Microphysical processes producing high ice water contents (HIWCs) in tropical convective clouds during the HAIC-HIWC field campaign: evaluation of simulations using bulk microphysical schemes

Huang, Yongjie; Wu, Wei; McFarquhar, Greg M.; Wang, Xuguang; Morrison, Hugh; Ryzhkov, Alexander; Hu, Yachao; Wolde, Mengistu; Nguyen, Cuong; Schwarzenboeck, Alfons; Milbrandt, Jason; Korolev, Alexei V.; Heckman, Ivan

doi:10.5194/acp-21-6919-2021

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Microphysical processes producing high ice water contents (HIWCs) in tropical convective clouds during the HAIC-HIWC field campaign: evaluation of simulations using bulk microphysical schemes

2020
By Huang, Yongjie ; Wu, Wei ; McFarquhar, Greg M. ; ...
Source: Atmos. Chem. Phys., 21, 6919–6944, 2021

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Journal Title:

Atmospheric Chemistry and Physics
Personal Author:

Huang, Yongjie ; Wu, Wei ; McFarquhar, Greg M. ; Wang, Xuguang ; Morrison, Hugh ; ... More +

Huang, Yongjie ; Wu, Wei ; McFarquhar, Greg M. ; Wang, Xuguang ; Morrison, Hugh ; Ryzhkov, Alexander ; Hu, Yachao ; Wolde, Mengistu ; Nguyen, Cuong ; Schwarzenboeck, Alfons ; Milbrandt, Jason ; Korolev, Alexei V. ; Heckman, Ivan Less -
NOAA Program & Office:

CIMMS (Cooperative Institute for Mesoscale Meteorological Studies) ; OAR (Oceanic and Atmospheric Research) ; NSSL (National Severe Storms Laboratory)

CIMMS (Cooperative Institute for Mesoscale Meteorological Studies) ; OAR (Oceanic and Atmospheric Research) ; NSSL (National Severe Storms Laboratory) Less -
Description:

Regions with high ice water content (HIWC), composed of mainly small ice crystals, frequently occur over convective clouds in the tropics. Such regions can have median mass diameters (MMDs) <300 µm and equivalent radar reflectivities <20 dBZ. To explore formation mechanisms for these HIWCs, high-resolution simulations of tropical convective clouds observed on 26 May 2015 during the High Altitude Ice Crystals – High Ice Water Content (HAIC-HIWC) international field campaign based out of Cayenne, French Guiana, are conducted using the Weather Research and Forecasting (WRF) model with four different bulk microphysics schemes: the WRF single‐moment 6‐class microphysics scheme (WSM6), the Morrison scheme, and the Predicted Particle Properties (P3) scheme with one- and two-ice options. The simulations are evaluated against data from airborne radar and multiple cloud microphysics probes installed on the French Falcon 20 and Canadian National Research Council (NRC) Convair 580 sampling clouds at different heights. WRF simulations with different microphysics schemes generally reproduce the vertical profiles of temperature, dew-point temperature, and winds during this event compared with radiosonde data, and the coverage and evolution of this tropical convective system compared to satellite retrievals. All of the simulations overestimate the intensity and spatial extent of radar reflectivity by over 30 % above the melting layer compared to the airborne X-band radar reflectivity data. They also miss the peak of the observed ice number distribution function for 0.1More ▼ -->
Keywords:

[+]

Convective Clouds Ice Water Content Simulations Tropics
Source:

Atmos. Chem. Phys., 21, 6919–6944, 2021
DOI:

https://doi.org/10.5194/acp-21-6919-2021
Document Type:

Journal Article
Funding:

Grant no. NA16OAR4320115
Rights Information:

CC BY
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:6c07798149756fe131406f5fdee94cb4153bb8abf8ed8b1dec65fcc722ebea3f
Download URL:

https://repository.library.noaa.gov/view/noaa/31628/noaa_31628_DS1.pdf
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