Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2016.08.015 |
Diversity on subtropical and polar cirrus clouds properties as derived from both ground-based lidars and CALIPSO/CALIOP measurements | |
Cordoba-Jabonero, Carmen1; Lopes, Fabio J. S.2,3; Landulfo, Eduardo3; Cuevas, Emilio4; Ochoa, Hector5; Gil-Ojeda, Manuel1 | |
2017 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2017 |
卷号 | 183 |
文章类型 | Article |
语种 | 英语 |
国家 | Spain; Brazil; Argentina |
英文摘要 | Cirrus (Ci) cloud properties can change significantly from place to place over the globe as a result of weather processes, reflecting their likely different radiative and climate implications. In this work Cirrus clouds (Ci) features observed in late autumn/early winter season at both subtropical and polar latitudes are examined and compared to CALIPSO/CALIOP observations. Lidar measurements were carried out in three stations: Sao Paulo (MSP, Brazil) and Tenerife (SCO, Canary Islands, Spain), as subtropical sites, and the polar Belgrano II base (BEL., Argentina) in the Antarctic continent. The backscattering ratio (BSR) profiles and the top and base heights of the Ci layers together to their Cirrus Cloud Optical Depth (CCOD) and Lidar Ratio (LR) for Ci clouds were derived. In addition, temperatures at the top and base boundaries of the Ci clouds were also obtained from local radiosoundings to verify pure ice Ci clouds occurrence using a given temperature top threshold (<-38 degrees C). Ci clouds observed along the day were assembled in groups based on their predominant CCOD, and classified according to four CCOD-based categories. Ci clouds were found to be vertically-distributed in relation with the temperature, forming subvisual Ci clouds at lower temperatures and higher altitudes than other Ci categories at both latitudes. Discrepancies shown on LR values for the three stations, but mainly remarked between subtropical and polar cases, can be associated to different temperature regimes for Ci formation, influencing the internal ice habits of the Ci clouds, and hence likely affecting the LR derived for the Ci layer. In comparison with literature values, daily mean CCOD/LR for SCO (0.4 +/- 0.4/21 +/- 10 sr), MSP (0.5 +/- 0.5/27 +/- 5 sr) and BEL (0.2 +/- 03/28 +/- 9 sr) are in good agreement; however, the variability of the Ci optical features along the day present large discrepancies. In comparison with CALIOP data, Ci clouds are observed at similar altitudes (around 10-13 km height); however, differences are found mostly in CCOD values for subtropical Ci clouds, whereas LR values are in a closer agreement. These differences are carefully examined in relation with the closest CALIPSO overpass time and distance from the station (>70 km far), inferring the irregular extension and inhomogeneity of the Ci clouds over each study area. These considerations can be useful for assimilation of the Ci features into climate models and evaluation of future space-borne lidar observations of Ci clouds, especially for the future ESA/Copernicus-Sentinel and ESA/EarthCARE missions. (C) 2016 Elsevier B.V. All rights reserved. |
英文关键词 | CALIPSO/CALIOP Cirrus Cloud Optical Depth (CCOD) Cirrus clouds Lidar Polar regions Subtropical latitudes |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000386861800013 |
WOS关键词 | MICRO-PULSE LIDAR ; RADIATIVE PROPERTIES ; OPTICAL-PROPERTIES ; DEPOLARIZATION RATIO ; PART I ; AEROSOL ; MIDLATITUDE ; SCATTERING ; RETRIEVAL ; RAMAN |
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/38112 |
专题 | 地球科学 |
作者单位 | 1.INTA, Atmospher Res & Instrumentat Branch, Ctra Ajalvir Km 4, Madrid 28850, Spain; 2.Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer IAG, Sao Paulo, Brazil; 3.IPEN, Ctr Lasers & Applicat, Sao Paulo, Brazil; 4.Agenda Estatal Meteorol AEMET, Atmospher Res Ctr Izana, San Cristobal la Laguna, Spain; 5.IAA, DNA, Buenos Aires, DF, Argentina |
推荐引用方式 GB/T 7714 | Cordoba-Jabonero, Carmen,Lopes, Fabio J. S.,Landulfo, Eduardo,et al. Diversity on subtropical and polar cirrus clouds properties as derived from both ground-based lidars and CALIPSO/CALIOP measurements[J]. ATMOSPHERIC RESEARCH,2017,183. |
APA | Cordoba-Jabonero, Carmen,Lopes, Fabio J. S.,Landulfo, Eduardo,Cuevas, Emilio,Ochoa, Hector,&Gil-Ojeda, Manuel.(2017).Diversity on subtropical and polar cirrus clouds properties as derived from both ground-based lidars and CALIPSO/CALIOP measurements.ATMOSPHERIC RESEARCH,183. |
MLA | Cordoba-Jabonero, Carmen,et al."Diversity on subtropical and polar cirrus clouds properties as derived from both ground-based lidars and CALIPSO/CALIOP measurements".ATMOSPHERIC RESEARCH 183(2017). |
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