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DOI | 10.5194/acp-18-11709-2018 |
Cloud vertical structure over a tropical station obtained using long-term high-resolution radiosonde measurements | |
Reddy, Nelli Narendra; Ratnam, Madineni Venkat; Basha, Ghouse; Ravikiran, Varaha | |
2018-08-17 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:16页码:11709-11727 |
文章类型 | Article |
语种 | 英语 |
国家 | India |
英文摘要 | Cloud vertical structure, including top and base altitudes, thickness of cloud layers, and the vertical distribution of multilayer clouds, affects large-scale atmosphere circulation by altering gradients in the total diabatic heating and cooling and latent heat release. In this study, long-term (11 years) observations of high-vertical-resolution radiosondes are used to obtain the cloud vertical structure over a tropical station at Gadanki (13.5 degrees N, 79.2 degrees E), India. The detected cloud layers are verified with independent observations using cloud particle sensor (CPS) sonde launched from the same station. High-level clouds account for 69.05 %, 58.49 %, 55.5 %, and 58.6% of all clouds during the pre-monsoon, monsoon, post-monsoon, and winter seasons, respectively. The average cloud base (cloud top) altitudes for low-level, middle-level, high-level, and deep convective clouds are 1.74 km (3.16 km), 3.59 km (5.55 km), 8.79 km (10.49 km), and 1.22 km (11.45 km), respectively. Single-layer, two-layer, and three-layer clouds account for 40.80 %, 30.71 %, and 19.68% of all cloud configurations, respectively. Multilayer clouds occurred more frequently during the monsoon with 34.58 %. Maximum cloud top altitude and cloud thickness occurred during the monsoon season for single-layer clouds and the uppermost layer of multiple-layer cloud configurations. In multilayer cloud configurations, diurnal variations in the thickness of upper-layer clouds are larger than those of lower-layer clouds. Heating and cooling in the troposphere and lower stratosphere due to these cloud layers are also investigated and peak cooling (peak warming) is found below (above) the cold-point tropopause (CPT) altitude. The magnitude of cooling (warming) increases from single-layer to four- or more-layer cloud occurrence. Further, the vertical structure of clouds is also studied with respect to the arrival date of the Indian summer monsoon over Gadanki. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000441992900003 |
WOS关键词 | GENERAL-CIRCULATION MODEL ; MARINE STRATOCUMULUS ; CONVECTIVE CLOUDS ; STATISTICAL-MODEL ; DIURNAL-VARIATION ; MONSOON REGIONS ; INDIAN REGION ; TOP HEIGHT ; SURFACE ; VARIABILITY |
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/17318 |
专题 | 地球科学 |
作者单位 | Natl Atmospher Res Lab, Dept Space, Gadanki 517112, India |
推荐引用方式 GB/T 7714 | Reddy, Nelli Narendra,Ratnam, Madineni Venkat,Basha, Ghouse,et al. Cloud vertical structure over a tropical station obtained using long-term high-resolution radiosonde measurements[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(16):11709-11727. |
APA | Reddy, Nelli Narendra,Ratnam, Madineni Venkat,Basha, Ghouse,&Ravikiran, Varaha.(2018).Cloud vertical structure over a tropical station obtained using long-term high-resolution radiosonde measurements.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(16),11709-11727. |
MLA | Reddy, Nelli Narendra,et al."Cloud vertical structure over a tropical station obtained using long-term high-resolution radiosonde measurements".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.16(2018):11709-11727. |
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