340 likes | 354 Views
This report presents the APEC Climate Center's climate outlook for the Asia-Pacific region for the months of April, May, and June 2010. It includes information on trade and investment, economic cooperation, seasonal forecast procedures, participating institutions, forecast verification, and dissemination.
E N D
APEC Climate Center (APCC) Climate Outlook for AMJ 2010 Presented by : R. H. Kripalani Investigators : Soo-Jin Sohn, Young-Mi Min
Asia Pacific Economic Cooperation (APEC) To meet the Bogor Goals of free and open trade and investment in the Asia-Pacific region • Trade and Investment Liberalization • Business Facilitation • Economic and Technical Cooperation
Procedure of Seasonal Forecast APEC Member Economics Participating Institutions APEC Climate Center (APCC) MME Seasonal Production Data Collection Quality Check Decision on the official APCC forecasts Deterministic Forecasts (4 DMMEs) Probabilistic Forecast (PMME) • 17 models • Hindcast • Forecast • Historical • Observation Communication with model holders Outlook Verification (Previous forecast, Hindcast) Graphics (Individual models, DMMEs, PMME, verification) Dissemination Decision on the model set Pre- processing Application (Index forecast, statistical downscaling) 20th 10th 15th
Methodology: Deterministic MME Schemes Simple Composite Method : SCM Simple composite of individual forecast with equal weighting. Step-wise Pattern Projection Method : Simple composite of individual forecasts, after correction by statistical downscaling using SPPM. SPM Multiple Regression Method: Optimally weighted composite of individual forecasts. The weighting coefficient is obtained by SVD based regression. MRG Synthetic Multi-Model Super Ensemble Method: SSE Weighted combination of statistically corrected multi model output.
Updated Participating Models in MME * GCPS: Global Climate Prediction System
Hindcast Verification: Deterministic MME (60E-130E, 10S-30N)
The APEC Climate Center Experimental climate Outlook for Mar-Aug 2010 based on 6-month 1-tier MME Forecasts Investigators : Doo Young Lee and Hye-In Jeong
Experimental 6-month 1-tier MME Forecast • Launched semi-operationally since late 2008.
Model description CGCM (Tier-1) Models (seasonal 6-month Experimental system)
Simple Composite Method (SCM): Simple composite of individual forecast with equal weighting. Experimental Designs and Data set Hindcast Periods & Target Season • APCC 6-month climate forecasts are based on 1-tier predictions from 6 institutions in the APEC region • 6-month Integration during the period of1983-2005 (23 years) • SCM (6month MME) : MAMJJA (spring, summer) season started from Feb 1st using CGCM
Predicted Niño3 Index • Indian Ocean Dipole mode index • Spatial distributions of forecasted SST Anomalies (SCM) over the tropical Indo-Pacific
APCC MAM
APCC JJA
NCEP MAM
NCEP JJA
POAMA MAM
POAMA JJA
SINT MAM
SINT JJA
SUT1 MAM
SUT1 JJA
UHT1 MAM
UHT1 JJA