The impacts of secondary ice production on microphysics and dynamics in tropical convection

被引：19

作者：

Qu, Zhipeng ^{[1
]}

Korolev, Alexei ^{[1
]}

Milbrandt, Jason A. ^{[1
]}

Heckman, Ivan ^{[1
]}

Huang, Yongjie ^{[2
]}

McFarquhar, Greg M. ^{[3
,4
]}

Morrison, Hugh ^{[5
]}

Wolde, Mengistu ^{[6
]}

Cuong Nguyen ^{[6
]}

机构：

[1] Environm & Climate Change Canada, Meteorol Res Div, Toronto, ON, Canada

[2] Univ Oklahoma, Ctr Anal & Predict Storms, Norman, OK 73019 USA

[3] Univ Oklahoma, Cooperat Inst Severe & High Impact Weather Res &, Norman, OK 73019 USA

[4] Univ Oklahoma, Sch Meteorol, Norman, OK 73019 USA

[5] Natl Ctr Atmospher Res, Mesoscale & Microscale Meteorol Lab, POB 3000, Boulder, CO 80307 USA

[6] Natl Res Council Canada, Ottawa, ON, Canada

来源：

ATMOSPHERIC CHEMISTRY AND PHYSICS | 2022年 / 22卷 / 18期

基金：

美国国家科学基金会;

关键词：

MIXED-PHASE CLOUDS; SUPERCOOLED LIQUID WATER; LOW RADAR REFLECTIVITY; MULTISCALE GEM MODEL; PART I; SCHEME DESCRIPTION; DEEP CONVECTION; CONTENTS HIWCS; PARAMETERIZATION; PREDICTION;

D O I：

10.5194/acp-22-12287-2022

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Secondary ice production (SIP) is an important physical phenomenon that results in an increase in the ice particle concentration and can therefore have a significant impact on the evolution of clouds. In this study, idealized simulations of a mesoscale convective system (MCS) were conducted using a high-resolution (250 m horizontal grid spacing) mesoscale model and a detailed bulk microphysics scheme in order to examine the impacts of SIP on the microphysics and dynamics of a simulated tropical MCS. The simulations were compared to airborne in situ and remote sensing observations collected during the "High Altitude Ice Crystals - High Ice Water Content" (HAIC-HIWC) field campaign in 2015. It was found that the observed high ice number concentration can only be simulated by models that include SIP processes. The inclusion of SIP processes in the microphysics scheme is crucial for the production and maintenance of the high ice water content observed in tropical convection. It was shown that SIP can enhance the strength of the existing convective updrafts and result in the initiation of new updrafts above the melting layer. Agreement between the simulations and observations highlights the impacts of SIP on the maintenance of tropical MCSs in nature and the importance of including SIP parameterizations in models.

引用

页码：12287 / 12310

页数：24

共 99 条

[1] High ice water content at low radar reflectivity near deep convection - Part 2: Evaluation of microphysical pathways in updraft parcel simulations
Ackerman, A. S.
Fridlind, A. M.
Grandin, A.
Dezitter, F.
Weber, M.
Strapp, J. W.
Korolev, A. V.
[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS, 2015, 15 (20) : 11729 - 11751
[2] [Anonymous], 2020, ENV CLIM CHANG CAN G
[3] Baumgardner D, 2017, METEOR MON, V58, DOI 10.1175/AMSMONOGRAPHS-D-16-0011.1
[4] The cloud, aerosol and precipitation spectrometer: a new instrument for cloud investigations
Baumgardner, D
Jonsson, H
Dawson, W
O'Connor, D
Newton, R
[J]. ATMOSPHERIC RESEARCH, 2001, 59 : 251 - 264
[5] Bryan GH, 2003, MON WEATHER REV, V131, P2394, DOI 10.1175/1520-0493(2003)131<2394:RRFTSO>2.0.CO
[6] 2
[7] Production of ice in tropospheric clouds - A review
Cantrell, W
Heymsfield, A
[J]. BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY, 2005, 86 (06) : 795 - 807
[8] Parameterization of the Bulk Liquid Fraction on Mixed-Phase Particles in the Predicted Particle Properties (P3) Scheme: Description and Idealized Simulations
Cholette, Melissa
Morrison, Hugh
Milbrandt, Jason A.
Theriault, Julie M.
[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES, 2019, 76 (02) : 561 - 582
[9] Cote J, 1998, MON WEATHER REV, V126, P1373, DOI 10.1175/1520-0493(1998)126<1373:TOCMGE>2.0.CO
[10] 2

← 1 2 3 4 5 6 7 8 9 10 →