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Andrea de Bono

Prise en main de GeoNetwork: gestion et publication de métadonnées & harvesting et échange de métadonnées. Andrea de Bono. C ertificat G éomatique - 16.02.2012. Contents. Introduction to GeoNetwork OpenSource 1 Explore software and data using FAO GeoNetwork

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Andrea de Bono

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  1. Prise en main de GeoNetwork: gestion et publication de métadonnées &harvesting et échange de métadonnées • Andrea de Bono Certificat Géomatique - 16.02.2012

  2. Contents Introduction to GeoNetwork OpenSource 1 Explore software and data using FAO GeoNetwork Search, View, Download (data and services) 2 Create your Spatial Information Management System (SIMS) 2.1 Customize your GeoNetwork : Login, explore admin part, categories, groups, user… 2.2 populate your GeoNetwork 2.2.1) Insert existing metadata: Single file, batch import (sample files, ) Publish (roles, permissions) 2.2.3) Create your metadata: Add template, Create a template, ISO elements, fill fields, Publish 2.2.3) Add data from a remote node: Harvest data by using CSW, WMS, GeoNetwork node 2.3 Useful tips 2 Certificat Géomatique - 16.02.2012

  3. Introduction to GeoNetwork OpenSource Much more than a simple metadata catalog….. 3 Certificat Géomatique - 16.02.2012

  4. Introduction to GeoNetwork OpenSource GeoNetwork opensource is a standard based and decentralizedspatial information management system, designed to enable access to geo-referenced databases and cartographic products from a variety of data providers through descriptive metadata, enhancing the spatial information exchange and sharing between organisationsand their audience, using the capacities and the power of the Internet. 4 Certificat Géomatique - 16.02.2012

  5. Introduction to GeoNetwork OpenSource 5 Certificat Géomatique - 16.02.2012

  6. Introduction to GeoNetwork OpenSource Main Features 1) Instant search on local and distributed geospatial catalogues 2) Uploading and downloading of data, documents, PDF’s and any other content 3) An interactive Web map viewer that combines Web Map Services from distributed servers around the world 4) Online map layout generation and export in PDF format 5) Online editing of metadata with a powerful template system 6) Scheduled harvesting and synchronization of metadata between distributed catalogues 7) Groups and users management 8) Fine grained access control 6 Certificat Géomatique - 16.02.2012

  7. 1) Explore software and data using FAO Geonetwork • 1) Instant search on local and distributed geospatial catalogues 7 Certificat Géomatique - 16.02.2012

  8. 1) Explore software and data using FAO Geonetwork • 2) Uploading and downloading of data, documents, PDF’s and any other content Export metadata Download data Create documents 8 Certificat Géomatique - 16.02.2012

  9. 1) Explore software and data using FAO Geonetwork 3) An interactive Web map viewer that combines Web Map Services from distributed servers around the world 4) Online map layout generation and export in PDF format 9 Certificat Géomatique - 16.02.2012

  10. 1) Explore software and data using FAO GeoNetwork Main Features 5) Online editing of metadata with a powerful template system 6) Scheduled harvesting and synchronization of metadata between distributed catalogues 7) Groups and users management 8) Fine grained access control http://127.0.0.1:8080/geonetwork/srv/en/main.home 10 Certificat Géomatique - 16.02.2012

  11. 2 Create your SIMS: - 2.1 Customize your GeoNetwork 1 2 11 Certificat Géomatique - 16.02.2012

  12. 2 Create your SIMS: - 2.1 Customize your GeoNetwork Login (admin admin) Load a template (Administration tab) 12 Certificat Géomatique - 16.02.2012

  13. 2 Create your SIMS: - 2.1 Customize your GeoNetwork Create group (Administration tab) Group name: Geom2012 13 Certificat Géomatique - 16.02.2012

  14. 2 Create your SIMS: - 2.1 Customize your GeoNetwork Create user (Administration tab) User name: vistorPWD: visitor 1. Administrator Profile: All 2. User Administrator Profile: All excepted system administration and configuration tasks 3. Content Reviewer Profile: Rights on reviewing metadata content within the own group and authorizing its publication 4. Editor Profile: Full rights on creating/editing/ deleting new/old data within the own group 5. Registered User Profile Right to download protected data Check your right an log you again as admin 14 Certificat Géomatique - 16.02.2012

  15. 2 Create your SIMS: - 2.1 Customize your GeoNetwork Change categories (Administration tab) 1) Delete existing categories 2) Add new categories Categories to add (from INSPIRE) Administrative_units Protected_sites Elevation Natural_risk_zones Land_cover Interactive_resources(used for store services) 15 Certificat Géomatique - 16.02.2012

  16. 2 Create your SIMS: - 2.1 Customize your GeoNetwork Create alias “Localization” (Administration tab) Eliminate “_” NB save after each operation !! 16 Certificat Géomatique - 16.02.2012

  17. 2 Create your SIMS: - 2.2 populate your GeoNetwork Exercise 1): Insert existing metadata • From … download the metadata_xls.zip and unzip on your local disk • From the FAO GeoNetwork Download metadata for forest geospatial dataset (Global extent) and save the xml file in the metadata_xls folder • Upload on (your) GeoNetwork: (see below) Copy/paste your path 17 Certificat Géomatique - 16.02.2012

  18. 2 Create your SIMS: - 2.2 populate your GeoNetwork Exercise 1): Insert existing metadata • Move to appropriate category (one by one…) • Publish metadata (one by one) 18 Certificat Géomatique - 16.02.2012

  19. 2 Create your SIMS: - 2.2 populate your GeoNetwork • Logout and explore the results 19 Certificat Géomatique - 16.02.2012

  20. 2 Create your SIMS: - 2.2 populate your GeoNetwork Create your metadata following the ISO 19115 standard….. 20 Certificat Géomatique - 16.02.2012

  21. 2 Create your SIMS: - 2.2 populate your GeoNetwork Note that TC211/ISO:19115:2003 is not itself a format, but a standard for defining formats and profiles. To comply with the ISO:19115:2003 metadata standard a data format (or profile) must define a core set of metadata elements as shown below. This list contains metadata elements answering the following questions: Does a dataset on a specific topic exist (‘what’)?, For a specific place (‘where’)?, For a specific date or period (‘when’)? A point of contact to learn more about or order the dataset (‘who’)? . 21 Certificat Géomatique - 16.02.2012

  22. 2 Create your SIMS: - 2.2 populate your GeoNetwork Mandatory fields are often insufficient….. …optional but critical fields : Keywords Spatial Representation Type Geographic Location Reference System Info Temporal Extent Data Quality Info Access and Use Constraints Point of Contact Distribution Info: Online Resources. 22 Certificat Géomatique - 16.02.2012

  23. 2 Create your SIMS: - 2.2 populate your GeoNetwork Main metadata sections 23 Certificat Géomatique - 16.02.2012

  24. 2 Create your SIMS: - 2.2 populate your GeoNetwork Mandatory fields: * Filled by GeoNetwork 24 Certificat Géomatique - 16.02.2012

  25. The ISO 19115– Identification 1 Identification Point of contact 25 Certificat Géomatique - 16.02.2012

  26. The ISO 19115– Identification 2 Thematic Geographic NB ISO topic cat. NEED to change!! 26 Certificat Géomatique - 16.02.2012

  27. The ISO 19115– Identification 3 Thematic Geographic 27 Certificat Géomatique - 16.02.2012

  28. The ISO 19115– Reference system NB you need a code Filled by Geonetwork (WGS 1984) 28 Certificat Géomatique - 16.02.2012

  29. The ISO 19115- Lineage Information about data processing 29 Certificat Géomatique - 16.02.2012

  30. The ISO 19115– Distribution Information The address used for download the resource The address used for information about the resource The address used for visualize/download the resource (OGC web services) 30 Certificat Géomatique - 16.02.2012

  31. The ISO 19115– Spatial representation RASTER Data Number of rows X Number of Columns Y Thematic dimension Z 31 Certificat Géomatique - 16.02.2012

  32. The ISO 19115– Metadata Unique identifier Filled by Geonetwork Mandatory 32 Certificat Géomatique - 16.02.2012

  33. 2 Create your SIMS: - 2.2 populate your GeoNetwork Exercise: Create your own metadata (ISO 19115) Data source: http://ngdc.noaa.gov/mgg/global/global.html Dataset: ETOPO1 Ice Surface Download link (copy from): grid-registered, georeferencedtiff Interactive map link: http://129.194.231.202/ArcGIS/services/World/wd_etopo1/MapServer/WMSServer On Geonetwork: New metadata (Administration tab) 33 Certificat Géomatique - 16.02.2012

  34. Intro- Introduction - Blabla Publish your data 34 Certificat Géomatique - 16.02.2012

  35. 2.2 populate your GeoNetwork- Add data from a remote node How exchange metadata in a shared environment? Distributed search and harvesting Distributed search: perform a search over all the nodes at the same time. Harvestingis the process of collecting remote metadata and storing them locally for a faster access. This is a periodic process to do, for example, once a week. Harvesting is not a simple import: local and remote metadata are kept aligned. Using some magic, one GeoNetwork node is capable of discovering metadata that have been added, removed or updated in the remote node. 35 Certificat Géomatique - 16.02.2012

  36. 2.2 populate your GeoNetwork- Add data from a remote node • The harvesting mechanism is based on the concept of a universally unique identifier (UUID). This is a special id because it is not only unique locally to the node that generated it but it is unique across all the world. It is a combination of the network interface’s MAC address, the current date/time and a random number. Every time you create a new metadata in GeoNetwork, a new UUID is generated and assigned to it. • Another important concept behind the harvesting is the last change date. Every time you change a metadata, its last change date is updated. 36 Certificat Géomatique - 16.02.2012

  37. 2.2 populate your GeoNetwork- Add data from a remote node These two concepts allow GeoNetwork to fetch a remote metadata, check if it has been updated and remove it locally if it has been removed remotely. Furthermore, thanks to UUIDs, a hierarchy of harvesting nodes can be built where B harvests from C and A harvests from B. Even loops can be created because harvested metadata cannot be modified The harvesting process goes on until one of the following situations arises: - An administrator stops (deactivates) the node. - An exception arises. In this case the node is automatically stopped. When a harvesting node is removed, all harvest metadata are removed too. 1. The harvesting engine does not store harvesting results. This implies that if the server is restarted the last results are lost. 2. Changes to the harvesting parameters (for example privileges and categories) are taken into account in the next harvesting run. 37 Certificat Géomatique - 16.02.2012

  38. 2.2 populate your GeoNetwork- Add data from a remote node Unique UUID (only one copy will be stored!!) B A C a a a harvesting harvesting harvesting D a Nodes: A, B, C, D Metadata: a 38 Certificat Géomatique - 16.02.2012

  39. 2.2 populate your GeoNetwork- Add data from a remote node 39 Certificat Géomatique - 16.02.2012

  40. 2.2 populate your GeoNetwork- Add data from a remote node WMS http://129.194.231.202/ArcGIS/services/EnviroGrids/modis_2008/MapServer/WMSServer WMS 40 Certificat Géomatique - 16.02.2012

  41. 2.2 populate your GeoNetwork- Add data from a remote node - GeoNetwork This is the original (not harvested) source Reduce the number of entries GeoNetwork node 41 Certificat Géomatique - 16.02.2012

  42. 2.2 populate your GeoNetwork- Add data from a remote node - CSW http://lris.scinfo.org.nz/feeds/csw/?service=CSW&request=GetCapabilities&acceptVersions=2.0.2&acceptFormats=application/xml CSW 42 Certificat Géomatique - 16.02.2012

  43. Extras- Introduction - Blabla Create your template Child/Parent OGC CSW (your) Server configuration 43 Certificat Géomatique - 16.02.2012

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