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WDC Climate: Access to ECHAM5/MPI-OM AR4 Scenarios

Michael Lautenschlager (Presentation)M&D Team (Work)

World Data Center ClimateModel & Data / Max-Planck Institute for Meteorology

MPI-M WS: Climate Change Scenarios and their Use for Impact Studies

29 + 30. September 2005, Hamburg

http://ipcc.wdc-climate.de/

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Content

Data Storage in WDC Climate

Availabilty of ECHAM5/MPI-OM AR4 Scenarios

Data Access

Next Steps

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Start: Approved in January 2003

Maintenance: Model and Data (M&D/MPI-M) and German Climate Computing Centre (DKRZ)

Mission: Data for climate research are collected, stored and disseminated

ICSU Policy: long-term archiving and unrestricted data access for scientists

Restriction: Only climate data products in CERA DB, no raw data storage.

Content: Emphasis is spent on climate modelling and related data products.

Co-operation: with thematically corresponding data centres like WDC-MARE (Bremen) and WDC-RSAT (Oberpfaffenhofen)

URL: http://www.wdc-climate.de/

The ICSU World Data Centerfor Climate (WDCC)

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WDCC Content

ERA40

IPCC

CEOPBALTEX HOAPS

CARIBIC

WOCE

ERA15/40NCEP

GEBCO

COSMOS

Simulations @ MPI, GKSS,…

Data from Earth SystemModelling andRelated Observations

EH5/MPI-OMIPCC-AR4

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160

100

50

09.03 12.04 09.0501.002 TB 20 TB 120 TB

Development of WDCC DB ContentECHAM5/MPI-OM IPCC AR4 Scenarios (ca. 80 TB)

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Current database size is 171.4382 Terabyte Number of experiments: 560 Number of datasets: 65266 Number of blob within cera at 07-SEP-05: 4,487,162,740

WDCC Access as Data Downloads per MonthJan. – Aug. 2005

Volume of DLs: 1.9 – 8.2 TB / monthNumber of DLs: 4000 – 184,000 per month

Jan. – Jul. 2005Access to EH5/MPI-OM IPCC AR451,000 data downloads

WDCC Statistics

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WDCC DB StorageStorage of globalcoverages per file or BLOB :

all levels, all parametersarbitrary time intervals

all levels, all parameters1 moment (6 by 6 hours)

1 level, 1 parameter1 moment

(= 1 BLOB = 1 global field)

parameters

leve

lsda

ys/4

days

/4

parameters

leve

lstim

e

how we get the grid data:Files from climate model

postprocessing step 1: homogenizing time and calculation of diagnostics

postprocessing step 2:isolation of levels &parameters and creationof BLOB table input

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Availabilty of ECHAM5/MPI-OM IPCC AR4 Scenarios

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http://ipcc.wdc-climate.de/

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User Interface 3: Direct Access

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DKRZ

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http://www-pcmdi.llnl.gov/ipcc/data_status_tables.pdf

IPCC WG I Data Archiveat PCMDI/LLNL

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Data Access

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Selection via CERA meta data:

selection of the experiment (=model run)

display of meta data: experiment, quality, datasets

selection of the dataset

display of dataset information

add datasets to “process list”

select time span and download from tape archive to data server and to the client

User Interface 1:The Present Applet

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User Interface 2:jblob Command for data download

Retrieval by Unix script :

• Java based – for Unix/Linux and Windows

• JDBC connection

• examples :jblob –datasetname <name> -optionsjblob –datasetid <id> -optionsjblob –showdatasets “<search_string>”

(% as wildcard)

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User Interface 3: Direct Accessht

tp://

ipcc

.wdc

-clim

ate.

de/

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Next Steps

MPI-OM data of IPCC AR4 calculations will be included in the WDC Climate.

ECHO-G results are provided by Uni. Bonn / Korea and will be incuded in the WDC Climate.

Calculation of RCM IPCC AR4 scenarios for Europe:REMO 10 km CLM 1/6 degr. REMO + CLM 0.44 degr.

SGA (Service Group Adapation) provides support for RCM data and related observations (DWD) especially for R&D projects in BMBF's funding priority "Research for Climate Protection and Protection from Climate Impacts" (http://sga.wdc-climate.de)

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Contact and Information

Central entry for IPCC data: http://ipcc.wdc-climate.de/

WDCC user account + contact:Email to data@dkrz.de containing name, institute, address

Distribution of news via mad_info mailing listSubscrition by email to majordomo@dkrz.de containing

mad_info in the message body