Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-016-3353-7 |
Impact of tropical convection and ENSO variability in vertical distributions of CO and O-3 over an urban site of India | |
Sahu, L. K.1; Sheel, Varun1; Kajino, M.2; Deushi, M.2; Gunthe, Sachin S.3; Sinha, P. R.4,5; Yadav, Ravi1; Pal, Devendra1; Nedelec, P.6; Thouret, Valerie6; Smit, Herman G.7 | |
2017-07-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2017 |
卷号 | 49 |
文章类型 | Article |
语种 | 英语 |
国家 | India; Japan; France; Germany |
英文摘要 | This study is based on the analysis of the measurement of ozone and water vapor by airbus in-service aircraft (MOZAIC) data of vertical ozone (O-3) and carbon monoxide (CO) over Hyderabad during November 2005-March 2009. Measurements in the upper troposphere show highest values of O-3 (53-75 ppbv) and CO (80-110 ppbv) during the pre-monsoon and post-monsoon seasons, respectively. The episodes of strong wind shears (> 20 ms(-1)) were frequent during the monsoon/post-monsoon months, while weak shear conditions (< 10 ms(-1)) were prevalent during the winter season. The profiles of both O-3 and CO measured under southerly winds showed lower values than under northerly winds in each season. The strong and weak wind shears over the study region were associated with the El Nio and La Nia conditions, respectively. The outgoing long-wave radiation (OLR) and wind shear data indicate enhancement in the convective activity from monsoon to post-monsoon period. Higher levels of O-3 were measured under the strong shear conditions, while CO and H2O show enhancements under weak shear conditions. The near surface observation and simulations show increase of O-3 with increasing OLR, while insignificant relation in the upper region. In case of CO, the MOZAIC and CCM2 show weaker dependence while MOZART-4 shows rapid increase with OLR indicating large overestimation of convective transport. A modified Tiedtke convective scheme provides better representation compared to the Hack/Zhang-McFarlane schemes for both O-3 and CO during the monsoon season. The difference between observation and simulations were particularly large during transition from El Nio to La Nia phases. The different convection scheme and horizontal resolution in the MOZART-4 and CCM2 seem to be the major causes of disagreement between these models. Vertical profiles of both O-3 and CO during extreme events such a tropical cyclones (TCs) show strong influence of the convective-dynamics over Bay of Bengal (BOB). |
英文关键词 | India ENSO Carbon monoxide Ozone Convection MOZART-4 CCM2 |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000403716500027 |
WOS关键词 | ASIAN MONSOON TRANSPORT ; TROPOSPHERIC OZONE ; DEEP CONVECTION ; SUMMER MONSOON ; WATER-VAPOR ; EL-NINO ; INTERANNUAL VARIABILITY ; TROPOPAUSE LAYER ; WESTERN INDIA ; CLIMATE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | 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/35256 |
专题 | 气候变化 |
作者单位 | 1.Phys Res Lab, Ahmadabad 380009, Gujarat, India; 2.Japan Meteorol Agcy, Meteorol Res Inst, Tsukuba, Ibaraki, Japan; 3.Indian Inst Technol, Environm & Water Resources Engn Div, Dept Civil Engn, Madras 600036, Tamil Nadu, India; 4.Tata Inst Fundamental Res, Natl Balloon Facil, ECIL Post 5, Hyderabad 500062, Andhra Prades, India; 5.Univ Tokyo, Dept Earth & Planetary Sci, Tokyo 1130033, Japan; 6.Observ Midi Pyrenees, CNRS, Lab Aerol, UMR 5560, 14 Ave Edouard Belin, F-31400 Toulouse, France; 7.Forschungszentrum Julich, Inst Chem & Dynam Geosphare Troposphare ICG 2, Julich, Germany |
推荐引用方式 GB/T 7714 | Sahu, L. K.,Sheel, Varun,Kajino, M.,et al. Impact of tropical convection and ENSO variability in vertical distributions of CO and O-3 over an urban site of India[J]. CLIMATE DYNAMICS,2017,49. |
APA | Sahu, L. K..,Sheel, Varun.,Kajino, M..,Deushi, M..,Gunthe, Sachin S..,...&Smit, Herman G..(2017).Impact of tropical convection and ENSO variability in vertical distributions of CO and O-3 over an urban site of India.CLIMATE DYNAMICS,49. |
MLA | Sahu, L. K.,et al."Impact of tropical convection and ENSO variability in vertical distributions of CO and O-3 over an urban site of India".CLIMATE DYNAMICS 49(2017). |
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