CBS Ext(2014) / RA III-16 TECO / RECO WIGOS Metadata Steve Foreman, WIGOS Secretariat For TT-WMD...

CBS Ext(2014) / RA III-16TECO / RECO

WIGOS MetadataSteve Foreman, WIGOS Secretariat

For TT-WMD

WMO; CBS Ext(2014) / RA III-16

2

WIGOS metadata

Context High level contents Next step

CBS Ext(2014) / RA III-16

Context

WMO Integrated Observing System - Metadata

Aims to support Use of observations Planning observation networks

Constraints Applicable to all types of observations Acceptable to governments of all countries

WIGOS metadata

Principles for WIGOS Metadata

Include the information that enables users to make adequate use of observational data [also for climate applications]

Every piece of metadata shall have date/time information associated with it

All metadata associated with internationally exchanged data shall be made available

Metadata shall be updated in a timely manner to support adequate interpretation of data

Standard should be applicable to all disciplines Standard should be forward-looking but also respect legacy

(e.g., Vol. A) Standard should be acceptable to all Members Standard should be applicable for all Members

WIGOS metadata

Principles for WIGOS Metadata

Include the information that enables users to make adequate use of observational data [also for climate applications]

Every piece of metadata shall have date/time information associated with it

All metadata associated with internationally exchanged data shall be made available

Metadata shall be updated in a timely manner to support adequate interpretation of data

Standard should be applicable to all disciplines Standard should be forward-looking but also respect legacy

(e.g., Vol. A) Standard should be acceptable to all Members Standard should be applicable for all Members

WIGOS metadata

Explain observations

Over time

For all exchanged observations

In time to be useful

For all types of observation

Expand what we record

Achievable

Relevant

1. Observed Quantity

2. Purpose of Observation

3. Data Quality

4. Environment

5. Data Processing and Reporting

6. Sampling and Analysis

7. Station/Platform

8. Method of Observation

9. Ownership and Data Policy

10. Contact

High level content



3. Data Quality

4. Environment



7. Station/Platform



10. Contact

Observed quantity

Atmospheric:

Temperature (F)

Humidity (%)

Wind (mph)

Rainfall (inches)

Visibility (miles)

High level content



3. Data Quality

4. Environment



7. Station/Platform



10. Contact

High level content

Purpose

Urban meteorology

US domestic stations



3. Data Quality

4. Environment



7. Station/Platform



10. Contact

High level content

Data quality

Quality flags



3. Data Quality

4. Environment



7. Station/Platform



10. Contact

High level content

Environment

In a screen

On a rooftop platform



3. Data Quality

4. Environment



7. Station/Platform



10. Contact

High level content

Data processing

Hourly reporting

Pressure tendency derived from manual interpretation of

barograph trace.

Hand written logs



3. Data Quality

4. Environment



7. Station/Platform



10. Contact

High level content

Sampling and analysis

Winds averaged over ten minutes



3. Data Quality

4. Environment



7. Station/Platform



10. Contact

High level content

Station platform

Region: IV

Country: USA

Name: New York Roof 10

Type: Land station

Id: int.wmo.wigos-0-153-3-157

Location: 40°44′54.36″N 73°59′08.36″W

Data comms: Telephone



3. Data Quality

4. Environment



7. Station/Platform



10. Contact

High level content

Purpose

Urban meteorology

US domestic stationsEnvironment

In a screen

On a rooftop platform

Data quality

Quality flags

Method (visibility)

Visual

Standard reference landmarks

Obs Range: not available



3. Data Quality

4. Environment



7. Station/Platform



10. Contact

High level content

Ownership

Responsible: NWS

Data policy: WMO Essential



3. Data Quality

4. Environment



7. Station/Platform



10. Contact

High level content

Contact

USA Focal Point for Observations

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Tailoring the standard

Each element marked as: Mandatory

Required for all WIGOS metadata records Conditional

Required only in specified circumstances instrument calibration makes little sense for a human

observer

Optional Extremely useful, but too challenging to make

compulsory


Next step

Considerations for WIGOS Metadata

Creating metadata Levels of detail

Transmission Various intervals for

(incremental) update

Access and use By humans (researchers,

managers, the public) By machines (services)

Rather invariant

Very dynamic

intermediate

WIGOS metadata

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Next steps

Task Team on WIGOS Metadata Development Develop data representations

Members Review systems

To capture metadata To retain existing metadata

WMO Co-ordinate sharing mechanisms


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Phased implementation

2016 2017-18 2019-2020

Mandatory and straightforward

Conditional and straightforward

Optional and straightforward

Likely to need more data gathering or to need changes to procedures

All remaining elements


See Doc 3.3(1) – Recommendation 3, Appendix 24

(in the file -Annex-2-…)

All WMO-No 9 Vol A elements are required in 2016

Summary

24

WIGOS Metadata - summary


Explain observations

Over time

For all exchanged observations

In time to be useful

For all types of observation

Expand what we record

Achievable

Relevant

www.wmo.int 25

Thank you for your [email protected]


CBS Ext(2014) / RA III-16 TECO / RECO WIGOS Metadata Steve Foreman, WIGOS Secretariat For TT-WMD...

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