[Parameters: Topic='OCEANS', Term='OCEAN OPTICS', Variable_Level_1='ATTENUATION/TRANSMISSION']
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UV radiation penetration into the marine ecosystem of McMurdo Sound Entry ID: K068_2002_2006_NZ_1 |
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Summary
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Abstract:
UV radiation transmission measurements on sea ice surface and through the annual sea ice into the underlying water column were made during Antarctic spring months (October - November) in conjunction with the spring-time ozone hole, over several seasons (2002-2006) to characterise the underwater light field of McMurdo Sound. Measuring ambient UV-R, the penetration of UV-R through the annual ice and water column and inherent optical properties of the water column will allow modelling of the UV-R environment of the inner McMurdo Sound and to increase our knowledge of the effects, if any, of increased UV-R on shallow water communities or their larval stages. Spectroradiometers (LiCor Li-1800UW) were deployed simultaneously to measure UV-B (300-320 nm), UV-A (320-400 nm) and PAR - Photosynthetically Active Radiation (400-750 nm). The spectroradiometers measured irradiance as downwelling, reflected (from which sea ice albedo could be calculated), sub-sea ice and through the underlying water column. During spectroradiometer deployments, the Inherent Optical Properties of the water column (backscatter coefficient, diffuse attenuation, absorption and fluorescence) were measured using optical instrumentations. Sample sites include Cape Armitage, Pram Point, Cinder Cone, Cape Evans and the sea ice edge.
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Related URL
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Link:
VIEW RELATED INFORMATION
Link: VIEW RELATED INFORMATION |
Geographic Coverage
| N: -77.0622 | S: -77.8608 | E: 166.7595 | W: 164.4194 |
| Min Altitude: 0M | Max Altitude: 0M | Min Depth: 0M | Max Depth: 15M |
Temporal Coverage
| Start Date: 2002-10-09 |
| Stop Date: 2005-11-14 |
Location Keywords
Science Keywords
| ATMOSPHERE >ATMOSPHERIC RADIATION >ULTRAVIOLET RADIATION [Definition] |
| CRYOSPHERE >SEA ICE >ICE DEPTH/THICKNESS [Definition] |
| CRYOSPHERE >SEA ICE >REFLECTANCE [Definition] |
| OCEANS >OCEAN OPTICS >ATTENUATION/TRANSMISSION [Definition] |
| OCEANS >OCEAN OPTICS >IRRADIANCE [Definition] |
| OCEANS >OCEAN OPTICS >PHOTOSYNTHETICALLY ACTIVE RADIATION [Definition] |
ISO Topic Category
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BIOTA
OCEANS |
Instrument
| PAR SENSORS >Photosynthetically Active Radiation Sensors |
| SPECTRORADIOMETERS [Information] |
Quality
| The data is contained in the publications. Any collected samples get destroyed in their analysis. Field notebooks are held by the investigator, please contact for more information. |
Data Set Progress
| IN WORK |
Data Center
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Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand
[Information]
Data Center URL: http://www.antarcticanz.govt.nz/
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Personnel
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MILES
LAMARE Role: INVESTIGATOR Phone: +64 3 479 7463 Fax: +64 3 479 8336 Email: miles.lamare at stonebow.otago.ac.nz Contact Address: Department of Marine Science University of Otago PO Box 56 City: Dunedin Country: New Zealand |
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SHULAMIT
GORDON Role: DIF AUTHOR Phone: +64 3 358 0200 Fax: +64 3 358 0211 Email: s.gordon at antarcticanz.govt.nz Contact Address: Antarctica New Zealand Private Bag 4745 City: Christchurch Country: New Zealand |
Publications/References
Lister, N.K., Lamare, M.D. and Burritt, D.J. 2010. Sea ice protects the embryos of the Antarctic sea urchin Sterechinus neumayeri from oxidative damage due to naturally enhanced levels of UV-B radiation. The Journal of Experimental Biology 213: 1967-1975.
Lesser MP, Lamare MD, Barker MF (2004) Transmission of ultraviolet radiation through the Antarctic annual sea ice and its biological effects on sea urchin embryos. Limnol Oceanogr 49:19571963
Lamare MD, Barker MF, Lesser MP, Marshall CJ (2006). DNA photorepair in echinoid embryos: effects of temperature on repair rate in Antarctic and non-Antarctic species. J. Exp. Biol. 209: 5017-5028
Lamare MD, Barker MF, Lesser MP (2007) In situ rates of DNA damage and abnormal development in Antarctic and non-Antarctic sea urchin embryos. Aquat. Biol. 1: 21-32
Lesser MP, Barry TM, Lamare MD, Barker MF (2006) Biological weighting functions for DNA damage in sea urchin embryos exposed to ultraviolet radiation. J. Exp. Mar. Biol. Ecol. 328: 10-21
Lesser MP, Lamare MD, Barker MF (2004) Transmission of ultraviolet radiation through the Antarctic annual sea ice and its biological effects on sea urchin embryos. Limnol Oceanogr 49:19571963
Lamare MD, Barker MF, Lesser MP, Marshall CJ (2006). DNA photorepair in echinoid embryos: effects of temperature on repair rate in Antarctic and non-Antarctic species. J. Exp. Biol. 209: 5017-5028
Lamare MD, Barker MF, Lesser MP (2007) In situ rates of DNA damage and abnormal development in Antarctic and non-Antarctic sea urchin embryos. Aquat. Biol. 1: 21-32
Lesser MP, Barry TM, Lamare MD, Barker MF (2006) Biological weighting functions for DNA damage in sea urchin embryos exposed to ultraviolet radiation. J. Exp. Mar. Biol. Ecol. 328: 10-21
Creation and Review Dates
DIF Creation Date:
2005-11-01
Last DIF Revision Date:
2010-08-30
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