The Stony Brook – Brookhaven Climate
Research Project
Minghua Zhang, Brian Colle, Wuyin Lin, Edmund Chang,
Xiangmin Jiao, Ying Chen
Stony Brook University
Andy Vogelmann, Mike Jensen, Guan Huang
Brookhaven National Laboratory
1. Quantum Chromodynamics and Supernova
2. Drug Development
3. Climate Modeling
The Themes:
• Coastal Storms: Prediction, Projection, and Impact
(Sea Level, Air Quality, Beach Erosion)
• Basic Science:
Moist Convection – Large Scale Interaction
(Convectively Coupled Atmospheric Waves)
Cloud-Climate Interaction
http://atmsci.msrc.sunysb.edu/npages/weather.html
Advanced Circulation Model for Coastal Ocean
Hydrodynamics (ADCIRC) Forced by PSU-NCAR MM5
or WRF Atmospheric model at 12-km grid spacing
ADCIRC Water-level and Flooding
meters
12-km MM5 Forecast
1200 UTC 11 December 1992
1992 Nor’easter Flooding
Source: Metro New York Hurricane Transportation Study, 1995
FDR Drive during the
December 1992 nor’easter
(Bloomfield, 1999)
Ref: Bloomfield, J., M. Smith and N. Thompson, 1999. Hot Nights in the
City. Environmental Defense Fund, New York.
ISCCP
CERES
CAM2
CAM2c
CAM2x
ECHAM5
GFDL
GISS
GSFC
HadAM3
HadAM4
LMD
High Top Clouds (%)
60
(a)
50
40
High
30
20
10
0
-60
-40
-20
0
20
40
60
35
(b)
30
25
Middle
20
15
10
5
0
-60
-40
-20
0
20
40
60
70
(c)
60
Low Top Clouds (%)
Clouds in GCMs
Middle Top Clouds (%)
40
50
Low
40
30
20
10
0
-60
-40
-20
0
20
Latitude (Degrees North)
Figure 3
40
60
February 19, 2004
CAM3 Forecasting Mode
WRF
(a)
(c)
(b)
(d)
The Plan
Nest regional models in CAM:
• To target regions of interest
• To substitute GCM parameterizations when
necessary
Two-Way Interaction
A system that scales well on the BlueGene
Key Challenges
1. Data mapping between different grids type and different
map projections
2. Accuracy and stability of coupling schemes spatially and
temporally
3. Compiling different models into coherent executable
(makefiles, name conflicts, etc.)
4. Efficiency and scalability of data communication on
parallel computers
Current Status
Use the CCSM Sequential mct coupling structure
Driver
Call CAM
Map CAM to WRF
Loop WRF
Map WRF to CAM (?)
Current Status
• Studying example coupling of WRF and
ROMS
– models used: MCT, MPH (Multi ProgramComponents Handshaking), genericvortex
We very much need partners and help for this effort
Why We Are Here!