Dataset

Water Properties of Ashmore Reef, North-west Shelf, Australia

Geoscience Australia
Glenn, K.C. ( Contributor )
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://pid.geoscience.gov.au/dataset/ga/37509&rft.title=Water Properties of Ashmore Reef, North-west Shelf, Australia&rft.identifier=http://pid.geoscience.gov.au/dataset/ga/37509&rft.publisher=Commonwealth of Australia (Geoscience Australia)&rft.description=Ashmore Reef is a tropical marine reserve positioned at the confluence of Indian Ocean waters and the Indonesian Through Flow, has three vegetated cays all with fresh water lenses and two lagoons, separated by a calcareous algal rise. Both lagoons have two entrances on the northern side of the reef. The reef is subject to a 4.75 m semi-diurnal tide and on a spring tide ~7.5 km3 of water washes over the reef. The regional, lagoonal and well water qualities in and around Ashmore Reef have been observed from 1991 with a more intensive program since 1999 to ascertain it's chemistry and possible relationships with biodiversity. Sea surface temperatures of the surrounding oceanic water seasonally range from 25.48°C to 30.2°C and salinity from 34.51 to 34.75. Satellite derived lagoonal temperatures range from 25.4°C - 34.5 °C with an average of 29.4 °C, salinity ranges from 39.6 to 31.2. The fresh water lens on West Island has up to 150 000 ltr/yr pumped from the well. Well water temperature varies between 28°C and 29°C, and salinity has ranged from 0.03 to 3.94 with a pH of 7.64 dissolved oxygen percentage ranged from 27% to 51 %. This reef is within the tropical monsoonal belt, with thunderstorms occurring on ~85 days/yr and where evaporation potential is ~1820 mm, almost twice that of annual rainfall of ~950 mm. This article can be found in The Beagle, pp. 9-12. The Beagle is a print only journal.Unknown&rft.creator=Glenn, K.C. &rft.date=2001&rft.coverage=northlimit=-11.5; southlimit=-13.0; westlimit=122.0; eastLimit=124.0; projection=GDA94&rft.coverage=northlimit=-11.5; southlimit=-13.0; westlimit=122.0; eastLimit=124.0; projection=GDA94&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/by/4.0&rft_subject=Geoscientific Information &rft_subject=External Publication&rft_subject=Hydrogeology&rft_subject=Marine&rft_subject=Earth Sciences&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data

Licence & Rights:

Open Licence view details
CC-BY

Creative Commons Attribution 4.0 International Licence
http://creativecommons.org/licenses/by/4.0

Access:

Open

Brief description

Ashmore Reef is a tropical marine reserve positioned at the confluence of Indian Ocean waters and the Indonesian Through Flow, has three vegetated cays all with fresh water lenses and two lagoons, separated by a calcareous algal rise. Both lagoons have two entrances on the northern side of the reef. The reef is subject to a 4.75 m semi-diurnal tide and on a spring tide ~7.5 km3 of water washes over the reef. The regional, lagoonal and well water qualities in and around Ashmore Reef have been observed from 1991 with a more intensive program since 1999 to ascertain it's chemistry and possible relationships with biodiversity. Sea surface temperatures of the surrounding oceanic water seasonally range from 25.48°C to 30.2°C and salinity from 34.51 to 34.75. Satellite derived lagoonal temperatures range from 25.4°C - 34.5 °C with an average of 29.4 °C, salinity ranges from 39.6 to 31.2.

The fresh water lens on West Island has up to 150 000 ltr/yr pumped from the well. Well water temperature varies between 28°C and 29°C, and salinity has ranged from 0.03 to 3.94 with a pH of 7.64 dissolved oxygen percentage ranged from 27% to 51 %.

This reef is within the tropical monsoonal belt, with thunderstorms occurring on ~85 days/yr and where evaporation potential is ~1820 mm, almost twice that of annual rainfall of ~950 mm.

This article can be found in The Beagle, pp. 9-12. The Beagle is a print only journal.

Lineage

Unknown

Issued: 2001

Click to explore relationships graph

124,-11.5 124,-13 122,-13 122,-11.5 124,-11.5

123,-12.25

text: northlimit=-11.5; southlimit=-13.0; westlimit=122.0; eastLimit=124.0; projection=GDA94

Subjects

User Contributed Tags    

Login to tag this record with meaningful keywords to make it easier to discover

Identifiers