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QUALITY DECLARATION - SUMMARY

INSTITUTIONAL ENVIRONMENT

For information on the institutional environment of the Australian Bureau of Statistics (ABS), including the legislative obligations of the ABS, financing and governance arrangements, and mechanisms for scrutiny of ABS operations, please see ABS Institutional Environment.

RELEVANCE

This product presents the gross value of agricultural commodities that are produced with the assistance of irrigation, The publication presents data on a national, state and territory basis. Sub-state level data, including Natural Resource Management (NRM) region and the Murray-Darling Basin (MDB) region, will be released in data cubes attached to the publication.

Gross Value of Irrigated Agricultural Production (GVIAP) estimates have been a core component of the ABS Water Account, Australia (cat. no. 4610.0) which is produced annually.

TIMELINESS

2014-15 GVIAP estimates will be published within 15 months of the of the reference period and approximately 6 months after the release of the main value of agricultural production data in Value of Agricultural Commodities Produced, Australia (cat. no. 7503.0).

ACCURACY

The accuracy of price data is ensured by the collection of price data from the best known sources. Where a statutory authority handles marketing of the whole or a portion of a product, data are usually obtained from this source. Information is also obtained from marketing reports, wholesalers, brokers, dealers and auctioneers. Production data are obtained from a ranger of high-quality sources, including ABS agricultural commodity collections and industry bodies. Extensive editing of production and prices data and checking of resultant value estimates against earlier years and other relevant sources are used to ensure the accuracy of the estimates produced.

COHERENCE

GVIAP is calculated for each irrigated 'commodity group' produced by agricultural businesses. That is, GVIAP is generally not calculated for individual commodities, but rather for groups of 'like' commodities according to irrigated commodity grouping on the ABS Agricultural Census or Rural Environment and Agricultural Commodities Survey forms. The irrigated commodity groups vary slightly on the survey form from year-to-year. See the Explanatory Notes for further information about the commodity groups for this release.

INTERPRETABILITY

This product provides a broad range of up-to-date data about the value of irrigated agricultural commodities produced in Australia. Detailed explanatory notes are provided in this publication to assist users in determining and specifying their data requirements and to understand the concepts underlying the data.

The annual agricultural collections and five-yearly agricultural censuses provide a broad range of data about Australian agricultural commodities through a suite of standard products or as data customised for individual requirements. Estimates from these surveys are published on the ABS website. Detailed explanatory notes about these estimates are available in the following publications:

• Agricultural Commodities, Australia (cat. no. 7121.0)
• Water Use on Australian Farms (cat. no. 4618.0)
• Value of Agricultural Commodities Produced, Australia (cat. no. 7503.0)
• Land Management and Farming in Australia (cat. no. 4627.0)