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Validation of the Aura Microwave Limb Sounder middle atmosphere water vapor and nitrous oxide measurements

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dc.contributor.author Lambert, A.
dc.contributor.author Read, W. G.
dc.contributor.author Livesey, N. J.
dc.contributor.author Santee, M. L.
dc.contributor.author Manney, G. L.
dc.contributor.author Froidevaux, L.
dc.contributor.author Wu, D. L.
dc.contributor.author Schwartz, M. J.
dc.contributor.author Pumphrey, H. C.
dc.contributor.author Jimenez, C.
dc.contributor.author Nedoluha, G. E.
dc.contributor.author Cofield, R. E.
dc.contributor.author Cuddy, D. T.
dc.contributor.author Daffer, W. H.
dc.contributor.author Drouin, B. J.
dc.contributor.author Fuller, R. A.
dc.contributor.author Jarnot, R. F.
dc.contributor.author Knosp, B. W.
dc.contributor.author Pickett, H. M.
dc.contributor.author Perun, V. S.
dc.contributor.author Snyder, W. V.
dc.contributor.author Stek, P. C.
dc.contributor.author Thurstans, R. P.
dc.contributor.author Wagner, P. A.
dc.contributor.author Waters, J. W.
dc.contributor.author Jucks, K. W.
dc.contributor.author Toon, G. C.
dc.contributor.author Stachnik, R. A.
dc.contributor.author Bernath, P. F.
dc.contributor.author Boone, C. D.
dc.contributor.author Walker, K. A.
dc.contributor.author Urban, J.
dc.contributor.author Murtagh, D.
dc.contributor.author Elkins, J. W.
dc.contributor.author Atlas, E.
dc.date.accessioned 2008-10-21T21:08:44Z
dc.date.available 2008-10-21T21:08:44Z
dc.date.issued 2007-12-05
dc.identifier.citation Journal of Geophysical Research, Vol. 112, D24S36, doi:10.1029/2007JD008724, 2007 en_US
dc.identifier.clearanceno 07-1048
dc.identifier.uri http://hdl.handle.net/2014/40992
dc.description.abstract 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 H2O 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 H2O 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 N2O 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 N2O data is from 100 to 1 hPa. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher American Geophysical Union. en_US
dc.subject middle atmosphere en_US
dc.subject Aura Microwave Limb Sounder en_US
dc.subject remote sensing en_US
dc.title Validation of the Aura Microwave Limb Sounder middle atmosphere water vapor and nitrous oxide measurements en_US
dc.type Article en_US


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