ASDD quarterly report - January to March 2000

Environmental Resources Information Network

Australian Spatial Data Directory (ASDD)

Quarterly Technical Report

April to June 2000

Introduction

At the end of June 2000, there were 20 nodes within the ASDD with a total of 38,628 dataset descriptions available for searching. Statistics are provided for the ASDD covering number, compliance and reliability of nodes, number of hits and records per node for the months of January, February and March 2000.

Achievements during past quarter

The new Metastar gateway software, version 3.5, was installed. There were initial difficulties with connecting reliably to all the nodes. However, this problem has now been fixed and access to all nodes is available.

The spatial interface was incorported in the ASDD Advanced search facility.

The following table lists the nodes and the number of records per node that were accessible at 31 June 2000.

Monthly details about the server, port, database, available records query time and node availablity can be found at:
April
May
June

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Usage

The total number of hits recorded for the ASDD pages on the Environment Australia web site for the months April to June 2000 was 14,997 compared to 18,895 for the previous quarter.

The drop in the total number of hits could be due to the denial of access by web robots to these web pages.

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Usage for the months of April, May and June 2000 was 5190, 4982 and 4825 hits respectively. A breakdown of users by top-level domain for each month is shown below:

April 2000
Australia	2,232	43.0%
Unresolved	1,249	24.1%
US Commercial	536	10.3%
Network	587	11.3%
Local Domain	118	2.3%
All Others	468	9.0%
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Node reliability

A summary of node reliability for the period April to June is given below:

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

Node descriptions

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

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

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

• Airesearch Mapping Aerial Photo Catalogue
• AUSLIG Data Directory
• Australian Antarctic Data Centre
• Australian Hydrographic Office - Product Metadata
• Australian Oceanographic Data Centre
• BRS - Incorporating Other Commonwealth Data
• EA Environmental Data Directory (Green Pages)
• IndexGeo Pty Ltd - Eco Companion catalogue
• Murray-Darling Basin Commission Documents
• NT Spatial Data Directory
• Queensland (QSID) Aerial Photography
• Queensland (QSID) Spatial Data
• South Australia Spatial Information Directory
• Victorian Spatial Data Directory
• WALIS Interragator-Aerial photography
• WALIS Interragator-Environmental Impact Statements
• WALIS Interragator-Bibliographic Data
• WALIS Interragator-Spatial Data