observations of a Polar Vortex Intrusion
    J. Geophys. Res. doi:10.1029/2006JD007134, 2006
  118. Davies, S., G.W. Mann, K.S. Carslaw, M.P. Chipperfield, J.A. Kettleborough, M.L. Santee, H. Oelhaf, G. Wetzel, Y. Sasano and T. Sugita
    3D microphysical model studies of Arctic denitrification: Comparison with observation
    Atmos. Chem. Phys. doi:10.5194/acp-5-3093-2005, 2005
  119. Orsolini, Y.J., G.L. Manney, M.L. Santee and C.E. Randall
    An upper stratospheric layer of enhanced HNO3 following exceptional solar storms
    Geophys. Res. Lett. doi:10.1029/2004GL021588, 2005
  120. Santee, M.L., G.L. Manney, N.J. Livesey, L. Froidevaux, H.C. Pumphrey, W.G. Read, M.J. Schwartz and J.W. Waters
    Polar processing and development of the 2004 Antarctic ozone hole: First results from Aura MLS
    Geophys. Res. Lett. doi:10.1029/2005GL022582, 2005
  121. Drouin, B.J., J.L. Fry and C.E. Miller
    Rotational Spectrum of cis-cis HOONO
    J. Chem. Phys. doi:10.1063/1.1687311, 2004
  122. Santee, M.L., G.L. Manney, N.J. Livesey and W.G. Read
    Three-dimensional structure and evolution of stratospheric HNO3 based on UARS Microwave Limb Sounder measurements
    J. Geophys. Res. doi:10.1029/2004JD004578, 2004
  123. Danilin, M.Y., M K.W. Ko, R.M. Bevilacqua, L.V. Lyjak, L. Froidevaux, M.L. Santee, J.M. Zawodny, K.W. Hoppel, E.C. Richard, J.R. Spackman, E.M. Weinstock, R.L. Herman, K.A. McKinney, P.O. Wennberg, F.L. Eisele, R.M. Stimpfle, C.J. Scott, J.W. Elkins and T.V. Bui
    Comparison of ER-2 aircraft and POAM-III, MLS, and SAGE II satellite measurements during SOLVE using traditional correlative analysis and trajectory hunting techniques
    J. Geophys. Res. doi:10.1029/2001JD000781, 2002
  124. Danilin, M.Y., M K.W. Ko, L. Froidevaux, M.L. Santee, L.V. Lyjak, R.M. Bevilacqua, J.M. Zawodny, Y. Sasano, H. Irie, Y. Kondo, J.M. Russell III, C.J. Scott and W.G. Read
    Trajectory hunting as an effective technique to validate multiplatform measurements: Analysis of the MLS, HALOE, SAGE-II, ILAS, and POAM-II data in October-November 1996
    J. Geophys. Res. doi:10.1029/2001JD002012, 2002
  125. Muscari, G., M.L. Santee and R.L. de Zafra
    Intercomparison of stratospheric HNO3 over Antarctica: Ground-based Millimeter-wave versus UARS/MLS Version 5 retrievals
    J. Geophys. Res. doi:10.1029/2002JD002546, 2002
  126. Santee, M.L., A. Tabazadeh, G.L. Manney, M.D. Fromm, R.M. Bevilacqua, J.W. Waters and E.J. Jensen
    A Lagrangian approach to studying Arctic polar stratospheric clouds using UARS MLS HNO3 and POAM II aerosol extinction measurements
    J. Geophys. Res. doi:10.1029/2000JD000227, 2002
  127. Santee, M.L., G.L. Manney, N.J. Livesey and J.W. Waters
    UARS Microwave Limb Sounder Observations of Denitrification and Ozone Loss in the 2000 Arctic Late Winter
    Geophys. Res. Lett. doi:10.1029/2000GL011738, 2000
  128. Tabazadeh, A., M.L. Santee, M.Y. Danilin, H.C. Pumphrey, P.A. Newman, P.J. Hamill and J.L. Mergenthaler
    Quantifying Denitrification and Its Effect on Ozone Recovery
  129. Dessler, A.E., J. Wu, M.L. Santee and M.R. Schoeberl
    Satellite observations of temporary and irreversible denitrification
    J. Geophys. Res. doi:10.1029/1999JD900133, 1999
  130. Randel, W.J., F. Wu, J.M. Russell III and J. Waters
    Space-time patterns of trends in stratospheric constituents derived from UARS measurements
    J. Geophys. Res. doi:10.1029/1998JD100044, 1999
  131. Santee, M.L., G.L. Manney, L. Froidevaux, W.G. Read and J.W. Waters
    Six years of UARS Microwave Limb Sounder HNO3 observations:
    J. Geophys. Res. doi:10.1029/1998JD100089, 1999
  132. Ricaud, P., E. Monnier, F. Goutail, J.P. Pommereau, C. David, S. Godin, L. Froidevaux, J.W. Waters, J. Mergenthaler, A.E. Roche, H. Pumphrey and M.P. Chipperfield
    Stratosphere over Dumont d
    J. Geophys. Res. doi:10.1029/98JD00689, 1998
  133. Santee, M.L., A. Tabazadeh, G.L. Manney, R.J. Salawitch, L. Froidevaux, W.G. Read and J.W. Waters
    UARS MLS HNO3 observations: Implications for Antarctic PSCs
    J. Geophys. Res. doi:10.1029/98JD00365, 1998
  134. Engel, A., U. Schmidt and R.A. Stachnik
    Partitioning Between Chlorine Reservoir Species Deduced from Observations in the Arctic Winter Stratosphere
    J. Atmos. Chem. doi:10.1023/A:1005781919448, 1997
  135. Massie, S.T., J.E. Dye, D. Baumbardner, W.J. Randel, F. Wu, X.X. Tie, L. Pan, F. Figarol, G.P. Brasseur, M.L. Santee, W.G. Read, R.G. Grainger, A. Lambert, J.L. Mergenthaler and A. Tabazadeh
    Simultaneous observations of Polar Stratospheric Clouds and HNO3 over Scandinavia in January, 1992
    Geophys. Res. Lett. doi:10.1029/97GL00315, 1997
  136. Santee, M.L., G.L. Manney, L. Froidevaux, R.W. Zurek and J.W. Waters
    MLS observations of ClO and HNO3 in the 1996-97 Arctic polar vortex
    Geophys. Res. Lett. doi:10.1029/97GL52830, 1997
  137. Kumer, J.B., J.L. Mergenthaler, A.E. Roche, R.W. Nightingale, G.A. Ely, W.G. Uplinger, J.C. Gille, S.T. Massie, P.L. Bailey, M.R. Gunson, M.C. Abrams, G.C. Toon, B. Sen, J. Blavier, R.A. Stachnik, C.R. Webster, R.D. May, D.G. Murcray, F.J. Murcray, A. Goldman, W.A. Traub, K.W. Jucks and D.G. Johnson
    Comparison of correlative data with HNO3 version 7 from the CLAES instrument deployed on the NASA Upper Atmosphere Research Satellite
    J. Geophys. Res. doi:10.1029/95JD03759, 1996
  138. Santee, M.L., W.G. Read, J.W. Waters, L. Froidevaux, G.L. Manney, D.A. Flower, R.F. Jarnot, R.S. Harwood and G.E. Peckham
    Interhemispheric differences in polar stratospheric HNO3, H2O, ClO and O3