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Validation of the A...
Validation of the Aura Microwave Limb Sounder middle atmosphere water vapor and nitrous oxide measurements
- Article/chapterEnglish2007
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LIBRIS-ID:oai:research.chalmers.se:9f7bee1a-a754-4868-8ceb-896f0abe005a
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https://doi.org/10.1029/2007JD008724DOI
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https://research.chalmers.se/publication/62912URI
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
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The quality of the version 2.2 (v2.2) middle atmosphere water vapor and nitrous oxide measurements from the Microwave Limb Sounder (MLS) on the Earth Observing System (EOS) Aura satellite is assessed. The impacts of the various sources of systematic error are estimated by a comprehensive set of retrieval simulations. Comparisons with correlative data sets from ground-based, balloon and satellite platforms operating in the UV/ visible, infrared and microwave regions of the spectrum are performed. Precision estimates are also validated, and recommendations are given on the data usage. The v2.2 H 2 O data have been improved over v1.5 by providing higher vertical resolution in the lower stratosphere and better precision above the stratopause. The single-profile precision is ∼0.2-0.3 ppmv (4-9%), and the vertical resolution is ∼3-4 km in the stratosphere. The precision and vertical resolution become worse with increasing height above the stratopause. Over the pressure range 0.1-0.01 hPa the precision degrades from 0.4 to 1.1 ppmv (6-34%), and the vertical resolution degrades to ∼12-16 km. The accuracy is estimated to be 0.2-0.5 ppmv (4-11%) for the pressure range 68-0.01 hPa. The scientifically useful range of the H 2 O data is from 316 to 0.002 hPa, although only the 82-0.002 hPa pressure range is validated here. Substantial improvement has been achieved in the v2.2 N 2 O data over v1.5 by reducing a significant low bias in the stratosphere and eliminating unrealistically high biased mixing ratios in the polar regions. The single-profile precision is ∼13-25 ppbv (7-38%), the vertical resolution is ∼4-6 km and the accuracy is estimated to be 3-70 ppbv (9-25%) for the pressure range 100-4.6 hPa. The scientifically useful range of the N 2 O data is from 100 to 1 hPa. Copyright 2007 by the American Geophysical Union.
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Read, W.G.
(author)
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Livesey, N.J.
(author)
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Santee, M.L.
(author)
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Manney, G.L.New Mexico Institute of Mining and Technology
(author)
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Froidevaux, L.
(author)
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Wu, D.L.
(author)
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Schwartz, M.J.
(author)
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Pumphrey, H.C.University of Edinburgh
(author)
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Jimenez, C.University of Edinburgh
(author)
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Nedoluha, G.E.Naval Research Laboratory
(author)
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Coeld, R.E.
(author)
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Cuddy, D.T.
(author)
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Daffer, W.H.
(author)
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Drouin, B.J.
(author)
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Fuller, R.A.
(author)
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Jarnot, R.F.
(author)
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Knosp, B.W.
(author)
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Pickett, H.M.
(author)
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Perun, V.S.
(author)
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Snyder, W.V.
(author)
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Stek, P.C.
(author)
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Thurstans, R.P.
(author)
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Wagner, P.A.
(author)
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Waters, J.W.
(author)
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Jucks, K.W.Harvard-Smithsonian Center for Astrophysics
(author)
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Toon, G.C.
(author)
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Stachnik, R.A.
(author)
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Bernath, P.F.University of Waterloo,University of York
(author)
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Boone, C.D.University of Waterloo
(author)
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Walker, K.A.University of Toronto,University of Waterloo
(author)
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Urban, Joachim,1964Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)joaurb
(author)
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Murtagh, Donal,1959Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)donal
(author)
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Elkins, J.W.National Oceanic and Atmospheric Administration
(author)
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Atlas, E.University of Miami
(author)
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New Mexico Institute of Mining and TechnologyUniversity of Edinburgh
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In:Journal of Geophysical Research112:D240148-02272156-2202
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Lambert, A.
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Read, W.G.
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Livesey, N.J.
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Santee, M.L.
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Manney, G.L.
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Froidevaux, L.
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show more...
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Wu, D.L.
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Schwartz, M.J.
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Pumphrey, H.C.
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Jimenez, C.
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Nedoluha, G.E.
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Coeld, R.E.
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Cuddy, D.T.
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Daffer, W.H.
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Drouin, B.J.
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Fuller, R.A.
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Jarnot, R.F.
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Knosp, B.W.
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Pickett, H.M.
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Perun, V.S.
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Snyder, W.V.
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Stek, P.C.
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Thurstans, R.P.
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Wagner, P.A.
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Waters, J.W.
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Jucks, K.W.
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Toon, G.C.
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Stachnik, R.A.
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Bernath, P.F.
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Boone, C.D.
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Walker, K.A.
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Urban, Joachim, ...
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Murtagh, Donal, ...
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Elkins, J.W.
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Atlas, E.
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Chalmers University of Technology