Items where Author is "Nixdorf, Uwe"

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Number of items: 63.

Article

Herber, A. , Gernandt, H. , Jokat, W. , Nixdorf, U. , Steinhage, D. , Miller, H. , Treffeisen, R. , Yamanouchi, T. , Shiraishi, K. , Nogi, Y. , Shibuya, K. and Wada, M. (2008)
Joint AWI-NIPR airborne operations in the past and the future ,

Polar Meteorology and Glaciology, 20 , 40 - 52 .

hdl:10013/epic.31528

Article

Hawley, R. L. , Morris, E. M. , Cullen, R. , Nixdorf, U. , Shepherd, A. P. and Wingham, D. J. (2006)
ASIRAS airborne radar resolves internal annual layers in the dry-snow zone of Greenland ,

Geophysical research letters, 33, L04502 .

doi:10.1029/2005GL025147 , hdl:10013/epic.24880

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Article

Helm, V. , Hendricks, S. , Göbell, S. , Rack, W. , Haas, C. , Nixdorf, U. and Boebel, T. (2006)
CryoVEx 2004 and 2005 (BoB) data acquisition and final report ,

Alfred Wegener Institute, Bremerhaven, Germany. .

hdl:10013/epic.34417

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Article

Steinhage, D. , Nixdorf, U. , Rack, W. and Miller, H. (2006)
Flugzeuggestütztes EMR und Anwendungsbeispiele aus den Polarregionen ,

Mitteilungen der Deutschen Geophysikalischen Gesellschaft,Sonderband II/2006, pp. 55-67 .

hdl:10013/epic.24940

Article

Horwath, M. , Dietrich, R. , Baessler, M. , Nixdorf, U. , Steinhage, D. , Fritzsche, D. , Damm, V. and Reitmayr, G. (2006)
The Nivlisen, an Antarctic ice shelf in Dronning Maud Land: geodetic-glaciological results from a combined analysis of ice thickness, ice surface height and ice flow observations ,

Journal of Glaciology, 52 (176), pp. 17-30 .

hdl:10013/epic.21041

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Article

Meyer, U. , Steinhage, D. , Nixdorf, U. and Miller, H. (2005)
Airborne Radio Echo Sounding Measurements from Novolazarevskaya Skiway, Central Dronning Maud Land, Antarctica ,

Geologisches Jahrbuch Serie E, B97, pp. 129-140 .

hdl:10013/epic.16582

Article

Eisen, O. , Rack, W. , Nixdorf, U. and Wilhelms, F. (2005)
Characteristics of accumulation in the vicinity of the EPICA deep-drilling site in Dronning Maud Land, Antarctica ,

Annals of Glaciology, 41 , pp. 41-46 .

hdl:10013/epic.21131

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Article

Eisen, O. , Nixdorf, U. , Wilhelms, F. and Miller, H. (2004)
Age estimates of isochronous reflection horizons by combining ice core, survey, and synthetic radar data. ,

Journal of Geophysical Research-Solid Earth, 109, B04106 .

doi:10.1029/2003JB002858 , hdl:10013/epic.14730

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Article

Rotschky, G. , Eisen, O. , Wilhelms, F. , Nixdorf, U. and Oerter, H. (2004)
Spatial distribution of surface mass balance on Amundsenisen plateau, Antarctica, derived from ice-penetrating radar studies ,

Annals of Glaciology, 39 , pp. 265-270 .

hdl:10013/epic.19549

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Article

Eisen, O. , Nixdorf, U. , Keck, L. and Wagenbach, D. (2003)
Alpine Ice Cores and Ground Penetrating Radar: Combined Investigations for Glaciological and Climatic Interpretations of a Cold Alpine Ice Body ,

TellusB(5), 55 , pp. 1007-1017 .

hdl:10013/epic.16358

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Article

Eisen, O. , Wilhelms, F. , Nixdorf, U. and Miller, H. (2003)
Identifying isochrones in GPR profiles from DEP-based forward modeling ,

Annals of Glaciology, 37 , pp. 344-350 .

hdl:10013/epic.15894

Article

Eisen, O. , Wilhelms, F. , Nixdorf, U. and Miller, H. (2003)
Revealing the nature of radar reflections in ice: DEP-based FDTD forward modeling ,

Geophysical Research Letters, Vol. 30, No. 5 .

doi:10.1029/2002GL016403 , hdl:10013/epic.16357

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Article

Eisen, O. , Nixdorf, U. , Wilhelms, F. and Miller, H. (2002)
Electromagnetic wave speed in polar ice: Validation of the CMP technique with high resolution dielectric-profiling and gamma-density measurements ,

Annals of Glaciology, 34 , pp. 150-156 .

hdl:10013/epic.14204

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Article

Lythe, M. B. , Vaughan, D. G. , BEDMAP, C. , Lambrecht, A. , Miller, H. , Nixdorf, U. , Oerter, H. , Steinhage, D. and Huybrechts, P. (2001)
BEDMAP: a new ice thickness and subglacial topographic model of Antarctica ,

Journal of Geophysical Research, 106(B6), 11, 335 .

hdl:10013/epic.15080

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Article

Nixdorf, U. and Göktas, F. (2001)
Spatial depth distribution of the subglacial bed and internal layers in the ice around NGRIP, Greenland, derived with airborne RES ,

Journal of Applied Geophysics, 47 , pp. 175-182 .

hdl:10013/epic.15054

Article

Steinhage, D. , Nixdorf, U. , Meyer, U. and Miller, H. (2001)
Subglacial topography and internal structure of central and western Dronning Maud Land, Antarctica, determined from airborne radio echo sounding. ,

Journal of Applied Geophysics, 47 , pp. 183-189 .

hdl:10013/epic.15055

Article

Nixdorf, U. , Wilhelms, F. and Eisen, O. (2000)
Firnstrukturen aus Boden-EMR-Messungen in Dronning-Maud-Land, Antarktis / Forkmann, B. (editor) ,

Rundtischgespräch zum Them Radar: "Georadar - Erfahrungen und Perspektiven", Freiberg 30. Sep. - 1. Okt. 2000, Mitteilungen Sonderband I/2000, Deutsche Geophysiklische Gesellschaft, pp. 67-73 .

hdl:10013/epic.14638

Article

Lambrecht, A. , Mayer, C. , Oerter, H. and Nixdorf, U. (1999)
Investigations of the mass balance of the southeastern Ronne Ice Shelf, Antarctica ,

Annals of Glaciology Volume 29, pp. 250-254 .

hdl:10013/epic.12447

Article

Nixdorf, U. , Steinhage, D. , Meyer, U. , Hempel, L. , Jenett, M. , Wachs, P. and Miller, H. (1999)
The newly developed airborne RES-System of the AWI as a glaciological tool ,

Annals of Glaciology Volume 29, pp., pp. 231-238 .

hdl:10013/epic.12822

Article

Riedel, B. , Nixdorf, U. , Hanke, S. , Eckstaller, A. and Mayer, C. (1999)
The response of the Ekström Ice Shelf in the grounding zone to tidal forcing ,

Annals of Glaciology, 29 , pp. 239-242 .

hdl:10013/epic.13189

Article

Nixdorf, U. , Dunker, E. , Eckstaller, A. , Frenzel, A. , Hannke, S. , Lambrecht, A. , Rohardt, G. , Spindeldreher, C. and Ziffer, A. (1997)
Filchner-V - Massenhaushalt und Dynamik des Filchner-Ronne-Schelfeises > Schelfeis-Ozean-Wechselwirkung ,

Reports on Polar Research, Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, 219 , pp. 69-88 .

hdl:10013/epic.18093

Article

Lambrecht, A. , Mayer, C. , Hempel, L. , Nixdorf, U. and Oerter, H. (1997)
Glaciological investigations in the grounding line area of the Foundation Ice Stream, Antarctica ,

Polarforschung, 65 (1), pp. 15-25 .

hdl:10013/epic.12446

Article

Oerter, H. , Lambrecht, A. , Mayer, C. , Nixdorf, U. and Graf, W. (1996)
Das Filchner-Ronne-Schelfeis-Projekt ,

Geowissenschaften, 14. Jahrgang, Heft 9, pp. 352-360 .

hdl:10013/epic.12888

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Article

Lambrecht, A. , Mayer, C. , Nixdorf, U. and Oerter, H. (1996)
Glaciological investigations in the grounding line area of the Foundation Ice Stream ,

Filchner-Ronne Ice Shelf Programme Report, 10 , pp. 50-56 .

hdl:10013/epic.12445

Article

Nixdorf, U. , Oerter, H. , Lambrecht, A. , Rohardt, G. and Fahrbach, E. (1996)
Two temperature profiles in the northern part of the FRIS ,

Filchner-Ronne Ice Shelf Program, Report No.10, Alfred Wegener Institute for Polar and Marine Research, Bremerhaven .

hdl:10013/epic.18700

Article

Nixdorf, U. , Oerter, H. and Miller, H. (1994)
First access to the ocean beneath Ekströmisen, Antarctica, by means of hot-water drilling ,

Annals of Glaciology Volume 20, pp., pp. 110-114 .

hdl:10013/epic.12820

Article

Fahrbach, E. , Nixdorf, U. , Oerter, H. and Rohardt, G. (1994)
Tidal induced melting of the Ekström Ice Shelf in the southeastern Weddell Sea ,

Filchner-Ronne Ice Shelf Program, Report No.8, Alfred Wegener Insitute for Polar and Marine Research, Bremerhaven, pp. 20-23 .

hdl:10013/epic.18701

Article

Eckstaller, A. , Brodscholl, A. , Mandler, H. , Miller, G. , Nixdorf, U. , Patzelt, G. , Pietschmann, M. and Rott, H. (1991)
Expedition in die Kottasberge - Heimefrontfjella - Kirvanveggen, Neuschwabenland > Refraktionsseismik ,

Reports on Polar Research, Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, 86 , pp. 108-122 .

hdl:10013/epic.18065

Article

Aric, K. , Gutdeutsch, R. , Leichter, B. , Lenhardt, W. , Plomerova, J. , Babuska, V. , Pajdusak, P. and Nixdorf, U. (1989)
Structure of the lithosphere in the eastern alps derived from P-residual analysis ,

Arbeiten aus der Zentralanstalt für Meteorologie und Geodynamik, Wien, 73 , 1-26 .

hdl:10013/epic.10668

Book

Eckstaller, A. , Müller, C. , Nixdorf, U. and Rogenhagen, J. (1997)
The Geophysical Observatory at Neumayer Station, Antarctica ,

In: The Antarctic Region: Geological Evolution and Processes, (C. A. Ricci ed.) Terra Antartica, Publ. Siena, ISBN: 88-900221-0-8 .

hdl:10013/epic.14231

Thesis

Thesis -PhD

Nixdorf, U. (1992)
Dehnungsbeben an einer Störungszone im Ekström-Schelfeis nördlich der Georg-von-Neumayer Station, Antarktis. - Eine Untersuchung mit seismologischen und geodätischen Methoden ,

PhD thesis, Universität Bremen.

hdl:10013/epic.12819

Conference

Conference -Poster

Hofstede, C. , Uenzelmann-Neben, G. , Nixdorf, U. , Eisen, O. and Kulessa, B. (2009)
Ice-internal and sedimentary structures in the Ekströmisen grounding line region detected with multi-offset seismics ,

69. Jahrestagung der Deutschen Geophysikalischen Gesellschaft, 23.-26.3.2009, Kiel. .

hdl:10013/epic.31720

Conference -Talk

Hofstede, C. , Burnie, I. , Uenzelmann-Neben, G. , Nixdorf, U. , Eisen, O. and Kulessa, B. (2008)
Ice-Internal and Sedimentary Structures in the Ekstr\"omisen Grounding Line Region Detected With Multi-Offset Seismics. ,

AGU fall meeting, 15-19 December, session C024. .

hdl:10013/epic.31051

Conference -Talk

Steinhage, D. , Nixdorf, U. , Rack, W. and Miller, H. (2006)
Flugzeuggestütztes EMR und Anwendungsbeispiele aus den Polarregionen ,

DGG Kolloquium Georadar. Jahrestagung der Deutschen Geophysikalischen Gesellschaft. .

hdl:10013/epic.24941

Conference -Talk

Miller, H. , Eckstaller, A. , Frenzel, A. , Wilhelms, F. , Schwander, J. , Nixdorf, U. and Fritzsche, D. (2006)
Seismometry in Deep Ice Core Boreholes: some case studies ,

EGU General Assembly,3.-7., April, Wien. .

hdl:10013/epic.25227

Conference -Poster

Herber, A. , Bartsch, I. , Birnbaum, G. , Gernandt, H. , Haas, C. , Hartmann, J. , Hass, C. , Jacobi, H. W. , Jokat, W. , Lemke, P. , Lüpkes, C. , Miller, H. , Neuber, R. , Nixdorf, U. , Rack, W. , Steinhage, D. and Treffeisen, R. (2005)
AWI aircraft operations in the last 20 years and future prospects ,

22. Internationale Polartagung Deutsche Gesellschaft für Polarforschung, 18-24 Sept., Jena, Germany. .

hdl:10013/epic.24251

Conference -Poster

Steinhage, D. , Nixdorf, U. and Miller, H. (2005)
Charakteristika des Eis-Fels-Übergangs abgeleitet aus flugzeuggestützten EMR-Messungen um NorthGRIP und des angrenzenden nordöstlichen grönländischen Eisschilds ,

22. Internationale Polartagung, Deutsche Gesellschaft für Polarforschung, vom 18. bis 24. September 2005 in Jena. .

hdl:10013/epic.22791

Conference -Poster

Herber, A. , Steinhage, D. , Nixdorf, U. , Mildner, W. , Zielinski, O. , Hengstermann, T. , Boebel, T. , Garbrecht, T. , Stemme, R. and Kaiser, M. (2005)
Future prospects operation of an UAV in the Arctic ,

Posterbeitrag, Conference ICARP II, WG4, Copenhagen.-11. November 2005. .

hdl:10013/epic.24250

Conference -Talk

Steinhage, D. , Nixdorf, U. and Miller, H. (2005)
Ice thickness and basal reflectivity in Northeast Greenland derived from airborne radio-echo sounding, Third International Symposium on the Arctic Research and Seventh Ny-Ålesund Scientific Seminar, 22-24 Feb. 2005, Tokyo, Japan ,

. .

hdl:10013/epic.22238

Conference -Poster

Eisen, O. , Nixdorf, U. and Wilhelms, F. (2004)
Area-wide temporal characteristics of accumulation in the vicinity of the EPICA deep drilling site in Dronning Maud Land, Antarctica. ,

SCAR Open Science Conference, 25-31 July 2004, Bremen, Germany. .

hdl:10013/epic.20527

Conference -Poster

Steinhage, D. , Rack, W. , Nixdorf, U. and Miller, H. (2004)
Ice thickness, subglacial topography, surface velocities, and mass flux of Vestraumen, West Dronning Maud Land, and adjacent areas derived from airborne radio-echo sounding and satellite remote sensing ,

SCAR Open Science Conference, 25-31 July 2004, Bremen, Germany. .

hdl:10013/epic.21118

Conference -Conference paper

Rack, W. , Nixdorf, U. , Miller, H. and Runge, H. (2004)
Improved monitoring of polar land ice dynamics by means of SAR interferometry: ICEDANCE ,

Proceedings of the Fourth International Symposium on Retrieval of Bio- and Geophysical Parameters from SAR Data for Land Applications : 16-19 November 2004, Innsbruck .

hdl:10013/epic.23489

Conference -Talk

Eisen, O. , Nixdorf, U. and Wilhelms, F. (2004)
Spatial and temporal variability of accumulation at the EDML deep drilling site over the last millenium, derived from ice-penetrating radar ,

1st EGU General Assembly, 26 - 30 April, Nice, France,. .

hdl:10013/epic.20470

Conference -Poster

Müller, J. , Hoffmann, M. , Ruelke, A. , Eckstaller, A. , Jokat, W. , Nixdorf, U. , Dietrich, R. and Miller, H. (2003)
Geodaetisch-geophysikalische Antarktisexpedition Zentrales Dronning Maud Land (JUTEX 2001/2002) ,

21. Internationale Polartagung, 17. bis 22. Maerz 2003 Kiel, Germany. .

hdl:10013/epic.20184

Conference -Poster

Eisen, O. , Wilhelms, F. , Nixdorf, U. and Miller, H. (2003)
Identifying isochrones in GPR profiles from DEP-based forward modelling ,

21. Internationale Polartagung, Kiel. .

hdl:10013/epic.19748

Conference -Talk

Steinhage, D. , Nixdorf, U. and Miller, H. (2003)
Internal structure of the ice sheet between Kohnen Station and Dome Fuji revealed by airborne radio-echo sounding ,

7th International Symposium on Antarctic Glaciology, 25-29/08/2003, Milano, Italy. .

hdl:10013/epic.19524

Conference -Talk

Eisen, O. , Wilhelms, F. , Steinhage, D. , Nixdorf, U. and Miller, H. (2003)
Interpreting airborne ice penetrating radar data by ice core based numerical forward modeling ,

Seventh International Symposium on Antarctic Glaciology (ISAG-7), Milano, Italy, 25-29.8.2003. .

hdl:10013/epic.19546

Conference -Invited talk

Eisen, O. , Wilhelms, F. , Nixdorf, U. and Miller, H. (2003)
Investigating the origin of shallow electromagnetic reflections in cold ice by finite-difference forward modeling ,

EGS 2003. .

hdl:10013/epic.16653

Conference -Talk

Nixdorf, U. , Barret, P. J. , Dunbar, G. B. , Carter, L. , Giorgetti, G. , Niessen, F. , Pyne, A. R. , Robinson, N. , Riesselman, C. , Dunker, E. and Miller, H. (2003)
MULTIDISCIPLINARY INVESTIGATION OF MCMURDO-ROSS ICE SHELF AND THE UNDERLYING OCEAN AND SEDIMENTS AT WINDLESS BIGHT, ANTARCTICA, BY MEANS OF HOT-WATER DRILLING ,

International Symposium on Antarctic Glaciology, 25-29/08/2003, Mailand, Italien. .

hdl:10013/epic.19525

Conference -Talk

Eisen, O. , Nixdorf, U. and Wilhelms, F. (2003)
Numerische Untersuchungen elektromagnetischer Reflexionen in Eis und Ableitung der Akkumulation ,

GOCE/CryoSat-Workshop, 4.-5. November 2003, EADS Astrium, Immenstaad bei Friedrichshafen. .

hdl:10013/epic.20069

Conference -Poster

Rotschky, G. , Eisen, O. , Steinhage, D. , Nixdorf, U. and Miller, H. (2003)
Spatial characteristics of accumulation patterns derived from combined data sets on Amundsenisen plateau, Antarctica ,

.7th International Symposium on Antarctic Glaciology, Milano .

hdl:10013/epic.19747

Preview

Conference -Talk

Eisen, O. , Nixdorf, U. , Keck, L. and Wagenbach, D. (2002)
GPR and Alpine Ice Cores - Combined investigations for glaciological and climatic interpretations of a cold alpine environment ,

Alpine Glaciology Meeting, Zuerich. .

hdl:10013/epic.19741

Conference -Talk

Eisen, O. , Wilhelms, F. , Nixdorf, U. and Miller, H. (2002)
Identification of shallow isochrones in DML from GPR surveys and numerical modeling ,

1st Joint EPICA/ITASE workshop, Potsdam. .

hdl:10013/epic.19746

Conference -Poster

Eisen, O. , Wilhelms, F. , Nixdorf, U. and Oerter, H. (2002)
Identifying isochrones in GPR profiles from DEP-based forward modelling ,

International Symposium on Physical and Mechanical Processes in Ice in Relation to Glacier and Ice Sheet Modelling, Chamonix-Mont Blanc, France, 25.-31. August 2002. .

hdl:10013/epic.19744

Conference -Poster

Eisen, O. , Wilhelms, F. , Nixdorf, U. and Miller, H. (2002)
Identifying isochrones in GPR profiles from DEP-based forward modelling ,

Swiss Polar Research Summer School, Riederalp. .

hdl:10013/epic.19745

Conference -Talk

Eisen, O. , Nixdorf, U. , Wilhelms, F. and Miller, H. (2001)
Electromagnetic wave speed in polar ice: Validation of the CMP technique with high resolution DEP and Gamma-density measurements ,

4th Symposium on Remote Sensing in Glaciology, Maryland. .

hdl:10013/epic.19742

Conference -Conference paper

Schwamborn, G. , Rachold, V. , Schneider, W. , Grigoriev, M. N. and Nixdorf, U. (2000)
Ground Penetrating Radar and Shallow Seismic - Stratigraphic and Permafrost Investigations of Lake Nikolay, Lena Delta, Arctic Siberia ,

Proceedings of the Eighth International Conference on Ground Penetrating Radar GPR2000, Gold Coast, Australia 23-26 May 2000, SPIE 4084 .

hdl:10013/epic.15665

Conference -Conference paper

Schwamborn, G. , Schneider, W. and Nixdorf, U. (2000)
Wassertiefe und Sedimentmächtigkeit im Nikolaysee (Sibirische Arktis) ,

Jahrestagung der DGG 2000 in München, Forkmann, B. (ed.),Sonderband 1/2000 .

hdl:10013/epic.16986

Conference -Poster

Jung-Rothenhäusler, F. , Zahnen, N. , Oerter, H. , Steinhage, D. , Nixdorf, U. , Wilhelms, F. and Miller, H. (1999)
Management, integration and analysis of EPICA-data with the regional geoinformation system DML-GIS ,

XXIV General Assembly European Geophysical Society (EGS): EISMINT/EPICA Symposium on Ice sheet modelling and deep ice drilling, Den Haag, The Netherlands.4.1999. .

hdl:10013/epic.17988