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Characterizing samp...
Characterizing sampling biases in the trace gas climatologies of the SPARC Data Initiative
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- Toohey, M. (author)
- Helmholtz Zentrum,Helmholtz Center
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- Hegglin, M. I. (author)
- University of Reading
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- Tegtmeier, S. (author)
- Helmholtz Zentrum,Helmholtz Center
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- Anderson, J. (author)
- Hampton University
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- Anel, J.A. (author)
- Universidad de Vigo,University of Vigo,University Of Oxford
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- Bourassa, A. (author)
- University of Saskatchewan
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- Brohede, Samuel, 1977 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Degenstein, D. (author)
- University of Saskatchewan
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Froidevaux, L. (author)
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Fuller, R. (author)
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- Funke, B. (author)
- Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
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- Gille, J. (author)
- National Center for Atmospheric Research,University of Colorado at Boulder
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- Jones, A. (author)
- University of Toronto
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- Kasai, Y. (author)
- Japan National Institute of Information and Communications Technology (NICT)
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- Krüger, K. (author)
- Universitetet i Oslo,University of Oslo,Helmholtz Zentrum,Helmholtz Center
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- Kyrölä, E. (author)
- Illmatieteen Laitos,Finnish Meteorological Institute (FMI)
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Neu, J.L. (author)
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- Rozanov, A. (author)
- Universität Bremen
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- Smith, L. (author)
- National Center for Atmospheric Research
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- Urban, Joachim, 1964 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- von Clarmann, T. (author)
- Karlsruher Institut für Technologie (KIT),Karlsruhe Institute of Technology (KIT)
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- Walker, K.A. (author)
- University of Toronto
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- Wang, R.H.J. (author)
- Georgia Institute of Technology
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(creator_code:org_t)
- 2013-10-21
- 2013
- English.
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In: Journal of Geophysical Research. - : American Geophysical Union (AGU). - 0148-0227 .- 2156-2202 .- 2169-897X .- 2169-8996. ; 118:20, s. 11847-11862
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Abstract
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- Monthly zonal mean climatologies of atmospheric measurements from satellite instruments can have biases due to the nonuniform sampling of the atmosphere by the instruments. We characterize potential sampling biases in stratospheric trace gas climatologies of the Stratospheric Processes and Their Role in Climate (SPARC) Data Initiative using chemical fields from a chemistry climate model simulation and sampling patterns from 16 satellite-borne instruments. The exercise is performed for the long-lived stratospheric trace gases O3 and H2O. Monthly sampling biases for O3 exceed 10% for many instruments in the high-latitude stratosphere and in the upper troposphere/lower stratosphere, while annual mean sampling biases reach values of up to 20% in the same regions for some instruments. Sampling biases for H2O are generally smaller than for O3, although still notable in the upper troposphere/lower stratosphere and Southern Hemisphere high latitudes. The most important mechanism leading to monthly sampling bias is nonuniform temporal sampling, i.e., the fact that for many instruments, monthly means are produced from measurements which span less than the full month in question. Similarly, annual mean sampling biases are well explained by nonuniformity in the month-to-month sampling by different instruments. Nonuniform sampling in latitude and longitude are shown to also lead to nonnegligible sampling biases, which are most relevant for climatologies which are otherwise free of biases due to nonuniform temporal sampling.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Toohey, M.
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Hegglin, M. I.
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Tegtmeier, S.
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Anderson, J.
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Anel, J.A.
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Bourassa, A.
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show more...
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Brohede, Samuel, ...
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Degenstein, D.
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Froidevaux, L.
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Fuller, R.
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Funke, B.
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Gille, J.
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Jones, A.
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Kasai, Y.
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Krüger, K.
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Kyrölä, E.
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Neu, J.L.
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Rozanov, A.
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Smith, L.
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Urban, Joachim, ...
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von Clarmann, T.
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Walker, K.A.
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Wang, R.H.J.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Meteorology and ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Climate Research
- Articles in the publication
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Journal of Geoph ...
- By the university
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Chalmers University of Technology