Assessing the Effects of Microphysical Scheme on Convective and Stratiform Characteristics in a Mei-Yu Rainfall Combining WRF Simulation and Field Campaign Observations

Joint Authors

Liu, Lin
Lin, Chunze
Bai, Yongqing
He, Dengxin

Source

Advances in Meteorology

Issue

Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-17, 17 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2020-03-09

Country of Publication

Egypt

No. of Pages

17

Main Subjects

Physics

Abstract EN

Microphysics parameterization becomes increasingly important as the model grid spacing increases toward convection-resolving scales.

Using observations from a field campaign for Mei-Yu rainfall in China, four bulk cloud microphysics schemes in the Weather Research and Forecasting (WRF) model were evaluated with respect to their ability to simulate precipitation, structure, and cloud microphysical properties over convective and stratiform regimes.

These are the Thompson (THOM), Morrison graupel/hail (MOR_G/H), Stony Brook University (SBU_YLIN), and WRF double-moment six-class microphysics graupel/hail (WDM6_G/H).

All schemes were able to predict the rain band but underestimated the total precipitation by 23%–35%.

This is mainly attributed to the underestimation of stratiform precipitation and overestimation of convective rain.

For the vertical distribution of radar reflectivity, many problems remain, such as lower reflectivity values aloft in both convective and stratiform regions and higher reflectivity values at middle level.

Each bulk scheme has its advantages and shortcomings for different cloud regimes.

Overall, the discrepancies between model output and observations mostly exist in the midlevel to upper level, which results from the inability of the model to accurately represent the particle size distribution, ice processes, and storm dynamics.

Further observations from major field campaigns and more detailed evaluation are still necessary.

American Psychological Association (APA)

Liu, Lin& Lin, Chunze& Bai, Yongqing& He, Dengxin. 2020. Assessing the Effects of Microphysical Scheme on Convective and Stratiform Characteristics in a Mei-Yu Rainfall Combining WRF Simulation and Field Campaign Observations. Advances in Meteorology،Vol. 2020, no. 2020, pp.1-17.
https://search.emarefa.net/detail/BIM-1126987

Modern Language Association (MLA)

Liu, Lin…[et al.]. Assessing the Effects of Microphysical Scheme on Convective and Stratiform Characteristics in a Mei-Yu Rainfall Combining WRF Simulation and Field Campaign Observations. Advances in Meteorology No. 2020 (2020), pp.1-17.
https://search.emarefa.net/detail/BIM-1126987

American Medical Association (AMA)

Liu, Lin& Lin, Chunze& Bai, Yongqing& He, Dengxin. Assessing the Effects of Microphysical Scheme on Convective and Stratiform Characteristics in a Mei-Yu Rainfall Combining WRF Simulation and Field Campaign Observations. Advances in Meteorology. 2020. Vol. 2020, no. 2020, pp.1-17.
https://search.emarefa.net/detail/BIM-1126987

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1126987