wmo core profile

WMO Core Profile

of the ISO 19115 Metadata Standard

Steve ForemanChair IPET-Metadata Implementation

2Meeting Name(c) 2006

Contents

• Data challenges facing meteorology

• What is “metadata”?

• WMO approach to metadata

• Implementation of the Profile

Data Challenges

4Meeting Name(c) 2006

Challenges facing WMO

Regional Associations

R.A. IR.A. IAfricaAfrica(56 Members(56 Members))

R.A.IIIR.A.IIISouth AmericaSouth America(13 Members)(13 Members)

R.A. VR.A. VSouth-West PacificSouth-West Pacific(22 Members)(22 Members)

R.A. VIR.A. VIEuropeEurope(49 Members)(49 Members)

R.A. IVR.A. IVNorth North America, America, Central Central AmericaAmericaAnd the And the CaribbeanCaribbean(25 (25 Members)Members)

R.A. IIR.A. IIAsiaAsia(35 Members)(35 Members)

5Meeting Name(c) 2006

Challenges for WMO

Technical CommissionsBasic Commissions

Commission for Basic Systems (CBS)

Commission for Instruments and Methods of Observations (CIMO)

Commission for Hydrology (CHy)

Commission for Atmospheric Sciences (CAS)

Applications Commissions

Commission for Aeronautical Meteorology (CAeM)

Commission for Agricultural Meteorology (CAgM)

Joint WMO/IOC technical Commission for Oceanography and Marine Meteorology (JCOMM)

Commission for Climatology (CCl)

6Meeting Name(c) 2006

What is metadata?

• In this context it is not– the conditions at an observing site

• although– these can be described by metadata

WMO Approach

8Meeting Name(c) 2006

WMO Core metadata

Discover

Temperature in Sweden?

Stockholm,please

Select

Retrieve

9Meeting Name(c) 2006

WMO approach to metadata

• Build on existing standards– WMO

• GRIB and BUFR definitions

– ISO• 191xx series

– Geographic metadata (19115) – XML representation (19139)

– Open Geospatial Consortium

• Catalog service ?

10Meeting Name(c) 2006

WMO Core Profile

• Core metadata:– subset of full standard– most appropriate elements for field– some extensions to cover specific needs

11Meeting Name(c) 2006

Description of the dataset itselfWMO Core

Profile

Metadata

record

Data

Usage

Quality

Description of the metadata record for the dataset

Restrictions on how the data can be used

Quality assurance information

Profile - topics

12Meeting Name(c) 2006

Description of the dataset itselfWMO Core

Profile

Metadata

record

Data

Usage

Quality

Restrictions on how the data can be used

Quality assurance information

Identifier for metadata

Date metadata created

Language & character set of metadata

Metadata standard used

Co-ordinate systems used in metadata

Profile – Metadata

13Meeting Name(c) 2006

WMO Core

Profile

Metadata

record

Data

Usage

Quality

Description of the metadata record for the dataset

Restrictions on how the data can be used

Quality assurance information

Abstract

Topic

Keywords (used to list parameters)

Area and time covered by data

Language of data

Reference (eg URL)

Point of contact

How to get data – format, who to ask

Profile - Data

14Meeting Name(c) 2006

Description of the dataset itselfWMO Core

Profile

Metadata

record

Data

Usage

Quality

Description of the metadata record for the dataset

Quality assurance information

Permitted use (eg essential or additional data)

Time constraints (eg TAF validity)

Security

Profile - Usage

15Meeting Name(c) 2006

Description of the dataset itselfWMO Core

Profile

Metadata

record

Data

Usage

Quality

Description of the metadata record for the dataset

Restrictions on how the data can be used

Processing done on data

High level quality assessment of data

Profile - Quality

16Meeting Name(c) 2006

Multiple Languages

English French

Hello Bonjour

Monday Lundi

Weather Temps

Cat Chat

Chat Parler

Implementation of Profile

18Meeting Name(c) 2006

Profile - implementations

Future

20Meeting Name(c) 2006

WMO Profile Future

• Features & Coverages– describe relationships

211620Z EGLL EGLL 211620Z 19007KT 170V230 9999 FEW038 BKN060 20/11 Q1020 NOSIG

Summary

22Meeting Name(c) 2006

Summary

• Needed to make more use of data

• Profile based on ISO standard

• Version 1 for discovery

• Later versions– more detail– services

Questions?

24Meeting Name(c) 2006

Description of the dataset itselfWMO Core

Profile

Metadata

record

Data

Usage

Quality

Restrictions on how the data can be used

Quality assurance information

Identifier for metadata

Date metadata created

Language & character set of metadata

Metadata standard used

Co-ordinate systems used in metadata

Profile – Metadata

25Meeting Name(c) 2006

WMO Core

Profile

Metadata

record

Data

Usage

Quality

Description of the metadata record for the dataset

Restrictions on how the data can be used

Quality assurance information

Abstract

Topic

Keywords (used to list parameters)

Area and time covered by data

Language of data

Reference (eg URL)

Point of contact

How to get data – format, who to ask

Profile - Data

26Meeting Name(c) 2006

Description of the dataset itselfWMO Core

Profile

Metadata

record

Data

Usage

Quality

Description of the metadata record for the dataset

Quality assurance information

Permitted use (eg essential or additional data)

Time constraints (eg TAF validity)

Security

Profile - Usage

27Meeting Name(c) 2006

Description of the dataset itselfWMO Core

Profile

Metadata

record

Data

Usage

Quality

Description of the metadata record for the dataset

Restrictions on how the data can be used

Processing done on data

High level quality assessment of data

Profile - Quality