EPIC.awi.de
![]() | Up a level |
Article
Dallmayr, R. , Freitag, J. ![]() ![]() ![]() ![]() A dual-tube sampling technique for snowpack studies ,
Journal of Glaciology,
67
(261),
pp. 84-90
.
doi:https://doi.org/10.1017/jog.2020.85
, hdl:10013/epic.0f141618-3675-411c-991f-f335a04a34b7
|
|
Article
Weinhart, A. H. ![]() ![]() ![]() ![]() ![]() Representative surface snow density on the East Antarctic Plateau ,
The Cryosphere,
14
(11),
pp. 3663-3685
.
doi:https://doi.org/10.5194/tc-14-3663-2020
, hdl:10013/epic.cc875138-aea9-40b5-85ef-a6a633f71e38
|
|
Article
Hoffmann, K. , Fernandoy, F. , Meyer, H. ![]() ![]() Stable water isotopes and accumulation rates in the Union Glacier region, Ellsworth Mountains, West Antarctica, over the last 35 years ,
The Cryosphere,
14
(3),
pp. 881-904
.
doi:https://doi.org/10.5194/tc-14-881-2020
, hdl:10013/epic.e08a5db2-d826-4c39-b9e9-925883abc1d9
|
|
Article
Moser, D. E. ![]() ![]() ![]() Microstructure of Snow and Its Link to Trace Elements and Isotopic Composition at Kohnen Station, Dronning Maud Land, Antarctica ,
Frontiers in Earth Science,
8
,
p. 23
.
doi:https://doi.org/10.3389/feart.2020.00023
, hdl:10013/epic.77cce15f-b5e8-4471-ae62-178002fbda69
|
|
Article
Kokhanovsky, A. A. , Lamare, M. , Danne, O. , Brockmann, C. , Dumont, M. , Picard, G. , Arnaud, L. , Favier, V. , Jourdain, B. , Le Meur, E. , Di Mauro, B. , Aoki, T. , Niwano, M. , Rozanov, V. , Korkin, S. , Kipfstuhl, S. , Freitag, J. ![]() ![]() ![]() Retrieval of Snow Properties from the Sentinel-3 Ocean and Land Colour Instrument ,
Remote Sensing,
11
(19),
p. 2280
.
doi:https://doi.org/10.3390/rs11192280
, hdl:10013/epic.e3bcca1b-0f9e-4eb0-9637-b79affdca77b
|
|
Article
Schlegel, R. , Diez, A. , Löwe, H. , Mayer, C. , Lambrecht, A. , Freitag, J. ![]() ![]() Comparison of elastic moduli from seismic diving-wave and ice-core microstructure analysis in Antarctic polar firn ,
Annals of Glaciology,
60
(79),
pp. 220-230
.
doi:https://doi.org/10.1017/aog.2019.10
, hdl:10013/epic.96658a91-2ae5-4f2a-94a8-a7cd0bd9c009
|
|
Article
Schaller, C. F. , Freitag, J. ![]() ![]() Critical porosity of gas enclosure in polar firn independent of climate ,
Climate of the Past,
13
,
pp. 1685-1693
.
doi:https://doi.org/10.5194/cp-13-1685-2017
, hdl:10013/epic.f0a665ac-02f9-4c48-9cc1-a28795ddb0a6
|
|
Article
Münch, T. ![]() ![]() ![]() ![]() Constraints on post-depositional isotope modifications in East Antarctic firn from analysing temporal changes of isotope profiles ,
The Cryosphere,
11
(5),
pp. 2175-2188
.
doi:https://doi.org/10.5194/tc-11-2175-2017
, hdl:10013/epic.51602
|
|
Article
Carlsen, T. , Birnbaum, G. ![]() ![]() Comparison of different methods to retrieve optical-equivalent snow grain size in central Antarctica ,
The Cryosphere,
11
,
pp. 2727-2741
.
doi:https://doi.org/10.5194/tc-11-2727-2017
|
|
Article
Karlsson, N. B. , Eisen, O. ![]() ![]() ![]() Accumulation Rates during 1311–2011 CE in North-Central Greenland Derived from Air-Borne Radar Data ,
Frontiers in Earth Science,
4
,
p. 97
.
doi:https://doi.org/10.3389/feart.2016.00097
, hdl:10013/epic.48973
|
|
Article
Schaller, C. F. , Freitag, J. ![]() ![]() ![]() A representative density profile of the North Greenland snowpack ,
The Cryosphere,
10
(5),
pp. 1991-2002
.
doi:https://doi.org/10.5194/tc-10-1991-2016
, hdl:10013/epic.48741
|
|
Article
Münch, T. ![]() ![]() ![]() ![]() Regional climate signal vs. local noise: a two-dimensional view of water isotopes in Antarctic firn at Kohnen station, Dronning Maud Land ,
Climate of the Past,
12
,
pp. 1565-1581
.
doi:https://doi.org/10.5194/cp-12-1565-2016
, hdl:10013/epic.46413
|
|
Article
Ritter, F. , Steen-Larsen, H. C. , Werner, M. ![]() ![]() ![]() ![]() Isotopic exchange on the diurnal scale between near-surface snow and lower atmospheric water vapor at Kohnen station, East Antarctica ,
The Cryosphere,
10
,
pp. 1647-1663
.
doi:https://doi.org/10.5194/tc-10-1647-2016
, hdl:10013/epic.48316
|
|
Article
Laepple, T. ![]() ![]() ![]() Layering of surface snow and firn at Kohnen Station, Antarctica - noise or seasonal signal? ,
Journal of Geophysical Research: Earth Surface,
121
,
pp. 1849-1860
.
doi:https://doi.org/10.1002/2016JF003919
, hdl:10013/epic.48734
|
|
Article
Rhodes, R. H. , Faïn, X. , Brook, E. J. , McConnell, J. R. , Maselli, O. J. , Sigl, M. , Edwards, J. , Buizert, C. , Blunier, T. , Chappellaz, J. and Freitag, J. ![]() Local artifacts in ice core methane records caused by layered bubble trapping and in situ production: a multi-site investigation ,
Climate of the Past,
12
(4),
pp. 1061-1077
.
doi:https://doi.org/10.5194/cp-12-1061-2016
, hdl:10013/epic.49832
|
|
Article
Kronenberger, M. , Wirjadi, O. , Freitag, J. ![]() Gaussian curvature using fundamental forms for binary voxel data ,
Graphical Models,
82
,
pp. 123-136
.
doi:https://doi.org/10.1016/j.gmod.2015.06.009
, hdl:10013/epic.51086
|
|
Article
Christmann, J. , Müller, R. , Webber, K. , Isaia, D. , Schader, F. , Kipfstuhl, S. , Freitag, J. ![]() Measurement of fracture toughness of polycrystalline bubbly ice from an Antarctic ice core ,
Earth Syst. Sci. Data,
7
,
pp. 87-92
.
doi:https://doi.org/10.5194/essd-7-87-2015
, hdl:10013/epic.48956
|
|
Article
Freitag, J. ![]() ![]() ![]() Impurity-controlled densification: a new model for stratified polar firn ,
Journal of Glaciology,
59
(218),
pp. 1163-1169
.
doi:https://doi.org/10.3189/2013JoG13J042
, hdl:10013/epic.42658
|
|
Article
Hubbard, B. , Tison, J. L. , Philippe, M. , Heene, B. , Pattyn, F. , Malone, T. and Freitag, J. ![]() Ice shelf density reconstructed from optical televiewer borehole logging ,
Geophysical Research Letters,
40
(22),
pp. 5882-5887
.
doi:https://doi.org/10.1002/2013GL058023
, hdl:10013/epic.42690
|
|
Article
Freitag, J. ![]() ![]() Core-scale radioscopic imaging: a new method reveals density-calcium link in Antarctic firn ,
J. Glaciol.,
59
(218),
pp. 1009-1014
.
doi:https://doi.org/10.3189/2013JoG13J028
, hdl:10013/epic.42155
|
|
Article
Binder, T. , Garbe, C. S. , Wagenbach, D. , Freitag, J. ![]() Extraction and parametrization of grain boundary networks in glacier ice, using a dedicated method of automatic image analysis ,
Journal of Microscopy,
250
(2),
pp. 130-141
.
doi:https://doi.org/10.1111/jmi.12029
, hdl:10013/epic.41389
|
|
Article
Bendel, V. , Ueltzhöffer, K. J. , Freitag, J. ![]() High-resolution variations in size, number and arrangement of air bubbles in the EPICA DML (Antarcitca) ice core ,
Journal of Glaciology,
59
(217),
pp. 972-980
.
doi:https://doi.org/10.3189/2013JoG12J245
, hdl:10013/epic.42156
|
|
Article
Weikusat, C. , Freitag, J. ![]() Raman spectroscopy of gaseous inclusions in EDML ice core: First results - microbubbles ,
Journal of Glaciology,
58
(210),
pp. 761-766
.
doi:https://doi.org/10.3189/2012JoG11J222
, hdl:10013/epic.39700
|
|
Article
Linow, S. , Hörhold, M. and Freitag, J. ![]() Grain-size evolution of polar firn: a new empirical grain growth parameterization based on X-ray microcomputer tomography measurements ,
Journal of Glaciology,
58
(212),
pp. 1245-1252
.
doi:https://doi.org/10.3189/2012JoG11J256
, hdl:10013/epic.40394
|
|
Article
Hörhold, M. , Laepple, T. ![]() ![]() On the impact of impurities on the densification of polar firn ,
Earth and Planetary Science Letters,
325-32
,
pp. 93-99
.
doi:https://doi.org/10.1016/j.epsl.2011.12.022
, hdl:10013/epic.41153
|
|
Article
Hörhold, M. , Kipfstuhl, S. , Wilhelms, F. ![]() ![]() The densification of layered polar firn ,
JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 116, F01001PP.,
15
.
doi:https://doi.org/10.1029/2009JF001630
, hdl:10013/epic.37133
|
|
Article
Faria, S. H. , Freitag, J. ![]() Polar ice structure and the integrity of ice-core paleoclimate records ,
Journal of Quaternary Science Reviews, 29 (1-2), Climate of the Last Million Years: New Insights from EPICA and Other Records,
pp. 338-351
.
doi:https://doi.org/10.1016/j.quascirev.2009.10.016
, hdl:10013/epic.34411
|
|
Article
Birnbaum, G. ![]() ![]() Strong-wind events and their influence on the formation of snow dunes: Observations from Kohnen Station, Dronning Maud Land, Antarctica ,
Journal of Glaciology,
56
(199),
pp. 891-902
.
hdl:10013/epic.36095
|
|
Article
Redenbach, C. , Särkkä, A. , Freitag, J. ![]() Anisotropy analysis of pressed point processes ,
Advances in Statistical Analysis,
pp. 1-25
.
doi:https://doi.org/10.1007/s10182-009-0106-5
, hdl:10013/epic.32441
|
|
Article
Kipfstuhl, S. , Faria, S. H. , Azuma, N. , Freitag, J. ![]() ![]() ![]() Evidence of dynamic recrystallization in polar firn ,
Journal of Geophysical Research, 114, B05204.
.
doi:https://doi.org/10.1029/2008JB005583
, hdl:10013/epic.34410
|
|
Article
Hörhold, M. , Albert, M. R. and Freitag, J. ![]() The impact of accumulation rate on anisotropy and air permeability of polar firn at a high accumulation site ,
Journal of Glaciology,
55
(192),
pp. 625-630
.
hdl:10013/epic.33525
|
|
Article
Freitag, J. ![]() The connectivity of crystallite agglomerates in low-density firn at Kohnen station, Dronning Maud Land, Antarctica ,
Ann. Glaciol.,
49
,
pp. 114-120
.
hdl:10013/epic.31526
|
|
Article
Abegg, F. , Bohrmann, G. , Freitag, J. ![]() Fabric of gas hydrate in sediments from Hydrate Ridge - Results from ODP Leg 204 samples. ,
Geo-Marine Letters,
27
,
pp. 269-277
.
doi:https://doi.org/10.1007/s00367-007-0080-4
, hdl:10013/epic.32431
|
|
Article
Landais, A. , Barnola, J. M. , Kawamura, K. , Caillon, N. , Delmotte, M. , Van Ommen, T. , Dreyfus, G. , Jouzel, J. , Masson-Delmotte, V. , Minster, B. , Freitag, J. ![]() Firn-air d15N in modern polar sites and glacial-interglacial ice: a model-data mismatch during glacial periods in Antarctica? ,
Quaternary science reviews,
25
(1),
pp. 49-62
.
doi:https://doi.org/10.1016/j.quascirev.2005.06.007
, hdl:10013/epic.25212
|
|
Article
Kipfstuhl, S. , Hamann, I. ![]() ![]() Microstructure mapping: a new method for imaging deformation-induced microstructural features of ice on the grain scale ,
Journal of glaciology,
52
(178),
pp. 398-406
.
hdl:10013/epic.27838
|
|
Article
EPICA Community Members, T. , Barbante, C. , Barnola, J. M. , Becagli, S. , Beer, J. , Bigler, M. , Boutron, C. , Blunier, T. , Castellano, E. , Cattani, O. , Chappellaz, J. , Dahl-Jensen, D. , Debret, M. , Delmonte, B. , Dick, D. , Falourd, S. , Faria, S. , Federer, U. , Fischer, H. , Freitag, J. ![]() ![]() ![]() ![]() ![]() One-to-one coupling of glacial climate variability in Greenland and Antarctica ,
Nature,
444
(7116),
pp. 195-198
.
doi:https://doi.org/10.1038/nature05301
, hdl:10013/epic.41684
|
|
Article
Freitag, J. ![]() ![]() Microstructure dependent densification of polar firn derived from X-ray microtomography ,
Journal of glaciology, 50,
169
,
pp. 243-250
.
hdl:10013/epic.19834
|
|
Article
Eisen, O. ![]() ![]() ![]() Bowling mermaids; or How do fresh water ice balls form? ,
Journal of Glaciology, 49,
167
,
pp. 605-606
.
hdl:10013/epic.19024
|
|
Article
Freitag, J. ![]() Meltwater circulation and permeability of Arctic summer sea ice derived from hydrological field experiments ,
Journal of Glaciology, Vol 49,
pp. 349-358
.
hdl:10013/epic.15219
|
|
Article
Freitag, J. ![]() A new method for predicting transport properties of polar firn with respect to gases on the pore space scale ,
Annals of Glaciology,
35
,
pp. 538-544
.
hdl:10013/epic.15220
|
|
Article
Eicken, H. , Kolatschek, J. , Freitag, J. ![]() A key source area and constraints on entrainment for basin-scale sediment transport by Arctic sea ice ,
Geophysical Research Letters,
27
(13),
pp. 1919-1922
.
hdl:10013/epic.15221
|
|
Inbook
Binder, T. , Weikusat, I. ![]() ![]() Microstructure through an Ice Sheet / Barnett, M. (editor) ,
In: Recrystallization and Grain Growth V,
Materials Science Forum,
Zurich, Switzerland,
Trans Tech Publications,
590 p.,
ISBN: 978-3-03785-688-8
.
doi:https://doi.org/10.4028/www.scientific.net/MSF.753.481
, hdl:10013/epic.41351
|
|
Inbook
Eicken, H. , Weissenberger, J. , Bussmann, I. ![]() ![]() Ice-tank studies of physical and biological sea-ice processes, in ,
Ice in surface waters, H. Shen, Editor. , Balkema: Rotterdam
.
hdl:10013/epic.31852
|
|
Conference
-Poster
Münch, T. ![]() ![]() ![]() ![]() ![]() Testing the ideal ice-core record for past temperature reconstructions using combined isotope and impurity analyses ,
EGU Sharing Geoscience Online,
Online,
4 May 2020 - 8 May 2020
.
doi:https://doi.org/10.5194/egusphere-egu2020-15866
, hdl:10013/epic.32b80318-e6de-4283-bb65-e1bacc0b6e2e
|
|
Conference
-Talk
Schlemmer, A. , tom Wörden, H. , Freitag, J. ![]() ![]() ![]() ![]() Evaluation of the semantic research data management system CaosDB in glaciology ,
deRSE19 - Konferenz für ForschungssoftwareentwicklerInnen in Deutschland,
Potsdam, Germany,
4 June 2019 - 6 June 2019
.
hdl:10013/epic.ad5019dc-ce77-4bcf-a861-d6bee0707777
|
|
Conference
-Talk
Schlegel, R. , Diez, A. , Löwe, H. , Mayer, C. , Lambrecht, A. , Freitag, J. ![]() ![]() Comparison of elastic moduli from seismic diving-wave and ice-core microstructure analysis in Antarctic polar firn ,
EGU General Assembly,
Vienna,
7 April 2019 - 12 April 2019
.
hdl:10013/epic.63469c1a-aace-47e7-91e2-623546010102
|
|
Conference
-Talk
Eisen, O. ![]() ![]() ![]() ![]() Extreme spatial variability of crystal fabric in an Alpine ice core - a plea for high-res continuous fabric data on all ice cores ,
22nd Alpine Glaciology Meeting,
Chamonix,
1 March 2018 - 2 March 2018
.
hdl:10013/epic.07a27d8e-d78f-4343-94b7-e70bebf8075e
|
|
Conference
-Talk
Schaller, C. F. , Freitag, J. ![]() ![]() ![]() In-situ observation of bubble trapping in polar firn ,
EGU General Assembly,
Vienna,
23 April 2017 - 28 April 2017
.
hdl:10013/epic.05b61388-a40d-4e9d-968e-b76257565c78
|
|
Conference
-Invited talk
Freitag, J. ![]() Computertomografie von Schnee und Eis ,
Heidelberger Bildverarbeitungsforum,
Fürth, Germany,
7 March 2017 - 7 March 2017
.
hdl:10013/epic.50623
|
|
Conference
-Poster
Carlsen, T. , Belke Brea, M. , Birnbaum, G. ![]() ![]() Spatio-temporal variability of snow surface albedo and grain size derived from airborne and ground-based observations in Antarctica ,
SCAR Open Science Conference,
Kuala Lumpur, Malaysia,
22 August 2016 - 26 August 2016
.
hdl:10013/epic.48525
|
|
Conference
-Talk
Karlsson, N. , Eisen, O. ![]() ![]() ![]() Accumulation rates from central North Greenland during the past 700yr ,
EGU General Assembly 2016,
Vienna, Austria,
17 April 2016 - 22 April 2016
.
hdl:10013/epic.47805
|
|
Conference
-Talk
Carlsen, T. , Birnbaum, G. ![]() ![]() Observations of snow properties in Antarctica ,
International Radiation Symposium,
Auckland, New Zealand,
16 April 2016 - 22 April 2016
.
hdl:10013/epic.47767
|
|
Conference
-Poster
Karlsson, N. B. , Eisen, O. ![]() ![]() ![]() Accumulation rates from central North Greenland during the past 700 year ,
Second Open Science Conference of the International Partnerships in Ice Core Sciences (IPICS2016),
Hobart, Australia,
17 March 2016 - 22 March 2016
.
hdl:10013/epic.47799
|
|
Conference
-Poster
Freitag, J. ![]() Bubble observations and analysis of the Renland ice core ,
Second IPICS Open Science Meeting,
Hobart, Australia,
7 March 2016 - 11 March 2016
.
hdl:10013/epic.49829
|
|
Conference
-Poster
Belke Brea, M. , Birnbaum, G. ![]() ![]() The impact of specific surface area and clouds on surface albedo: Investigations made at Kohnen Station, Antarctica, during summer 2013/2014 ,
26th International Congress on Polar Research,
Munich, Germany,
6 September 2015 - 11 September 2015
.
hdl:10013/epic.45957
|
|
Conference
-Poster
Carlsen, T. , Belke Brea, M. , Birnbaum, G. ![]() ![]() Airborne and in situ ground-based measurements of surface albedo, bidirectional reflectivity BRDF and snow properties on the Antarctic plateau ,
Koordinationsworkshop DFG-Schwerpunktprogramm 1158 - Antarktisforschung,
Frankfurt am Main,
30 September 2015 - 2 October 2015
.
hdl:10013/epic.46081
|
|
Conference
-Poster
Münch, T. ![]() ![]() ![]() ![]() Signal vs. Noise: Obtaining a representative d18O record in a low-accumulation region ,
EGU General Assembly 2015,
Vienna, Austria,
12 April 2015 - 17 April 2015
.
hdl:10013/epic.45778
|
|
Conference
-Poster
Münch, T. ![]() ![]() ![]() ![]() Signal vs. Noise: Obtaining a representative d18O record in a low-accumulation region ,
36th Meeting of the AWI Scientific Advisory Board (SAB),
6 May 2015 - 7 May 2015
.
hdl:10013/epic.45779
|
|
Conference
-Poster
Hörhold, M. , Linow, S. and Freitag, J. ![]() Accounting for the layering of snow and firn - on the link between density and grain size variability ,
Microstructure in Snow Microwave Radiative Transfer (MICROSNOW) Workshop,
University of Reading,
6 August 2014 - 8 August 2014
.
hdl:10013/epic.44265
|
|
Conference
-Poster
Klein, K. , Schneebeli, M. , Birnbaum, G. ![]() ![]() Cascading decrease of the surface snow SSA at Kohnen Station, DML, Antarctica ,
EGU General Assembly 2014,
Vienna,
28 April 2014 - 2 May 2014
.
hdl:10013/epic.43620
|
|
Conference
-Poster
Freitag, J. ![]() Melt layer statistic of two firn cores recently drilled at Dye3 and South Dome in the dry snow zone of Southern Greenland ,
EGU general assembly,
Vienna, Austria,
27 April 2014 - 2 May 2014
.
hdl:10013/epic.49825
|
|
Conference
-Poster
Münch, T. ![]() ![]() ![]() ![]() Two-dimensional insights into the signal formation in low-accumulation firn-cores ,
EGU General Assembly 2014,
Vienna, Austria,
27 April 2014 - 2 May 2014
.
hdl:10013/epic.45777
|
|
Conference
-Talk
Binder, T. , Weikusat, I. ![]() ![]() Automated microstructure characterization through deep ice cores using sublimation etching ,
5th International Conference on Recrystallization & Grain Growth,
Sydney,
5 May 2013 - 10 May 2013
.
hdl:10013/epic.43564
|
|
Conference
-Poster
Birnbaum, G. ![]() ![]() In situ measurements of snow properties and surface albedo at Kohnen Station, East Antarctic Plateau to improve prognostic snow models ,
Snow Grain Size Workshop,
Grenoble, France,
2 April 2013 - 5 April 2013
.
hdl:10013/epic.41380
|
|
Conference
-Invited talk
Freitag, J. ![]() ![]() Modeling delta-age distributions of enclosed air in layered firn ,
PIRE-Firn Workshop,
La Jolla, San Diego, USA,
21 September 2013 - 26 September 2013
.
hdl:10013/epic.49845
|
|
Conference
-Poster
Binder, T. , Weikusat, I. ![]() ![]() Properties of grain boundary networks in the NEEM ice core ,
EGU General Assembly 2013,
Vienna,
7 April 2013 - 12 April 2013
.
hdl:10013/epic.41354
|
|
Conference
-Poster
Freitag, J. ![]() ![]() Shifts in the gas age scales of the EDML and EDC ice cores suggested by a new model for impurity controlled firn densification ,
IPICS International Partnerships in Ice Core Sciences,
PresQuile de Giens, France,
1 October 2012 - 5 October 2012
.
hdl:10013/epic.42158
|
|
Conference
-Poster
Klein, K. and Freitag, J. ![]() Direct observations of pore close-off in stratified firn by means of large scale X-ray computer tomography ,
Open Science Conference IPICS 2012,
Giens, France,
1 October 2012 - 5 October 2012
.
hdl:10013/epic.43619
|
|
Conference
-Invited talk
Freitag, J. ![]() ![]() Impurity controlled firn densification: a new model approach ,
PIRE Firn workshop,
PresQuile de Giens, France,
29 September 2012 - 31 September 2012
.
hdl:10013/epic.42159
|
|
Conference
-Talk
Freitag, J. ![]() ![]() Impurity controlled firn densification ,
EGU Meeting,
Vienna,
22 April 2012 - 27 April 2012
.
hdl:10013/epic.42161
|
|
Conference
-Poster
Weißbach, S. , Wegner, A. , Freitag, J. ![]() The influence of impurities on the densification of firn -a case study from North Greenland ,
Geophysical Research Abstracts Vol. 14, EGU2012-10143, EGU General Assembly,
Vienna,
22 April 2012 - 27 April 2012
.
hdl:10013/epic.39264
|
|
Conference
-Poster
Weikusat, C. , Freitag, J. ![]() Raman spectroscopy of bubbles and microbubbles in EDML antarctic ice core ,
Geophysical Research Abstracts Vol. 13, EGU2011-7178
.
hdl:10013/epic.37353
|
|
Conference
-Poster
Behrens, M. ![]() ![]() Combining total air content measurements with ice and pore structure investigations on the micro-scale ,
EPICA Science Meeting, 2010, Rome, Italy.
.
hdl:10013/epic.35189
|
|
Conference
-Invited talk
Freitag, J. ![]() Direkte Beobachtungen und Modellierung des Lufteinschlusses im polaren Eis Neue Erkenntnisse für die Luftaltersbestimmung ,
Seminar der Abt. Klima- und Umweltphysik, Universität Bern.
.
hdl:10013/epic.36395
|
|
Conference
-Talk
Kipfstuhl, S. , Faria, S. H. , Azuma, N. , Freitag, J. ![]() ![]() Dynamic recrystallization in polar firn and ice ,
EGU
.
hdl:10013/epic.34440
|
|
Conference
-Poster
Kipfstuhl, S. , Freitag, J. ![]() Grain size in polar firn - what can we learn from high resolution images about grain growth in firn? ,
EGU
.
hdl:10013/epic.34441
|
|
Conference
-Poster
Drews, R. , Bohleber, P. , Eisen, O. ![]() ![]() ![]() ![]() ![]() Imprints of air bubbles and crystal orientation fabric on RES signature ? ,
EGU 2009.
.
hdl:10013/epic.33294
|
|
Conference
-Talk
Hörhold, M. , Kipfstuhl, S. , Wilhelms, F. ![]() ![]() Is the densification of polar firn abnormal ? ,
European Geosciences Union General Assembly 2009 Vienna, Austria 24 April 2009..
.
hdl:10013/epic.32064
|
|
Conference
-Conference paper
Faria, S. H. , Kipfstuhl, S. , Azuma, N. , Kuhs, W. F. , Freitag, J. ![]() ![]() Multiscale Structures in the Antarctic Ice Sheet Part I: Inland Ice ,
Physics of ice core records II / ed. by Takeo Hondoh Sapporo : Hokkaido University Press. (Low Temperature Science, Supplement Issue ; 68)
.
hdl:10013/epic.35759
|
|
Conference
-Poster
Hörhold, M. , Freitag, J. ![]() Polar Snow and Firn Properties - Examples from a Natural Long -Term-Experiment ,
International Snow Sciences Workshop (ISSW) 27.9. - 2.10. 2009, Davos, Switzerland,.
.
hdl:10013/epic.34022
|
|
Conference
-Poster
Hörhold, M. and Freitag, J. ![]() Why do we care about snow pore structure? ,
Knowledge Based Materials 4th Marie Curie Summer School, Porous and Aquerous Materials, 19. - 29.8.2008, Trest, Chech Republic.
.
hdl:10013/epic.34029
|
|
Conference
-Poster
Freitag, J. ![]() The layered structure of firn and its effect on air entrapment ,
EPICA Science conference, Venice 11.-13.11.2008.
.
hdl:10013/epic.31596
|
|
Conference
-Invited talk
Freitag, J. ![]() The layering of polar firn and its linkage to air trapping ,
Workshop on the mircostructure and properties of firn, 10-11.3.2008 Dartmouth College, Hanover, USA.
.
hdl:10013/epic.31357
|
|
Conference
-Poster
Freitag, J. ![]() 3D-X-ray micro tomography and 2D-microstructure mapping of polar firn - a comprehensive picture by two complementary methods? ,
International symposium on snow science, IGS, MoscowSeptember 2007.
.
hdl:10013/epic.27907
|
|
Conference
-Poster
Lautensack, C. , Särkkä, A. , Schladitz, K. and Freitag, J. ![]() Anisotropy analysis of the system of air pores in polar ice ,
14th Workshop on Stochastic Geometry, Stereology and Image Analysis, 23-28. September 2007, Neudietendorf, Germany.
.
hdl:10013/epic.27950
|
|
Conference
-Poster
Freitag, J. ![]() Direct observations and model calculations of air trapping in polar ice ,
EGU ViennaApril 2007.
.
hdl:10013/epic.27905
|
|
Conference
-Invited talk
Freitag, J. ![]() Eis und Kälte - Der Arbeitsalltag eines Polarforschers ,
Oberstufenzentrum KSA, Bremen, Beitrag zum Profilthema Polarforschung in Geographie, Deutsch und Darstellendem Spiel.2.2007.
.
hdl:10013/epic.26401
|
|
Conference
-Poster
Abegg, F. , Freitag, J. ![]() Fabric and depth distribution of gas hydrate in the shallow sub-seafloor of the Batumi Seep area offshore Georgia, Eastern Black Sea. ,
GV-Tagung: The Oceans in the Earth System, BremenOctober 2007.
.
hdl:10013/epic.27892
|
|
Conference
-Poster
Freitag, J. ![]() In Situ X-Ray-micro-tomography of snow at the EPICA-Drill Site Dronning Maud Land (DML) Antarctica ,
EGU ViennaApril 2007.
.
hdl:10013/epic.27906
|
|
Conference
-Invited talk
Hamann, I. ![]() ![]() Microstructures in the EPICA DML ice core, Antarctica - sub-grain boundary statistics ,
The 2nd International Workshop on Physics of Ice Core Records (PICR-2), February 2 6, 2007, Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan.
.
hdl:10013/epic.26579
|
|
Conference
-Poster
Birnbaum, G. ![]() ![]() Starkwindereignisse und ihr Einfluss auf die Bildung von Schneedünen auf dem antarktischen Plateau von Dronning Maud Land ,
DACH Meteorologentagung, 10-14 Sept., Hamburg.
.
hdl:10013/epic.27712
|
|
Conference
-Talk
Birnbaum, G. ![]() ![]() Strong Wind and Heavy Precipitation Events on the Antarctic plateau: Observations from Kohnen Station, Dronning Maud Land ,
2nd Antarctic Meteorological Observation, Modeling, and Forecasting Workshop, 26-28 June, Rome, Italy.
.
hdl:10013/epic.26870
|
|
Conference
-Invited talk
Freitag, J. ![]() Von Schnee zu Eis - Anwendungen der Röntgen Mikro-Computer-Tomographie in der Antarktis ,
Arbeitskreis "Bildanalyse und Mustererkennung Kaiserslautern" (BAMEK) IWTM-Fraunhofer-Institut.2.2007.
.
hdl:10013/epic.26400
|
|
Conference
-Invited talk
Freitag, J. ![]() Anwendung der Röntgen-Mikro-Computertomographie in der Antarktis - das polare Eisschild als poröses Medium ,
Sect. of Crystallography, GZG, University of Göttingen.11.2006.
.
hdl:10013/epic.25931
|
|
Conference
-Talk
Wilhelms, F. ![]() ![]() ![]() Both EPICA cores completed: Is the little sister the elder one? ,
European Geosciences Union General Assembly 2006 Vienna, Austria 07 April 2006.
.
hdl:10013/epic.25469
|
|
Conference
-Poster
Weiler, K. , Schwander, J. , Nyfeler, P. , Leuenberger, M. , Kaufmann, P. , Stoof, G. , Trimborn, K. , Freitag, J. ![]() Firnair sampling at Kohnen Station, Antarctica: estimation of the age difference between air and ice from CO2-data ,
EGU, Vienna 2006.
.
hdl:10013/epic.25170
|
|
Conference
-Poster
Hamann, I. ![]() ![]() Grain boundary hierarchy in the EPICA-DML deep ice core, Antarctica ,
11th International Conference on the Physics and Chemistry of Ice PCI 2006 Bremerhaven, Germany, July 23rd28th
.
hdl:10013/epic.25642
|
|
Conference
-Poster
Freitag, J. ![]() The firnification of snow measured by X-Ray-micro-tomography at the EPICA-Drill site Dronning Maud Land (DML), Antarctica ,
11th International Conference on the Physics and Chemistry of Ice, PCI, Bremerhaven, Germany.7.-28.7.2006.
.
hdl:10013/epic.25932
|
|
Conference
-Poster
Kipfstuhl, S. , Freitag, J. ![]() ![]() Cloudy bands and their microstructure in the EPICA-DML ice core ,
.
.
hdl:10013/epic.23149
|
|
Conference
-Poster
Ruth, U. , Freitag, J. ![]() Continuous Measurements of Air Content: First Results from the EDML Ice Core, Antarctica and comparison to EDC ,
General Assembly of the European Geosciences Union, 24.-29.04.2005 Vienna, Austria.
.
hdl:10013/epic.22584
|
|
Conference
-Poster
Ruth, U. , Freitag, J. ![]() Continuous measurements of air content: first results from the EDML ice core, Antarctica ,
AGU Fall Meeting 13-17 Dec. 2004 San Francisco USA.
.
hdl:10013/epic.22143
|
|
Conference
-Poster
Freitag, J. ![]() ![]() The influence of stratigraphic features on gas diffusion and pore close-off in dry polar firn ,
EGS-conference, 25-30 April, Nice, France.
.
hdl:10013/epic.21564
|
|
Conference
-Talk
Freitag, J. ![]() Gespür für Schnee Anwendungen der Röntgen-Computer-Tomographie in der Polarforschung ,
12th Workshop 'Quantitative Image Analysis', 16 May, Darmstadt, Germany.
.
hdl:10013/epic.19254
|
|
Conference
-Poster
Freitag, J. ![]() ![]() Particle size dependent densification rates lead to minimum in density fluctuations of polar firn ,
EGS-AGU-EUG, 7-11 April, Nice, France.
.
hdl:10013/epic.19253
|
|
Conference
-Poster
Eicken, H. , Pfirman, S. , Krouse, H. R. , Haas, C. ![]() ![]() ![]() Tracer studies of Arctic sea-ice growth and ablation ,
IUGG-Tagung, Birmingham, UK.
.
hdl:10013/epic.20297
|
|
"Berichte zur Polar- und Meeresforschung"
PhD
Freitag, J. ![]() Untersuchungen zur Hydrologie des arktischen Meereises : Konsequenzen für den kleinskaligen Stofftransport = The hydraulic properties of Arctic sea-ice : implications for the small scale particle transport ,
Berichte zur Polarforschung (Reports on Polar Research),
Bremerhaven,
Alfred Wegener Institute for Polar and Marine Research,
325
,
150 p.
.
doi:https://doi.org/10.2312/BzP_0325_1999
, hdl:10013/epic.10328
|
|
PANGAEA Documentation
Sikorski, I. , Freitag, J. ![]() Stationen des Polarfront-Projektes ,
Alfred-Wegener-Institut für Polar- und Meeresforschung, Bremerhaven.,
Bremerhaven,
PANGAEA
.
hdl:10013/epic.28413
|
|