1. Markus Heene, DWD markus.heene@dwd.de
GISC DWD
Markus Heene, DWD

2. GISC DWD - Timeline 05/2010 First preoperational GISC in WIS
09/2010 Endorsement ET-GDDP
11/2010 CBS Recommendation
05/2011 Designation from WMO CG XVI
09/2011 Operations
GISC DWD

3. GISC DWD - Services Discover Access and Retrieval
Flexible Subscription Services
Time triggered
Event triggered
Metadata Editor
Hosting WIS Centre
GISC DWD

4. Contributions to WIS DWD participates several ETs, ICG, …
Released Metadata catalogue performance study to community  Geonetwork improvements
Shared results of DAR Metadata analysis with WIS community
Active member of jOAI community
DAR Metadata Generator
Released SRU2JDBC in co-operation with WMO as Open Source
AFD (Automatic File Distributor) flexible Open Source distribution software
Contribute expert for WIS Jump Start Offer
Support WMO WIS Branch with staff
GISC DWD

5. GISC DWD Connected DCPC ECMWF EUMETSAT Arctic Data Centre (met.no)
DKRZ
AWI
DLR
ESA (Italy) …
GISC DWD

6. Workflow – Connect DCPC – Metadata Exchange
GISC DWD

7. Workflow- Details Step 1 Step 2
Kick-off: Workshop, Telephone Conference, Conversation
Exchange Details: Scope of DCPC, WIS, Roles and Responsibility, …
GISC provides WIS documentation
DCPC provides ISO conform DAR Metadata
Step 2
Check DAR Metadata
GISC validates Metadata record (ISO 19139)
GISC imports Metadata record
Granularity: 100 or Metadata records ?
Necessary Elements: fileIdentifier and dateStamp (required for update but not ISO mandatory)
Check Online Resource
Check WMO recommendations
GISC DWD

8. Workflow- Details Step 3: Step 4:
GISC explains implemented procedures for Metadata exchange
OAI – standard for GISC to GISC Metadata exchange
DCPC provides OAI Server Address and OAI Set Name
GISC configures harvesting procedure
FTP – optional exchange procedure for DCPC or NC
Agree on push or pull – exchange server and account details
Agree on delete procedure
Step 4:
Test exchange procedure – functional tests
Use Cases: Create, Update, Delete Metadata Record
OAI
Incremental Harvesting – time attribute
Delete Operation – is optional according to OAI Spec
FTP
Test agreed delete Procedure
GISC DWD

9. Workflow- Details Step 5 Step 6 Operation test-phase
Integration of DCPC into OAI test bed
Bulk tests
Check robustness and reliability
Step 6
Operation phase if all tests passed and communication established
GISC DWD

10. Q&A
GISC DWD