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Gridded Average Heating & Cooling Degree Days Metadata


Download PDF version of average degree-day metadata (22 KB)

Dataset

Title

Average monthly and average annual heating and cooling degree days  data (base climatological datasets)

Custodian

Custodian

Bureau of Meteorology

Jurisdiction

Australia

Description

Abstract

Average monthly and annual heating and cooling degree days grids.
The grids show the heating and cooling degree day values across Australia in the form of two-dimensional array data.
The data is based on the standard 30-year period 1961-1990.
See LINEAGE below for more information.

Search Word(s)

Gridded, spline, analyses, climatology, heating, cooling, meteorology

Geographic Extent Names(s)

Australia

General Category

Gridded climatological data

General Custodian Jurisdiction

Australian Government
Australia

Geographic Extent Polygon

Not applicable

Geographic Bounding Box

See below

North Bounding Latitude

-8.950

South Bounding Latitude

-45.050

East Bounding Longitude

160.050

West Bounding Longitude

109.950

Data Currency

Beginning Date

1961

Ending Date

1990

Dataset Status

Progress

Completed

Maintenance and

Update frequency

Ongoing

Access

Stored Data Format

Arc/Info grids - all Australia 

Available Format Type

ASCII grid-point, Arc/Info grid Interchange (.e00), Shapefiles. 

Access Constraint

Please note that the copyright for any data supplied by the Bureau of Meteorology is held in the Commonwealth of Australia and the purchaser shall give acknowledgement of the source in reference to the data. Apart from dealings under the Copyright Act 1968, the purchaser shall not reproduce (electronically or otherwise), modify or supply (by sale or otherwise) these data without written permission from the supplier.  Please contact us (see details below) for more information.

Data Quality

Lineage

The Heating Degree Days (HDD) and Cooling Degree Days (CDD) were based on daily temperature observations with each month having at least 25 records and no less than 15 years of data between 1961-1990

HDD and CDD are based on:

·       the average daily temperature ((maximum daily temperature + minimum daily temperature) / 2).

·       the difference between the average temperature and the BASE temperature. The BASE values used in this case are 12°C or 18°C for heating and 18°C or 24°C for cooling.

The gridded data were generated using the ANU (Australian National University) 2-D Spline (surface fitting algorithm). The grid point resolution of the data is 0.1 degrees (approximately 10km).

Approximately 350 stations were used in the analysis.  All input station data underwent standard quality control before analysis. 

Positional Accuracy

The observational (station) data on which the analyses were based have an associated accuracy of the order of 0.01 degrees (approximately 1km) or better.

Attribute Accuracy

Grid point data are post processed.
For more information please contact us.

Logical Consistency

Not applicable

Completeness

No missing data

Contact Information

Contact Organisation

Bureau of Meteorology

 

Contact Position

NCC Information officer

Mail Address

PO BOX 1289, Melbourne 3001, Australia

Locality

 

State

Victoria

Country

Australia

Postcode

3001

Telephone

(03) 9669 4082

Facsimile

(03) 9669 4515

Electronic Mail

webclim@bom.gov.au

Metadata date

Metadata date

2004

Additional Metadata

Additional information available on request (see contact above).

Last Modified September 2007

 

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