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Article
Trantow, T. , Herzfeld, U. C. , Helm, V. ![]() Sensitivity of glacier elevation analysis and numerical modeling to CryoSat-2 SIRAL retracking techniques ,
Computers & Geosciences,
146
,
p. 104610
.
doi:https://doi.org/10.1016/j.cageo.2020.104610
, hdl:10013/epic.77800f91-ebe0-4459-af95-1713876ea3f2
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Article
Carlsen, T. , Birnbaum, G. ![]() ![]() Parameterizing anisotropic reflectance of snow surfaces from airborne digital camera observations in Antarctica ,
The Cryosphere
.
doi:https://doi.org/10.5194/tc-14-3959-2020
, hdl:10013/epic.ad095254-8b1f-42f6-bf0a-91dd2a87c64c
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Article
Otosaka, I. N. , Shepherd, A. , Casal, T. G. D. , Coccia, A. , Davidson, M. , Di Bella, A. , Fettweis, X. , Forsberg, R. , Helm, V. ![]() Surface Melting Drives Fluctuations in Airborne Radar Penetration in West Central Greenland ,
Geophysical Research Letters,
47
(17),
e2020GL088293
.
doi:https://doi.org/10.1029/2020GL088293
, hdl:10013/epic.05040821-dd2e-414e-b932-d13a445ac8ca
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Article
Krieger, L. , Strößenreuther, U. , Helm, V. ![]() Synergistic Use of Single-Pass Interferometry and Radar Altimetry to Measure Mass Loss of NEGIS Outlet Glaciers between 2011 and 2014 ,
Remote Sensing,
12
(6),
p. 996
.
doi:https://doi.org/10.3390/rs12060996
, hdl:10013/epic.6af8354f-b67b-4675-b759-d03499893584
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Article
Franke, S. ![]() ![]() ![]() ![]() ![]() ![]() Bed topography and subglacial landforms in the onset region of the Northeast Greenland Ice Stream ,
Annals of Glaciology,
61
(81),
pp. 143-153
.
doi:https://doi.org/10.1017/aog.2020.12
, hdl:10013/epic.b1caa2bd-9f06-4fef-8438-f165a2c84e39
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Article
Shepherd, A. , Ivins, E. , Rignot, E. , Smith, B. , van den Broeke, M. , Velicogna, I. , Whitehouse, P. , Briggs, K. , Joughin, I. , Krinner, G. , Nowicki, S. , Payne, T. , Scambos, T. , Schlegel, N. , A, G. , Agosta, C. , Ahlstrøm, A. , Babonis, G. , Barletta, V. R. , Bjørk, A. A. , Blazquez, A. , Bonin, J. , Colgan, W. , Csatho, B. , Cullather, R. , Engdahl, M. E. , Felikson, D. , Fettweis, X. , Forsberg, R. , Hogg, A. E. , Gallee, H. , Gardner, A. , Gilbert, L. , Gourmelen, N. , Groh, A. , Gunter, B. , Hanna, E. , Harig, C. , Helm, V. ![]() ![]() ![]() Mass balance of the Greenland Ice Sheet from 1992 to 2018 ,
Nature,
579
(7798),
pp. 233-239
.
doi:https://doi.org/10.1038/s41586-019-1855-2
, hdl:10013/epic.e009a4d5-e81a-423d-b650-eaca4d9a3449
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Article
Morlighem, M. , Rignot, E. , Binder, T. , Blankenship, D. , Drews, R. , Eagles, G. ![]() ![]() ![]() ![]() ![]() ![]() Deep glacial troughs and stabilizing ridges unveiled beneath the margins of the Antarctic ice sheet ,
Nature Geoscience,
13
,
pp. 132-137
.
doi:https://doi.org/10.1038/s41561-019-0510-8
, hdl:10013/epic.4e481a2c-cfab-47f1-843a-27ddc0d83ae0
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Article
Meloni, M. , Bouffard, J. , Parrinello, T. , Dawson, G. , Garnier, F. , Helm, V. ![]() ![]() ![]() CryoSat Ice Baseline-D validation and evolutions ,
The Cryosphere,
14
(6),
pp. 1889-1907
.
doi:https://doi.org/10.5194/tc-14-1889-2020
, hdl:10013/epic.17ae3518-4f03-485c-b4d7-506ab900a023
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Article
Neckel, N. ![]() ![]() ![]() ![]() Seasonal Observations at 79°N Glacier (Greenland) From Remote Sensing and in situ Measurements ,
Frontiers in Earth Science,
8
,
p. 142
.
doi:https://doi.org/10.3389/feart.2020.00142
, hdl:10013/epic.99ee180d-a69b-4b0a-92e2-af19767fee8f
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Article
Antonova, S. ![]() ![]() ![]() Estimating tree height from TanDEM-X data at the northwestern Canadian treeline ,
Remote Sensing of Environment,
231
.
doi:https://doi.org/10.1016/j.rse.2019.111251
, hdl:10013/epic.6478967e-aa02-4a25-ad83-2a554b58b229
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Article
Rückamp, M. ![]() ![]() ![]() ![]() Calving Induced Speedup of Petermann Glacier ,
Journal of Geophysical Research-Earth Surface,
124
,
pp. 216-228
.
doi:https://doi.org/10.1029/2018JF004775
, hdl:10013/epic.f4400cbb-57b1-4a23-8a02-fc8a0a4c24b5
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Article
Humbert, A. , Steinhage, D. ![]() ![]() ![]() ![]() Missing evidence of widespread subglacial lakes at Recovery Glacier, Antarctica ,
Journal of Geophysical Research: Earth Surface,
123
,
pp. 2802-2826
.
doi:https://doi.org/10.1029/2017JF004591
, hdl:10013/epic.2cfa7ae5-c211-47d2-9a82-f9e136d64478
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Article
Zhang, B. , Zhang, E. , Liu, L. , Khan, S. A. , van Dam, T. , Yao, Y. , Bevis, M. and Helm, V. ![]() Geodetic measurements reveal short-term changes of glacial mass near Jakobshavn Isbræ (Greenland) from 2007 to 2017 ,
Earth and Planetary Science Letters,
503
,
pp. 216-226
.
doi:https://doi.org/10.1016/j.epsl.2018.09.029
, hdl:10013/epic.f8a92688-0178-4d94-bc9d-be80308d9a57
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Article
Sandberg Sørensen, L. , Simonsen, S. , Langley, K. , Gray, L. , Helm, V. ![]() Validation of CryoSat-2 SARIn Data over Austfonna Ice Cap Using Airborne Laser Scanner Measurements ,
Remote Sensing,
10
(9),
p. 1354
.
doi:https://doi.org/10.3390/rs10091354
, hdl:10013/epic.c8e347b9-8135-42bb-83ab-c3a13dd4822f
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Article
The IMBIE team, Shepherd, A. , Sasgen, I. ![]() ![]() Mass balance of the Antarctic Ice Sheet from 1992 to 2017 ,
Nature,
558
(7709),
pp. 219-222
.
doi:https://doi.org/10.1038/s41586-018-0179-y
, hdl:10013/epic.7f0d293c-6cf4-4659-827e-d2a3b39aebfb
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Article
Shepherd, A. , Ivins, E. , Rignot, E. , Smith, B. , van den Broeke, M. , Velicogna, I. , Whitehouse, P. , Briggs, K. , Joughin, I. , Krinner, G. , Nowicki, S. , Payne, T. , Scambos, T. , Schlegel, N. , A, G. , Agosta, C. , Ahlstrøm, A. , Babonis, G. , Barletta, V. , Blazquez, A. , Bonin, J. , Csatho, B. , Cullather, R. , Felikson, D. , Fettweis, X. , Forsberg, R. , Gallee, H. , Gardner, A. , Gilbert, L. , Groh, A. , Gunter, B. , Hanna, E. , Harig, C. , Helm, V. ![]() ![]() ![]() Mass balance of the Antarctic Ice Sheet from 1992 to 2017 ,
Nature,
558
(7709),
pp. 219-222
.
doi:https://doi.org/10.1038/s41586-018-0179-y
, hdl:10013/epic.58ba5281-747b-44e4-9497-77af46fa3069
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Article
King, J. , Skourup, H. , Hvidegaard, S. M. , Rösel, A. , Gerland, S. , Spreen, G. , Polashenski, C. , Helm, V. ![]() Comparison of Freeboard Retrieval and Ice Thickness Calculation From ALS, ASIRAS, and CryoSat-2 in the Norwegian Arctic to Field Measurements Made During the N-ICE2015 Expedition ,
Journal of Geophysical Research: Oceans,
123
(2),
pp. 1123-1141
.
doi:https://doi.org/10.1002/2017JC013233
, hdl:10013/epic.833f804b-dfe8-4605-84d6-aedc6bfca636
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Article
Karlsson, N. B. , Binder, T. , Eagles, G. ![]() ![]() ![]() Glaciological characteristics in the Dome Fuji region and new assessment for “Oldest Ice” ,
The Cryosphere,
12
(7),
pp. 2413-2424
.
doi:https://doi.org/10.5194/tc-12-2413-2018
, hdl:10013/epic.c347a7b3-cc66-431d-a41a-4494e50a0baf
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Article
Kjær, K. H. , Larsen, N. K. , Binder, T. , Bjørk, A. A. , Eisen, O. ![]() ![]() A large impact crater beneath Hiawatha Glacier in northwest Greenland ,
Science Advances,
4
(11),
eaar8173
.
doi:https://doi.org/10.1126/sciadv.aar8173
, hdl:10013/epic.df3645ba-80d7-477b-ba57-1df014f8de5f
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Article
Berger, S. , Drews, R. , Helm, V. ![]() Detecting high spatial variability of ice shelf basal mass balance, Roi Baudouin Ice Shelf, Antarctica ,
The Cryosphere,
11
(6),
pp. 2675-2690
.
doi:https://doi.org/10.5194/tc-11-2675-2017
, hdl:10013/epic.c484abdf-a73b-4707-80cf-acc88cad573f
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Article
Obu, J. , Lantuit, H. ![]() ![]() ![]() ![]() ![]() Coastal erosion and mass wasting along the Canadian Beaufort Sea based on annual airborne LiDAR elevation data ,
Geomorphology,
293
,
pp. 331-346
.
doi:https://doi.org/10.1016/j.geomorph.2016.02.014
, hdl:10013/epic.47349
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Article
Schwegmann, S. , Rinne, E. , Ricker, R. ![]() ![]() ![]() About the consistency between Envisat and CryoSat-2 radar freeboard retrieval over Antarctic sea ice ,
Cryosphere
.
doi:https://doi.org/10.5194/tc-10-1415-2016
, hdl:10013/epic.48202
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Article
Martín-Español, A. , Zammit-Mangion, A. , Clarke, P. J. , Flament, T. , Helm, V. ![]() Spatial and temporal Antarctic Ice Sheet mass trends, glacio-isostatic adjustment, and surface processes from a joint inversion of satellite altimeter, gravity, and GPS data ,
Journal of Geophysical Research: Earth Surface,
121
(2),
pp. 182-200
.
doi:https://doi.org/10.1002/2015JF003550
, hdl:10013/epic.48375
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Article
Radosavljevic, B. ![]() ![]() ![]() ![]() ![]() Erosion and Flooding—Threats to Coastal Infrastructure in the Arctic: A Case Study from Herschel Island, Yukon Territory, Canada ,
Estuaries and Coasts,
pp. 1-16
.
doi:https://doi.org/10.1007/s12237-015-0046-0
, hdl:10013/epic.46279
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Article
Seehaus, T. , Marinsek, S. , Helm, V. ![]() Changes in ice dynamics, elevation and mass discharge of Dinsmoor–Bombardier–Edgeworth glacier system, Antarctic Peninsula ,
Earth and Planetary Science Letters,
427
,
125 - 135
.
doi:https://doi.org/10.1016/j.epsl.2015.06.047
, hdl:10013/epic.46032
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Article
Ricker, R. ![]() ![]() ![]() Impact of snow accumulation on CryoSat-2 range retrievals over Arctic sea ice: An observational approach with buoy data ,
Geophysical Research Letters
.
doi:https://doi.org/10.1002/2015GL064081
, hdl:10013/epic.45726
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Article
Price, D. , Beckers, J. M. , Ricker, R. ![]() ![]() ![]() Evaluation of CryoSat-2 derived sea-ice freeboard over fast ice in McMurdo Sound, Antarctica ,
Journal of Glaciology,
61
(226),
pp. 285-300
.
doi:https://doi.org/10.3189/2015JoG14J157
, hdl:10013/epic.45308
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Article
Ricker, R. ![]() ![]() Impact of snow accumulation on CryoSat-2 range retrievals over Arctic sea ice: An observational approach with buoy data ,
Geophysical Research Letters,
42
(11),
pp. 4447-4455
.
doi:https://doi.org/10.1002/2015GL064081
, hdl:10013/epic.46821
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|
Article
Humbert, A. , Steinhage, D. ![]() ![]() On the link between surface and basal structures of the Jelbart Ice Shelf, Antarctica ,
Journal of Glaciology,
61
(229),
pp. 975-986
.
doi:https://doi.org/10.3189/2015JoG15J023
, hdl:10013/epic.46208
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Article
Ricker, R. ![]() ![]() ![]() Sensitivity of CryoSat-2 Arctic sea-ice freeboard and thickness on radar-waveform interpretation ,
The Cryosphere,
8
(4),
pp. 1607-1622
.
doi:https://doi.org/10.5194/tc-8-1607-2014
, hdl:10013/epic.44049
|
|
Article
Helm, V. ![]() Elevation and elevation change of Greenland and Antarctica derived from CryoSat-2 ,
The Cryosphere,
8
(4),
pp. 1539-1559
.
doi:https://doi.org/10.5194/tc-8-1539-2014
, hdl:10013/epic.44098
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Article
HAWLEY, R. L. , BRANDT, O. , DUNSE, T. , HAGEN, J. O. , Helm, V. ![]() Using airborne Ku-band altimeter waveforms to investigate winter accumulation and glacier facies on Austfonna, Svalbard ,
Journal of Glaciology,
59
(217),
pp. 893-899
.
doi:https://doi.org/10.3189/2013JoG13J051
, hdl:10013/epic.42037
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Article
Helm, V. ![]() ![]() ![]() Validierung von CryoSat-2 Datenprodukten – Genauigkeit und Eindringverhalten ,
Rundtischgespräch: Georadar - Erfahrungen und Perspektiven, Freiberg . 6. + 7. Okt. 2011, Mitteilungen Sonderband I/2011
.
hdl:10013/epic.39265
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Article
Willat, R. , Laxon, S. , Giles, K. , Cullen, R. , Haas, C. ![]() ![]() Ku-band radar penetration into snow cover on Arctic sea ice using airborne data ,
Annals of Glaciology,
52
(57),
pp. 197-205
.
hdl:10013/epic.37028
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Article
de la Peña, S. , Nienow, P. , Shepherd, A. , Helm, V. ![]() Spatially extensive estimates of annual accumulation in the dry snow zone of the Greenland Ice Sheet determined from radar altimetry ,
The Cryosphere 4,
pp. 467-474
.
doi:https://doi.org/10.5194/tc-4-467-2010
, hdl:10013/epic.36407
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Article
Hvidegaard, S. M. , Forsberg, R. , Helm, V. ![]() ![]() ![]() CRYOVEX 2008 - Final Report ,
DTU Space, Technical Report 2/2009.
.
hdl:10013/epic.35790
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Article
Helm, V. ![]() ![]() CryoVEx08/09-Antarctica Data Acquisition and Final Processing Report ,
Alfred Wegener Institute, Bremerhaven, Germany.
.
hdl:10013/epic.35779
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Article
Hawley, R. L. , Sheperd, A. , Cullen, R. , Helm, V. ![]() Ice-sheet elevations from across-track processing of airborne interferometric radar altimetry ,
Geophysical Research Letters.,
36
(L22501)
.
doi:https://doi.org/10.1029/2009GL040416
, hdl:10013/epic.33644
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Article
Drews, R. , Rack, W. , Wesche, C. ![]() ![]() A spatially adjusted elevation model in Dronning Maud Land, Antarctica, based on differential SAR Interferometry ,
IEEE Transactions on Geoscience and Remote Sensing,
47
(8),
pp. 2501-2509
.
doi:https://doi.org/10.1109/TGRS.2009.2016081
, hdl:10013/epic.33171
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Article
Dunse, T. , Eisen, O. ![]() ![]() ![]() Characteristics and small-scale variability of GPR signals and their relation to snow accumulation in Greenland's percolation zone ,
Journal of Glaciology,
54
(185),
pp. 333-342
.
hdl:10013/epic.31451
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Article
Helm, V. ![]() ![]() CryoVEx 2007 - Data Acquisition and Final Processing Report ,
Alfred Wegener Institute, Bremerhaven, Germany.
.
hdl:10013/epic.35791
|
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Article
Stenseng, L. , Hvidegaard, S. M. , Skourup, H. , Forsberg, R. , Andersen, C. J. , Hanson, S. , Cullen, R. and Helm, V. ![]() Airborne Lidar and Radar Measurements In and Around Greenland CryoVEx 2006 ,
Danish National Space Center Technical Report 9
.
hdl:10013/epic.33645
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|
Article
Helm, V. ![]() Winter accumulation in the percolation zone of Greenland measured by airborne radar altimeter ,
Geophys. Res. Lett, 34, L06501.
.
doi:https://doi.org/10.1029/2006GL029185
, hdl:10013/epic.27029
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Article
Helm, V. ![]() ![]() ![]() CryoVEx 2004 and 2005 (BoB) data acquisition and final report ,
Alfred Wegener Institute, Bremerhaven, Germany.
.
hdl:10013/epic.34417
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Article
Jokat, W. ![]() ![]() ![]() Marine Geophysics, The Expedition ARKTIS XIX/4 of the Research Vessel POLARSTERN in 2003, Reports of Legs 4a and 4b ,
Berichte zur Polar- und Meeresforschung,
475
,
pp. 11-37
.
hdl:10013/epic.21300
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Article
Jokat, W. ![]() ![]() ![]() Geophysical investigations ,
Die Expedition ARKTIS XVIII/2 mit FS Polarstern, 2002, Berichte zur Polarforschung,
449
,
pp. 8-32
.
hdl:10013/epic.19662
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Inbook
Ricker, R. ![]() ![]() ![]() Classification of CryoSat-2 Radar Echoes / Lohmann, G. ![]() ![]() ![]()
In: Towards an Interdisciplinary Approach in Earth System Science,
(Springer Earth System Sciences),
Heidelberg [u.a.],
Springer International Publishing,
251 p.,
ISBN: 978-3-319-13864-0
.
doi:https://doi.org/10.1007/978-3-319-13865-7_17
, hdl:10013/epic.45046
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Thesis
-PhD
Helm, V. ![]() Airborne SAR / Interferometric Radar Altimeter System (ASIRAS) - Kalibrierung, Validierung und Interpretation der Messergebnisse ,
PhD thesis,
Universittät Bremen.
hdl:10013/epic.33643
|
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Thesis
-Diplom
Helm, V. ![]() Die Struktur des Kontinentalrandes im Gebiet des Larsenschelfes, Antarktische Halbinsel ,
Diplom thesis,
Technische Universität Bergakademie Freiberg.
hdl:10013/epic.28534
|
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Conference
-Poster
Franke, S. ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Ice flow and the conditions of the ice-bed interface at the onset of the Northeast Greenland Ice Stream ,
AGU Fall Meeting 2020 - Online Everywhere,
Online,
1 December 2020 - 17 December 2020
.
hdl:10013/epic.e28176e6-d09b-4413-8e33-bb41e4011e10
|
|
Conference
-Talk
Franke, S. ![]() ![]() ![]() ![]() ![]() ![]() Folded ice stratigraphy in North East Greenland: A three dimensional structural analysis ,
ESA - 2020 European Polar Science Week,
Virtual Event,
26 October 2020 - 30 October 2020
.
hdl:10013/epic.79970606-2e4d-4b7a-b1ad-3a5c401b512c
|
|
Conference
-Talk
Koch, I. , Drews, R. , Jansen, D. ![]() ![]() ![]() ![]() Ice shelf internal reflection horizons reveal past dynamics and oceanic melt ,
FRISP 2020 - 34th Forum for Research into Ice Shelf Processes,
Online,
16 June 2020 - 25 June 2020
.
hdl:10013/epic.83c07012-a04c-41e9-999b-82da018d2d4e
|
|
Conference
-Talk
Jansen, D. ![]() ![]() ![]() ![]() ![]() ![]() ![]() 3D-Structure ofNEGIS shearmarginsfromradarstratigraphy ,
EGU General Assembly 2020 | Sharing Geoscience Online,
4 May 2020 - 8 May 2020
.
doi:https://doi.org/10.5194/egusphere-egu2020-20424
, hdl:10013/epic.9dcf69cd-603d-45c2-a334-209ba405b392
|
|
Conference
-Poster
Jansen, D. ![]() ![]() ![]() ![]() ![]() Deformation structures at the margins of ice streams ,
80. Jahrestagung der Deutschen Geophysikalischen Gesellschaft,
München, Germany,
23 March 2020 - March 2020
.
hdl:10013/epic.7dcb8abc-41bd-483a-8fe3-2aacb17af03e
|
|
Conference
-Poster
Jansen, D. ![]() ![]() ![]() ![]() An ice stream margin as seen with high resolution radar ,
IASC Workshop on the Dynamics; Mass Budget of Arctic Glaciers & the ASC Network on Arctic Glaciology Annual Meeting,
28 January 2020 - 30 January 2020
.
hdl:10013/epic.8b7f5ced-1ea3-4bc6-9108-aaa09d717107
|
|
Conference
-Talk
Franke, S. ![]() ![]() ![]() ![]() ![]() Bedrock Topography and Subglacial Landforms of the North East Greenland Ice Stream ,
EastGRIP Steering Committee Meeting, Copenhagen, Denmark.,
Copenhagen, Denmark,
November 2019 - unspecified
.
hdl:10013/epic.7abf3e41-342e-4b9d-9453-2c8b59235881
|
|
Conference
-Talk
Eisen, O. ![]() ![]() ![]() ![]() ![]() AWI’s airborne Ultra-Wideband Radar for sounding and imaging of ice sheets and shelves ,
IGS Symposium Five Decades of Radioglaciology,
Stanford, California, USA,
8 July 2019 - 12 July 2019
.
hdl:10013/epic.74d32b03-de27-4eb4-a069-9c1f4a75bb54
|
|
Conference
-Keynote
MacGregor, J. , Fahnestock, M. , Binder, T. , Eisen, O. ![]() ![]() The ultrawideband airborne radar survey of Hiawatha Glacier and its implications for future investigations of ice-sheet margins ,
IGS Symposium Five Decades of Radioglaciology,
Stanford, California, USA,
8 July 2019 - 12 July 2019
.
hdl:10013/epic.e22b3fc3-23c9-415b-9ba9-0810ce2cd696
|
|
Conference
-Poster
Franke, S. ![]() ![]() ![]() ![]() ![]() Ice Thickness and Bed Conditions of the North East Greenland Ice Stream ,
IGS 2019 Five Decades of Radioglaciology,
Stanford, California, USA,
July 2019 - unspecified
.
hdl:10013/epic.fafc8490-bd3d-4204-8e74-aae22519ceb4
|
|
Conference
-Talk
Jansen, D. ![]() ![]() ![]() ![]() ![]() Signature of NEGIS shear margins in radar stratigraphy ,
IGS Symposium Five Decades of Radioglaciology,
Stanford, USA,
8 July 2019 - 12 July 2019
.
hdl:10013/epic.d35f8a2d-62af-4329-a04d-416e9cc2d228
|
|
Conference
-Talk
Nitze, I. ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Airborne LiDAR and stereo-photogrammetric characterization of permafrost landscapes and thaw subsidence ,
4th Helmholtz Data Science Symposium,
Helmholtz Zentrum Geesthacht, Germany,
20 June 2019 - 21 June 2019
.
hdl:10013/epic.d4a469c3-f249-4018-aa67-eb485759bb3f
|
|
Conference
-Poster
Matsuoka, K. , Van Liefferinge, B. , Binder, T. , Eisen, O. ![]() ![]() ![]() Bed diagnosis in the Dome Fuji region, East Antarctica, using airborneradar data and englacial attenuation estimates ,
EGU General Assembly,
Vienna,
7 April 2019 - 12 April 2019
.
hdl:10013/epic.d440bb01-0132-4e98-9a0e-24b0446da2ed
|
|
Conference
-Poster
Berger, S. ![]() ![]() ![]() ![]() Detecting and monitoring ice-shelf basal mass balance in Dronning Maud Land, East Antarctica ,
EGU General Assembly,
Vienna,
7 April 2019 - 12 April 2019
.
hdl:10013/epic.145178fb-0220-4f24-a161-edd946290906
|
|
Conference
-Talk
Sobiech-Wolf, J. , Ullmann, T. , Kunz, J. , Kneisel, C. , Steinhage, D. ![]() ![]() Detektion der Auftauschicht in Permafrostgebieten mittels flugzeuggestütztem GPR ,
79. Jahrestagung DGG,
Braunschweig,
4 March 2019 - 7 March 2019
.
hdl:10013/epic.4e49867a-7a43-4419-8ea4-fb258da0e02c
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Conference
-Talk
Grosse, G. ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Airborne Remote Sensing of Permafrost Landscape Dynamics ,
AWI Kolloqium,
Bremerhaven,
13 February 2019 - 13 February 2019
.
hdl:10013/epic.881abe87-1da1-4fbf-ba02-8c230a429b18
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Conference
-Talk
Franke, S. ![]() ![]() ![]() ![]() ![]() ![]() First results of the AWI-Polar 6 airborne radio echo sounding survey around EGRIP drill site ,
Eastgrip Steering Committee Meeting 2018, Copenhagen, Denmark,
12 November 2018 - 16 November 2018
.
hdl:10013/epic.75158506-3dfc-446c-a15f-4a1cabb57d60
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Conference
-Poster
Antonova, S. , Höfle, B. , Thiel, C. , Marx, S. , Anders, K. , Helm, V. ![]() ![]() Estimation of forest properties in a treeline zone using TanDEM-X and airborne laser scanning data ,
5th European Conference on Permafrost (EUCOP 2018),
Chamonix, France,
23 June 2018 - 1 July 2018
.
hdl:10013/epic.abf71925-2556-47b4-bf56-cf74a08a0fb2
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Conference
-Talk
Berger, S. ![]() ![]() ![]() ![]() Detecting high spatial variability of ice-shelf basal mass balance ,
EGU General Assembly,
Vienna,
8 April 2018 - 13 April 2018
.
hdl:10013/epic.8d47965b-495c-4400-8c71-4ef6174c040d
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Conference
-Talk
Karlsson, N. B. , Binder, T. , Eagles, G. ![]() ![]() ![]() Glaciological characteristics in the Dome Fuji region and new assessment for 1.5 Ma old ice ,
EGU General Assembly,
Vienna,
8 April 2018 - 13 April 2018
.
hdl:10013/epic.3a9106cd-a83e-435f-9b6a-c2a894f53a38
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Conference
-Invited talk
Eisen, O. ![]() ![]() ![]() ![]() Peering into ice sheets: the use of AWI’s new radar magnifying glass ,
Kolloquium DLR Institut für Hochfrequenztechnik und Radarsysteme
.
hdl:10013/epic.2a4ce64f-4f0f-4792-aa4e-983bc3f5697c
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Conference
-Poster
Antonova, S. , Anders, K. , Helm, V. ![]() ![]() Bistatic coherence from CoSSC TanDEM-X data for tree height estimation in the Canadian Subarctic ,
5th HGF Alliance “Remote Sensing and Earth System Dynamics” Week,
26 June 2017 - 30 June 2017
.
hdl:10013/epic.51387
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|
Conference
-Talk
Drews, R. , Mayer, C. , Eisen, O. ![]() ![]() ![]() Fun at Antarctic grounding lines: Ice-shelf channels and sediment transport ,
EGU General Assembly,
Vienna,
23 April 2017 - 28 April 2017
.
hdl:10013/epic.7f3243c8-40b5-4436-81e4-48df805f2ba5
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|
Conference
-Poster
Radosavljevic, B. ![]() ![]() ![]() ![]() ![]() Threats to Coastal Infrastructure from Erosion and Flooding: A Case Study from Herschel Island, Yukon Territory, Canada ,
11th International Conference on Permafrost,
Potsdam, Germany,
20 June 2016 - 24 June 2016
.
hdl:10013/epic.48146
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|
Conference
-Talk
Wouters, B. , Bamber, J. , Ligtenberg, S. , Kuipers-Munneke, P. , van den Broeke, M. , Helm, V. ![]() A 15 year continuous time series of mass trends for the Greenland ice sheet from satellite altimetry ,
ESA Living Planet Symposium,
Prague, Czech Republic,
9 May 2016 - 13 May 2016
.
hdl:10013/epic.48370
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Conference
-Talk
Sandberg Sørensen, L. , Baker, S. , Csatho, B. , Forsberg, R. , Gourmelen, N. , Helm, V. ![]() CryoSat Land Ice Product Validation within the CryoVal-LI project ,
ESA Living Planet Symposium,
Prague, Czech Republic,
9 May 2016 - 13 May 2016
.
hdl:10013/epic.48364
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Conference
-Talk
Knöfel, C. , Scheinert, M. , Schröder, L. , Strößenreuther, U. , Helm, V. ![]() CryoSat-2 calibration/validation in Antarctica: Quantifying uncertainties utilising different satellite, airborne and ground-based techniques ,
ESA Living Planet Symposium,
Prague, Czech Republic,
9 May 2016 - 13 May 2016
.
hdl:10013/epic.48363
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|
Conference
-Poster
Seehaus, T. , Marinsek, S. , Helm, V. ![]() ![]() Observation of Changes in Ice Dynamics at the northern Antarctic Peninsula ,
ESA Living Planet Symposium,
Prague, Czech Republic,
9 May 2016 - 13 May 2016
.
hdl:10013/epic.48367
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|
Conference
-Poster
Helm, V. ![]() Recent ice-volume and mass change of Greenland and Antarctica by CryoSat-2 altimetry ,
ESA Living Planet Symposium,
Prague, Czech Republic,
9 May 2016 - 13 May 2016
.
hdl:10013/epic.48368
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|
Conference
-Poster
Konrad, H. , Hogg, A. , Morris, L. , Smith, A. , Helm, V. ![]() ![]() Stratigraphy and surface accumulation variations on Pine Island Glacier, West Antarctica, from airborne, ground-based and satellite observations ,
ESA Living Planet Symposium,
Prague, Czech Republic,
9 May 2016 - 13 May 2016
.
hdl:10013/epic.48366
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|
Conference
-Poster
Hogg, A. , Shepherd, A. , Nagler, T. , Gilbert, L. , Wuite, J. , Muir, A. , Corr, H. , Steinhage, D. ![]() ![]() Utility of CryoSat-2 data for locating the ice sheet grounding line and determining ice shelf thickness: Final outcomes of the ESA STSE GLITter project ,
ESA Living Planet Symposium,
Prague, Czech Republic,
9 May 2016 - 13 May 2016
.
hdl:10013/epic.48369
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|
Conference
-Talk
Schröder, L. , Helm, V. ![]() Validation of CryoSat-2 products over the East Antarctica Ice Sheet ,
ESA Living Planet Symposium,
Prague, Czech Republic,
9 May 2016 - 13 May 2016
.
hdl:10013/epic.48365
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|
Conference
-Poster
Jansen, D. ![]() ![]() ![]() Observed rift propagation in the Larsen C Ice Shelf from Sentinel 1-A radar data ,
EGU General Assembly 2016,
Vienna, Austria,
17 April 2016 - 22 April 2016
.
hdl:10013/epic.47801
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|
Conference
-Poster
Ricker, R. ![]() ![]() ![]() Arctic and Antarctic Sea-Ice Thickness Derived from CryoSat-2, SMOS, and Envisat ,
EGU 2016,
Vienna,
18 April 2016 - 22 April 2016
.
hdl:10013/epic.47758
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|
Conference
-Poster
Shfaqat, A. K. , Sasgen, I. ![]() ![]() Iceland hotspot track in southeast Greenland causes huge present-day vertical viscoelastic motion of the bedrock ,
EGU General Assembly 2016,
Vienna, Austria,
17 April 2016 - 22 April 2016
.
hdl:10013/epic.48372
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Conference
-Talk
Berger, S. , Drews, R. , Helm, V. ![]() Observing ice-shelf channels and basal melting from space ,
EGU General Assembly 2016,
Vienna, Austria,
17 April 2016 - 22 April 2016
.
hdl:10013/epic.48371
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|
Conference
-Invited talk
Ricker, R. ![]() ![]() ![]() ![]() Sea Ice Thickness obtained from Space ,
Ifremer colloquium,
Ifremer, Brest, France
.
hdl:10013/epic.7d787f23-8859-438f-9580-ee7f32cc9c4f
|
|
Conference
-Poster
Neckel, N. ![]() ![]() Near real time surface velocity measurements of North-East Greenland Ice Stream outlet glaciers from Sentinel-1A data ,
ESA Living Planet Symposium,
Prague, Czech Republic,
9 May 2016 - 13 May 2016
.
hdl:10013/epic.47918
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|
Conference
-Poster
Binder, T. , Eisen, O. ![]() ![]() ![]() Phase-sensitive radar on thick Antarctic ice – how well does it work? ,
EGU General Assembly 2016,
Vienna,
17 April 2016 - 22 April 2016
.
hdl:10013/epic.47755
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Conference
-Invited talk
Radosavljevic, B. ![]() ![]() ![]() ![]() ![]() Coastal Hazard Vulnerability Assessment: A Case Study of Erosion and Flooding on Herschel Island, Yukon Territory, Canada ,
AGU Fall Meeting,
San Francisco, California, USA,
14 December 2015 - 18 December 2015
.
hdl:10013/epic.46682
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|
Conference
-Invited talk
Ricker, R. ![]() ![]() ![]() The impact of the snow cover on sea-ice thickness products, retrieved by Ku band radar altimeters ,
AGU Fall Meeting,
San Francisco,
December 2015 - December 2015
.
hdl:10013/epic.62893cf9-1e04-4d46-ab04-fb87c40e0d3c
|
|
Conference
-Invited talk
Helm, V. ![]() Observing ice-volume change in Greenland and Antarctica using CryoSat-2 altimetry ,
IUGG,
Prague,
22 June 2015 - 2 July 2015
.
hdl:10013/epic.48359
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|
Conference
-Poster
Humbert, A. , Helm, V. ![]() ![]() ![]() How swampy is the base of Recovery Glacier, Antarctica? ,
International Symposium on Hydrology of Glaciers and Ice Sheets,
Iceland,
21 June 2015 - 26 June 2015
.
hdl:10013/epic.49352
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|
Conference
-Talk
Helm, V. ![]() ![]() ![]() ![]() Circular surface depression on Roi Baudoin Ice Shelf, Dronning Maud Land, East Antarctica - characteristics and possible origin ,
European Geophysical Union,
12 April 2015 - 15 April 2015
.
hdl:10013/epic.45044
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Conference
-Talk
Simonsen, S. B. , Sørensen, L. S. , Nilsson, J. , Helm, V. ![]() Validating Cryosat-2 elevation estimates with airborne laser scanner data for the Greenland ice sheet, Austfonna and Devon ice caps ,
EGU General Assembly 2015,
Vienna, Austria,
12 April 2015 - 17 April 2015
.
hdl:10013/epic.45313
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|
Conference
-Talk
Helm, V. ![]() CryoSat-2 QWG 6, Land Ice Validation ,
CryoSat-2 QWG 6,
Mullard Space Science Laboratory, Dorking, UK,
16 March 2015 - 19 March 2015
.
hdl:10013/epic.45314
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|
Conference
-Poster
Steinhage, D. ![]() ![]() ![]() New Insights in the Existence of Lakes Beneath the Recovery Glacier Drainage Basin, Antarctica ,
AGU Fall Meeting,
San Francisco,
15 December 2014 - 19 December 2014
.
hdl:10013/epic.49292
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Conference
-Talk
Hendricks, S. ![]() ![]() ![]() Uncertainties of Sea Ice Thickness from CryoSat-2 ,
International Sea Ice Concentration and Thickness Evaluation and Intercomparison Workshop,
University of Hamburg,
19 September 2014 - unspecified
.
hdl:10013/epic.45047
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|
Conference
-Poster
Obu, J. , Lantuit, H. ![]() ![]() ![]() ![]() Short-term geomorphic dynamics of the Yukon and Herschel Island coasts based on LIDAR DEMs from 2012 and 2013 ,
EUCOP4 European Conference on Permafrost,
Evora, Portugal,
19 June 2014 - 21 June 2014
.
hdl:10013/epic.43741
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|
Conference
-Talk
Obu, J. , Lantuit, H. ![]() ![]() ![]() ![]() Soil organic carbon and total nitrogen on the Herschel Island ,
CAPP workshop,
Stockholm University,
12 May 2014 - 14 May 2014
.
hdl:10013/epic.44435
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|
Conference
-Talk
Goeller, S. , Thoma, M. ![]() ![]() ![]() Dynamics and mass export of the Ross Ice Streams in West Antarctica, triggered by subglacial hydrological processes ,
REKLIM Workshop,
Bad Salzschlirf, Germany,
31 March 2014 - 2 April 2014
.
hdl:10013/epic.43383
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|
Conference
-Talk
Obu, J. , Lantuit, H. ![]() ![]() ![]() ![]() ![]() ![]() Organic carbon and nitrogen release by coastal erosion in the western Canadian Arctic ,
ESA DUE Permafrost Workshop,
ESA ESRIN, Frascati (Rome), Italy,
11 February 2014 - 13 February 2014
.
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Conference
-Poster
Helm, V. ![]() ![]() Ku-Band penetration obtained from airborne radar and laser altimetry and TerraSAR-X in a blue ice area in Antarctica ,
Earth Observation and Cryosphere Science Conference,
13 November 2012 - 16 November 2012
.
hdl:10013/epic.39703
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Conference
-Talk
Hendricks, S. ![]() ![]() ![]() CryoSat-2 Sea-Ice Freeboard and Thickness ,
ESA Living Planet Symposium,
Edinburgh,
9 September 2013 - 13 September 2013
.
hdl:10013/epic.42309
|
|
Conference
-Talk
Hendricks, S. ![]() ![]() ![]() Mass balance of sea ice in both hemispheres ,
CryoSat Third User Workshop,
Dresden,
12 March 2013 - 14 March 2013
.
hdl:10013/epic.42310
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|
Conference
-Talk
Ricker, R. ![]() ![]() ![]() Comparison Of Sea-Ice Freeboard And Thickness Distributions From Aircraft Data And Cryosat-2 ,
Earth Observation & Cryospehere Science Conference,
ESRIN, Frascati, Italy,
13 November 2012 - 16 November 2012
.
hdl:10013/epic.40969
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Conference
-Talk
Langley, K. , Patel, A. , Hawley, R. , Dunse, T. , Hagen, J. , Kohler, J. , Skourup, H. , Gogineni, S. , Forsström, S. , Eiken, T. , Leuschen, C. and Helm, V. ![]() CryoSat cal/val activities on Austfonna – Part II: Ground-based measurements using a Ku-band radar, for validation of the CryoSat-2 SIRAL data ,
Earth Observation and Cryosphere Science Conference,
13 November 2012 - 16 November 2012
.
hdl:10013/epic.39705
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Conference
-Talk
Wang, C. , Renner, A. , Gerland, S. , Anfinsen, S. , Brandt, O. , Doulgeris, A. , Dumont, M. , Eltoft, T. , Fors, A. , Granskog, M. , Haapala, J. , Helm, V. ![]() ![]() In-situ calibration and validation of CryoSat-2 observations over Arctic first year sea ice north of Svalbard ,
Earth Observation and Cryosphere Science Conference,
13 November 2012 - 16 November 2012
.
hdl:10013/epic.39704
|
|
Conference
-Poster
Ricker, R. ![]() ![]() ![]() A Comparison of Sea-Ice Freeboard Distributions from Aircraft Data and CryoSat-2 ,
20 Years of Progress in Radar Altimetry,
Venice, Italy,
24 September 2012 - 29 September 2012
.
hdl:10013/epic.40122
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|
Conference
-Poster
Helm, V. ![]() ![]() ![]() CryoSat Cal/Val – Accuracy and Penetration Depth of the CryoSat SARIn product ,
20 Years of Progress in Radar Altimetry,
Venice,
24 September 2012 - 29 September 2012
.
hdl:10013/epic.39707
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|
Conference
-Conference paper
Helm, V. ![]() ![]() CRYOSAT Cal/Val activities using the airborne ASIRAS Ku-band system ,
IGARSS 2012,
München,
22 July 2012 - 27 July 2012
.
hdl:10013/epic.39706
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|
Conference
-Invited talk
Helm, V. ![]() ![]() Eine eisige Mission - Mit CryoSat-2 den Änderungen in den Polargebieten auf der Spur ,
Die Erde im Visier - Sonderausstellung,
GEOMAR, Kiel,
15 May 2012 - 24 August 2012
.
hdl:10013/epic.39702
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Conference
-Talk
Helm, V. ![]() CryoVEx 2011 - Final Meeting ,
CryoVEx 2011 - Final Meeting,
ESA - ESRIN, Frascati, Italy
.
hdl:10013/epic.38736
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Conference
-Talk
Hendricks, S. ![]() ![]() ![]() CryoVEx 2011, Airborne Validation Campaign ,
CryoVEx 2011 Final Meeting
.
hdl:10013/epic.38684
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Conference
-Talk
Helm, V. ![]() ![]() CryoVExANT-2011 - Data Acquisition Report ,
CryoVEx 2011 - Final Meeting,
ESA - ESRIN, Frascati, Italy
.
hdl:10013/epic.38737
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Conference
-Talk
Helm, V. ![]() ![]() Validierung von CryoSat-2 -- Genauigkeit und Eindringverhalten ,
9. RTG Georadar,
Freiberg, Germany
.
hdl:10013/epic.38735
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Conference
-Talk
Helm, V. ![]() ![]() Accuracy of surface elevation derived from ASIRAS and CryoSat ,
2nd CryoSat Validation workshop.
.
hdl:10013/epic.36855
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Conference
-Invited talk
Krumpen, T. ![]() ![]() ![]() ![]() ![]() ![]() Calibration and Validation of CryoSat-2 and TanDEM-X elevation products of land and sea ice by using airborne and field data ,
TanDEM-X Science MeetingFeb. 2011.
.
hdl:10013/epic.37105
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Conference
-Poster
Hendricks, S. ![]() ![]() ![]() Ku-Band radar penetration into Snow over Arctic sea ice ,
2nd CryoSat Validation Workshop.
.
hdl:10013/epic.36883
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Conference
-Talk
Hendricks, S. ![]() ![]() ![]() Validation of CryoSat-2 sea ice freeboard retrievals by ground and airborne surveys ,
IUGG XXV General Assembly, Melbourne.
.
hdl:10013/epic.38285
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Conference
-Invited talk
Helm, V. ![]() CryoSat-2, ESA's Mission to Ice ,
Koordinations-Workshop SPP 1257, Dipperz, Germany.
.
hdl:10013/epic.35778
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Conference
-Conference paper
Hendricks, S. ![]() ![]() ![]() Effects of Surface Roughness on Sea Ice Freeboard Retrieval with an Airborne Ku-Band SAR Radar Altimeter ,
Geoscience and Remote Sensing (IGARSS 2010), IEEE International Symposium.
.
hdl:10013/epic.38266
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Conference
-Conference paper
Sandberg Sørensen, L. , Stenseng, L. , Simonsen, S. B. , Forsberg, R. , Poulsen, S. K. and Helm, V. ![]() Greenland Ice Sheet changes from space using laser, radar and gravity. ,
ESA Living Planet 2010, ESA Special Publication SP-686.
.
hdl:10013/epic.38270
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Conference
-Talk
Helm, V. ![]() ![]() ![]() Accuracy of surface elevation derived from ASIRAS ,
Joint CryoSat-IceSat Science Team meeting, Reykjavik, Iceland.
.
hdl:10013/epic.33472
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Conference
-Talk
Helm, V. ![]() Akkumulationsbestimmung mit Hilfe eines flugzeuggetragenen KU-Band-Radaraltimetersystems ,
Rundtisch-Gespräch Georadar (RTG-8), Freiberg, Germany.
.
hdl:10013/epic.33448
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Conference
-Talk
Helm, V. ![]() ![]() ![]() CryoSat-2 Cal/Val Aktivitäten über Landeis ,
CryoSat Nutzerworkshop, AWI Bremerhaven, Germany.
.
hdl:10013/epic.35774
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Conference
-Talk
Helm, V. ![]() CryoSat-2, ESA's Mission to Ice ,
Koordinations-Workshop SPP 1158, Hamburg, Germany.
.
hdl:10013/epic.33473
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Conference
-Talk
Helm, V. ![]() CryoVEx 2008 - Analysis of ASIRAS Level_1b product ,
CryoVEx 2008 Final Meeting, ESA - ESTEC, Noordweijk, The Netherlands.
.
hdl:10013/epic.33474
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Conference
-Talk
Helm, V. ![]() CryoVEx08/09 Antarctica - Final presentation ,
CryoVEx08/09 Antarctica Final meeting, ESA - ESTEC Noordweijk, The Netherlands.
.
hdl:10013/epic.33906
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Conference
-Talk
Hendricks, S. ![]() ![]() ![]() Freeboard and HEM sea ice thickness measurements in 2005, 2006 and 2008 ,
Joint CryoSat-IceSat Science Team Meeting, Reykjavik, Iceland.
.
hdl:10013/epic.33188
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Conference
-Talk
Hendricks, S. ![]() ![]() ![]() CryoVEx 2008: Airborne sea ice thickness campaign ,
CryoVEx 2008 Mid Term Review, Copenhagen.
.
hdl:10013/epic.33462
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Conference
-Poster
Wesche, C. ![]() ![]() ![]() ![]() Surface topography in the center of Dronning Maud Land, Antarctica, derived from airborne radar altimetry and ground based kinematic GPS measurements ,
General Assembly of the European Geosciences Union,
Vienna, Austria,
15 April 2007 - 20 April 2007
.
hdl:10013/epic.42129
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Conference
-Poster
Dunse, T. , Helm, V. ![]() ![]() ![]() The Cryosat land ice validation experiment 2004 Part II: Ground-based measurements of the firn structure using GPR ,
EGU General Assembly, Vienna, Austria 07 April 2006.
.
hdl:10013/epic.24939
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|
Conference
-Poster
Helm, V. ![]() The Cryosat land ice validation experiment CryoVex2004 Part I: ASIRAS vs. laser altimeter measurements ,
EGU General Assembly, Vienna, Austria 07 April 2006.
.
hdl:10013/epic.26981
|
|
Conference
-Poster
Helm, V. ![]() The Cryosat land ice validation experiment CryoVex2004 Part I: ASIRAS vs. laser altimeter measurements ,
66. Jahrestagung der Deutschen Geophysikalischen Gesellschaft, 6.-9. März, Bremen.
.
hdl:10013/epic.26982
|
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Conference
-Poster
Dunse, T. , Helm, V. ![]() ![]() The internal layering of snow along a section of the EGIG-line, western Greenland, derived from GPR and ASIRAS-measurements ,
66. Jahrestagung der Deutschen Geophysikalischen Gesellschaft, 6.-9. März, Bremen.
.
hdl:10013/epic.24938
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|
Conference
-Poster
Helm, V. ![]() ![]() The sedimentary structure of the continental slope in the area of Larsen shelf, Eastern margin of Antarctica ,
63. Jahrestagung der Deutschen Geophysikalischen Gesellschaft, 23.-28. März, Jena.
.
hdl:10013/epic.26984
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Miscellaneous
Hendricks, S. ![]() ![]() ![]() User Guide - AWI CryoSat-2 Sea Ice Thickness Data Product (v1.2)
[Miscellaneous]
hdl:10013/epic.48201
|
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Miscellaneous
Hendricks, S. ![]() ![]() ![]() ![]() SMOSice 2014: Data Acquisition Report ,
[Miscellaneous]
hdl:10013/epic.45054
|
|
PANGAEA Documentation
Rankl, M. , Braun, M. and Helm, V. ![]() TanDEM-X ice thickness dataset for Wilkins Ice Shelf, Antarctic Peninsula ,
Bremerhaven,
PANGAEA
.
hdl:10013/epic.44969
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