Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-5221-2017 |
Genesis of diamond dust, ice fog and thick cloud episodes observed and modelled above Dome C, Antarctica | |
Ricaud, Philippe1; Bazile, Eric1; del Guasta, Massimo2; Lanconelli, Christian3,5; Grigioni, Paolo4; Mahjoub, Achraf1 | |
2017-04-21 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Italy |
英文摘要 | Episodes of thick cloud and diamond dust/ice fog were observed during 15 March to 8 April 2011 and 4 to 5 March 2013 in the atmosphere above Dome C (Concordia station, Antarctica; 75 degrees 06'S, 123 degrees 21'E; 3233 ma.m.s.l.). The objectives of the paper are mainly to investigate the processes that cause these episodes based on observations and to verify whether operational models can evaluate them. The measurements were obtained from the following instruments: (1) a ground-based microwave radiometer (HAMSTRAD, H2O Antarctica Microwave Stratospheric and Tropospheric Radiometers) installed at Dome C that provided vertical profiles of tropospheric temperature and absolute humidity every 7 min; (2) daily radiosoundings launched at 12:00 UTC at Dome C; (3) a tropospheric aerosol lidar that provides aerosol depolarization ratio along the vertical at Dome C; (4) down-and upward short-and long-wave radiations as provided by the Baseline Surface Radiation Network (BSRN) facilities; (5) an ICE-CAMERA to detect at an hourly rate the size of the ice crystal grains deposited at the surface of the camera; and (6) space-borne aerosol depolarization ratio from the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) lidar aboard the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) platform along orbits close to the Dome C station. The time evolution of the atmosphere has also been evaluated by considering the outputs from the mesoscale AROME and the global-scale ARPEGE meteorological models. Thick clouds are detected during the warm and wet periods (24-26 March 2011 and 4 March 2013) with high depolarization ratios (greater than 30 %) from the surface to 5-7 km above the ground associated with precipitation of ice particles and the presence of a supercooled liquid water (depolarization less than 10 %) clouds. Diamond dust and/or ice fog are detected during the cold and dry periods (5 April 2011 and 5 March 2013) with high depolarization ratios (greater than 30 %) in the planetary boundary layer to a maximum altitude of 100-300m above the ground with little trace of precipitation. Considering 5-day back trajectories, we show that the thick cloud episodes are attributed to air masses with an oceanic origin whilst the diamond dust/ice fog episodes are attributed to air masses with continental origins. Although operational models can reproduce thick cloud episodes in the free troposphere, they cannot evaluate the diamond dust/ice fog episodes in the planetary boundary layer because they require to use more sophisticated cloud and aerosol microphysics schemes. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000399913300003 |
WOS关键词 | TROPOSPHERIC WATER-VAPOR ; RADIATIVE PROPERTIES ; HAMSTRAD RADIOMETER ; CONCORDIA STATION ; ABSOLUTE-HUMIDITY ; CLIMATE ; TEMPERATURE ; PARAMETERIZATION ; VALIDATION ; CRYSTALS |
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/16218 |
专题 | 地球科学 |
作者单位 | 1.CNRS UMR 3589, CNRM, Meteo France, 42 Ave Gaspard Coriolis, F-31057 Toulouse, France; 2.INO CNR, Via Madonna del Piano 10, I-50019 Sesto Fiorentino, Italy; 3.CNR, Inst Atmospher Sci & Climate ISAC, Via Gobetti 101, I-40129 Bologna, Italy; 4.ENEA, Lungotevere Thaon di Revel 76, I-00196 Rome, Italy; 5.Joint Res Ctr, Inst Environm & Sustainabil, Land Resource Management Unit H05, Via Fermi, I-21027 Ispra, VA, Italy |
推荐引用方式 GB/T 7714 | Ricaud, Philippe,Bazile, Eric,del Guasta, Massimo,et al. Genesis of diamond dust, ice fog and thick cloud episodes observed and modelled above Dome C, Antarctica[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(8). |
APA | Ricaud, Philippe,Bazile, Eric,del Guasta, Massimo,Lanconelli, Christian,Grigioni, Paolo,&Mahjoub, Achraf.(2017).Genesis of diamond dust, ice fog and thick cloud episodes observed and modelled above Dome C, Antarctica.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(8). |
MLA | Ricaud, Philippe,et al."Genesis of diamond dust, ice fog and thick cloud episodes observed and modelled above Dome C, Antarctica".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.8(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论