Dr Tony Worby
Tony is a Senior Research Scientist at the Australian Antarctic Division and leader of the Australian sea ice research program. His primary interest is the physical properties of Antarctic sea ice, in particular the thickness distribution of the ice and its interaction with the atmosphere and ocean.
Tony has a BSc (Hons) in Oceanography and Meteorology, and a PhD from the University of Tasmania. He has participated in 16 research voyages to the Antarctic since 1991 and published more than 45 scientific papers relating to Antarctic sea ice. In 2000 Tony was a Fulbright scholar to the USA where he spent 12 months working at NASA Goddard Space Flight Centre. He is actively involved in numerous international committees, including as co-Chair of the World Climate Research Program's 'Climate and Cryosphere' (CliC) project and co-Chair of the SCAR Committee on 'Antarctic Sea Ice Processes and Climate' (ASPeCt)
Tony has a passion for Antarctica and for sea ice. He was Chief Scientist on the IPY SIPEX expedition in 2007, which focused on the development of new technology for regional mapping of ice and snow thickness and validating satellite sensors, including radar and laser altimetry. Understanding the thickness of sea ice, and how it might be changing, is a key challenge for climate scientists, and one that Tony is focused on.
Publications
Peer reviewed papers
Ackley, S., Wadhams, P., Comiso, J.C., Worby, A.P. (2003) Decadal decrease of Antarctic sea ice extent inferred from whaling records revisited on the basis of historical and modern sea ice records. Polar Research 22(1). 19-25; [Ref: 11518]; AAS Project 189
Allison, I., Worby, A.P. (1994) Seasonal changes of sea-ice characteristics off East Antarctica. Annals of Glaciology 20. 195-201; [Ref: 3083]; AAS Project 189
Brandt, R.E., Warren, S.G., Worby, A.P., Grenfell, T.C. (2005) Surface albedo of the Antarctic sea ice zone. Journal of Climate 18(17). 3606-3622; [Ref: 12170]; AAS Project 2669
Fripiat, F., Cardinal, D., Tison, J-L., Worby, A.P., Andre, L. (2007) Diatom-induced silicon isotopic fractionation in Antarctic sea ice Journal of Geophysical Research 112. G02001, doi:10.1029/2006JG000244,; [Ref: 12872]; AAS Project 2298
Jeffries, M.O., Worby, A.P., Morris, K., Weeks, W.F. (1997) Seasonal variations in the properties and structural composition of sea ice and snow cover in the Bellingshausen and Amundsen Seas, Antarctica. Journal of Glaciology 43 (143). 138-151; [Ref: 7504]; AAS Project 189
Lytle, V.I., Worby, A.P., Massom, R.A. (1998) Sea-Ice Pressure Ridges in East Antarctica. Annals of Glaciology No.27. 449-454; [Ref: 8505]; AAS Project 189
Lytle, V.I., Worby, A.P., Massom, R., Paget, M.J., Allison, I., Wu, X., Roberts, A. (2001) Ice formation in the Mertz Glacier polynya, East Antarctica during winter. Annals of Glaciology 33. 368-372; [Ref: 10311]; AAS Projects 189, 742
Lytle, V.I., Massom, R.A., Bindoff, N., Worby, A.P., Allison, I. (2000) The wintertime heat flux to the underside of east Antarctic pack ice. Journal of Geophysical Research 105(C12). 28759-28769; [Ref: 9881]; AAS Project 189
Massom, R.A., Lytle, V.I., Worby, A.P., Allison, I. (1998) Winter snow cover variability on east Antarctic sea ice. Journal of Geophysical Research 103(C11). 24,837-24,855; [Ref: 8502]; AAS Project 189
Massom, R.A., Hill, K.L., Lytle, V.I., Worby, A.P., Paget, M.J., Allison, I. (2001) Effects of regional fast-ice and iceberg distributions on the behaviour of the Mertz Glacier polynya, East Antarctica. Annals of Glaciology 33. 391-398; [Ref: 10315]; AAS Project 189
Massom, R.A., Comiso, J.C., Worby, A.P., Lytle, V.I., Stock, L. (1999) Regional classes of sea ice cover in the East Antarctic pack observed from satellite and in situ data during a winter time period. Remote Sensing of the Environment No. 68(1). 61-76; [Ref: 8782]; AAS Project 189
Massom R. A., Eicken, H., Haas, C., Jeffries, M.O., Drinkwater, M., Sturm, M., Worby, A.P., Wu, X., Lytle, V.I., Ushio, S., Morris, K., Reid, P.A., Warren, S.G., Allison, I. (2001) Snow on Antarctic sea ice. Reviews of Geophysics, 39(3), 413-445.
Massom, R.A., Worby, A.P., Lytle, V., Markus, T., Allison, I., Scambos, T., Enomoto, H., Tateyama, K., Haran, T., Comiso, J.C., Pfaffling, A., Tamura, T., Muto, A., Kanagaratnam, P., Giles, B., Young, N., Hyland, G., Key, E. (2006) ARISE (Antarctic Remote Ice Sensing Experiment) in the East 2003: validation of satellite-derived sea-ice data products Annals of Glaciology 44. 288-296; [Ref: 12845]
Meyers, G., Bailey, R.J., Worby, A.P. (1995) Geostrophic transport of the Indonesian throughflow. Deep-Sea Research II 42, 1163-1174.
Nicol, S., Worby, A.P., Strutton, P.G., Trull, T.W. (2006) Oceanographic influences on Antarctic ecosystems: observations and insights from East Antarctica (0š-150šE). In: Robinson, A.R., Brink, K.H. (ed.) The Sea. The Global Coastal Ocean Interdisciplinary Regional Studies and Syntheses 14(B). 1493-1534; [Ref: 12766]; AAS Project 2337
Paget, M.J., Worby, A.P., Micheal, K.J. (2001) Determining the floe-size distribution of East Antarctic sea ice from digital aerial photography. Annals of Glaciology 33. 94-100; [Ref: 10320]; AAS Project 189
Reid, J.E., Kimber, B.A., Worby, A.P. (2003) Calibration of a Low Induction Number Electromagnetic Instrument for Sea Ice Thickness Measurements. Journal of Environmental and Engineering Geophysics 9(1). 43-50; [Ref: 11520]; AAS Projects 1212, 1342
Reid, J.E., Vrbancich, J., Worby, A.P. (2003) A comparison of shipborne and airborne electromagnetic methods for Antarctic sea ice thickness measurements. Exploration Geophysics 34. 46-50; [Ref: 11521]; AAS Projects 1212, 1342
Reid, J.E., Worby, A.P., Vrbancich, J., Munro, A.I.S. (2003) Ship-borne electromagnetic measurements of Antarctic sea ice thickness. Geophysics 68. 1537-1546; [Ref: 10956]; AAS Projects 1212, 1342
Reid, J.E., Pfaffling, A., Worby, A.P., Bishop, J.R. (2006) In situ measurements of the direct-current conductivity of Antarctic sea ice: implications for airborne electromagnetic sounding of sea-ice thickness Annals of Glaciology 44. 217-223; [Ref: 12847]; AAS Project 2298
Timmermann, R., Worby, A.P., Goosse, H., Fichefet, T. (2004) Utilizing the ASPeCt sea ice thickness data set to evaluate a global coupled sea ice–ocean model. Journal of Geophysical Research 109. C07017, doi:10.1029/2003JC002242; [Ref: 12649]; AAS Project 2669
Wendler, G., Worby, A.P. (2001) The surface energy budget in the Antarcti summer sea-ice pack. Annals of Glaciology 33. 275-279; [Ref: 10321]; AAS Project 189
Worby, A.P., Griffin, P., Lytle, V.I., Massom, R. (1999) On the use of electromagnetic induction sounding to determine winter and spring sea ice thickness in the Antarctic. Cold Regions Science and Technology 29. 49-58; [Ref: 8807]; AAS Projects 189, 741
Worby, A.P. (2006) Pack ice and fast ice In: Riffenburgh, B. (ed.) Encyclopedia of the Antarctic 2. 701-706; [Ref: 12758]
Worby, A.P., Comiso, J.C. (2004) Studies of the Antarctic sea ice edge and ice extent from satellite and ship observations. Remote Sensing of Environment 92. 98-111; [Ref: 11519]; AAS Project 189
Worby, A.P., Wu, X. (1998) East Antarctic sea ice: observations and modelling. Annals of Glaciology (27). 427-432; [Ref: 8784]; AAS Project 189
Worby, A.P., Jeffries, M.O., Weeks, W.F., Morris, K., Jana, R. (1996) The thickness distribution of sea ice and snow cover during late winter in the Bellingshausen and Amundsen Seas, Antarctica. Journal of Geophysical Research 101(C12). 28441-55; [Ref: 7376]; AAS Project 189
Worby, A.P., Allison, I. (1991) Ocean-atmosphere energy exchange over thin Antarctic pack-ice of variable concentration. Annals of Glaciology (15). 184-190; [Ref: 4137]; AAS Project 189
Worby, A.P., Massom, R.A., Allison, I., Lytle, V.I., Heil, P. (1998) East Antarctic sea ice: a review of its structure, properties and drift M. O. Jeffries, (ed.) Antarctic Sea Ice Physical Processes, Interactions and Variability, Antarctic Research Series. 74. 41-67; [Ref: 8515]; AAS Projects 189, 742
Worby, A.P., Griffin, P.W., Lytle, V.I., Massom, R.A. (1999) On the use of electromagnetic induction sounding to determine winter and spring sea ice thickness in the Antarctic. Cold Regions Science and Technology (29). 49-58; [Ref: 8809]; AAS Projects 189, 741
Worby, A.P., Ackley, S.F (2000) Antarctic research yields circumpolar sea ice thickness data. Eos, Transactions of the American Geophysical Union 81(17). 181, 184-185; [Ref: 9887]; AAS Project 189
Worby, A.P., Bush, G.M., Allison, I. (2001) Seasonal development of the sea-ice thickness distribution in East Antarctica: measurments from upward-looking sonar. Annals of Glaciology 33. 177-180; [Ref: 10317]; AAS Project 741
Worby, A.P., Bindoff, N.L., Lytle, V.I., Allison, I., Massom, R.A. (1996) Winter ocean/sea interactions in the East Antarctic pack ice. EOS Transactions, American Geophysical Union 77(46). 453, 456-7; [Ref: 7244]; AAS Projects 189, 742, 1058, 2223
Worby, A.P., Massom, R.A., Allison, I., Lytle, V.I., Heil, P. (1998) East Antarctic Sea Ice: A Review of its Structure, Properties and Drift. M. Jeffries, (ed.) Antarctic sea ice properties, processes and variability, AGU Antarctic Research Series. (74). 41-67; [Ref: 8813]; AAS Projects 189, 742
Wu, X., Budd, W.F., Worby, A.P., Allison, I. (2001) Sensitivity of the Antarctic sea-ice distribution to oceanic heat flux in a coupled atmosphere-sea-ice model. Annals of Glaciology 33. 577-584; [Ref: 10318]; AAS Project 189
Zemmelink, H.J., Houghton, L., Dacey, J.W.H., Worby, A.P., Liss, P.S. (2005) Emission of dimethylsulfide from Weddell Sea leads. Geophysical Research Letters 32, L23610. dio:101029/2005GL024242; [Ref: 12242]; AAS Project 2559
Peer-review publications currently in press
Giles, K., Laxon, S., Worby, A.P. (in press) Antarctic sea ice elevation from satellite radar altimetry data. Geophysical Research Letters.
Haas, C., Nicolaus, M., Willmes, S., Worby, A.P., Flinspach, D. (in press) Sea ice and snow thickness and physical properties of an ice floe in the western Weddell Sea and their changes during spring warming. Deep-Sea Research I.
Heil, P., Hutchings, J.K., Worby, A.P., Johansson, M., Launiainen, J., Haas, C., Hibler, W.D.III. (in press) Tidal forcing on sea ice drift and deformation in the wstern Weddell Seas during December 2004. Deep-Sea Research I.
Nicol, S., Worby, A.P., Leaper, R. (in press), Changes in the Antarctic sea ice ecosystem: Potential effects on krill and baleen whales. Marine and Freshwater Research.
Steer, A. D., Worby, A.P., Heil, P. (in press), Changes in floe size distribution during early summer in the western Weddell Sea. Deep-Sea Research II.
Tison, J-L., Worby, A.P., Delille, B., Schoemann, V., de Jong, J., Lannuzel, D., Haas, C. (in press) Thermodynamic evolution of summer first year sea ice properties at the Ice Station Polarstern (ISPOL), Western Weddell Sea, Antarctica: Implications for biological activity and air-ice-sea gas exchanges. Deep-Sea Research I.
Worby, A.P., Geiger, C.A., Paget, M.J., van Woert, M., Ackley, S.F, DeLiberty, T. (in press), The thickness distribution of Antarctic sea ice. Journal of Geophysical Research.
Worby, A.P., Markus, T., Steer, A.D., Lytle, V.I., Massom, R.A. (in press) Validation of the AMSR-E snow thickness product using in situ data and aerial photography. Journal of Geophysical Research.
Non-refereed scientific articles and general interest articles
Ackley, S., Worby, A.P. (2006) Antarctic sea ice processes and climate program. The International Polar Year. Ice and Climate News 7. p12; [Ref: 12728]; AAS Project 2669
Allison, I., Bindoff, N. Lytle, V.I., Worby, A.P., Massom, R.A. (1996), Recent research in the East Antarctic sea ice zone. In: Goddwin, I. (ed), Newsletter of the SCAR Global Change Programme 1, 12-15.
Jeffries, M.O., Morris, K., Worby, A.P., Weeks, W.F. (1994) Late winter characteristics of the seasonal snow cover on sea-ice floes in the Bellingshausen and Amundsen Seas. Antarctic Journal of the United States 29(1). 9-10; [Ref: 3095]; AAS Project 189
Jeffries, M.O., Morris, K., Worby, A.P., Weeks, W.F. (1994) Late winter sea-ice properties and growth processes in the Bellingshausen and Amundsen Seas. Antarctic Journal of the United States 29(1). 11-13; [Ref: 3096]; AAS Project 189
Lytle, V.I., Massom, R., Worby, A.P., Allison, I. (1997) Floe sizes in the East Antarctic Sea Ice Zone estimated using combined SAR and field data. Proceedings of the 3rd ERS Scientific Symposium on Space at the service of our Environment, Florence, Italy 17-21 March 1997. No,3. 931-936; [Ref: 7511]; AAS Project 189
Reid, J., Vrbancich, J., Worby, A.P. (2002) A comparison of shipborne and airborne electromagnetic methods for Antarctis sea ice thickness measurements. ASEG 16th Geophysical Conference & Exhibition. February 2003, Adelaide. 1-5; [Ref: 10953]; AAS Project 1342
Worby, A.P. (2005) Going with the floe. Pyper, W. (ed.) Australian Antarctic Magazine 9 (Spring 2005). 6-7; [Ref: 12247]; AAS Project 2559
Worby, A.P. (2002) Sea ice data sets help build the big picture. Elizabeth Haywood, (ed.) Australian Antarctic Magazine 4. 15-17; [Ref: 10693]
Worby, A.P. (2001), Observing Antarctic Sea Ice. In: Ice and Climate, The Arctic Climate System Study/Climate and Cryosphere Project Newsletter, pp 8.
Worby, A.P., Ackley, S.F. (2000) Sea ice thickness methodically measured in the Antarctic. Earth in Space 12(7). 1-16; [Ref: 10007]; AAS Project 189
Worby, A.P., Weeks, W.F., Jeffries, M.O., Morris, K., Jana, R. (1994) Late winter sea-ice-thickness and snow-thickness distributions in the Bellingshausen and Amundsen Seas. Antarctic Journal of the United States 29(1). 13-15; [Ref: 3098]; AAS Project 189Reports
Heil, P., Worby, A.P., Hutchings, J.K., Launiainen, J., Johansson, M., Hibler III, W. (2005) Ice Station POLarstern (ISPOL):Drifting Buoy Data Report Antarctic Climate & Ecosystems Cooperative Research Centre, Technical Report No. 1 20 pp.; [Ref: 12841]; AAS Projects 2504, 2559, 2678
Jeffries, M.O., Worby, A.P., Morris, K., Weeks, W.F., Hurst-Cushing, B., Jaņa, R., Krouse, H.R. (1997) Late winter snow and ice characteristics of first year floes in the Bellingshausen and Amundsen seas, Antarctica: Results of investigations during R.V. Nathaniel B. Palmer Cruise, NBP 93/5 in August and September, 1993. University of Alaska, Fairbanks, Geophysical Institute Report, UAGR 325 115 pp; [Ref: 7509]; AAS Project 189
Lytle, V.I., Worby, A.P., Massom, R.A., Wall, M., Allison, K., Heil, P., Knott, I. (1995) Winter conditions in East Antarctic pack ice: A report on the 1995 HIHO HIHO ice drift and deformation experiment, Antarctic CRC Research Report 13. 189; [Ref: 8814]; AAS Projects 189, 742
Nicol, S., Worby, A.P., Leaper, R. (2007) Changes in the Antarctic sea ice ecosystem: potential effects on krill and baleen whales Paper SC/59/E8 presented to the IWC Scientific Committee, May 2007 (unpublished) 30pp; [Ref: 12956]
Nicol, S., Worby, A.P. (2005) The Antarctic sea ice ecosystem and its potential responses to global change. IWC SC/57/E14 .; [Ref: 12697]; AAS Project 2301
Worby, A.P., Massom, R.A. (1995) The structure and properties of sea ice and snow cover in the East Antarctic pack ice. Antarctic CRC Research Report (7). 1-191; [Ref: 9888]; AAS Project 189
Worby, A.P., Allison, I. (1999) A technique for making ship-based observations of Antarctic sea ice thickness and characteristics. Part I: Observational Techniques and Results. Antarctic CRC Research Report 14. [Ref: 8794]; AAS Projects 189, 741
Worby, A.P., Dirita, V. (1999) A technique for making ship-based observations of Antarctic sea ice thickness and characteristics. Part II: User operating manual Antarctic CRC Research Report 14. [Ref: 9391]; AAS Project 189
Worby, A.P. (1994) Sea ice thickness observations from East Antarctica. BMRC Research Report 42. 55-58; [Ref: 3100]
Theses
Worby, A.P. (1991) A sensitivity study of the heat budget of the Antarctic sea ice zone. Hons thesis, , Institute of Antarctic and Southern Ocean Studies, University of Tasmania, Hobart, Australia. 108 pp.
Worby, A.P. (1998) Seasonal variations in the thickness distribution and snow cover of Antarctic sea ice in the region 60°-150°E PhD thesis, Institute of Antarctic and Southern Ocean Studies, University of Tasmania, Hobart, Australia. In AAD library: 551.326.7(*7) 195 pp; [Ref: 8811]; AAS Projects 189, 741
Multimedia
Worby, A.P. (1999) Observing Antarctic Sea Ice: A practical guide for conducting sea ice obsevations from vessels operating in the Antarctic pack ice. A CD-ROM produced for the Antarctic Sea Ice Processes and Climate (ASPeCt) program of the Scientific Committee for Antarctic Research (SCAR) Global Change (GLOCHANT) program, Hobart, Tasmania, Aus .; [Ref: 9390]; AAS Project 189
