Items where Author is "Schofield, Robyn"

Article

Kritten, L. , Butz, A. , Dorf, M. , Deutschmann, T. , Kühl, S. , Prados-Roman, C. , Pukite, J. , Rozanov, A. , Schofield, R. and Pfeilsticker, K. (2010)
Time dependent profile retrieval of UV/vis absorbing radicals from balloon-borne limb measurements a case study on NO2 and O3 ,

Atmos. Meas. Tech., 3 , pp. 933-946 .

doi:10.5194/amt-3-933-2010 , hdl:10013/epic.35556

Article

Salawitch, R. J. , Canty, T. , Müller, R. , Santee, M. L. , Schofield, R. , Stimpfle, R. M. , Stroh, F. , Toohey, D. W. and Urban, J. (2009)
Section 3. Workshop Report: The Role of Halogen Chemistry in Polar Stratospheric Ozone Depletion ,

June 2008 Cambridge, UK Workshop for an Initiative under the Stratospheric Processes and Their Role in Climate (SPARC) Project of the World Climate Research Programme. .

hdl:10013/epic.35896

Preview

Article

de Forster, P. M. , Bodeker, G. , Schofield, R. , Solomon, S. and Thompson, D. (2007)
Effects of ozone cooling in the tropical lower stratosphere and upper troposphere ,

Geophysical Research Letters. 34, L23813 .

doi:10.1029/2007GL031994 , hdl:10013/epic.28778

Article

Langford, A. O. , Schofield, R. , Daniel, J. S. , Portmann, R. W. , Melamed, M. , Miller, H. , Dutton, E. G. and Solomon, S. (2007)
On the variability of the Ring effect in the near ultraviolet: understanding the role of aerosols and multiple scattering ,

Atmos. Chem. Phys., 7, 575-586, 7 , pp. 575-586 .

hdl:10013/epic.26983

Article

Schofield, R. , Daniel, J. S. , Portmann, R. W. , Miller, H. L. , Solomon, S. , Eubank, C. S. , Melamed, M. L. , Langford, A. O. , Shupe, M. D. and Turner, D. D. (2007)
Retrieval of effective radius and liquid water path from ground-based instruments: A case study at Barrow, Alaska ,

Journal of Geophysical Research, 112 (D21) .

doi:https://www.doi.org/10.1029/2007jd008737 , hdl:10013/epic.28427

Article

Daniel, J. S. , Portmann, R. W. , Miller, H. , Solomon, S. , Langford, A. O. , Eubank, C. S. , Schofield, R. , Turner, D. D. and Shupe, M. D. (2006)
Cloud property estimates from zenith spectral measurements of scattered sunlight between 0.9 and 1.7 um ,

Journal of Geophysical Research,111,D16208. .

doi:10.1029/2005JD006641 , hdl:10013/epic.26017

Article

Hendrick, F. , Van Roozendael, M. , Kylling, A. , Petritoli, A. , Rozanov, A. , Sanghavi, S. , Schofield, R. , von Friedeburg, C. , Wagner, T. , Wittrock, F. , Fonteyn, D. and De Maziere, M. (2006)
Intercomparison exercise between different radiative transfer models used for the interpretation of ground-based zenith-sky and multi-axis DOAS observations ,

Atmospheric Chemistry and Physics, 6, 93108, 6 , pp. 93-108 .

hdl:10013/epic.26015

Article

Verlinde, J. , Harrington, J. Y. , McFarquhar, G. M. , Yannuzzi, V. T. , Avramov, A. , Greenberg, S. , Johnson, N. , Zhang, G. , Poellot, M. R. , Mather, J. H. , Turner, D. D. , Eloranta, E. W. , Zak, B. D. , Prenni, A. J. , Daniel, J. S. , Kok, G. L. , Tobin, D. C. , Holz, R. , Sassen, K. , Spangenberg, D. , Minnis, P. , Tooman, T. P. , Ivey, M. D. , Bahrmann, C. P. , DeMott, P. J. , Heymsfield, A. J. and Schofield, R. (2006)
THE MIXED-PHASE ARCTIC CLOUD EXPERIMENT (M-PACE) ,

Bulletin of the American Meteorological Society, 88 (2), pp. 205-221 .

doi:10.1175/BAMS-88-2-205 , hdl:10013/epic.26805

Article

Schofield, R. , Johnston, P. V. , Thomas, A. , Kreher, K. , Connor, B. J. , Wood, S. , Shooter, D. , Chipperfield, M. P. , Richter, A. , von Glasow, R. and Rodgers, C. D. (2006)
Tropospheric and stratospheric BrO columns over Arrival Heights, Antarctica, 2002 ,

Journal of Geophysical Research, 111, D22310, doi:10.1029/2005JD007022. .

doi:10.1029/2005JD007022 , hdl:10013/epic.26014

Article

Struthers, H. , Kreher, K. , Austin, J. , Schofield, R. , Bodeker, G. , Johnston, P. V. , Shiona, H. and Thomas, A. (2004)
Past and future simulations of NO2 from a coupled chemistry-climate model in comparison with observations ,

Atmospheric Chemistry and Physics, 4. 2227-2239, 4 , pp. 2227-2239 .

hdl:10013/epic.26016

Article

Schofield, R. , Kreher, K. , Connor, B. J. , Johnston, P. V. , Thomas, A. , Shooter, D. , Chipperfield, M. P. , Rodgers, C. D. and Mount, G. H. (2004)
Retrieved tropospheric and stratospheric BrO columns over Lauder, New Zealand ,

JOURNAL OF GEOPHYSICAL RESEARCH,109,D14304. .

doi:10.1029/2003JD004463 , hdl:10013/epic.26022

Article

Schofield, R. , Connor, B. J. , Kreher, K. , Johnston, P. V. and Rodgers, C. D. (2004)
The retrieval of profille and chemical information from ground-based UV-visible spectroscopic measurements ,

Journal of Quantitative Spectroscopy & Radiative Transfer, 86 , pp. 115-131 .

hdl:10013/epic.26021

Article

Wetmore, S. D. , Schofield, R. , Smith, D. M. and Radom, L. (2001)
A Theoretical Investigation of the Effects of Electronegative Substitution on the Strength of C-H...N Hydrogen Bonds ,

Journal of Physical Chemistry, 105 , pp. 8718-8726 .

hdl:10013/epic.26018

Thesis -PhD

Schofield, R. (2003)
The Vertical Distribution of Atmospheric BrO from Ground-Based Measurements ,

PhD thesis, University of Auckland, New Zealand.

hdl:10013/epic.26019

Preview

Conference -Poster

Kremser, S. , Wohltmann, I.

, Rex, M.

, Notholt, J. , Bodeker, G. E. and Schofield, R. (2013)
How does the sulfur get into the stratosphere? ,

SSiRC Workshop, Atlanta, Georgia, United States, 28 October 2013 - 30 October 2013 .

hdl:10013/epic.42590

Conference -Poster

Kremser, S. , Wohltmann, I.

, Schofield, R. and Rex, M.

(2013)
How does tropospheric OH variability influence the transport of SO2 and COS from the surface to the stratosphere? A conceptual study ,

AMOS National Conference, Melbourne, Australia, 11 February 2013 - 13 February 2013 .

hdl:10013/epic.41190

Conference -Poster

Kremser, S. , Wohltmann, I.

, Rex, M.

and Schofield, R. (2012)
How does tropospheric OH influence the transport of SO2 from the surface to the stratosphere? - A conceptual study ,

12th IGAC Open Science Conference, Beijing, 17 September 2012 - 21 September 2012 .

hdl:10013/epic.40093

Conference -Invited talk

Schofield, R. (2010)
Atmospheric composition and kinetic parameters derived from spectroscopic and in situ measurements ,

Chemistry Department Seminar, Victoria University of Wellington, New ZealandJanuary. .

hdl:10013/epic.35897

Conference -Poster

Schofield, R. , Fueglistaler, S. , Wohltmann, I.

and Rex, M.

(2010)
Conceptual Study of Water Vapor and Bry Transport Across the Tropical Transition Layer ,

12th Symposium of the International Commission on Atmospheric Chemistry and Global Pollution (CACGP) and 11th Science Conference of the International Global Atmosphere Chemistry (IGAC) Project, Halifax, Canada, July .

hdl:10013/epic.35768

Conference -Talk

Avallone, L. , Kalnajs, L. and Schofield, R. (2010)
In Situ Measurements of Stratospheric Ozone on Long-Duration Balloons during Concordiasi ,

Concordiasi Workshop, Toulouse 29-31 March. .

hdl:10013/epic.35769

Conference -Talk

Wohltmann, I.

, Schofield, R. , Tegtmeier, S. , Kremser, S. , Lehmann, R. and Rex, M.

(2010)
Lagrangian modelling of VSLS transport and chemistry ,

SHIVA Annual Meeting, 5-6 July 2010, Paris. .

hdl:10013/epic.36184

Conference -Poster

Hay, T. , Kreher, K. , Johnston, P. V. , Bodeker, G. E. , Schofield, R. , Thomas, A. , McDonald, A. and Martinez-Aviles, M. (2010)
Profiling of MAX-DOAS BrO measurements from Antarctica and NO2 measurements from CINDI ,

EGU General Assembly 2010, Vienna 2-7 May. .

hdl:10013/epic.35766

Conference -Poster

Martinez-Aviles, M. , Kreher, K. , Johnston, P. V. , Thomas, A. , Hay, T. , Schofield, R. and Kenntner, M. (2010)
Sources of Halogen Oxides Along the Coastline of New Zealand: A Field Measurement Study ,

EGU General Assembly 2010, Vienna 2-7 May. .

hdl:10013/epic.35767

Conference -Talk

Kreher, K. , Johnston, P. V. , Hay, T. , Liley, B. , Thomas, A. , Martinez-Aviles, M. , Friess, U. , Bodeker, G. E. , Schofield, R. and Van Roozendael, M. (2010)
Techniques for analysing Ground-based UV-Visible Long-term BrO and NO2 observations for satellite validation and trend analysis ,

38th COSPAR Scientific Assembly, Bremen, GermanyJuly. .

hdl:10013/epic.35765

Conference -Invited talk

Schofield, R. , Fueglistaler, S. , Wohltmann, I.

and Rex, M.

(2010)
A concept study: The sensitivity of stratospheric Bry to uncertainties in short lived substance emissions and atmospheric transport ,

Ocean Circulation and Climate Dynamics Seminar, IFM-Geomar, Kielth October. .

hdl:10013/epic.36194

Conference -Talk

Adams, C. , Fraser, A. , Strong, K. and Schofield, R. (2009)
BrO Retrievals for UV-Visible Ground-Based Measurements ,

ARC-IONS Workshop, TorontoJan. .

hdl:10013/epic.35554

Conference -Poster

Kremser, S. , Schofield, R. , Connor, B. J. , Bodeker, G. E. , Barret, J. , Canty, T. , Salawitch, R. , Rex, M.

, Langematz, U. and Chipperfield, M. (2009)
The Diurnal and Seasonal Evolution of Chlorine Monoxide and its Implications for ClO Dimer Chemistry ,

MOCA-09 Joint Assembly, 19-24 July, Montréal, Québec, Canada. .

hdl:10013/epic.34122

Conference -Poster

Martinez-Aviles, M. , Kreher, K. , Hay, T. , Thomas, A. , Johnston, P. V. and Schofield, R. (2009)
Emissions of Bromine and Iodine from the Marine Environment in New Zealand ,

AGU Fall Meeting, 1418 December, San Francisco. .

hdl:10013/epic.34118

Conference -Talk

Adams, C. , Fraser, A. , Strong, K. , Chance, K. , Kurosu, T. and Schofield, R. (2009)
Ground-based BrO measurements above Eureka, Nunavut during spring 2008 ,

AGU Joint Assembly, Toronto27 May 2009. .

hdl:10013/epic.34116

Conference -Talk

Canty, T. , Salawitch, R. , Stimpfle, R. , Wilmouth, D. , Anderson, J. , von Hobe, M. , Stroh, F. , Rex, M.

and Schofield, R. (2009)
The Impact of Recent Laboratory Measurements of the ClOOCl Cross Section on Our Understanding of Polar Ozone Chemistry ,

MOCA-09 Joint Assembly,19 to 24 July, Montréal, Canada. .

hdl:10013/epic.34121

Conference -Talk

Adams, C. , Fraser, A. , Strong, K. , Park, J. , McLinden, C. A. , Chance, K. , Kurosu, T. and Schofield, R. (2009)
Measurements of atmospheric bromine-monoxide at 80°N during Spring 2008 ,

ArcticNets sixth Annual Scientific Meeting, 8 to 11 December, Victoria, British Columbia. .

hdl:10013/epic.34120

Conference -Talk

Bodeker, G. E. , Hay, T. D. , Kreher, K. , Schofield, R. , Scherer, M. and McDonald, A. (2009)
The NIMO Monte Carlo Radiative Transfer Model for MAX-DOAS Air-Mass Factor and Radiance Calculations ,

MOCA-09, Joint Assembly, 19-24 July, Montréal, Québec, Canada. .

hdl:10013/epic.34123

Conference -Invited talk

Rex, M.

, Schofield, R. , Canty, T. and Salawitch, R. J. (2009)
On Our Understanding of Ozone Loss Rates in the Polar Vortex: Models and Measurements ,

American Chemical Society, Spring 2009 National Meeting & Exposition, March 22-26, 2009,Salt Lake City, UT, USA. .

hdl:10013/epic.32301

Conference -Invited talk

Rex, M.

, Schofield, R. , Canty, T. and Salawitch, R. J. (2009)
Polar Ozone Chemistry: Field Observations and Ozone Loss Rates ,

MOCA-09 - IAMAS, IAPSO, IACS joint assembly, July 19-29, Montreal, Canada. .

hdl:10013/epic.32302

Conference -Talk

Adams, C. , Fraser, A. , Strong, K. , Park, D. , McLinden, C. A. , Chance, K. , Kurosu, T. and Schofield, R. (2009)
easurements of atmospheric bromine monoxide at 80N during spring 2008 ,

2nd Annual ISAC Open Meeting, 14 December, San Francisco. .

hdl:10013/epic.34117

Conference -Invited talk

Schofield, R. (2008)
BrO and ClO studies ,

University of Heidelberg .

hdl:10013/epic.28783

Conference -Talk

Schofield, R. , Frieler, K. , Wohltmann, I.

, Rex, M.

, Canty, T. , Salawitch, R. , von Hobe, M. , Stroh, F. , Butz, A. , Dorf, M. and Pfeilsticker, K. (2008)
Chlorine Kinetics Review and Recent Results from OClO and the Self-Match flight ,

SPARC Workshop on The Role of Halogen Chemistry in Polar Stratospheric Ozone Depletion Cambridgeth-19th June 2008. .

hdl:10013/epic.34119

Conference -Poster

Schofield, R. , Fueglistaler, S. , Wohltmann, I.

and Rex, M.

(2008)
Conceptual investigation of the interaction of water vapor and Bry transport across the tropical transition layer ,

SPARC 4th General Assembly, 31 August - 5 September 2008, Bologna, Italy. .

hdl:10013/epic.31048

Conference -Talk

Rex, M.

, Schofield, R. , Salawitch, R. and Canty, T. (2008)
If Pope et al. is correct, how might ClOOCl be lost? ,

SPARC Workshop on The Role of Halogen Chemistry in Polar Stratospheric Ozone Depletion Cambridgeth June 2008. .

hdl:10013/epic.30944

Conference -Paper

Salawitch, R. , Canty, T. , Stimpfle, R. , Wilmouth, D. , Anderson, J. G. , von Hobe, M. , Stroh, F. , Rex, M. , Schofield, R. , Santee, M. , Kinnison, D. E. , Kurylo, M. J. and Sinnhuber, B. M. (2008)
Impact of recent laboratory measurements of the ClOOCl cross section on our understanding of polar ozone chemistry ,

SPARC 4th General Assembly, 31 August - 5 September 2008, Bologna, Italy. .

hdl:10013/epic.31049

Conference -Poster

Hay, T. , Kreher, K. , Johnston, P. , Thomas, A. , Riedel, K. , Schofield, R. and McDonald, A. (2008)
MAX-DOAS measurements of bromine explosion events in McMurdo Sound, Antarctica ,

IGAC 10th International Conference: Bridging the scales in Atmospheric Chemistry: Local to Global, 7 to 12 September 2008 in Annecy, France. .

hdl:10013/epic.31050

Conference -Poster

Hay, T. , Kreher, K. , Reidel, K. , Johnston, P. , Thomas, A. , Schofield, R. and McDonald, A. (2008)
Max-DOAS measurements of bromine explosion events in McMurdo Sound, Antarctica ,

EGU General Assembly 2008, Vienna.. .

hdl:10013/epic.30368

Conference -Poster

Schofield, R. , Wohltmann, I.

and Rex, M.

(2008)
Microphysical Model Details for Trajectory Studies of Water Vapor Transport Across the Tropical Tropopause Layer ,

AGU Chapman Conference on on Atmospheric Water Vapor and Its Role in Climate, Kailua-Kona, HawaiiOctober .

hdl:10013/epic.35555

Conference -Talk

Rex, M.

, Frieler, K. , Schofield, R. , Salawitch, R. and Canty, T. (2008)
On Our Understanding of Ozone Loss Rates in the Polar Vortex: Models and Measurements ,

SPARC Workshop on The Role of Halogen Chemistry in Polar Stratospheric Ozone Depletion Cambridgeth June 2008. .

hdl:10013/epic.30943

Conference -Talk

Canty, T. , Salawitch, R. , Rex, M.

, Santee, M. , Schofield, R. , Stimpfle, R. , Stroh, F. , von Hobe, M. and Wilmouth, D. (2008)
On our Understanding of Chlorine Partitioning and Ozone Loss in the Polar Vortex: Models and Measurements ,

SPARC Workshop on The Role of Halogen Chemistry in Polar Stratospheric Ozone Depletion Cambridgeth June 2008. .

hdl:10013/epic.30942

Conference -Poster

Kaiser, B. , Schofield, R. , Lantuit, H.

, Sachs, T. , Richter, A. , Würzberg, L. and Haase, D. (2008)
Polarjugend.de - Eine IPJ Bildungsinitiative von APECS Deutschland ,

23. Internationale Polartagung, Münster. .

hdl:10013/epic.28619

Conference -Poster

Schofield, R. , Frieler, K. , Wohltmann, I.

, Rex, M.

, von Hobe, M. , Stroh, F. , Koch, G. , Peter, T. , Canty, T. , Salawitch, R. and Volk, C. M. (2008)
Retrieval of chlorine kinetics from a self-match flight ,

Quadrennial Ozone Symposium, Tromsø, NorwayJune - 5th July 2008. .

hdl:10013/epic.30945

Conference -Talk

Adams, C. , Fraser, A. , Strong, K. and Schofield, R. (2008)
Stratospheric BrO measured with a Ground-Based, UV-Visible Spectrometer above Eureka, Nunavut ,

ARCTAS BrO Workshop, Toronto, Oct 3. .

hdl:10013/epic.34115

Conference -Poster

Kritten, L. , Butz, A. , Deutschmann, T. , Dorf, M. , Grunow, K. , Oelhaf, H. , Prados Roman, C. , Schofield, R. , Wetzel, G. and Pfeilsticker, K. (2008)
Time Resolved Profiling of HONO by Balloon-borne Skylight Limb Observations ,

EGU General Assembly 2008, Vienna.. .

hdl:10013/epic.30369

Conference -Invited talk

Schofield, R. (2007)
Atmospheric BrO and ClO studies ,

Institut für Meteorologie, Freie Universität Berlin .

hdl:10013/epic.28782

Conference -Invited talk

Schofield, R. (2007)
BrO and why we care about 0 or 8 ppt? ,

University of Toronto. .

hdl:10013/epic.28441

Conference -Poster

Schofield, R. , Frieler, K. , Rex, M.

, Wohltmann, I.

, Hobe, M. , Stroh, F. , Koch, G. , Peter, T. , Canty, T. and Salawitch, R. (2007)
Chlorine kinetics examination using the Self-Match flight during EUPLEX II 2003 ,

SCOUT-O3 Annual Meeting, Heraklion, Crete. .

hdl:10013/epic.26694

Conference -Poster

Schofield, R. , Frieler, K. , Wohltmann, I.

, Rex, M.

, von Hobe, M. , Stroh, F. , Canty, T. , Salawitch, R. , Koch, G. , Peter, T. and Volk, C. M. (2007)
Chlorine kinetics examination using the Self-Match flight during EUPLEX II 2003 ,

Regional SPARC Science Workshop, Bremen 17-18 September. .

hdl:10013/epic.28449

Conference -Talk

Schofield, R. , Frieler, K. , Rex, M.

, Wohltmann, I.

, von Hobe, M. , Stroh, F. , Koch, G. , Peter, T. , Canty, T. and Salawitch, R. (2007)
ClO Match: An examination of chlorine kinetics using the self-Match flight during EUPLEX II 2003 ,

EGU General Assembly 2007, Vienna. .

hdl:10013/epic.26369

Conference -Poster

Rex, M.

, Schofield, R. , Canty, T. , Salawitch, R. and Bayes, K. (2007)
Impact of recent Laboratory Measurements of the Absorption Cross Section of ClOOCl on our Understanding of polar Ozone Chemistry: Part I, Theory ,

American Meteorological Society, 14th Conference on Middle Atmosphere, (20-24 August) Portland, OR. .

hdl:10013/epic.27101

Conference -Talk

Rex, M.

, Schofield, R. , Canty, T. , Salawitch, R. J. and Bayes, K. (2007)
Impact of recent laboratory measurements of the absorption cross section of ClOOCl on our understanding of polar ozone chemistry: Part I, Theory ,

American Meteorological Society, General Assembly 2007, Portland, Oregon, USA. .

hdl:10013/epic.28132

Conference -Poster

Canty, T. , Salawitch, R. , Stimpfle, R. , Wilmouth, D. , Schofield, R. and Rex, M.

(2007)
Impact of recent laboratory measurements of the absorption cross section of ClOOCl on our understanding of polar ozone chemistry: Part II, Modeled and Measured ClOx during SOLVE ,

American Meteorological Society: 14th Conference on Middle Atmosphere, (20-24 August) Portland, OR. .

hdl:10013/epic.27100

Conference -Talk

Rex, M.

, Lehmann, R. , Schofield, R. , Salawitch, R. J. and Canty, T. (2007)
Is a major fraction of polar ozone loss due to a currently unknown mechanism ? ,

SCOUT O3 Workshop, Crete, Greece .

hdl:10013/epic.28135

Conference -Talk

Rex, M.

, Schofield, R. , Lehmann, R. , Frieler, K. , Wohltmann, I.

, von Hobe, M. , Stroh, F. , Koch, G. , Peter, T. , Salawitch, R. and Canty, T. (2007)
Is a major fraction of polar ozone loss due to a currently unknown mechanism? ,

Regional Sparc Workshop, Bremen (17-18th September) - www.iup.uni-bremen.de/sciamachy/sparc/510946997209bfc02/index.html. .

hdl:10013/epic.28450

Conference -Poster

Sachs, T. , Kaiser, B. , Richter, A. , Schofield, R. , Lantuit, H.

, Salmon, R. and Haase, D. (2007)
Polarjugend.de - an IPY Education and Outreach Project of the German Youth Steering Committee ,

American Geophysical Union Fall Meeting, San Francisco, CA, Dec .

hdl:10013/epic.28742

Conference -Talk

Schofield, R. , Frieler, K. , Wohltmann, I.

, Rex, M.

, von Hobe, M. , Stroh, F. , Koch, G. , Peter, T. , Canty, T. and Salawitch, R. (2007)
Self Match Flight during EUPLEX II 2003 - ClO Match': An examination of chlorine kinetics ,

American Meteorological Society: 14th Conference on Middle Atmosphere, (20-24 August 2007) (Portland, OR). .

hdl:10013/epic.27099

Conference -Poster

Kreher, K. , Wurst, M. , Friess, U. , Dix, B. , Schofield, R. , Riedel, K. , Oltmans, S. , Bodeker, G. , Wood, S. and Connor, B. (2006)
Bromine explosion events observed at Arrival Heights, Antarctica, since 1995 ,

European Geosciences Union 02 07 April 2006, Vienna, Austria, (Geophysical Research Abstracts, Vol. 8, 05358. .

hdl:10013/epic.30797