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THORPEX Interactive Grand Global Ensemble (TIGGE). Progress on TIGGE Archive Center in CMA. GONG Jiandong, SUN Jing , CHEN Jing China Meteorological Administration. August 31, 2011 Geneva. Progress overview. 2006.07: Establish test platform

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Thorpex interactive grand global ensemble tigge

THORPEX Interactive Grand Global Ensemble (TIGGE)

Progress on TIGGE Archive Center in CMA

GONG Jiandong, SUN Jing,CHEN Jing

China Meteorological Administration

August 31, 2011Geneva

Thorpex interactive grand global ensemble tigge

Progress overview

  • 2006.07: Establish test platform

    • Prepare Infrastructure (LDM server, Internet connection)

    • Test TIGGE data receiving, from ECMWF & NCAR via LDM

    • Develop GRIB2 encoding and decoding software

  • 2006. 09: Upgrade Internet connection

    • Connect to CSTnet (China Science and Tech network)

    • Internet access rate upgraded to 100Mbps

  • 2006.11: Continuous data receiving test

    • About 8GB and 30,000 files received at CMA per day

  • 2007.2: Start routinely data providing and data receiving

    • Between CMA and ECMWF,NCAR

  • 2007.4: Fix the problem of losing data during the transmission between ECMWF

Thorpex interactive grand global ensemble tigge

  • 2007.5-8 : development of TIGGE data portal

  • 2007.07-2008.12 Using MARS system

    • Localize and test MARS system

    • Test MARS local running environment

    • Establish MARS environment

  • 2008.08: Data cutting and interpolation function based on user requirement

  • 2008.10-2009.4:Update LDM performance

    • upgrade high performance LDM data receive cache

    • Add one 16TB SAS store disk array

    • Update single LDM receive to multi LDM receive

    • Enlarge LDM server internal memory

  • 2009.05:Using SMS to monitoring TIGGE data exchange

Thorpex interactive grand global ensemble tigge

  • 2009.05:Use MARS for data archive

    • All TIGGE data use MARS to archive

    • Link MARS to CMA TIGGE portal

  • 2009.07:Upgrade data Portal start to running based on MARS.

  • 2010.10: System upgrade

    • Optimal network performance, keep the intactness of received data.

    • Established a TIGGE Data Management System to provide data retrieval services directly for users.

Tigge archive platform infrastructure and data processing
TIGGE Archive Platform Infrastructure and Data Processing

HPC systems

DATA R/D server

Fire wall

CMA users

DATA Proc server

Archive system

Online data

Internet users

Store disks array

Data Transfer

Data Service

Off-line data

Thorpex interactive grand global ensemble tigge

(2007 -

received data amount unstable. Data lost !

2010.1: ECMWF Model resolution increased

Received TIGGE DATA Amount Per Month(GB)

2008.09: CMA establish TIGGE received data intactness check.

2010.10: After network access equipment upgrade (100M  Gigabit) and network parameters tune, received data amount begin to keep stable.

Data service
Data service

CMA on-line monitoring and EPS comparing, 2.1TB (June 2011).

China domestic users off-line data services, 45TB (June 2011).

Shanghai EXPO, tropical cyclone data real-time download support.

TIGGE-LAM project, CMA regional EPS data archive, 3.6G/per day.

TIGGE Portal: 30 Users Website(, Among them, 6 from ECMWF、JMA and Brazil Area.

Thorpex interactive grand global ensemble tigge

Continue upgrade infrastructure in future



Replace 2 high-performance LDM received server

LDM Server


Srv-0: CSM Server

LDM Server




Real-time Data receive

User Search


Srv-2: LDM


Real-time Data receive


MARS client

Srv-3: NCL

Srv-4: LDM&FTP

History Data Resume


MARS server

LDM Server





Data visit service

LDM Server

Srv-6: MARS client

Share data through GPFS in Cluster





Upgrade high-performance FC RAID (200,000 IOPS)

Support to the lead centre on verification of eps web site
Support to the lead centre on verification of EPS web site

Upload CMA monthly statistics of GEPS verification from November 2009 up to the present;

Will add the reliability table and CRPS table according to the guideline (update: July 2011) ,before the end of 2011

The updated of reps at cma
The Updated of REPS at CMA

Operational implementation

Real time running.


on REPS over China

working on REPS based on the WMO BO8RDP project.

Jun 2011

Jun 2010

May 2009


Configuration of REPS

  • Model(WRF-ARW dynamical core)

  • 15km grid space, 31 vertical levels

  • 60h forecast

  • 15 members

Last wg meeting actions by cma
Last WG meeting actions by CMA

TIGGE data User statistics.

The technique used in CMA can not meet this requirement.

Adding TIGGE Data at 06/18 UTC.

Done, but too big data volume, and stopped

Action 8.10.2

Ms. Chen Jing discussed with GEO Secretary, no feedback.

Thorpex interactive grand global ensemble tigge



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