B. Alexander, J. Savarino, K. Kreutz, and M. H. Thiemens, Impact of preindustrial biomass-burning emissions on the oxidative pathways of tropospheric sulfur and nitrogen, J. Geophys. Res, pp.8310-01029, 2004.

S. S. Assonov and C. A. Brenninkmeijer, Reporting small ?17O values: existing definitions and concepts, Rapid Communications in Mass Spectrometry, vol.2, issue.5, pp.627-636, 2005.
DOI : 10.1002/rcm.1833

E. Barkan and B. Luz, High-precision measurements of17O/16O and18O/16O of O2 and O2/Ar ratio in air, Rapid Communications in Mass Spectrometry, vol.17, issue.24, pp.2809-2814, 2003.
DOI : 10.1002/rcm.1267

H. J. Beine, R. E. Honrath, F. Domine, W. R. Simpson, and J. D. Fuentes, NO x during background and ozone depletion periods at Alert: Fluxes above the snow surface, J. Geophys. Res, vol.107, issue.D21, pp.45844510-1029, 2002.

J. Bigeleisen, The Effects of Isotopic Substitution on the rates of Chemical Reactions, The Journal of Physical Chemistry, vol.56, issue.7, pp.823-828, 1952.
DOI : 10.1021/j150499a002

T. Blunier, G. L. Floch, H. Jacobi, and E. Quansah, Isotopic view on nitrate loss in Antarctica surface snow, Geophys. Res. Lett, pp.13510-11029, 2005.

W. A. Brand, High Precision Isotope Ratio Monitoring Techniques in Mass Spectrometry, Journal of Mass Spectrometry, vol.31, issue.3, pp.225-235, 1996.
DOI : 10.1002/(SICI)1096-9888(199603)31:3<225::AID-JMS319>3.0.CO;2-L

G. Brasseur and S. Solomon, Aeronomy of the middle atmosphere, 1986.

J. F. Burkhart, M. Hutterli, R. C. Bales, and J. R. Mcconnell, Seasonal accumulation timing and preservation of nitrate in firn at Summit, Greenland, Journal of Geophysical Research, vol.100, issue.D3, 2004.
DOI : 10.1029/2004JD004658

D. A. Burns and C. Kendall, Analysis of delta N-15 and delta O- 18 to differentiate NO ? 3 sources in runoff at two watersheds in the Catskill Mountains of, Water Resour. Res, vol.38, issue.5, pp.10-1029, 2002.

D. H. Campbell, C. Kendall, C. C. Chang, S. R. Silva, and K. A. Tonnessen, Pathways for nitrate release from an alpine watershed: Determination using delta N-15 and delta O-18, Water Resour. Res, vol.38, issue.4, pp.10-1029, 2002.

C. A. Cantrell, R. E. Shetter, and J. G. Calvert, O reaction, Journal of Geophysical Research, vol.22, issue.82, pp.3739-3743, 1994.
DOI : 10.1029/93JD02659

K. L. Casciotti, D. M. Sigman, M. Galanter-hastings, J. K. Böhlke, and A. Hilkert, Measurement of the Oxygen Isotopic Composition of Nitrate in Seawater and Freshwater Using the Denitrifier Method, Analytical Chemistry, vol.74, issue.19, pp.4905-4912, 2002.
DOI : 10.1021/ac020113w

E. S. Cotter, A. E. Jones, E. W. Wolff, and S. J. Bauguitte, What controls photochemical NO and NO 2 production from Antarctic snow? Laboratory investigation assessing the wavelength and temperature dependence, J. Geophys. Res, vol.108, issue.D4, pp.414710-1029, 2003.

D. Davis, J. B. Nowak, G. Chen, M. Buhr, R. Arimoto et al., Unexpected high levels of NO observed at South Pole, Geophysical Research Letters, vol.103, issue.3, pp.28-3625, 2001.
DOI : 10.1029/2000GL012584

D. D. Davis, F. Eisele, and G. Chen, An overview of ISCAT, Atmos. Environ, pp.5363-5373, 2000.

D. Davis, G. Chen, M. Buhr, J. Crawford, D. Lenschow et al., South Pole NO x chemistry: an assessment of factors controlling variability and absolute levels, Atmos. Environ, issue.32, pp.38-5375, 2004.

R. De-zafra and S. P. Smyshlyaev, On the formation of HNO 3 in the Antarctic mid to upper stratosphere in winter, J. Geophys. Res, vol.106, issue.23, pp.115-138, 2001.

J. E. Dibb and S. Whitlow, Recent climate anomalies and their impact on snow chemistry at South Pole, 1987-1994, Geophysical Research Letters, vol.30, issue.10, pp.1115-1118, 1987.
DOI : 10.1029/96GL01039

J. E. Dibb, L. G. Huey, D. L. Slusher, T. , and D. J. , Soluble reactive nitrogen oxides at South Pole during ISCAT 2000, Atmospheric Environment, vol.38, issue.32, pp.5399-5409, 2000.
DOI : 10.1016/j.atmosenv.2003.01.001

F. Domine and P. B. Shepson, Air-Snow Interactions and Atmospheric Chemistry, Science, vol.297, issue.5586, pp.1506-1510, 2002.
DOI : 10.1126/science.1074610

D. H. Ehhalt, F. Rohrer, S. Schauffler, and W. Pollock, Tritiated water vapor in the stratosphere: Vertical profiles and residence time, Journal of Geophysical Research, vol.27, issue.D24, pp.4710-1029, 2002.
DOI : 10.1029/2001JD001343

D. W. Fahey, K. K. Kelly, S. R. Kawa, and A. F. Tuck, Observations of denitrification and dehydration in the winter polar stratospheres, Nature, vol.344, issue.6264, pp.321-324, 1990.
DOI : 10.1038/344321a0

J. Farquhar, J. Savarino, T. L. Jackson, and M. H. Thiemens, Evidence of atmospheric sulfur in the Martian regolith from sulfur isotopes in meteorites, Nature, vol.404, issue.6773, pp.50-52, 2000.
DOI : 10.1038/35003517

B. J. Finlayson-pitts and J. N. Pitts, Chemistry of the upper and lower atmosphere: Theory, experiments and applications, 2000.

M. L. Fogel and H. W. Paerl, Isotopic tracers of nitrogen from atmospheric deposition to coastal waters, Chemical Geology, vol.107, issue.3-4, pp.3-4, 1993.
DOI : 10.1016/0009-2541(93)90181-H

M. M. Frey, R. W. Stewart, J. R. Mcconnell, and R. C. Bales, Atmospheric hydroperoxides in West Antarctica: Links to stratospheric ozone and atmospheric oxidation capacity, D23301, pp.23310-21029, 2005.
DOI : 10.1029/2005JD006110

H. D. Freyer, Seasonal trends of NH + 4 and NO ? 3 nitrogen isotope composition in rain at Jülich, pp.83-92, 1978.

H. D. Freyer, Seasonal variation of 15 N/ 14 N ratios in atmospheric nitrate species, pp.30-44, 1991.

H. D. Freyer, K. Kobel, R. J. Delmas, D. Kley, L. et al., First results of N-15/N-14 ratios in nitrate from alpine and polar ice cores, Tellus, issue.1, pp.48-93, 1996.

B. Funke, M. Lopez-puertas, S. Gil-lopez, T. Von-clarmann, G. P. Stiller et al., Downward transport of upper atmospheric NO x into the polar stratosphere and lower mesosphere during the Antarctic, J. Geophys. Res, vol.110, 2002.

Y. Q. Gao and R. A. Marcus, Strange and Unconventional Isotope Effects in Ozone Formation, Science, vol.293, issue.5528, pp.293-259, 2001.
DOI : 10.1126/science.1058528

D. R. Hanson and A. R. Ravishankara, on polar stratospheric cloud materials, Journal of Geophysical Research, vol.93, issue.6, pp.5081-5090, 1991.
DOI : 10.1029/90JD02613

J. Savarino, Isotopic constraints of atmospheric Antarctic nitrate Isotopic evidence for source changes of nitrate in rain at Bermuda, J. Geophys. Res, vol.108, issue.D24, pp.47904710-1029, 2003.

M. G. Hastings, E. J. Steig, and D. M. Sigman, Seasonal variations in N and O isotopes of nitrate in snow at Summit, Greenland: Implications for the study of nitrate in snow and ice cores, Journal of Geophysical Research, vol.100, issue.D3, 2004.
DOI : 10.1029/2004JD004991

M. G. Hastings, D. M. Sigman, and E. J. Steig, Glacial/interglacial changes in the isotopes of nitrate from the Greenland Ice Sheet Project 2 (GISP2) ice core, Global Biogeochemical Cycles, vol.102, issue.D19, pp.4010-1029, 2005.
DOI : 10.1029/2005GB002502

T. H. Heaton, ratios of nitrate and ammonium in rain at Pretoria, South Africa, Atmospheric Environment (1967), vol.21, issue.4, pp.843-852, 1987.
DOI : 10.1016/0004-6981(87)90080-1

T. H. Heaton, 15 N/ 14 N ratios of NO x from vehicule engines and coal-fired power stations, pp.304-307, 1990.

T. H. Heaton, P. Wynn, T. , and A. M. , Low 15N/14N ratios for nitrate in snow in the High Arctic (79??N), Atmospheric Environment, vol.38, issue.33, pp.5611-5621, 2004.
DOI : 10.1016/j.atmosenv.2004.06.028

M. M. Herron, Impurity Sources of F-, Cl

T. Hoering, The isotopic composition of the ammonia and the nitrate ion in rain, Geochimica et Cosmochimica Acta, vol.12, issue.1-2, pp.97-102, 1957.
DOI : 10.1016/0016-7037(57)90021-2

R. E. Honrath, M. C. Peterson, S. Guo, J. E. Dibb, P. B. Shepson et al., production within or upon ice particles in the Greenland snowpack, Geophysical Research Letters, vol.24, issue.6, pp.695-698, 1999.
DOI : 10.1029/1999GL900077

R. E. Honrath, S. Guo, M. C. Peterson, M. P. Dziobak, J. E. Dibb et al., Photochemical production of gas phase NO x from ice crystal NO 3, J. Geophys. Res, vol.105, issue.24, pp.183-207, 2000.

R. E. Honrath, M. C. Peterson, M. P. Dziobak, J. E. Dibb, M. A. Arsenault et al., Release of NOx from sunlightirradiated midlatitude snow, Geophys. Res. Lett, issue.15, pp.27-2237, 2000.

R. E. Honrath, Y. Lu, M. C. Peterson, J. E. Dibb, M. A. Arsenault et al., Vertical fluxes of NO x , HONO, and HNO 3 above the snowpack at Summit, Greenland, Atmos. Environ, vol.36, pp.15-16, 2002.

F. W. Irion, M. R. Gunson, C. P. Rinsland, Y. L. Yung, M. C. Abrams et al., Heavy ozone enrichments from ATMOS infrared solar spectra, Geophysical Research Letters, vol.86, issue.13, pp.2377-2380, 1996.
DOI : 10.1029/96GL01695

C. H. Jackman, A. R. Douglass, R. B. Rood, R. D. Mcpeters, M. et al., Effect of solar proton events on the middle atmosphere during the past two solar cycles as computed using a two-dimensional model, Journal of Geophysical Research, vol.13, issue.41, pp.95-7417, 1990.
DOI : 10.1029/JD095iD06p07417

H. W. Jacobi, R. Weller, A. E. Jones, P. S. Anderson, and O. Schrems, Peroxyacetyl nitrate (PAN) concentrations in the Antarctic troposphere measured during the photochemical experiment at Neumayer (PEAN'99), Atmospheric Environment, vol.34, issue.29-30, pp.29-30, 2000.
DOI : 10.1016/S1352-2310(00)00190-4

C. Janssen, Intramolecular isotope distribution in heavy ozone ((OOO)-O-16-O-18-O-16 and

J. C. Johnston, S. S. Cliff, and M. H. Thiemens, Measurement of multioxygen isotopic (Delta-O-18 and Delta-O-17) fractionation factors in the stratospheric sink reactions of nitrous-oxide, J. Geophys. Res, vol.100, issue.D8, pp.16-801, 1995.

J. C. Johnston and M. H. Thiemens, The isotopic composition of tropospheric ozone in three environments, Journal of Geophysical Research: Atmospheres, vol.98, issue.D21, pp.395-420, 1997.
DOI : 10.1029/97JD02075

A. E. Jones, R. Weller, A. Minikin, E. W. Wolff, W. T. Sturges et al., Oxidized nitrogen chemistry and speciation in the Antarctic troposphere, Journal of Geophysical Research: Atmospheres, vol.130, issue.16, pp.355-376, 1999.
DOI : 10.1029/1999JD900362

A. E. Jones, R. Weller, E. W. Wolff, and H. W. Jacobi, production in Antarctic snow, Geophysical Research Letters, vol.30, issue.3, pp.345-348, 2000.
DOI : 10.1029/1999GL010885

A. E. Jones, R. Weller, P. S. Anderson, H. W. Jacobi, E. W. Wolff et al., Measurements of NO x emissions from the Antarctic snowpack, Geophys. Res. Lett, issue.8, pp.28-1499, 2001.

A. E. Jones and E. W. Wolff, An analysis of the oxidation potential of the South Pole boundary layer and the influence of stratospheric ozone depletion, Journal of Geophysical Research, vol.28, issue.20, pp.4510-1029, 2003.
DOI : 10.1029/2003JD003379

B. Jourdain and M. Legrand, Year-round records of bulk and sizesegregated aerosol composition and HCl and HNO 3 levels in the Dumont d'Urville (coastal Antarctica) atmosphere: Implications for sea-salt aerosol fractionation in the winter and summer, J. Geophys. Res, vol.107, issue.D22, pp.46454610-1029, 2002.

J. Kaiser, C. A. Brenninkmeijer, and T. And-röckmann, Intramolecular 15 N and 18 O fractionation in the reaction of N 2 O with O( 1 D) and its implications for the stratospheric N 2 O isotope signature, J. Geophys. Res, vol.107, pp.42144210-1029, 2002.

J. Kaiser, T. Röckmann, and C. A. Brenninkmeijer, O photolysis, Phys. Chem. Chem. Phys., vol.60, issue.18, pp.4420-4430, 2002.
DOI : 10.1039/B204837J

URL : https://hal.archives-ouvertes.fr/hal-00300941

J. Kaiser, T. Rockmann, and C. A. Brenninkmeijer, Complete and accurate mass spectrometric isotope analysis of tropospheric nitrous oxide, Journal of Geophysical Research, vol.3, issue.10, pp.4410-1029, 2003.
DOI : 10.1029/2003JD003613

J. Kaiser, T. Roeckmann, C. A. Brenninkmeijer, C. , and P. J. , Wavelength dependence of isotope fractionation in N<sub>2</sub>O photolysis, Atmospheric Chemistry and Physics, vol.3, issue.2, pp.303-313, 2003.
DOI : 10.5194/acp-3-303-2003

J. Kaiser, T. Rockmann, and C. A. Brenninkmeijer, Contribution of mass-dependent fractionation to the oxygen isotope anomaly of atmospheric nitrous oxide, Journal of Geophysical Research: Atmospheres, vol.278, issue.D11, p.3305, 2004.
DOI : 10.1029/2003JD004088

J. Kaiser, A. Engel, R. Borchers, and T. And-röckmann, Probing stratospheric transport and chemistry with new balloon and aircraft observations of the meridional and vertical N<sub>2</sub>O isotope distribution, Atmospheric Chemistry and Physics Discussions, vol.6, issue.3, pp.4273-4324, 2006.
DOI : 10.5194/acpd-6-4273-2006

J. Kaiser, M. G. Hastings, B. Z. Houlton, T. Röckmann, and D. M. Sigman, O, Analytical Chemistry, vol.79, issue.2, pp.599-607, 2007.
DOI : 10.1021/ac061022s

URL : https://hal.archives-ouvertes.fr/hal-00300941

C. Kendall, Tracing Nitrogen Sources and Cycling in Catchments, Tracers in Catchment Hydrology, 1998.
DOI : 10.1016/B978-0-444-81546-0.50023-9

K. Kerher, P. V. Johnson, S. W. Wood, B. Nardi, and U. Platt, Ground-based measurements of tropospheric and stratospheric BrO at Arrival Heights, Antarctica, Geophysical Research Letters, vol.23, issue.23, pp.3021-3024, 1997.
DOI : 10.1029/97GL02997

K. Koba, N. Tokuchi, E. Wada, T. Nakajima, and G. Iwatsubo, Intermittent denitrification: The application of a 15N natural abundance method to a forested ecosystem, Geochimica et Cosmochimica Acta, vol.61, issue.23, pp.61-5043, 1997.
DOI : 10.1016/S0016-7037(97)00284-6

G. König-langlo, J. C. King, and P. Pettre, Climatology of the three coastal Antarctic stations Dumont d'Urville, Neumayer, and Halley, Journal of Geophysical Research: Atmospheres, vol.103, issue.D9, pp.935-945, 1998.
DOI : 10.1029/97JD00527

D. Krankowsky, F. Bartecki, G. G. Klees, K. Mauersberger, K. Schellenbach et al., Measurement of heavy isotope enrichment in tropospheric ozone, Geophysical Research Letters, vol.86, issue.13, pp.1713-1716, 1995.
DOI : 10.1029/95GL01436

D. Krankowsky, P. Lammerzahl, and E. Mauersberger, Isotopic measurements of stratospheric ozone, Geophysical Research Letters, vol.17, issue.16, pp.2593-2595, 2000.
DOI : 10.1029/2000GL011812

P. Lämmerzahl, T. Röckmann, C. A. Brenninkmeijer, D. Krankowsky, and K. Mauersberger, Oxygen isotope composition of stratospheric carbon dioxide, Geophysical Research Letters, vol.102, issue.12, pp.15821510-1029, 2002.
DOI : 10.1029/2001GL014343

M. Legrand, F. Ducroz, D. Wagenbach, R. Mulvaney, and J. Hall, Ammonium in coastal Antarctic aerosol and snow: Role of polar ocean and penguin emissions, Journal of Geophysical Research: Atmospheres, vol.2, issue.D9, pp.43-54, 1998.
DOI : 10.1029/97JD01976

M. R. Legrand and R. J. Delmas, Relative contributions of tropospheric and stratospheric sources to nitrate in Antarctic snow, Tellus, pp.38-41, 1986.

M. R. Legrand and S. Kirchner, Origins and variations of nitrate in south polar precipitation, Journal of Geophysical Research, vol.13, issue.1, pp.3493-3507, 1990.
DOI : 10.1029/JD095iD04p03493

J. R. Lyons, Transfer of mass-independent fractionation in ozone to other oxygen-containing radicals in the atmosphere, Geophysical Research Letters, vol.18, issue.48, pp.3231-3234, 2001.
DOI : 10.1029/2000GL012791

A. Mariotti, Atmospheric nitrogen is a reliable standard for natural N-15 abundance measurements, Nature, issue.5919, pp.303-685, 1983.

A. Mariotti, Natural N-15 abundance measurements and atmospheric nitrogen standard calibration, Nature, issue.5983, pp.311-251, 1984.
DOI : 10.1038/311251a0

Y. Matsuhisa, J. R. Goldsmith, C. , and R. N. , Mechanisms of hydrothermal crystallization of quartz at 250??C and 15 kbar, Geochimica et Cosmochimica Acta, vol.42, issue.2, pp.173-182, 1978.
DOI : 10.1016/0016-7037(78)90130-8

K. Mauersberger, P. Lammerzahl, and D. Krankowsky, Stratospheric ozone isotope enrichments-Revisited, Geophysical Research Letters, vol.18, issue.No. 16, pp.3155-3158, 2001.
DOI : 10.1029/2001GL013439

URL : http://hdl.handle.net/11858/00-001M-0000-0011-8578-A

P. A. Mayewski, W. B. Lyons, M. J. Spencer, M. S. Twickler, C. F. Buck et al., An ice-core record of atmospheric response to anthropogenic sulphate and nitrate, Nature, vol.346, issue.6284, pp.346-554, 1990.
DOI : 10.1038/346554a0

P. A. Mayewski and M. R. Legrand, Recent increase in nitrate concentration of Antarctic snow, Nature, vol.346, issue.6281, pp.346-258, 1990.
DOI : 10.1038/346258a0

J. Mccabe, J. Savarino, and M. H. Thiemens, Isotopic analysis of nitrate in South Pole snow and air, Fall Meet, pp.13-17, 2005.

J. R. Mccabe, C. S. Boxe, A. J. Colussi, M. R. Hoffman, and M. H. Thiemens, Oxygen isotopic fractionation in the photochemistry of nitrate in water and ice, Journal of Geophysical Research, vol.78, issue.20, pp.15310-11029, 2005.
DOI : 10.1029/2004JD005484

K. G. Mccracken, G. A. Dreschhoff, D. F. Smart, and M. A. Shea, Solar cosmic ray events for the period 1561-1994: 2. The Gleissberg periodicity, Journal of Geophysical Research: Space Physics, vol.22, issue.A10, pp.599-620, 2001.
DOI : 10.1029/2000JA000238

G. Michalski, Z. Scott, M. Kabiling, and M. H. Thiemens, First measurements and modeling of 17 O in atmospheric nitrate, Geophys. Res. Lett, vol.30, issue.1870, pp.1810-1129, 2003.

G. Michalski, J. K. Bohlke, and M. Thiemens, Long term atmospheric deposition as the source of nitrate and other salts in the Atacama Desert, Chile: New evidence from mass-independent oxygen isotopic compositions, Geochimica et Cosmochimica Acta, vol.68, issue.20, pp.68-4023, 2004.
DOI : 10.1016/j.gca.2004.04.009

G. Michalski, T. Meixner, M. Fenn, L. Hernandez, A. Sirulnik et al., O, Environmental Science & Technology, vol.38, issue.7, pp.2175-2181, 2004.
DOI : 10.1021/es034980+

URL : https://hal.archives-ouvertes.fr/hal-00086711

G. Michalski, J. G. Bockheim, C. Kendall, and M. Thiemens, sources and cycling in Antarctica, L13817, pp.13810-11029, 2005.
DOI : 10.1029/2004GL022121

C. E. Miller and Y. L. Yung, Photo-induced isotopic fractionation, Journal of Geophysical Research: Atmospheres, vol.94, issue.D12, pp.39-68, 2000.
DOI : 10.1029/2000JD900388

M. F. Miller, Isotopic fractionation and the quantification of O-17 anomalies in the oxygen three-isotope system: an appraisal and geochemical significance, Geochim. Cosmochim. Acta, issue.11, pp.66-1881, 2002.

K. Minschwaner, R. J. Salawitch, and M. B. Mcelroy, Absorption of solar radiation by O 2 : Implications for O 3 and lifetimes of N 2 O, CFCl 3 , and CF 2 Cl 2, J. Geophys. Res, vol.10, issue.D6, pp.98-543, 1993.

P. S. Monks, Gas-phase radical chemistry in the troposphere, Chemical Society Reviews, vol.10, issue.5, pp.376-395, 2005.
DOI : 10.1039/b307982c

H. Moore, Isotopic measurement of atmospheric nitrogencompounds , Tellus, pp.169-174, 1974.

H. Moore, The isotopic composition of ammonia, nitrogen dioxide and nitrate in the atmosphere, Atmospheric Environment (1967), vol.11, issue.12, pp.1239-1243, 1977.
DOI : 10.1016/0004-6981(77)90102-0

S. Morin, J. Savarino, S. Bekki, S. Gong, and J. W. Bottenheim, Signature of Arctic surface ozone depletion events in the isotope anomaly (&Delta;<sup>17</sup>O) of atmospheric nitrate, Atmospheric Chemistry and Physics, vol.7, issue.5, pp.1451-1469, 2007.
DOI : 10.5194/acp-7-1451-2007

R. Mulvaney, D. Wagenbach, and E. W. Wolff, Postdepositional change in snowpack nitrate from observation of year-round nearsurface snow in coastal Antarctica, J. Geophys. Res, vol.103, issue.11, pp.21-32, 1998.

G. Muscari, R. L. De-zafra, and S. Smyshlyaev, Evolution of the NO y -N 2 O correlation in the Antarctic stratosphere during, J. Geophys. Res, vol.108, issue.4428, pp.4410-1029, 1993.

K. Nakamura, M. Nakawo, Y. Ageta, K. Goto-azuma, and K. Kamiyama, Post-depositional loss of nitrate in surface snow layers of the Antarctic ice sheet, Bull. Glaciol. Res, vol.17, pp.11-16, 2000.

J. Neubauer and K. G. Heumann, Determination of nitrate at the ng/g level in Antarctic snow samples with Ion chromatography J. Savarino et al.: Isotopic constraints of atmospheric Antarctic nitrate and isotope-dilution mass-spectrometry, Fresenius Zeitschrift Fur Analytische Chemie, pp.170-173, 1988.

Y. J. Orsolini, G. L. Manney, M. L. Santee, R. , and C. E. , An upper stratospheric layer of enhanced HNO 3 following exceptional solar storms, Geophys. Res. Lett, pp.10-1029, 2005.

A. S. Palmer, T. V. Van-ommen, M. A. Curran, M. , and V. , Ice-core evidence for a small solar-source of atmospheric nitrate, Geophysical Research Letters, vol.103, issue.10, pp.1953-1956, 2001.
DOI : 10.1029/2000GL012207

F. Pichlmayer, W. Schoner, P. Seibert, W. Stichler, and D. Wagenbach, Stable isotope analysis for characterization of pollutants at high elevation alpine sites, Atmospheric Environment, vol.32, issue.23, pp.4075-4085, 1998.
DOI : 10.1016/S1352-2310(97)00405-6

S. Preunkert, M. Legrand, and D. Wagenbach, Sulfate trends in a Col du D??me (French Alps) ice core: A record of anthropogenic sulfate levels in the European midtroposphere over the twentieth century, Journal of Geophysical Research: Atmospheres, vol.26, issue.D23, pp.31-991, 2001.
DOI : 10.1029/2001JD000792

T. Rahn and M. Wahlen, Stable Isotope Enrichment in Stratospheric Nitrous Oxide, Science, vol.278, issue.5344, pp.1776-1778, 1997.
DOI : 10.1126/science.278.5344.1776

A. M. Rankin and E. W. Wolff, A year-long record of sizesegregated aerosol composition at Halley, Antarctica, J. Geophys . Res, vol.108, issue.D24, pp.47754710-1029, 2003.

A. Richter, F. Wittrock, A. Ladtsätter-weissenmayer, and J. P. Burrows, Gome measurements of stratospheric and tropospheric BrO, Advances in Space Research, vol.29, issue.11, pp.1667-1672, 2002.
DOI : 10.1016/S0273-1177(02)00123-0

K. Riedel, W. Allan, R. Weller, and O. Schrems, Discrepancies between formaldehyde measurements and methane oxidation model predictions in the Antarctic troposphere: An assessment of other possible formaldehyde sources, Journal of Geophysical Research, vol.104, issue.D7, pp.1530815310-11029, 2005.
DOI : 10.1029/2005JD005859

T. Röckmann, C. A. Brenninkmeijer, M. Wollenhaupt, J. N. Crowley, C. et al., O in the UV photolysis of nitrous oxide, Geophysical Research Letters, vol.3, issue.No. 1, pp.1399-1402, 2000.
DOI : 10.1029/1999GL011135

T. Röckmann, J. Kaiser, C. A. Brenninkmeijer, J. N. Crowley, R. Borchers et al., Isotopic enrichment of nitrous oxide ( 15 N 14 NO), ( 14 N 15 NO), ( 14 N 14 N 18 O) in the stratosphere and in the laboratory, J. Geophys. Res, vol.106, issue.10, pp.403-413, 2001.

T. Röckmann and I. Levin, High-precision determination of the changing isotopic composition of atmospheric N 2 O from, J. Geophys. Res, vol.110, pp.21310-21029, 1990.

R. Röthlisberger, M. A. Hutterli, S. Sommer, E. W. Wolff, and R. Mulvaney, Factors controlling nitrate in ice cores: Evidence from the Dome C deep ice core, Journal of Geophysical Research: Atmospheres, vol.23, issue.18, pp.565-585, 2000.
DOI : 10.1029/2000JD900264

R. Röthlisberger, M. A. Hutterli, E. W. Wolff, R. Mulvaney, H. Fischer et al., Nitrate in Greenland and Antarctic ice cores: a detailed description of postdepositional processes, pp.209-216, 2002.

K. M. Russel, J. N. Galloway, S. A. Macko, J. L. Moody, and J. R. Scudlark, Sources of nitrogen in wet deposition to the Chesapeake Bay region, Atmospheric Environment, vol.32, issue.14-15, pp.2453-2465, 1998.
DOI : 10.1016/S1352-2310(98)00044-2

S. P. Sander, R. R. Friedl, W. B. Demore, A. R. Ravishankara, D. M. Golden et al., Chemical kinetics and photochemical data for use in stratospheric modeling, supplement to evaluation 12: Update of key reactions, pp.0-003, 2000.

S. P. Sander, A. R. Ravishankara, D. M. Golden, C. E. Kolb, M. J. Kurylo et al., Chemical kinetics and photochemical data for use in atmospheric studies, pp.2-25, 2003.

V. Santacesaria, A. R. Mackenzie, and L. Stefanutti, A climatological study of polar stratospheric clouds (1989-1997) from LI- DAR measurements over Dumont d, pp.53-306, 2001.

M. L. Santee, G. L. Manney, N. J. Livesey, and W. G. Read, Three-dimensional structure and evolution of stratospheric HNO 3 based on UARS Microwave Limb Sounder measurements, J. Geophys. Res, pp.15310-11029, 2004.

M. Schaap, K. Muller, and H. M. Brink, Constructing the European aerosol nitrate concentration field from quality analysed data, Atmospheric Environment, vol.36, issue.8, pp.1323-1335, 2002.
DOI : 10.1016/S1352-2310(01)00556-8

D. E. Shallcross, P. Biggs, C. E. Canosamas, K. C. Clemitshaw, M. G. Harrison et al., Rate constants for the reaction between OH and CH 3 ONO 2 and C 2 H 5 ONO 2 over a range of pressure and temperature, J. Chem. Soc. Faraday Trans, issue.16, pp.93-2807, 1997.

D. M. Sigman, K. L. Casciotti, M. Andreani, C. Barford, M. Galanter et al., A Bacterial Method for the Nitrogen Isotopic Analysis of Nitrate in Seawater and Freshwater, Analytical Chemistry, vol.73, issue.17, pp.4145-4153, 2001.
DOI : 10.1021/ac010088e

G. P. Stiller, G. M. Tsidu, T. Von-clarmann, N. Glatthor, M. Hopfner et al., An enhanced HNO 3 second maximum in the Antarctic midwinter upper stratosphere, J. Geophys. Res, vol.110, 2003.

R. K. Talukdar, J. B. Burkholder, M. Hunter, M. K. Gilles, J. M. Roberts et al., Atmospheric fate of several alkyl nitrates .2. UV absorption cross-sections and photodissociation quantum yields, J. Chem. Soc. Faraday Trans, issue.16, pp.93-2797, 1997.

M. H. Thiemens, I. Heidenreich, and J. E. , The Mass-Independent Fractionation of Oxygen: A Novel Isotope Effect and Its Possible Cosmochemical Implications, Science, vol.219, issue.4588, pp.1073-1075, 1983.
DOI : 10.1126/science.219.4588.1073

M. H. Thiemens, Mass-Independent Isotope Effects in Planetary Atmospheres and the Early Solar System, Science, vol.283, issue.5400, pp.341-345, 1999.
DOI : 10.1126/science.283.5400.341

M. H. Thiemens, J. Savarino, H. Bao, and J. Farquhar, Mass-Independent Isotopic Compositions in Terrestrial and Extraterrestrial Solids and Their Applications, Accounts of Chemical Research, vol.34, issue.8, pp.645-652, 2001.
DOI : 10.1021/ar960224f

D. W. Toohey, W. H. Brune, A. , and J. G. , Rate constant for the reaction Br + O3 ? BrO + O2 from 248 to 418 K: Kinetics and mechanism, International Journal of Chemical Kinetics, vol.37, issue.2, pp.131-144, 1988.
DOI : 10.1002/kin.550200206

S. Toyoda, N. Yoshida, T. Urabe, Y. Nakayama, T. Suzuki et al., O isotopomers, Journal of Geophysical Research, vol.27, issue.16, p.8308, 2004.
DOI : 10.1029/2003JD004316

B. Tuzson, Symmetry specific study of ozone isotopomer formation, 2005.

R. Udisti, S. Becagli, S. Benassai, E. Castellano, I. Fattori et al., Atmosphere-snow interaction by a comparison between aerosol and uppermost snowlayers composition at Dome C, East Antarctica, pp.53-61, 2004.

R. Van-allen, X. Liu, F. K. Murcray, S. Stolte, J. B. Cross et al., Seasonal variation of atmospheric nitric acid over the South Pole in 1992 Evidence for two different transition states in the reaction of NO + O 3 ? NO 2 + O 2, Geophys. Res. Lett. J. Chem. Phys. Chem. Phys, vol.22, issue.89, pp.49-52, 1982.

R. Von-glasow, R. Von-kuhlmann, M. G. Lawrence, U. Platt, C. et al., Impact of reactive bromine chemistry in the troposphere, Atmospheric Chemistry and Physics, vol.4, issue.11/12, pp.2481-2497, 2004.
DOI : 10.5194/acp-4-2481-2004

URL : https://hal.archives-ouvertes.fr/hal-00301407

R. Von-glasow and P. J. Crutzen, Model study of multiphase DMS oxidation with a focus on halogens, Atmospheric Chemistry and Physics, vol.4, issue.3, pp.589-608, 2004.
DOI : 10.5194/acp-4-589-2004-supplement

URL : https://hal.archives-ouvertes.fr/hal-00301403

C. Von-savigny, E. P. Ulasi, K. U. Eichmann, H. Bovensmann, and J. P. Burrows, Detection and mapping of polar stratospheric clouds using limb scattering observations, Atmospheric Chemistry and Physics, vol.5, issue.11, pp.3071-3079, 2005.
DOI : 10.5194/acp-5-3071-2005

URL : https://hal.archives-ouvertes.fr/hal-00295785

E. Wada, R. Shibata, and T. Torii, N-15 abundance in Antarctica ? Origin of soil-nitrogen and ecological implications, Nature, issue.5821, pp.292-327, 1981.

D. Wagenbach, M. Legrand, H. Fischer, F. Pichlmayer, and E. W. Wolff, Atmospheric near-surface nitrate at coastal Antarctic sites, Journal of Geophysical Research: Atmospheres, vol.6, issue.D9, pp.7-11, 1998.
DOI : 10.1029/97JD03364

URL : http://epic.awi.de/3244/1/Wag1998b.pdf

P. Wagnon, R. J. Delmas, L. , and M. , Loss of volatile acid species from upper firn layers at Vostok, Antarctica, Journal of Geophysical Research: Atmospheres, vol.23, issue.D3, pp.3423-3431, 1999.
DOI : 10.1029/98JD02855

P. Warneck, Chemistry of the natural atmosphere, 2000.

P. Warneck, Chemistry of the natural atmosphere, 1988.

R. Weller, A. E. Jones, A. Wille, H. W. Jacobi, H. P. Mcintyre et al., ) at Neumayer Station, Antarctica, Journal of Geophysical Research: Atmospheres, vol.27, issue.D23, pp.46734610-1029, 2002.
DOI : 10.1029/2002JD002495

R. E. Weston, When Is an Isotope Effect Non-Mass Dependent?, Journal of Nuclear Science and Technology, vol.99, issue.4, pp.295-299, 2006.
DOI : 10.1080/18811248.2006.9711092

E. Wolff, M. Legrand, and D. Wagenbach, Coastal Antarctic aerosol and snowfall chemistry, Journal of Geophysical Research: Atmospheres, vol.103, issue.D9, pp.927-937, 1998.
DOI : 10.1029/97JD03454

E. Wolff and R. Delmas, Nitrate in Polar Ice, pp.195-224, 1995.
DOI : 10.1007/978-3-642-51172-1_10

URL : https://hal.archives-ouvertes.fr/hal-00304242

E. W. Wolff, A. E. Jones, T. J. Martin, and T. C. Grenfell, Modelling photochemical NO x production and nitrate loss in the upper snowpack of Antarctica, Geophys. Res. Lett, vol.29, issue.20, 1029.

E. Young, A. Galy, and H. Nagahara, Kinetic and equilibrium mass-dependent isotope fractionation laws in nature and their geochemical and cosmochemical significance, Geochimica et Cosmochimica Acta, vol.66, issue.6, pp.1095-1104, 2002.
DOI : 10.1016/S0016-7037(01)00832-8

A. Zahn, P. Franz, C. Bechtel, J. Grooß, and T. And-röckmann, Modelling the budget of middle atmospheric water vapour isotopes, Atmospheric Chemistry and Physics, vol.6, issue.8, 2006.
DOI : 10.5194/acp-6-2073-2006

URL : https://hal.archives-ouvertes.fr/hal-00295940

E. J. Zeller and B. C. Parker, Nitrate ion in Antarctic firn as a marker for solar activity, Geophysical Research Letters, vol.287, issue.A12, pp.895-898, 1981.
DOI : 10.1029/GL008i008p00895

H. Zhang, P. O. Wennberg, V. H. Wu, and G. A. Blake, Fractionation of (NNO)-N-14-N-15-O-16 and (NNO)-N-15-N-14-O-16 during photolysis at 213 nm, Geophys. Res. Lett, issue.16, pp.27-2481, 2000.

. Www, atmos-chem-phys, Atmos. Chem. Phys, vol.7, issue.7, pp.1925-1945, 1925.