O AK R IDGE N ATIONAL L ABORATORY U.S. D EPARTMENT OF E NERGY Data Requirements for Climate and...
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Transcript of O AK R IDGE N ATIONAL L ABORATORY U.S. D EPARTMENT OF E NERGY Data Requirements for Climate and...
![Page 1: O AK R IDGE N ATIONAL L ABORATORY U.S. D EPARTMENT OF E NERGY Data Requirements for Climate and Carbon Research John Drake, Climate Dynamics Group Computer.](https://reader036.fdocuments.us/reader036/viewer/2022062413/5a4d1b607f8b9ab0599ad1b1/html5/thumbnails/1.jpg)
OAK RIDGE NATIONAL LABORATORYU.S. DEPARTMENT OF ENERGY
Data Requirements for Climate and Carbon
Research
John Drake, Climate Dynamics GroupComputer Science and Mathematics Division
http://www.scidac.org/CCSM
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OAK RIDGE NATIONAL LABORATORYU.S. DEPARTMENT OF ENERGY
SciDAC: Collaborative Design and Development of the Community Climate System Model
• DOE, NSF, NASA-DAO Collaborative Effort• Coordination – Malone(LANL), Drake(ORNL), Kiehl(NCAR)• Coupler – Bettge (NCAR), Larson (ANL)• Community Atmospheric Model – Williamson(NCAR), Drake(ORNL),
Lin(NASA), Mirin(LLNL)• POP Ocean Model – Malone(LANL), Gent(NCAR)• Chemistry and Biogeochemistry – Rotman(LLNL), Erickson(ORNL)• Ice model – Hunke(LANL)• Common Land Model – Bonan (NCAR)
• Software Coordination – Craig (NCAR)• Performance Evaulation – Bailey(LBNL), Worley (ORNL)• Grids and Frameworks:
• SciDAC/Earth System Grid – Williams(PCMDI), • NASA HPC/ Earth System Modeling Framework
• Other SciDAC projects and the Integrated Software Infrastructure CentersSponsored by DOE/OASCR and OBER as well as NSF and NASA
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OAK RIDGE NATIONAL LABORATORYU.S. DEPARTMENT OF ENERGY
Global Climate Change Analysis
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OAK RIDGE NATIONAL LABORATORYU.S. DEPARTMENT OF ENERGY
Courtesy Warren Washington
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OAK RIDGE NATIONAL LABORATORYU.S. DEPARTMENT OF ENERGY
Climate Science Enabled
Science 13April 2001: “Detection of Anthropogenic Climate Change in the Worlds Oceans,” Barnett, Pierce, Schnur
Method: Ensemble simulations of the DOE Parallel Climate Model (PCM)
Results: • Detection of Anthropogenic Climate Change in the Worlds Oceans• Ensembles establish 95% confidence intervals of model predictions• Simulated ocean heat storage matches historical record of rising ocean
temperatures
Enabling Technology: • Parallel Climate Model
developed in collaborative effort lead by Warren Washington (NCAR)
• Terascale computing resources
Firsts: • Ensemble study with US model and computers • Coupled model reproducing ocean response• Establishing new level of US model quality
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OAK RIDGE NATIONAL LABORATORYU.S. DEPARTMENT OF ENERGY
Teams Using Multiple Centers• DOE Supports Analysis and Archiving of Climate
Data at PCMDI.
NASA DAO
PCMDI NCAR
GFDLLANL
ORNL-CCS
LANL
NERSC
NCDC
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OAK RIDGE NATIONAL LABORATORYU.S. DEPARTMENT OF ENERGY
Diagonstic Analysis of Coupled Models
Courtesy PCMDI
Courtesy CCSM/AMWG
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OAK RIDGE NATIONAL LABORATORYU.S. DEPARTMENT OF ENERGY
Tools
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OAK RIDGE NATIONAL LABORATORYU.S. DEPARTMENT OF ENERGY
Climate Scientific Directions
2000/2001 2006/2007Global Models Current
EstimatesConfigurations:
Atmosphere 230kmL18 30km/L60(75x)
Ocean 100kmL40 10km/L40(25x)
Model years/day 5 100(20x)Sustained(Gflops) 6.4 9600 (1500x)Storage (TB/century) 1 100At current scientific complexity a century/day at 2006 configurations
requires a sustained capability of 10Tflops for a single case
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OAK RIDGE NATIONAL LABORATORYU.S. DEPARTMENT OF ENERGY
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OAK RIDGE NATIONAL LABORATORYU.S. DEPARTMENT OF ENERGY
Challenges• Integration with existing tools• Extension of existing tools for multiple component climate system models• Speed of transfers• Parallelism: I/O(NetCDF) and analysis• Metadata and Grid databases• Analysis of ensembles• Advanced statistical methods for analysis of coupled systems.