Metadata (for the data users downstream)

RFC GIS WorkshopJuly 2007

NOAA/NESDIS/NGDCAnna.Milan@noaa.gov

Documentation

Metadata Team Partnership

DataProvider

DirectUsers

Archive

MetadataManager

DataManager

UnknownUsers

User communities should be able to understand the information without needing the assistance of the experts who produced the information.

What is Documentation? What is the content of the data?

Who created the data?

When was it created?

Where is it geographically?

How was the data developed?

Why was the data developed?

Standard Documentation Provides a common set of terminology and

definitions

Enables usability of data for broad communities

Enables communities to archive, search and access data easily

Critical to preserving the understanding of data

Standard Documentation Helps... Data producers and providers to manage and

evaluate data

Data consumers to discover, assess and obtain data

Enable computer based interoperability

to

Evolution of Geospatial Standards

ISO 19115 – 2

ISO 19115/NAPFGDC Remote

Sensing ExtensionsFGDC

NOAA

Supplemental

DIF

OGC Sensor Web Enablement?

Geospatial Content Standards Content Standard for Digital Geospatial Metadata

Extensions for Remote Sensing Metadata Biological Data Profile Profile for Shoreline Data

ISO 19115:2003 Geographic Information – Metadata North American Profile of ISO 19115:2003 ISO 19115-2: Extensions for imagery and gridded data WMO Profile of ISO 19115

OGC Sensor Web Enablement

Source: http://portal.opengeospatial.org/files/?artifact_id=15540

OGC Sensor Web Enablement Observations and Measurements (Application

Schema) For encoding sensor observations

OpenGIS® Sensor Model Language (SensorML) Implementation Specification For describing sensor characteristics (geolocation ,

response)

OpenGIS® Sensor Observation Service (SOS) Implementation Specification How to access SML and O&M

Creation to User Discovery

Documentation

MetadataRecordMetadata

RecordMetadataRecordStandards

DiscoveryPortals

DistributionWebsite

ArchivesArchives

Management ToolsStandard documentation enables usage of standard

management tools

Some Resources NOAA Metadata Manager and Repository (NMMR) Metadata Enterprise Resource Management Aid

(MERMAid) ESRI ArcGIS Metadata ISO Metadata Editor (IME) More resources listed at FGDC website

Discovery ToolsStandard documentation enables usage of standard

discovery tools

Some resources Geospatial One-Stop

http://gos2.geodata.gov/wps/portal/gos NASA Global Change Master Directory

http://gcmd.nasa.gov/ NSDI FGDC Clearinghouse

http://clearinghouse3.fgdc.gov/ NBII Clearinghouse

http://mercury.ornl.gov/nbii/

Discovery Tools

Published Documentation

Published Documentation

Best Practices Standard documentation should be recorded

throughout the life of a dataset. Planning > processing > analysis > publication and

subsequent revisions

Institutionalize standard documentation production and maintenance in your centers

Make standard documentation a key component of data development and management process

Use standard vocabulary!

FGDC Base Standard

http://www.fgdc.gov/csdgmgraphical/index.html

Best Practices Metadata records usually include the basics –

Identification – title, originator, abstract, keywords Distribution – Contact, output formats, links

Spatial Organization Raster or vector data

Spatial Reference Information

Data Quality

Spatial Referencing in FGDC

Spatial Referencing in FGDC

Spatial Reference Sample

RFC Monthly Precipitation Metadata RFC Monthly Precipitation metadata record

published by NCDC http://ngdc.noaa.gov/nmmr/xmls/fgdc.jsp?id=gov.noaa.n

cdc:C00389&view=classic

RFC Monthly Precipitation Metadata

RFC Monthly Precipitation Metadata

Collection Versus Granule

Granule Level Collection Level

dynamic static/quasi-static

real-time archive

time stamp of a data file temporal coverage spans dataset lifespan

specific location general bounding area

for data use for data discovery

syntactic descriptions semantic descriptions

Rich Inventory (Specialized) FGDC Metadata (Standard)

Rich Inventory for AOT Data

Rich Inventory for GOES Winds

MADIS Quality Map Viewer

Wrap Up

Be Good Data Stewards

RFC and Documentation? Current practices?

Issues/ideas?

Questions?

Other?

Resources FGDC Website

Geospatial One Stop

NASA Global Change Master Directory

Open Geospatial Consortium

Resources (Tools)Small sample of metadata editing tools available:

NOAA Metadata Manager and Repository (NMMR) Web-based interface link for managing FGDC metadata hosted

by NOAA/NGDC

Metadata Enterprise Resource Management Aid (MERMAid) Web-based interface for managing FGDC metadata hosted by

NOAA/NCDDC

ISO Metadata Editor (IME) Downloadable software for creating ISO metadata files

Standards & Specifications Content Standard for Digital Geospatial Metadata

(version 2.0), FGDC-STD-001-1998 (PDF)

Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata, FGDC-STD-012-2002 (PDF)

North American Profile of ISO 19115 (PDF draft)

Standards & Specifications ISO 19115:2003 Geographic Information -

Metadata

ISO 19115-2: Geographic information — Metadata — Part 2: Extensions for imagery and gridded data unpublished work, in development

Sensor Web Enablement Overview from Open Geospatial Community (SWE)