A numerical study of tropical cross-tropopause transport by convective overshoots

被引:75
作者
Chaboureau, J. -P. [1 ]
Cammas, J. -P.
Duron, J.
Mascart, P. J.
Sitnikov, N. M.
Voessing, H. -J.
机构
[1] Univ Toulouse 3, Lab Aerol, F-31062 Toulouse, France
[2] CNRS, Toulouse, France
[3] Cent Aerol Observ, Dolgoprudnyi, Russia
[4] Johannes Gutenberg Univ Mainz, Inst Atmospher Phys, D-6500 Mainz, Germany
关键词
STRATOSPHERIC WATER-VAPOR; DIURNAL CYCLE; MODEL; DEEP; SIMULATIONS; RESOLUTION; SYSTEM; SCHEME; DEHYDRATION; TURBULENCE;
D O I
10.5194/acp-7-1731-2007
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Observations obtained during the Tropical Convection, Cirrus and Nitrogen Oxides (TROCCINOX) golden day have revealed the presence of ice particles up to 410 K (18.2 km) 2 km above the local tropopause. The case was investigated using a three-dimensional quadruply nested non-hydrostatic simulation and Meteosat Second Generation (MSG) observations. The simulation reproduced the measurements along the flight track fairly well. A reasonable agreement with MSG observations was also achieved: the 10.8-mu m brightness temperature (BT) minimum of 187 K was reproduced ( a value 6 K colder than the environmental cold-point temperature) as was the positive BT difference between the 6.2- and 10.8-mu m bands, an overshoot signature. The simulation produced several overshooting plumes up to 410 K yielding an upward transport of water vapour of a few tons per second across the tropical tropopause. The estimated mass flux agrees with those derived from over tracer budgets, indicating that convection transports mass across the tropopause.
引用
收藏
页码:1731 / 1740
页数:10
相关论文
共 50 条
[21]   Tracing the convective sources of air at tropical tropopause during the active and break phases of Indian summer monsoon [J].
Sivan, C. ;
Kottayil, Ajil ;
Legras, Bernard ;
Bucci, Silvia ;
Mohanakumar, K. ;
Satheesan, K. .
CLIMATE DYNAMICS, 2022, 59 (9-10) :2717-2734
[22]   Impact of the vertical velocity scheme on modeling transport in the tropical tropopause layer [J].
Ploeger, F. ;
Konopka, P. ;
Guenther, G. ;
Grooss, J. -U. ;
Mueller, R. .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2010, 115
[23]   Cirrus and water vapor transport in the tropical tropopause layer - Part 1: A specific case modeling study [J].
Dinh, T. ;
Durran, D. R. ;
Ackerman, T. .
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2012, 12 (20) :9799-9815
[24]   A trajectory-based study of the tropical tropopause region [J].
Bonazzola, M ;
Haynes, PH .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2004, 109 (D20) :D201121-23
[25]   Seasonal and interannual variability in the temperature structure around the tropical tropopause and its relationship with convective activities [J].
Nishimoto, Eriko ;
Shiotani, Masato .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2012, 117
[26]   Numerical study of tracers transport by a mesoscale convective system over West Africa [J].
Barthe, C. ;
Mari, C. ;
Chaboureau, J. -P. ;
Tulet, P. ;
Roux, F. ;
Pinty, J. -P. .
ANNALES GEOPHYSICAE, 2011, 29 (05) :731-747
[27]   Convective transport of water vapor into the lower stratosphere observed during double-tropopause events [J].
Homeyer, Cameron R. ;
Pan, Laura L. ;
Dorsi, Samuel W. ;
Avallone, Linnea M. ;
Weinheimer, Andrew J. ;
O'Brien, Anthony S. ;
DiGangi, Joshua P. ;
Zondlo, Mark A. ;
Ryerson, Thomas B. ;
Diskin, Glenn S. ;
Campos, Teresa L. .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2014, 119 (18) :10941-10958
[28]   Role of Radiative-Convective Feedbacks in Spontaneous Tropical Cyclogenesis in Idealized Numerical Simulations [J].
Wing, Allison A. ;
Camargo, Suzana J. ;
Sobel, Adam H. .
JOURNAL OF THE ATMOSPHERIC SCIENCES, 2016, 73 (07) :2633-2642
[29]   Pathways and timescales for troposphere-to-stratosphere transport via the tropical tropopause layer and their relevance for very short lived substances [J].
Levine, J. G. ;
Braesicke, P. ;
Harris, N. R. P. ;
Savage, N. H. ;
Pyle, J. A. .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2007, 112 (D4)
[30]   Sensitivity of stratospheric water vapour to variability in tropical tropopause temperatures and large-scale transport [J].
Smith, Jacob W. ;
Haynes, Peter H. ;
Maycock, Amanda C. ;
Butchart, Neal ;
Bushell, Andrew C. .
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2021, 21 (04) :2469-2489