Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-8331-2018 |
Trend differences in lower stratospheric water vapour between Boulder and the zonal mean and their role in understanding fundamental observational discrepancies | |
Lossow, Stefan1,6; Hurst, Dale F.2; Rosenlof, Karen H.2; Stiller, Gabriele P.1; von Clarmann, Thomas1; Brinkop, Sabine3; Dameris, Martin3; Joeckel, Patrick3; Kinnison, Doug E.4; Plieninger, Johannes1; Plummer, David A.5; Ploeger, Felix6; Read, William G.7; Remsberg, Ellis E.8; Russell, James M.9; Tao, Mengchu6 | |
2018-07-14 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:11页码:8331-8351 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; USA; Canada |
英文摘要 | Trend estimates with different signs are reported in the literature for lower stratospheric water vapour considering the time period between the late 1980s and 2010. The NOAA (National Oceanic and Atmospheric Administration) frost point hygrometer (FPH) observations at Boulder (Colorado, 40.0 degrees N, 105.2 degrees W) indicate positive trends (about 0.1 to 0.45 ppmvdecade(-1)). On the contrary, negative trends (approximately -0.2 to -0.1 ppmvdecade(-1)) are derived from a merged zonal mean satellite data set for a latitude band around the Boulder latitude. Overall, the trend differences between the two data sets range from about 0.3 to 0.5 ppmvdecade(-1), depending on altitude. It has been proposed that a possible explanation for these discrepancies is a different temporal behaviour at Boulder and the zonal mean. In this work we investigate trend differences between Boulder and the zonal mean using primarily simulations from ECHAM/MESSy (European Centre for Medium-Range Weather Forecasts Hamburg/Modular Earth Submodel System) Atmospheric Chemistry (EMAC), WACCM (Whole Atmosphere Community Climate Model), CMAM (Canadian Middle Atmosphere Model) and CLaMS (Chemical Lagrangian Model of the Stratosphere). On shorter timescales we address this aspect also based on satellite observations from UARS/HALOE (Upper Atmosphere Research Satellite/Halogen Occultation Experiment), Envisat/MIPAS (Environmental Satellite/Michelson Interferometer for Passive Atmospheric Sounding) and Aura/MLS (Microwave Limb Sounder). Overall, both the simulations and observations exhibit trend differences between Boulder and the zonal mean. The differences are dependent on altitude and the time period considered. The model simulations indicate only small trend differences between Boulder and the zonal mean for the time period between the late 1980s and 2010. These are clearly not sufficient to explain the discrepancies between the trend estimates derived from the FPH observations and the merged zonal mean satellite data set. Unless the simulations underrepresent variability or the trend differences originate from smaller spatial and temporal scales than resolved by the model simulations, trends at Boulder for this time period should also be quite representative for the zonal mean and even other latitude bands. Trend differences for a decade of data are larger and need to be kept in mind when comparing results for Boulder and the zonal mean on this timescale. Beyond that, we find that the trend estimates for the time period between the late 1980s and 2010 also significantly differ among the simulations. They are larger than those derived from the merged satellite data set and smaller than the trend estimates derived from the FPH observations. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000435217000004 |
WOS关键词 | CLIMATE MODEL SIMULATIONS ; TECHNICAL NOTE ; MIDDLE ATMOSPHERE ; SATELLITE DATA ; CHEMISTRY ; SYSTEM ; OZONE ; REANALYSIS ; TRANSPORT ; ICE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26195 |
专题 | 地球科学 |
作者单位 | 1.Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Hermann von Helmholtz Pl 1, D-76344 Leopoldshafen, Germany; 2.NOAA, Earth Syst Res Lab, Global Monitoring Div, 325 Broadway, Boulder, CO 80305 USA; 3.Deutsch Zentrum Luft & Raumfahrt DLR, Inst Phys Atmosphare, D-82234 Oberpfaffenhofen, Germany; 4.Univ Colorado, Atmospher Chem Observat & Modeling Lab, POB 3000, Boulder, CO 80305 USA; 5.Environm & Climate Change Canada, Climate Res Branch, 550 Sherbrooke Ouest, Montreal, PQ H3A 1B9, Canada; 6.Forschungszentrum Julich, Inst Energy & Climate Res Stratosphere IEK 7, Leo Brandt Str, D-52425 Julich, Germany; 7.Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA; 8.NASA, Langley Res Ctr, 21 Langley Blvd, Hampton, VA 23681 USA; 9.Hampton Univ, Ctr Atmospher Sci, 23 Tyler St, Hampton, VA 23668 USA |
推荐引用方式 GB/T 7714 | Lossow, Stefan,Hurst, Dale F.,Rosenlof, Karen H.,et al. Trend differences in lower stratospheric water vapour between Boulder and the zonal mean and their role in understanding fundamental observational discrepancies[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(11):8331-8351. |
APA | Lossow, Stefan.,Hurst, Dale F..,Rosenlof, Karen H..,Stiller, Gabriele P..,von Clarmann, Thomas.,...&Tao, Mengchu.(2018).Trend differences in lower stratospheric water vapour between Boulder and the zonal mean and their role in understanding fundamental observational discrepancies.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(11),8331-8351. |
MLA | Lossow, Stefan,et al."Trend differences in lower stratospheric water vapour between Boulder and the zonal mean and their role in understanding fundamental observational discrepancies".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.11(2018):8331-8351. |
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