Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-11541-2017 |
Reanalysis comparisons of upper tropospheric-lower stratospheric jets and multiple tropopauses | |
Manney, Gloria L.1,2; Hegglin, Michaela I.3; Lawrence, Zachary D.2; Wargan, Krzysztof4,5; Millan, Luis F.6; Schwartz, Michael J.6; Santee, Michelle L.6; Lambert, Alyn6; Pawson, Steven4; Knosp, Brian W.6; Fuller, Ryan A.6; Daffer, William H.6 | |
2017-09-27 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:18 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; England |
英文摘要 | The representation of upper tropospheric-lower stratospheric (UTLS) jet and tropopause characteristics is compared in five modern high-resolution reanalyses for 1980 through 2014. Climatologies of upper tropospheric jet, subvortex jet (the lowermost part of the stratospheric vortex), and multiple tropopause frequency distributions in MERRA (Modern-Era Retrospective analysis for Research and Applications), ERA-I (ERA-Interim; the European Centre for Medium-RangeWeather Forecasts, ECMWF, interim reanalysis), JRA-55 (the Japanese 55-year Reanalysis), and CFSR (the Climate Forecast System Reanalysis) are compared with those in MERRA-2. Differences between alternate products from individual reanalysis systems are assessed; in particular, a comparison of CFSR data on model and pressure levels highlights the importance of vertical grid spacing. Most of the differences in distributions of UTLS jets and multiple tropopauses are consistent with the differences in assimilation model grids and resolution - for example, ERA-I (with coarsest native horizontal resolution) typically shows a significant low bias in upper tropospheric jets with respect to MERRA-2, and JRA-55 (the Japanese 55-year Reanalysis) a more modest one, while CFSR (with finest native horizontal resolution) shows a high bias with respect to MERRA-2 in both upper tropospheric jets and multiple tropopauses. Vertical temperature structure and grid spacing are especially important for multiple tropopause characterizations. Substantial differences between MERRA and MERRA-2 are seen in mid-to high-latitude Southern Hemisphere (SH) winter upper tropospheric jets and multiple tropopauses as well as in the upper tropospheric jets associated with tropical circulations during the solstice seasons; some of the largest differences from the other reanalyses are seen in the same times and places. Very good qualitative agreement among the reanalyses is seen between the large-scale climatological features in UTLS jet and multiple tropopause distributions. Quantitative differences may, however, have important consequences for transport and variability studies. Our results highlight the importance of considering reanalyses differences in UTLS studies, especially in relation to resolution and model grids; this is particularly critical when using high-resolution reanalyses as an observational reference for evaluating global chemistry-climate models. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000411825100005 |
WOS关键词 | SOUTHERN-HEMISPHERE ; CLIMATE VARIABILITY ; COLUMN OZONE ; ERA-INTERIM ; PRECIPITATION ; ASSIMILATION ; CIRCULATION ; STREAM ; MERRA ; EXPANSION |
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/20601 |
专题 | 地球科学 |
作者单位 | 1.Northwest Res Associates, Socorro, NM 87801 USA; 2.New Mexico Inst Min & Technol, Dept Phys, Socorro, NM 87801 USA; 3.Univ Reading, Dept Meteorol, Reading, Berks, England; 4.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA; 5.Sci Syst & Applicat Inc, Lanham, MD USA; 6.CALTECH, Jet Prop Lab, Pasadena, CA USA |
推荐引用方式 GB/T 7714 | Manney, Gloria L.,Hegglin, Michaela I.,Lawrence, Zachary D.,et al. Reanalysis comparisons of upper tropospheric-lower stratospheric jets and multiple tropopauses[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(18). |
APA | Manney, Gloria L..,Hegglin, Michaela I..,Lawrence, Zachary D..,Wargan, Krzysztof.,Millan, Luis F..,...&Daffer, William H..(2017).Reanalysis comparisons of upper tropospheric-lower stratospheric jets and multiple tropopauses.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(18). |
MLA | Manney, Gloria L.,et al."Reanalysis comparisons of upper tropospheric-lower stratospheric jets and multiple tropopauses".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.18(2017). |
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