Coordinated Regional Downscaling Experiment CORDEX South Asia data

Co-ordinated Regional Downscaling Experiment (CORDEX) - South Asia data system Milind Mujumdar and Sandip Ingle mujum@tropmet. res. in Centre for Climate Change Research (CCCR), Indian Institute of Tropical Meteorology (IITM), Pune. http: //www. tropmet. res. in Centre for Climate Change Research

Assessment of impacts of regional climate change High resolution dynamic downscaling of the South Asian monsoon • Quantify and reduce uncertainties in regional climate projections • Dynamic downscaling based on multiple model ensemble simulations Domain: South and West Asia Centre for Climate Change Research

IITM’s role in CORDEX-SA program • Generation of High resolution downscaled data. • Analysis and assessment of CORDEX-SA model projections • Co-ordinate data distribution, archival and hosting of data at CCCR-IITM in standard format. • Provide tools that help stakeholders to download data, and generate products that are easy-to-create and understand. Centre for Climate Change Research

CORDEX simulations at IITM • CORDEX South Asia RCM runs on IITM HPC • LMDz: evaluation- 20 years; historical- 110 years; future scenario- 95 years • Reg. CM 4: evaluation-20 years; historical- 110 years; future scenario-56 years • CORDEX South Asia RCM runs from partners • SMHI-RCA 4: evaluation- 20 years; historical- 110 years; future scenario- 95 years • COSMO-CLM: historical- 110 years; future scenario-95 years Centre for Climate Change Research

Efforts for Integrating and delivering scientific data products to the CORDEX-South Asia community • Archived evaluation runs (IITM-LMDz, IITM-Reg. CM 4) in CORDEX specified format • The Integrated Rule-Oriented Data System (i. RODS) application is developed with partnership between the Data Intensive Cyber Environnements (DICE) Group and the i. RODS Consortium. • i. RODS is implemented in the CCCR for managing and sharing CCCR-hosted model outputs data products • Few selected monthly & daily variables are being released by end of September 2013. Centre for Climate Change Research

Implementation of the Analysis & Evaluation Tools in Data Portal • Live Access Server (LAS) for online analysis of observations & model data • The Regional Climate Model Evaluation System (RCMES) developed by NASA Jet Propulsion Laboratory (JPL) & UCLA is adopted as an evaluation tool for CORDEX South Asia • RCMES will help make satellite observations, in conjunction with in-situ, assimilated, and reanalysis datasets, more readily accessible to the regional climate modeling community • The system includes a central database (Regional Climate Model Evaluation Database: RCMED) to store multiple datasets in a common format and codes for calculating predefined statistical metrics to assess model performance (Regional Climate Model Evaluation Tool: RCMET) Centre for Climate Change Research

CORDEX-South Asia Multi-Model Output Historical (1950 – 2005) Space required for each variable is approx. 4 GB (To be available by end of September 2013) Variable name (Monthly and Daily) SMHI-RCA 4 Reg. CM 4 -GFDL Reg. CM 4 -LMDZ COSMO-CLM LMDZ Rainfall (pr) Y Y Y Surface Air Temperature (tas) Y Y Y Surface Air Temp. Maximum (tasmax) Y Y Y Surface Air Temp. Minimum (tasmin) Y Y Y Sea-level Pressure (psl) Y Y Y Surface Specific Humidity (huss) Y Y Y Surface Zonal Wind (uas) Y Y Y Surface Meridional Wind (vas) Y Y Y Downward Shortwave Radiation (rsds) Y Y Y Centre for Climate Change Research

CORDEX-South Asia Multi-Model Output Evaluation Run (1989 – 2008) Space required for each variable is approx. 512 MB (To be available by end of September 2013) Variable name (Monthly and Daily) SMHI-RCA 4 Reg. CM 4 -GFDL Reg. CM 4 -LMDZ COSMO-CLM LMDZ Rainfall (pr) Y Y Y Surface Air Temperature (tas) Y Y Y Surface Air Temp. Maximum (tasmax) Y Y Y Surface Air Temp. Minimum (tasmin) Y Y Y Sea-level Pressure (PSL) Y Y Y Surface Specific Humidity (huss) Y Y Y Surface Zonal Wind (uas) Y Y Y Surface Meridional Wind (vas) Y Y Y Downward Shortwave Radiation (rsds) Y Y Y Centre for Climate Change Research

CORDEX-South Asia Multi-Model Output RCP 4. 5 scenario (2006 - 2100) Space required for each variable is approx. 1. 5 GB (To be available by end of 2013) Variable name (Monthly and Daily) SMHI-RCA 4 Reg. CM 4 -GFDL Reg. CM 4 -LMDZ COSMO-CLM LMDZ Rainfall (pr) Y Y Y Surface Air Temperature (tas) Y Y Y Surface Air Temp. Maximum (tasmax) Y Y Y Surface Air Temp. Minimum (tasmin) Y Y Y Sea-level Pressure (PSL) Y Y Y Surface Specific Humidity (huss) Y Y Y Surface Zonal Wind (uas) Y Y Y Surface Meridional Wind (vas) Y Y Y Downward Shortwave Radiation (rsds) Y Y Y Centre for Climate Change Research

i. RODS based Climate Simulation Data Management in CCCR Climate Data Portal Data management and sharing CCCR-hosted model outputs data products that are planned to be published by end of September 2013. Current status Phase I: in-house Policy based data management and sharing – Completed Phase II: on-site CORDEX policy based data sharing – Tested Phase III: Data grid- CORDEX data publishing – September 2013 WCRP CORDEX South Asia Training Workshop The objective of the workshops Evaluation of regional climate downscaling products and assessment of regional climate change projections with the uncertainties involved in it over South Asia. In addition to the modeling and simulation diagnostics, the judgment of local / regional experts from Asian region will provide relevant and reliable regional climate change information for Vulnerability, Impact and Adaptation (VIA) studies vital for climate services. Centre for Climate Change Research

Overview of CCCR Data Server HP Proliant DL 380 G 7 Server Processor: 2 x Xenon X 5670 Speed: 2. 93 GHz, RAM 128 Gb, 4. 5 TB SAS Disk Storage Capacity: 24 Tb x 5 (120 TB) with RAID 6 OS: Red Hat Linux Enterprise (RHEL) Data analyses & visualization: LAS-v 8 Data archival & management: i. RODs-v 3. 2 Internet Band width: 100 Mb/s Centre for Climate Change Research

CCCR web portal link Sandip Ingle, T. P. Sabin, J. Revadekar and Milind Mujumdar Centre for Climate Change Research

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Centre for Climate Change Research

Centre for Climate Change Research