Global Change Master Directory (GCMD)

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Ancillary Descriptions

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Geography Network Canada

Entry ID: Canada_ESRI_GeographyNetwork

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Summary

Abstract: The Geography Network Canada is an online resource for finding and sharing
Canadian geographic content, including maps and data from many of our country's
leading providers.To provide the CGDI's users access to the data stored on the
Geography Network Canada metadata server.
Spatial Data Organization Information -

Indirect Spatial Reference:
Direct Spatial Reference:
Raster Object ...

Related URL

Link: View Related Information

Description: GeoConnections Discovery Portal. Canada's IDN Node.

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: 84.0

S: 41.5

E: -43.0

W: -141.0

Data Set Citation

Dataset Originator/Creator: ESRI Canada

Dataset Title: Geography Network Canada

Dataset Release Date: 20010101

Dataset Release Place: Toronto, Ontario, Canada

Dataset Publisher: ESRI Canada

Online Resource: http://www.geographynetwork.ca

Temporal Coverage

Start Date: 2002-01-01

Location Keywords

CONTINENT > NORTH AMERICA > CANADA

CONTINENT > NORTH AMERICA > CANADA > ALBERTA

Science Keywords

ATMOSPHERE > ATMOSPHERIC TEMPERATURE > AIR TEMPERATURE

ATMOSPHERE > ATMOSPHERIC RADIATION > ULTRAVIOLET RADIATION

ATMOSPHERE > ATMOSPHERIC CHEMISTRY > OXYGEN COMPOUNDS > OZONE

ISO Topic Category

BIOTA

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Platform

FIXED OBSERVATION STATIONS

Instrument

AAS > Atomic Absorption Spectrophotometry

Quality The amount of solar ultraviolet radiation (UVR) reaching the ground is controlled by physical factors including the height of the sun in the sky, time of day, cloud cover, ozone concentrations overhead and reflectance at the surface by ice and snow (albedo). In Antarctica, the combination of these factors leads to erythemal irradiances higher than those experienced in the tropics.

The ... energy of solar radiation, and thus its capacity to damage life in Antarctica, increases with decreasing wavelength. Ozone depletion specifically enhances the shorter wavelengths of the UV spectrum (UVB 280 to 320 nm). Measurements of solar UVR in the past have generally been of either UVR (280 to 400 nm) or more importantly, UVB (280 to 315 nm); these lower wavelengths are very effective in producing damaging biological effects. More recently, in order to relate UV flux measurements to human health, biologically effective UVR is measured using a radiometer that approximates the response of human skin to different wavelengths of UVR. This erythemal spectral effectiveness was defined by the Commission Internationale d E'clairage (International Lighting Commission - CIE) in 1987. The units are minimal erythemal doses (MED) where 1 MED is the amount of UVR required to induce erythema or sunburn in people with sensitive skin.

Ten-minute readings are added together to provide an indication of the total UVR incident at the surface each day. Daily readings of biologically effective solar UVR is in standard erythemal doses (SEDs : 1 SED is 100 J/m2 effective).

For quality-controlled data, the trends in UV can be analysed and compared with those in ozone. The interannual variability due to variations in ozone, cloudiness and other atmospheric parameters needs to be accounted for.

These data (Mawson in particular) could be subject to change upon revision of the calibrations at a future date. Unfortunately there is a large gap in the data from Davis.

2010-10-12
There are currently some data gaps for Mawson and Macquarie Island. The Macquarie Island instrument failed in November 2007 and Mawson failed in December 2007. The replacement equipment was installed in late April 2008. Due to ARPANSA IT issues connection to the instruments took some time.

Note that the most recent excel spreadsheet stored in the download file will be the most accurate, and should be used in preference to all other excel spreadsheets, or .dat data.

Access Constraints These data can be viewed at the URL given below for 'Display Antarctic State of Environment Indicator 10', or alternatively, downloaded as a file from the provided URL. The download file contains a number of zipped .dat files and two excel spreadsheets, one for data as it stood in mid-2007, and one for data as it stood in mid-2008.

Use Constraints This data set conforms to the PICCCBY Attribution License
(http://creativecommons.org/licenses/by/3.0/).

Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ARPANSA_BIO when using these data.

Ancillary Keywords

BIOLOGICALLY WEIGHTED

BIOMETER

Data Set Progress

IN WORK

Originating Center

Australian Radiation Protection and Nuclear Safety Authority

Data Center

Australian Antarctic Data Centre, Australia

Data Center URL: http://data.aad.gov.au

Data Center Personnel
Name: DATA OFFICER AADC Phone: +61 3 6232 3244 Fax: +61 3 6232 3351 Email: metadata at aad.gov.au Contact Address: Australian Antarctic Division 203 Channel Highway City: Kingston Province or State: Tasmania Postal Code: 7050 Country: Australia

Distribution

Distribution Media: HTTP

Distribution Size: 3,626 kb

Distribution Format: Excel, .dat

Fees: free

Personnel

COLIN ROY

Role: INVESTIGATOR

Phone: +61 3 9433 2286

Fax: +61 3 9432 1835

Email: COLIN.ROY at arpansa.gov.au

Contact Address:

AUSTRALIAN RADIATION LABS

LOWER PLENTY ROAD

City: YALLAMBIE

Province or State: VIC

Postal Code: 3085

Country: Australia

PETER GIES

Role: TECHNICAL CONTACT

Role: DIF AUTHOR

Role: INVESTIGATOR

Phone: +61 3 9433 2285

Fax: +61 3 9432 1835

Email: peter.gies at arpansa.gov.au

Contact Address:

Australian Radiation Protection and Nuclear Safety Agency

Non Ionizing Radiation Branch

Ultraviolet Radiation Section

Lower Plenty Road Yallambie 3085

City: Yallambie

Province or State: Victoria

Postal Code: 3085

Country: Australia

STUART HENDERSON

Role: TECHNICAL CONTACT

Phone: +61 3 9433 2391

Fax: +61 3 9432 1835

Email: stuart.henderson at arpansa.gov.au

Contact Address:

Australian Radiation Protection and Nuclear Safety Agency

Non Ionizing Radiation Branch

Ultraviolet Radiation Section

Lower Plenty Road Yallambie 3085

City: Yallambie

Province or State: Victoria

Postal Code: 3085

Country: Australia

Publications/References

Britt A.B. (1999), Trends in Plant Science, 4, 20-25

Extended Metadata Properties

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Creation and Review Dates

DIF Creation Date: 2001-04-19

Last DIF Revision Date: 2012-11-15

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