Aarhus University Seal

Niels Aage Tvis Knudsen

Professor Emeritus

Curriculum Vitae

CURRICULUM  VITAE

Knudsen, Niels Aage Tvis

Department of Earth Sciences (DES), Aarhus University (AU)

Langelandsgade, Bg. 520, DK-8000 Århus C

Telephone + 45 89 42 11 11, + 45 89 42 36 52 (direct), Fax: +45 86 18 00 37;

 E-mail:  ntkgeo.au.dk

Born: August 9th, 1945

Education  and university degrees:

M.Sc in physical geography at Aarhus University, 1972

Ph.D. in glaciology at Institute of Geology (DES), Aarhus University, 1976

Present position:

From 1978 associate professor at DES, AU. Research on glaciology, glacial morphology, glacial hydrology and photogrammetry in Norway, Iceland and Greenland.

Earlier positions:

Assistant professor at DES, 1972-1978.

Research experience:

Studies on mass- and energy balance at glaciers in Okstindan, Norway, 1970-1978.

Leader of the Okstindan Glacier Project: Studies in glacial hydrology, ice movement and glacier variations in Okstindan and Svartisen, Nordland, Norway since 1978. The project is a joint research programme with School of Geography, University of Manchester, UK. Funded by AU's Forskningsfond, The British Council, NERC, and SNF.

Researcher on GGU expeditions to Greenland 1980, 1982 and 1983: Mapping glacier variations in Johan Dahl Land, the Godthåbsfjord area, and the Tasersiaq area, West Greenland.

Radio-echo soundings on Mitdluaqkat Glacier, East Greenland under the framework project by the Arctic Research Group at IGCU, 1994

Researcher on the national and international framework project: Landscape and climate studies in glacial environments-a continuation of the Myrdalljökull-project in Iceland, 1995

Cooperative massbalance programme at Austre Okstindbreen, Nordland, Norway with the Norwegian Energy Board, Oslo, Norway 1991-1997. Funded by NVE. 

Researcher on the project: Snow cover mapping using ERS SAR data, 1995-96. A joint research project with 8 Scandinavian and English research institutions. Funded by SNF.

Massbalance measurements on Mittivakkat Glacier, East Greenland under the framework programme by the Arctic Research Group at IGCU, 1996-2002.

Reseacher on the program:Imersuaq, Vandkraft: nye metoder-ny viden-nye vurderinger 1999 - 2002. Funded by Programkomiteen for Nordatlantforskning.

Researcher on the programme: Fortsatte undersøgelser af samspillet mellem klima og glaciale og fluvioglaciale processer, sedimenter og landskabsformer i recente miljøer, Myrdalsjøkull, Island og Sermilik/Zackenberg. Funded by SNF 1999-2002

Researcher on the project: Undersøgelser af en “surging  glacier” på Disko/Grønland og dens betydning for det fluviale og marine miljø nedstrøms for gletscheren. Funded  by Carlsbergfondet  2000-2002..

Researcher on the project: Opbygningen af en dynamisk model for Mittivakkat Gletscheren, med særligt henblik på processer ved bunden, dræneringssystemet og vand- sedimenttransporten.. Funded by SNF 2004-2006.

Other experience and appointments:

Called on as reviewer of manuscripts by: Annals of Glaciology, Boreas, Danish Journal of Geography and Journal of Glaciology since 1978.

ERASMUS programme coordinator in Geomorphology and Physical Geography, the Faculty of Science, AU since 1990.

Member of the administrative board at DES, AU 1974-1980 and 1987-1996.

Member of the Natural Science Faculty Board, AU 1980-89.

ViceDean of the Faculty of Natural Science 1982-1987 and 1996-2002.

Chairman of the Safety Board, Faculty of Natural Science, AU since 1985

Chairman of the International Board, Aarhus University, 2001-

Chairman of the International Board, Faculty of Natural Science 1990-2001.

Member of several judging committees - Ph.D. theses and scientific positions.

External examiner in Geomorphology at Geografisk Institut, KU since 1975.

Member of Nationalkomiteen for Geografi 1999-

Member of Nationalkomiteen for Geologi 2001-

Science communication:

Responsible editor of GeologiskNyt.

Publications since 1998:

Knudsen, N. T. and Haakensen, N. 1998: Austre Okstindbre(155.4G).-In: Kjøllmoen, B. eds.- Glaciologiske Undersøgelser i Norge 1996 og 1997. Publikasjon nr. 20 1998. Norges Vassdrags- og Energiverk. Oslo. p 95-101.

Theakstone, W. H. and Knudsen, N. T. 1998: Isotopic and ionic variations in glacier river water durring three contrasting ablation seasons. -In: Advances in Hydrological Processes. (Eds. Richards, K. S. And Tranter, M.) Wiley and Sons. ISBN 0-471-98168-0. 29-45.

Theakstone, W. H., Jacobsen, F. M. and Knudsen, N. T. 1999:  Changes of snow cover thickness measured by conventional mass balance methods and Global Positioning System surveying. Geografiska Annaler 81 A (4): 767-776.

Knudsen, N. T. and Hasholt, B. 1999: Radio-echo sounding at the Mittivakkat Gletscher, Southeast Greenland. Arctic, Antarctic and Alpine Research. Vol. 31, 3, 321-328.

Knudsen, N. T. 1999: Tendenser i massebalancen på gletschere i Nordland, Norge, i årene 1945-1997. Storbresymposiet. 50 år med massebalancemålinger. Norges vassdrags- og energidirektorat, 1999, Oslo, 40-43.

Knudsen, N. Tvis: Okstindan.  In :Andreassen, L. M., Kjøllmoen, B., Knudsen, N. T., Whalley, B. and Fjellanger, J. 2000: Regional change of glaciers in northern Norway. Eds. Liss Andreassen. Norwegian Water Resources and Energy Directorate, Oslo, 2000. ISBN 82-410-0410-9, 15-27.

Nielsen, N. og Knudsen, N. Tvis. 1999: En “galopperende” gletscher - hvad skete der ?. GeologiskNyt, 5/99, 22-24.

König, M., Winther, J-G., Knudsen, N. T. and Guneriussen, T. 2001: Equilibrium and firn-line detection on Austre Okstindbreen, Norway, with airborne multipolarisation SAR. Journal of Glaciology, 47, 157,251-257

Bøggild, C.E., Knudsen, N. T. og Ahlstrøm, A.P. 2001: Imersuaq - vandkraftpotentiale i Grønland. GeologiskNyt, 3/01 13-16.

Knudsen, N. Tvis: 2003: Aarhusiansk fornemmelse for is. Kronik i Jyllandsposten. Marts 2003

Hasholt, B., Liston, G.E. and Knudsen, N. T. 2003: Snow-Distribution modelling in the Ammassalik Region, South East Greenland.  Nordic Hydrology 34, 1-2, 1-15.

Yde, J.C., Knudsen, N.T. and Gasser, G.:  2003: Oxygen isotope studies of bulk meltwaters in the initial quiescent phase at a surge-type glacier, West Greenland. Proceedings of the Northern Research Basins. 14th  International Symposium and Workshop. Kangerlussuaq/Sdr. Strømfjord, Greenland. 209-216

Knudsen, N. T. and Hasholt, B.: 2003: Mass balance observations at Mittivakkat Gletscher, Southeast Greenland.  Proceedings of the Northern Research Basins 14th  International Symposium and Workshop. Kangerlussuaq/Sdr. Strømfjord, Greenland. 77-84

Yde, J.C., Knudsen, N.T., Kronborg, C. og Larsen, N.K. 2003. Naled – lagdelt isdannelse i kolde områder. GeologiskNyt, 6, 16-19.

Yde, J.C. and Knudsen, N.T. : 2004: The importance of oxygen isotope provenances in relation to solute content of bulk meltwaters at Imersuaq Glacier, West Greenland. Hydrological Processes. 18,125-139.

Yde, J.C. and Knudsen, N.T.: 2005: (in press) Glaciological features in the initial quiescent phase of Kuannersuit Glacier, Greenland. Geografiska Annaler.

Yde, J.C. and Knudsen, N.T.: 2005: (in press): Observations of debris-rich naled associated with a major surge event. Permafrost and Periglacial Processes.

Yde, J.C., Knudsen, N.T., Larsen, N.K., Kronborg, C., Nielsen, O.B., Heinemeier, J. and Olsen, J. :2005: (in press) The presence of thrust-block naled after a major surge event. Annals of Glaciology.

 

Knudsen, N. T. and Hasholt, B. 2004: Mass balance observations at Mittivakkat Gletscher, Southeast Greenland 1995-2002. Nordic Hydrology, vol. 35, 381 -390.

Knudsen, N. T and Odgård, B 2004: Dannelse af søer og vandløb og deres udvikling. ( In Ed: Erik Hofmeister: De ferske vandes kulturhistorie i Danmark ), 9-21

Yde, J.C., Knudsen, N.T. and Nielsen, O.B.: 2005: (in press) Glacier hydrochemistry, solute provenance, and chemical denudation at a surge-type glacier in Kuannersuit Kuussuat, Disko Island, West Greenland. Journal of Hydrology, 300, 172 – 187.

Mernild, S. H., Liston, G. E, Hasholt, B. and Knudsen, N. T. 2005: (accepted for publication) Snow-Distribution and Melt-Modelling at the Mittivakkat Glacier, Sermilik, Eastern Greenland. Journal of Hydrometeorology.

Knudsen, N. T. 2005: Vand I fast form på Jorden. (In Ed.: Kaufmann and Keiding, viden om Vand, Aarhus Universitetsforlag, 93-106.