Data Summary
Title: ACORN-SAT Australia v2 ( ongoing ) : Australian Climate Observations Reference Network - Surface Air Temperature (1910 onwards)
Status: onGoing
Start Time: 1910-01-01T00:00:00
End Time: now
Geographical Extent (deg):
West: 112
East: 154.5
South: -45
North: -9
Data Details
Abstract
The Australian Climate Observations Reference Network - Surface Air Temperature (ACORN-SAT) dataset v2 is comprised of a consistent - or homogeneous - daily temperature record since 1910, for up to 112 observation locations across Australia.
This dataset aims to create a modern Australian temperature record, by selecting relevant sites which have a long data timespan, and maximise network coverage across the continent.
The v2 dataset was initially released in December 2018, and supercedes the ACORN-SAT v1 dataset. (see : http://www.bom.gov.au/metadata/19115/ANZCW0503900450 ).
An ACORN-SAT v2 snapshot of 1910 to May 2019 is available (see http://www.bom.gov.au/metadata/19115/ANZCW0503900447).
In this v2 "ongoing" dataset, new data is being added incrementally.
Supplementary Information:
For background on the dataset creation, see the Bureau Research Report - 032 (Published Oct.2018) :
"The Australian Climate Observations Reference Network – Surface Air Temperature (ACORN-SAT) version 2" available from :
[ http://www.bom.gov.au/research/publications/researchreports/BRR-032.pdf ]. See also the Lineage section of this catalogue record.
For the history and details of each "reference" monitoring station, see
[ http://www.bom.gov.au/climate/data/acorn-sat/stations/# ], and choose the relevant station from the map or list.
Purpose:
The Australian Climate Observations Reference Network – Surface Air Temperature (ACORN-SAT) dataset series has been developed to monitor climate variability and change in Australia.
Keywords:
(Type: theme; Thesaurus:
ANZLIC Theme Search Terms)
- CLIMATE-AND-WEATHER-Temperature
Keywords:
(Type: theme; Thesaurus:
GCMD Science Keywords)
- Earth Science | Atmosphere | Atmospheric Temperature | Air Temperature
Keywords:
- DataParam: Temperature, air - maximum - daily - for each day
- DataParam: Temperature, air - minimum - daily - for each day
- DataType: Point data
- DataType: Data graphs
Keywords:
- DataType2: Observation (homogenised)
- QCtype: derived and QC'd
- DataType3: Point timeseries
Keywords:
(Type: place; Thesaurus:
ANZLIC Place Search Terms)
- Australia
Citation Details
Title: ACORN-SAT Australia v2 ( ongoing ) : Australian Climate Observations Reference Network - Surface Air Temperature (1910 onwards)
Alternative Title:
Australian Climate Observations Reference Network – Surface Air Temperature ( ACORN-SAT ) v2 ongoing {DRAFT stopgap metadata} ACORNSAT
Resource Date:
2018-08-31
(creation)
Identifier:
Code: http://www.bom.gov.au/metadata/19115/ANZCW0503900725
Party To Be Cited:
Organisation: Australian Bureau of Meteorology
Role: originator
Point Of Contact For Dataset
Point Of Contact: Climate Monitoring, Australian Bureau of Meteorology
Email:
helpdesk.climate@bom.gov.au
Custodian: Australian Bureau of Meteorology
Owner: Australian Bureau of Meteorology
Data Extent
Extent Description: Australia
Geographical Extent (deg):
West Bound Longitude: 112
East Bound Longitude: 154.5
South Bound Latitude: -45
North Bound Latitude: -9
Extent Description: Australia
Temporal Extent:
Start Time: 1910-01-01T00:00:00
End Time: now
Description: 1910 onwards (but updated approx every 5 months, so typically 6 months behind "now")
Dataset Constraints
Dataset Legal Constraints:
Other Constraints:
The dataset described by this metadata record is available/licenced under the Bureau's Default Terms of Use. The Bureau's Default Terms of Use are indicated at [ http://www.bom.gov.au/other/copyright.shtml ], and should be read.
~~~~~~~~~~~~~~~~~~~~~~~~~~
We request attribution as : Australian Bureau of Meteorology (YYYY), ACORN-SAT Australia v2 ( ongoing ) Australian Climate Observations Reference Network - Surface Air Temperature (1910 onwards), {Point-of-truth metadata url : http://www.bom.gov.au/metadata/19115/ANZCW0503900725 } Downloaded from [url] on [date]
~~~~~~~~~~~~~~~~~~~~~~~~~~
Please refer to [ http://www.bom.gov.au/other/disclaimer.shtml ], for disclaimer details.
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Data Information
Data Distribution Information
DownloadableData : Data via list of Stations. ACORN-SAT v2 (ongoing). Daily temperature per station, for all years (CSV). Choose "Sortable list of ACORN-SAT stations with linked data". [http://www.bom.gov.au/climate/data/acorn-sat/#tabs=Data-and-networks]
(WWW:LINK-1.0-http--link)
, Function: download
DownloadableData : Data via a MAP of stations. ACORN-SAT v2 (ongoing). Daily temperature - per station for all years (CSV) [http://www.bom.gov.au/climate/data/acorn-sat/map/map-acorn-sat.html]
()
, Function: download
Paper : Bureau Research Report - 032, about ACORN-SAT v2 [http://www.bom.gov.au/research/publications/researchreports/BRR-032.pdf]
(WWW:LINK-1.0-http--link)
, Function: information
Point of truth URL of the Bureau's authoritative version of this metadata record [http://www.bom.gov.au/metadata/19115/ANZCW0503900447]
(www link)
, Function: information
Data Quality
Scope:
Level: dataset
Lineage:
Statement: For background on dataset creation methods, please refer to the Bureau Research Report - 032 "The Australian Climate Observations Reference Network – Surface Air Temperature (ACORN-SAT) version 2" available from : [ http://www.bom.gov.au/research/publications/researchreports/BRR-032.pdf ].
See also: the "Methods" tab, at [ http://www.bom.gov.au/climate/data/acorn-sat/ ].
Python computer source code implementing the inhomogeneity detection algorithm and the percentile-matching algorithm is available by request to: helpdesk.climate@bom.gov.au
~~~~~~~~~~~~~~~~~~~~~~~
The difference between the ACORN-SAT v2 "Snapshot v2.1.0.1", and the v2 "ongoing" datasets :
---------------------------
In the v2 "ongoing" dataset, the most recently QC'd data values, for 2017 onwards (directly sourced from the Bureau's ADAM database) is included.
A snapshot of the "ongoing" dataset was created in 2019-07 (Snapshot v2.1.0.1 : covering data to 2019-05).
Where pre 2019-05 data in ADAM is corrected after 2019-0703, those value changes will not be included in the Snapshot v2.1.0.1, but will be included in this v2 "ongoing" dataset (and in subsequent snapshots). And data for 2019-06 onwards will be incrementally added to the "ongoing" dataset.
Reference System
Code: GDA 94
Code Space: Geocentric Datum of Australia
Identifier Authority:
Identifier Authority Title: EPSG Geodetic Parameter Dataset
Identifier Authority Date:
2007-08-16
(revision)
Spatial Representation
Geometric Objects:
Object Type: point
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Metadata Information
Metadata Identifier: ANZCW0503900725
Hierarchy Level: dataset