TY - JOUR
T1 - Numerical simulation study on the scientific and methodological aspects of the Brazilian Proposal
AU - Hu, Guoquan
AU - Dai, Xiaosu
AU - Bodeker, Greg
AU - Reisinger, Andy
PY - 2005
Y1 - 2005
N2 - In this paper, by using a simple climate model (SCM), a numerical simulation study has been conducted on the scientific and methodological aspects of Brazilian Proposal. First the initial check of simple climate model has been done, then we do some sensitivity studies on timeframes (attribution start and end dates, and evaluation date), and three attribution methods (marginal attribution method, proportional attribution method, and time-sliced attribution method), at last we get the main conclusions as follows: The simple climate model can represent the results of more complex climate model (e.g., HadCM3), and it is thus used to study the scientific and methodological aspects of the Brazilian Proposal. Because of the limited knowledge of science and data, although attributing a part of temperature increase to different GHG (greenhouse gas) emission source, there is considerable temperature increase unattributed to regional emissions. Therefore it is uncertain to make Brazilian Proposal as the method for the responsibility share of future GHG decrease emission. The choices of different timeframes (attribution start and end dates, and evaluation date) and future emission SRES (Special Report on Emission Scenarios) make great influence on the regional contributions to global climate changes, but different attribution methods have only a little influence.
AB - In this paper, by using a simple climate model (SCM), a numerical simulation study has been conducted on the scientific and methodological aspects of Brazilian Proposal. First the initial check of simple climate model has been done, then we do some sensitivity studies on timeframes (attribution start and end dates, and evaluation date), and three attribution methods (marginal attribution method, proportional attribution method, and time-sliced attribution method), at last we get the main conclusions as follows: The simple climate model can represent the results of more complex climate model (e.g., HadCM3), and it is thus used to study the scientific and methodological aspects of the Brazilian Proposal. Because of the limited knowledge of science and data, although attributing a part of temperature increase to different GHG (greenhouse gas) emission source, there is considerable temperature increase unattributed to regional emissions. Therefore it is uncertain to make Brazilian Proposal as the method for the responsibility share of future GHG decrease emission. The choices of different timeframes (attribution start and end dates, and evaluation date) and future emission SRES (Special Report on Emission Scenarios) make great influence on the regional contributions to global climate changes, but different attribution methods have only a little influence.
KW - Brazilian Proposal
KW - Scientific and methodological aspects
KW - Simple climate model (SCM)
UR - http://www.scopus.com/inward/record.url?scp=33644750654&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:33644750654
SN - 0894-0525
VL - 19
SP - 447
EP - 456
JO - Acta Meteorologica Sinica
JF - Acta Meteorologica Sinica
IS - 4
ER -