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Australian Spatial Data Directory (ASDD)

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Modified: 2011-06-21
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Quarterly Technical Report

January to March 2011


Introduction

At the end of March 2011, there were 20 repositories within the ASDD with a total of 27,483 dataset descriptions available for searching. However, the Australian Antarctic Data Centre and WALIS ASDD nodes were down at that time.

The Qld Spatial Data (QSIC) closed on 2011-01-28.

Statistics are provided for the ASDD covering:

  • web access statistics,
  • gateway statistics,
  • number of records at each repository,
  • reliability of repository,

for the months of January, February and March 2011.

Repositories which have provided descriptions are also listed.

The ASDD GeoNetwork gateway has been set up for testing. The URL is: http://www.mymaps.gov.au/geonetwork/

The following GeoNetwork ASDD nodes have been added to this interface for testing purposes:

Note: that these nodes are not searchable by the current ASDD technology.

Achievements during past quarter

  • There are less basic and more advanced searches this quarter than last quarter.
  • Overall there are more searches than last quarter.
  • There are less page views and less visitors to the ASDD this quarter than last quarter.
  • Some Z39.50 search errors in may be caused by poor metadata content. Some metadata discrepancies are highlighted in the advanced results report. Node managers are encouraged to review this report regularly.
  • Congratulations to: Australian Hydrographic Service - Product Metadata, Australian Hydrographic Service - Source Metadata, Bureau of Meteorology, Geoscience Australia, PSMA Australia Limited and Queensland Environment and Resource Management for having valid ANZLIC Version 2 metadata.
  • Congratulations to: Australian Hydrographic Service - Product Metadata, Australian Hydrographic Service - Service - Source Metadata, BRS and Australian Natural Resources Data Library (ANRDL), Bureau of Meteorology, Geoscience Australia, NSW Natural Resources Data Directory, Qld Spatial Data (QSIC), Queensland Environment and Resource Management and RAN Directorate of Oceanography and Meteorology for being available 100% of the time during this quarter.
  • The Australian Antarctic Data Centre ASDD node was unavailable for all of this quarter.
  • The WALIS nodes were not available for this quarter.
  • The ASDD gateways were available for all of this quarter.

Web Statistics for ASDD

This quarter's statistics for the ASDD are available for the period 2011-01-01/03-31.

A summary of this quarter's statistics follows:

This Quarter Last Quarter
Spider page views (These values are excluded from the other web statistics.) 52,476 = 23% of all page hits. 68,532 = 26% of all page hits.
Total page views (Access of a page as a whole e.g. html): 172,249 184,327
Total visitors: 8,026 9,362
Starting day: 1st January 2011 2010-10-01
Ending day: 31st March 2011 2010-12-31
Total days covered: 90 92
Average page views per day: 1,914 2,004
Average visitors per day: 89 102

Notes:

  • There are less page views and less visitors this quarter than last quarter.

The following diagrams show the statistical trends since 2002-01.
Total page views per quarter
Average page views per day per quarter
Total visitors per quarter
Average visitors per day per quarter

More statistical details are available for:

Gateway Usage

The following statistics are a summary of the ASDD basic and ASDD advanced gateways:

ASDD Basic Gateway

  • 29587 searches were made through the ASDD basic gateway.
  • 963 single search terms were used.
  • 28624 multiple search terms were used.

The following links provide more details on the monthly basic gateway statistics:

ASDD Advanced Gateway

  • 2376 searches were made through the ASDD advanced gateway.
  • 657 single search terms were used.
  • 1719 multiple search terms were used.

The following links provide more details on the monthly advanced gateway statistics:

Repository Records

The following table lists the repositories, the DTD used, the number of records parsed per repository and the number of XML records that validated some time during April 2011.

Note:

  • The content of the ANZMETA-1.3 metadata records were validated using the RELAXNG schema.
  • These results take a long time to generate and may show different numbers to those of the monthly accesses. This could be due to nodes adding metadata to their repositories, some repositories not properly responding to the Z39.50 queries or not having records available in XML format.
  • 87% of the ASDD records were available in XML format for validation. This is more than last quarter.
  • 83% of XML records that were parsed are valid. This is more than last quarter.
  • 5 repositories have 100% valid ANZLIC Version 2 metadata records, which is the same as last quarter.
  • 15 repositories are using or partially using ANZMETA-1.3.DTD or its extension, which is the same as last quarter.
  • Six ASDD nodes were not available for checking.
  • "Not available" means that the server did not respond appropriately to the query at the time of investigation.

Repository Number of records available Number of records parsed Records that validate ANZMETA DTD Comments
ACT Geographic Data Directory 423 423 418 1.3 Content errors.
Australian Antarctic Data Centre - - Not available Not available Not available
Australian Hydrographic Service - Product Metadata 1143 1143 1143 1.3
Australian Hydrographic Service - Publication Metadata 0 0 0 No records found.
Australian Hydrographic Service - Source Metadata 4985 4985 4985 1.3
BRS and Australian Natural Resources Data Library (ANRDL) 3058 0 0 Not available Can't resolve XML records.
Bureau of Meteorology 1 1 1 1.3
CSIRO Marine and Atmospheric Research 2497 2497 2490 1.3 There are content problems.
Geoscience Australia 726 726 726 1.3
IndexGeo Pty Ltd - Eco Companion catalogue 11 11 5 1.3 and -//IndexGeo//DTD ANZMETA Resource 1.1//EN Invalid attributes and keywords.
Murray-Darling Basin Authority 221 221 94 1.3 No document type declaration.
NSW Natural Resources Data Directory 5181 5181 5055 1.3 extension -//NSW NRIMS//DTD ANZMETA NSW NRIMS Page 1 v1.0//EN and unknown DOCTYPES There are content problems and unknow DOCTYPE.
NT Spatial Data Directory 546 546 0 No DOCTYPE in some XML records. No document type definition.
Other Commonwealth Data (hosted by BRS) 31 0 0 Not available Can't resolve XML records.
PSMA Australia Limited 6 6 6 1.3
Queensland Environment and Resource Management 3391 3391 3391 1.3 and -//QSIIS//DTD QSIIS 1.3//EN
RAN Directorate of Oceanography and Meteorology 1896 1896 0 1.3 There are content problems.
SEWPaC Discover Information Geographically (DIG) 949 949 875 1.3 There are content problems with the unique id, dates and non-UTF-8 characters.
South Australian Spatial Information Directory 745 248 185 1.3 Some metadata records were not identified as bein XML documents. Convert all to ANZMETA-1.3.DTD. Some files are not XML documents. There are content problems.
Tasmanian Spatial Data Directory 485 485 446 1.1 Convert to ANZMETA-1.3.dtd. There are content problems.
Victorian Spatial Data Directory 1190 1190 16 1.3 There are content problems.
WALIS Interragator-Aerial Photography - - Not available Not available Not available
WALIS Interragator-Bibliographic - - Not available Not available Not available
WALIS Interragator-Environmental Impact Statements - - Not available Not available Not available
WALIS Interragator-Natural Resource Monitoring - - Not available Not available Not available
WALIS Interragator-Spatial Data - - Not available Not available Not available
TOTAL 27485 23899 19836 -

Repository Reliability

A summary of repository reliability for the period January to March 2010 is given below:

Repository Up time January % February % March %
ACT Geographic Data Directory 100 99 100
Australian Hydrographic Service - Product Metadata 100 99 100
Australian Hydrographic Service - Service - Publication Metadata 100 100 100
Australian Hydrographic Service - Source Metadata 100 99 100
BRS and Australian Natural Resources Data Library (ANRDL) 99 99 94
Bureau of Meteorology 100 99 100
CSIRO Marine and Atmospheric Research 98 100 99
Geoscience Australia 100 100 100
IndexGeo Pty Ltd - Eco Companion catalogue 100 100 99
Murray-Darling Basin Authority 100 73 100
NSW Natural Resources Data Directory 99 99 100
NT Spatial Data Directory 100 99 100
Other Commonwealth Data (hosted by BRS) 99 99 94
PSMA Australia Limited 100 100 99
Qld Spatial Data (QSIC) 92 - -
Queensland Environment and Resource Management 99 99 100
RAN Directorate of Oceanography and Meteorology 100 98 100
SEWPaC Discover Information Geographically (DIG) 100 100 100
South Australian Spatial Information Directory 100 100 100
Tasmanian Spatial Data Directory 100 99 100
Victorian Spatial Data Directory 99 99 100
Average 99 98 99

Monthly details about the server, port, database, available records query time and repository availability can be found at:

January
February
March

Repository managers are automatically notified by email if a server goes down for a period longer than four hours.

Repository descriptions

ASDD repository descriptions http://asdd.ga.gov.au/asdd/tech/node/

It is the responsibility of each repository manager to utilise the online document management application to describe their repository and update the repository description whenever they choose.

The following ASDD repositories are briefly described and include references to further information ...

  • ACT Geographic Data Directory
  • AuScope Portal Feature Services Catalog
  • Australian Antarctic Data Centre
  • Australian Hydrographic Service - Product Metadata
  • Australian Hydrographic Service - Publication Metadata
  • Australian Hydrographic Service - Source Metadata
  • Australian Institute of Marine Science
  • BRS and Australian Natural Resources Data Library (ANRDL)
  • Bureau of Meteorology
  • CSIRO Marine and Atmospheric Research
  • Geoscience Australia
  • IndexGeo Pty Ltd - Eco Companion catalogue
  • Murray-Darling Basin Authority
  • NSW Natural Resources Data Directory
  • NT Spatial Data Directory
  • Other Commonwealth Agencies (hosted by BRS)
  • PSMA Australia Limited
  • Qld Spatial Data (QSIC)
  • Queensland Environment and Resource Management
  • RAN Directorate of Oceanography and Meteorology
  • SEWPaC Discover Information Geographically (DIG)
  • South Australian Spatial Information Directory
  • Tasmanian Spatial Data Directory
  • Victorian Spatial Data Directory
  • WALIS Interragator-Aerial photography
  • WALIS Interragator-Bibliographic Data
  • WALIS Interragator-Environmental Impact Statements
  • WALIS Interragator-Natural Resource Monitoring
  • WALIS Interragator-Spatial Data