1. Model developments in the past year in China
Bin Wang
Contributors: IAP, THU, BCC, BNU, FIO, NUIST, CAMS
WGCM 19, Oct, 2015, Dubrovnik, Croatia

2. Model Groups Group name Affiliation Model name LASG/IAP
Institute of Atmospheric Physics (IAP),
Chinese Academy of Sciences (CAS)
FGOALS
IAP/CAS
CAS ESM
CESS/THU
Center for Earth System Science (CESS), Tsinghua University (THU)
CICSM
BNU
Beijing Normal University (BNU)
BNU-ESM
NUIST
Nanjing University of Information Science and Technology (NUIST)
NUIST-CSM
BCC
Beijing Climate Center (BCC) / China Meteorological Administration (CMA)
BCC-ESM/CSM
CAMS
Chinese Academy of Meteorological Science (CAMS) / CMA
CAMS-CSM
FIO
First Institute of Oceanography (FIO) / State Oceanic Administration (SOA)
FIO-ESM
FGOALS: Flexible Global Ocean-Atmosphere-Land System
CICSM / CIESM: Community Integrated CSM / ESM

3. Model Names Affiliation ESM/CSM AGCM LSM OGCM SIM CAS FGOALS CAS ESM
FAMIL 2.1
GAMIL 2.1
CLM4.5
LICOM HAMOCC
CICE4.0
CAS ESM
IAP4.2
CoLM +
DGVM
LICOM2 + OBGCM
CICE
Universities
CICSM
FDAM 1.0
POP2
BNU-ESM
CAM5
CoLM + improved biogeochem schem
MOM4p1 + new ecosystem schem
Improved CICE4.1
NUIST-CSM
ECHAM –NUIST
Modified ECHAM5.3 Land Model
NEMO 3.4
CICE 4.1
CMA
BCC-ESM / BCC-CSM
BCC-AGCM3-Ch
BCC-AGCM3-MR
BCC-AGCM3-HR
BCC-AVIM2
MOM4-HAMOCC
CICE5
CAMS-CSM
ECHAM5.0
CoLM
LICOM2
SOA
FIO-ESM
CAM4 / CAM5
NEMO3.6 + MASNUM Wave model

4. Model Resolutions Affiliation ESM/CSM AGCM / LSM OGCM/SIM CAS FGOALS
100, 50, 25km; L32, L64 for FAMIL
1⁰x1⁰ L26 for GAMIL
10, 100km; L30
CAS ESM
1⁰x1⁰ L26
1⁰ x 1⁰ (0.5⁰ near EQ) L30
Universities
CICSM
BNU-ESM
144x96, 288x192; L30
360x200 L50
NUIST-CSM
T159/T42 L31
1⁰ x 1⁰ (0.25⁰ near EQ) L31
Sea ice: 1⁰ x 0.5⁰
CMA
BCC-ESM / BCC-CSM
T42 L26 for ESM-LR
T106 L46 for CSM-MR
T266 L26 for CSM-HR
1/3 ⁰ in 50S-50N
1/3-1⁰ in 50N-60N
1⁰ in high latitudes
CAMS-CSM
T106 L31
SOA
FIO-ESM
200, 100, 50 km; L26
100, 50, 25 km; L75
WAV: 200, 100, 50 km

5. 18 MIPs are considered by the model groups in China
Short name of MIP
CAS
Universities
CMA
SOA
Total
FGOALS
CAS ESM
THU
BNU
NUIST
BCC
CAMS
FIO 1
AerChemMIP 2
C4MIP 3
CFMIP 5 4
DAMIP
DCPP 6
FAFMIP 7
GeoMIP 8
GMMIP 9
HighResMIP 10
LS3MIP 11
LUMIP 12
OMIP 13
PMIP 14
RFMIP 15
ScenarioMIP 16
SIMIP 17
VolMIP 18
CORDEX
do not plan to contribute simulations
plan to contribute simulations
Not sure yet

6. Main Progress in China
Resolutions are increased generally in the horizontal and partly in the vertical, comparing with the CMIP5 models in China;
Some schemes related to key processes of moist physics, surface or boundary layer are improved or updated, and thus biases in precipitation, temperature, shortwave cloud radiative forcing, and so on are reduced;

7. Main Progress in China
Terrestrial and marine ecosystem components are developed or improved, and are applied to establishment of ESMs in China
The self-designed coupler, C-Coupler, is further improved with enhanced functions, which are applied to building of CSM/ESMs or their components in China.

8. Improved simulations in clouds by GAMIL
(Due to the improvements in the cloud overlap scheme and the boundary layer scheme)
Total cloud fraction
Shortwave cloud raditive forcing biases
OBS
Control simulation
Simulation
Improved simulation
(LASG/IAP)

9. (CESS/THU) Xie-Arkin Observations
60 years of coupled model simulation after using improved convection scheme
Xie-Arkin Observations

10. Impact of vapor transport scheme (Two-Step Shape-Preserving Advection Scheme, TSPAS) on precipitation
CTRL (FFSL scheme)
(CAMS)
TSPAS
CTRL-TRMM
TSPAS-CTRL
Annual mean precipitation by different vapor transport scheme in ECHAM5(T106L31) model. (a) FFSL; (b) TSPAS; (c) difference between FFSL and TRMM; (d) difference between TSPAS and FFSL scheme. Overestimation of precipitation near the Tibetan Plateau was improved by TSPAS scheme.

11. Impact of land model on surface temperature simulation
(CAMS)
(a)
(b)
Bias of annual mean surface temperature by different land component in ECHAM5 model (T42L31) . (a) ECHAM land process; (b) CoLM land model. Cold bias over the northern Eurasian continent was improved by the CoLM land model.

12. CAS ESM Simulation Example
Observation
Evergreen Tree
Evergreen Tree
Evaluation of the model suggests that the model shows a strong ability in reproducing global vegetation.
目前的一些模式评估结果
Deciduous Tree
Deciduous Tree
IAP Dynamic Global Vegetation Model (DGVM) will be used for carbon cycle experiments

13. Significant improvements of C-Coupler1 (THU)
Dynamic 3-D coupling: for modularized 3-D coupling between an atmosphere model and a chemistry model
Enhancement for worldwide bitwise identical reproducibility on the C-Coupler platform
A new adaptive data transfer library: significantly improves the parallel performance of data transfer in model coupling
CosFiD: a new tool based on bitwise identical reproducibility, for detecting model code bugs and compiler code bugs
ATM
ICE
LND
OCN
Coupler
C-Coupler1

14. Thank you
for your attention.