Presenter: Guang Zhang
Title: Coupling Stochastic Convection Parameterization with ZM in E3SM
Abstract:Like many Global Climate Models and Earth System Models, E3SM has a problem of “too much drizzle and too little heavy rain”. A likely cause of this is that convection occurs too often. We recently introduced a stochastic deep convection parameterization into E3SMv1 and coupled it with the Zhang-McFarlane (ZM) deep convection scheme. The simulated PDF of rainfall intensity is greatly improved, with the “too much drizzle and too little heavy rain” problem alleviated. The reduction of light rain frequency is entirely from convection whereas the increase in heavy rain comes from both convection and grid-scale precipitation. Both the intraseasonal and synoptic-scale variances are also increased. The climatological means of variables of interest remain about the same as the default E3SMv1, which means no extensive model tuning is needed if/when adopted into E3SMv2.
Date
Time
- PT: 8:30 am
- ET: 11:30 am
Call Info
- web session: https://global.gotomeeting.com/join/570361173 (user: acme-gotowebinar1@lists.llnl.gov, password: goto4acme )
- call number: (571) 317-3122 Access Code: 570-361-173, If busy, use alternate number: (773) 945-1029
Joining from a video-conferencing room or system? Dial: 67.217.95.2##570361173 , Cisco devices: 570361173@67.217.95.2
Attendees
- Wuyin Lin
- Guang Zhang
- Shaocheng Xie
- Matt Hoffman
- Ruby Leung
- Holly Davis (Unlicensed)
- Renata McCoy
- Hyein Jeong (Unlicensed)
- Jon Wolfe
- Stephen Price
- David C. Bader
- Phillip Wolfram (Unlicensed)
- Michael Brunke
- Michael J Prather
- Darin Comeau
- Yan Feng
- Chris Golaz
- Andrew Roberts
- LeAnn Conlon
- Jayesh Krishna
- Mark Taylor
- Matt Turner (Unlicensed)
- Steve Klein
- Katherine Smith
- Chris Terai
- Xujing Jia Davis
- Peter Caldwell
- He Wang (Unlicensed)
- Peter Bogenschutz
- Sally McFarlane
- Nicole Jeffery
- Robert Jacob
- Salil Mahajan
- Xubin Zeng
- Ryan Forsyth
- Sam Silva (Unlicensed)
- Shaocheng Xie
- fnu Quazi Ziaur Rasool (Unlicensed)
- Darin Comeau
- Azamat Mametjanov
- Doo Young Lee (Unlicensed)
- Jill Chengzhu Zhang
- Tian Zhou
- Mark Petersen
- Oksana Guba
- Phillip Wolfram (Unlicensed)
- Bryce Harrop
Discussion items
Time | Item | Who | Presentation | Recording | Notes |
|---|---|---|---|---|---|
30 min | Coupling Stochastic Convection Parameterization with ZM in E3SM | Guang Zhang |