Items where Author is "Rack, Wolfgang"

Lavergne, T. , Kern, S. , Aaboe, S. , Derby, L. , Dybkjaer, G. , Garric, G. , Heil, P. , Hendricks, S. ORCID: https://orcid.org/0000-0002-1412-3146, Holfort, J. , Howell, S. , Key, J. , Lieser, J. L. , Maksym, T. , Maslowski, W. , Meier, W. , Munoz-Sabater, J. , Nicolas, J. , Özsoy, B. , Rabe, B. ORCID: https://orcid.org/0000-0001-5794-9856, Rack, W. , Raphael, M. , de Rosnay, P. , Smolyanitsky, V. , Tietsche, S. , Ukita, J. , Vichi, M. , Wagner, P. , Willmes, S. and Zhao, X. (2022)
A New Structure for the Sea Ice Essential Climate Variables of the Global Climate Observing System , doi:10.1175/BAMS-D-21-0227.1 , hdl:10013/epic.e19f23fe-09ff-4eec-882e-bf6a2a50f1dd

Haas, C. ORCID: https://orcid.org/0000-0002-7674-3500, Langhorne, P. J. ORCID: https://orcid.org/0000-0003-0239-7657, Rack, W. ORCID: https://orcid.org/0000-0003-2447-377X, Leonard, G. H. , Brett, G. M. ORCID: https://orcid.org/0000-0001-8249-2675, Price, D. ORCID: https://orcid.org/0000-0001-6003-0920, Beckers, J. F. ORCID: https://orcid.org/0000-0003-0751-3995 and Gough, A. J. (2021)
Airborne mapping of the sub-ice platelet layer under fast ice in McMurdo Sound, Antarctica , doi:10.5194/tc-15-247-2021 , hdl:10013/epic.a7037116-9aa6-4c61-80f8-c947a62e1d1b

Rack, W. , Price, D. , Haas, C. ORCID: https://orcid.org/0000-0002-7674-3500, Langhorne, P. J. and Leonard, G. H. (2020)
Sea Ice Thickness in the Western Ross Sea , doi:10.1029/2020GL090866 , hdl:10013/epic.03401402-b593-44c8-8c99-0626835f639d

Price, D. , Beckers, J. M. , Ricker, R. ORCID: https://orcid.org/0000-0001-6928-7757, Kurtz, N. , Rack, W. , Haas, C. , Helm, V. ORCID: https://orcid.org/0000-0001-7788-9328, Hendricks, S. ORCID: https://orcid.org/0000-0002-1412-3146, Leonard, G. and Langhorn, P. , Gateway Antarctica, University of Canterbury, Christchurch, New Zealand, Department of Earth & Atmospheric Sciences, University of Alberta, Edmonton, Alberta, Canada, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany, Cryospheric Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, USA, Department of Earth, Space Science and Engineering, York University, Toronto, Ontario, Canada, School of Surveying, University of Otago, Dunedin, New Zealand, Department of Physics, University of Otago, Dunedin, New Zealand (2015)
Evaluation of CryoSat-2 derived sea-ice freeboard over fast ice in McMurdo Sound, Antarctica , doi:10.3189/2015JoG14J157 , hdl:10013/epic.45308

Dierking, W. ORCID: https://orcid.org/0000-0002-5031-648X, Linow, S. and Rack, W. (2014)
Space Missions for the Retrieval of Accumulation Rates in Polar Regions , hdl:10013/epic.44249

Dierking, W. ORCID: https://orcid.org/0000-0002-5031-648X, Linow, S. , Wesche, C. ORCID: https://orcid.org/0000-0002-9786-4010, Rack, W. , Hoppmann, M. ORCID: https://orcid.org/0000-0003-1294-9531 and Willmes, S. (2013)
TSX-Data for Studies of Snow on Ice Sheets And Sea Ice - Preliminary Results , hdl:10013/epic.42053

Neckel, N. ORCID: https://orcid.org/0000-0003-4300-5488, Drews, R. , Rack, W. and Steinhage, D. ORCID: https://orcid.org/0000-0003-4737-9751 (2012)
Basal melting at the Ekström Ice Shelf, Antarctica, estimated from mass flux divergence , doi:10.3189/2012AoG60A167 , hdl:10013/epic.40157

Dierking, W. ORCID: https://orcid.org/0000-0002-5031-648X, Linow, S. and Rack, W. (2012)
Towards a robust retrieval of snow accumulation over the Antarctic ice sheet using satellite radar , doi:10.1029/2011JD017227 , hdl:10013/epic.43401

Bindschadler, R. , Choi, H. , Wichlacz, A. , Bingham, B. , Bohlander, J. , Brunt, K. , Corr, H. , Drews, R. , Fricker, H. , Hall, M. , Hindmarsh, R. , Kohler, J. , Padman, L. , Rack, W. , Rotschky, G. , Urbini, S. , Vornberger, P. and Young, N. (2011)
Getting around Antarctica: New high-resolution mappings of the grounded and freely-floating boundaries of the Antarctic ice sheet created for the International Polar Year , doi:10.5194/tc-5-569-2011 , hdl:10013/epic.36917

Drews, R. , Rack, W. , Wesche, C. ORCID: https://orcid.org/0000-0002-9786-4010 and Helm, V. ORCID: https://orcid.org/0000-0001-7788-9328 (2009)
A spatially adjusted elevation model in Dronning Maud Land, Antarctica, based on differential SAR Interferometry , doi:10.1109/TGRS.2009.2016081 , hdl:10013/epic.33171

Dunse, T. , Eisen, O. ORCID: https://orcid.org/0000-0002-6380-962X, Helm, V. ORCID: https://orcid.org/0000-0001-7788-9328, Rack, W. , Steinhage, D. ORCID: https://orcid.org/0000-0003-4737-9751 and Parry, V. (2008)
Characteristics and small-scale variability of GPR signals and their relation to snow accumulation in Greenland's percolation zone , hdl:10013/epic.31451

Jansen, D. ORCID: https://orcid.org/0000-0002-4412-5820, Schodlok, M. and Rack, W. (2007)
Basal melting of A-38B: A physical model constrained by satellite observations , doi:10.1016/j.rse.2007.03.022 , hdl:10013/epic.34447

Helm, V. ORCID: https://orcid.org/0000-0001-7788-9328, Rack, W. , Cullen, R. , Nienow, P. , Mair, D. , Parry, V. and Wingham, D. J. (2007)
Winter accumulation in the percolation zone of Greenland measured by airborne radar altimeter , doi:10.1029/2006GL029185 , hdl:10013/epic.27029

Helm, V. ORCID: https://orcid.org/0000-0001-7788-9328, Hendricks, S. ORCID: https://orcid.org/0000-0002-1412-3146, Göbell, S. , Rack, W. , Haas, C. ORCID: https://orcid.org/0000-0002-7674-3500, Nixdorf, U. and Boebel, T. (2006)
CryoVEx 2004 and 2005 (BoB) data acquisition and final report , hdl:10013/epic.34417

Steinhage, D. ORCID: https://orcid.org/0000-0003-4737-9751, Nixdorf, U. , Rack, W. and Miller, H. (2006)
Flugzeuggestütztes EMR und Anwendungsbeispiele aus den Polarregionen , hdl:10013/epic.24940

Anschütz, H. , Eisen, O. ORCID: https://orcid.org/0000-0002-6380-962X, Rack, W. and Scheinert, M. (2006)
Periodic Surface Features in Coastal East Antarctica , doi:10.1029/2006GL027871 , hdl:10013/epic.25447

Rotschky, G. , Rack, W. , Dierking, W. ORCID: https://orcid.org/0000-0002-5031-648X and Oerter, H. (2006)
Retrieving Snowpack Properties and Accumulation Estimates from Combination of SAR and Scatterometer Measurements , doi:10.1109/TGRS.2005.862524 , hdl:10013/epic.23031

Eisen, O. ORCID: https://orcid.org/0000-0002-6380-962X, Rack, W. , Nixdorf, U. and Wilhelms, F. ORCID: https://orcid.org/0000-0001-7688-3135 (2005)
Characteristics of accumulation in the vicinity of the EPICA deep-drilling site in Dronning Maud Land, Antarctica , hdl:10013/epic.21131

Jansen, D. ORCID: https://orcid.org/0000-0002-4412-5820, Sandhäger, H. and Rack, W. (2005)
Evolution of tabular iceberg A-38B, observation and simulation , hdl:10013/epic.22301

Jansen, D. ORCID: https://orcid.org/0000-0002-4412-5820, Sandhäger, H. and Rack, W. (2005)
Model experiments on large tabular iceberg evolution: ablation and strain thinning , hdl:10013/epic.21690

Sandhäger, H. , Rack, W. and Jansen, D. ORCID: https://orcid.org/0000-0002-4412-5820 (2005)
Model investigations of Larsen B Ice Shelf dynamics prior to the breakup , hdl:10013/epic.22267

Rack, W. (2004)
Pattern of retreat and disintegration of Larsen B ice shelf, Antarctic Peninsula , hdl:10013/epic.21804

Eisen, O. ORCID: https://orcid.org/0000-0002-6380-962X, Freitag, J. ORCID: https://orcid.org/0000-0003-2654-9440, Haas, C. ORCID: https://orcid.org/0000-0002-7674-3500, Rack, W. , Rotschky, G. and Schmitt, J. (2003)
Bowling mermaids; or How do fresh water ice balls form? , hdl:10013/epic.19024

Rott, H. , Rack, W. , Skvarca, P. and Angelis, H. d. (2002)
Northern Larsen Ice Shelf, Antarctica: further retreat after collapse , hdl:10013/epic.16534

Rack, W. , Doake, C. S. M. , Rott, H. , Siegel, A. and Skvarca, P. (2000)
Interferometric analysis of the deformation pattern of the northern Larsen Ice Shelf, Antarctic Peninsula, compared to field measurements and numerical modeling , hdl:10013/epic.16550

Skvarca, P. , Rack, W. and Rott, H. (1999)
34 year satellite time series to monitor characteristics, extent and dynamics of Larsen B, Antarctic Peninsula , hdl:10013/epic.16558

Skvarca, P. , Rack, W. , Rott, H. and Ibarzábal y Donángelo, T. (1999)
Climatic trend, retreat and disintegration of ice shelves on the Antarctic Peninsula: an overview , hdl:10013/epic.16559

Rack, W. , Rott, H. , Siegel, A. and Skvarca, P. (1999)
The Motion Field of Northern Larsen Ice Shelf Derived from Satellite Imagery , hdl:10013/epic.16557

Rack, W. , Rott, H. , Siegel, A. and Skvarca, P. (1999)
The Motion Field of Northern Larsen Ice Shelf Derived from Satellite Imagery , hdl:10013/epic.16553

Rott, H. , Rack, W. , Nagler, T. and Skvarca, P. (1998)
Climatically Induced Retreat and Collapse of Northern Larsen Ice Shelf , hdl:10013/epic.23490

Rott, H. , Rack, W. , Nagler, T. and Skvarca, P. (1998)
Climatically induced retreat and collapse of Northern Larsen Ice Shelf, Antarctic Peninsula , hdl:10013/epic.17353

Skvarca, P. , Rack, W. , Rott, H. and Ibarzábal y Donángelo, T. (1998)
Evidence of recent climatic warming on the eastern Antarctic Peninsula , hdl:10013/epic.17345

Rack, W. (2000)
Dynamic Behavior and Disintegration of the Northern Larsen Ice Shelf, Antarctic Peninsula , hdl:10013/epic.16560

Rack, W. (1995)
Streuverhalten und Morphologie der antarktischen Schneedecke aus Scatterometermessungen von ERS-1 (Backscattering Behaviour and Morphology of the Antarctic Snow Pack from Scatterometer Measurements of ERS-1) , hdl:10013/epic.39231

Linow, S. , Dierking, W. ORCID: https://orcid.org/0000-0002-5031-648X, Hörhold, M. and Rack, W. (2015)
Microwave remote sensing of Antarctic firn properties , hdl:10013/epic.47776

Linow, S. , Dierking, W. ORCID: https://orcid.org/0000-0002-5031-648X and Rack, W. (2015)
What can polarimetric SAR data tell us about snow accumulation on polar ice sheets? , hdl:10013/epic.45016

Linow, S. , Dierking, W. ORCID: https://orcid.org/0000-0002-5031-648X, Hörhold, M. and Rack, W. (2014)
Microwave remote sensing of firn properties in Antarctica , hdl:10013/epic.44266

Dierking, W. ORCID: https://orcid.org/0000-0002-5031-648X, Linow, S. and Rack, W. (2014)
Retrieval of Accumulation Rates on the Ice Sheets Using SAR , hdl:10013/epic.44248

Dierking, W. ORCID: https://orcid.org/0000-0002-5031-648X, Linow, S. and Rack, W. (2012)
Snow accumulation over the ice sheets: How reliable is the retrieval from satellite data? , hdl:10013/epic.40398

Neckel, N. ORCID: https://orcid.org/0000-0003-4300-5488, Drews, R. and Rack, W. (2011)
Talk about Diploma thesis: "Surface velocities in the hinterland of the Neumayer III station (Antarctica) derived from SAR-interferometry" , hdl:10013/epic.38312

Drews, R. , Eisen, O. ORCID: https://orcid.org/0000-0002-6380-962X, Rack, W. , Steinhage, D. ORCID: https://orcid.org/0000-0003-4737-9751 and Weikusat, I. ORCID: https://orcid.org/0000-0002-3023-6036 (2010)
Anisotropic backscatter in ice-penetrating radar data: potential mechanisms and implications , hdl:10013/epic.35328

Drews, R. , Eisen, O. ORCID: https://orcid.org/0000-0002-6380-962X, Neckel, N. ORCID: https://orcid.org/0000-0003-4300-5488, Rack, W. and Steinhage, D. ORCID: https://orcid.org/0000-0003-4737-9751 (2010)
Anisotropic radar reflection in ice sheets: Potential mechanisms and implications , hdl:10013/epic.35762

Neckel, N. ORCID: https://orcid.org/0000-0003-4300-5488, Drews, R. , Eisen, O. ORCID: https://orcid.org/0000-0002-6380-962X, Rack, W. and Steinhage, D. ORCID: https://orcid.org/0000-0003-4737-9751 (2010)
Surface velocities and mass flux in the vicinity and hinterland of the Neumayer III station (Antarctica) , hdl:10013/epic.35225

Linow, S. , Dierking, W. ORCID: https://orcid.org/0000-0002-5031-648X and Rack, W. (2009)
Estimating Snow Accumulation from Microwave Remote Sensing , hdl:10013/epic.32906

Drews, R. , Rack, W. , Wesche, C. ORCID: https://orcid.org/0000-0002-9786-4010 and Steinhage, D. ORCID: https://orcid.org/0000-0003-4737-9751 (2008)
Surface topography and massflux of the Antarctic ice sheet in western Dronning Maud Land, derived by differential SAR interferomety , hdl:10013/epic.30442

Wesche, C. ORCID: https://orcid.org/0000-0002-9786-4010, Drews, R. , Steinhage, D. ORCID: https://orcid.org/0000-0003-4737-9751 and Rack, W. (2007)
Precise surface topography in Dronning Maud Land, Antarctica, based on ground based kinematic GPS measurements , hdl:10013/epic.42130

Jansen, D. ORCID: https://orcid.org/0000-0002-4412-5820, Timmermann, R. , Schodlok, M. , Rack, W. and Sandhäger, H. (2006)
Basal melting of tabular icebergs, model results , hdl:10013/epic.25421

Steinhage, D. ORCID: https://orcid.org/0000-0003-4737-9751, Rack, W. , Wesche, C. ORCID: https://orcid.org/0000-0002-9786-4010, Rotschky, G. and Gernandt, H. (2006)
Comparison of surface topography data-sets along new proposed flight routes in Dronning Maud Land and adjacent areas , hdl:10013/epic.26289

Dunse, T. , Helm, V. ORCID: https://orcid.org/0000-0001-7788-9328, Eisen, O. ORCID: https://orcid.org/0000-0002-6380-962X, Rack, W. and Steinhage, D. ORCID: https://orcid.org/0000-0003-4737-9751 (2006)
The Cryosat land ice validation experiment 2004 Part II: Ground-based measurements of the firn structure using GPR , hdl:10013/epic.24939

Helm, V. ORCID: https://orcid.org/0000-0001-7788-9328, Cullen, R. and Rack, W. (2006)
The Cryosat land ice validation experiment CryoVex2004 Part I: ASIRAS vs. laser altimeter measurements , hdl:10013/epic.26981

Helm, V. ORCID: https://orcid.org/0000-0001-7788-9328 and Rack, W. (2006)
The Cryosat land ice validation experiment CryoVex2004 Part I: ASIRAS vs. laser altimeter measurements , hdl:10013/epic.26982

Cullen, R. , Davidson, M. W. J. , Drinkwater, M. R. , Francis, C. R. , Haas, C. ORCID: https://orcid.org/0000-0002-7674-3500, Hawley, R. L. , Mavrocordatos, C. M. , Morris, E. M. , Rack, W. , Ratier, G. , Viau, P. and Wingham, D. J. (2006)
ESAs new range of radar altimeters for the extraction of geophysical parameters from land, sea ice and ocean surfaces , hdl:10013/epic.26071

Steinhage, D. ORCID: https://orcid.org/0000-0003-4737-9751, Nixdorf, U. , Rack, W. and Miller, H. (2006)
Flugzeuggestütztes EMR und Anwendungsbeispiele aus den Polarregionen , hdl:10013/epic.24941

Wesche, C. ORCID: https://orcid.org/0000-0002-9786-4010, Rack, W. , Eisen, O. ORCID: https://orcid.org/0000-0002-6380-962X and Steinhage, D. ORCID: https://orcid.org/0000-0003-4737-9751 (2006)
GPS vs. ICESat: a comparison of two elevation models in Dronning Maud Land, Antarctica , hdl:10013/epic.42128

Steinhage, D. ORCID: https://orcid.org/0000-0003-4737-9751, Rack, W. , Fujita, S. , Nogi, Y. , Jokat, W. ORCID: https://orcid.org/0000-0002-7793-5854, Shiraishi, K. and Herber, A. ORCID: https://orcid.org/0000-0001-6651-3835 (2006)
Massflux investigations on Shirasebreen, Dronning Maud Land, Antarctica , hdl:10013/epic.26290

Jansen, D. ORCID: https://orcid.org/0000-0002-4412-5820, Sandhaeger, H. , Rack, W. and Schodlok, M. (2006)
Validation of iceberg evolution model by ICESAT altimetry , hdl:10013/epic.38220

Dunse, T. , Helm, V. ORCID: https://orcid.org/0000-0001-7788-9328, Eisen, O. ORCID: https://orcid.org/0000-0002-6380-962X and Rack, W. (2006)
The internal layering of snow along a section of the EGIG-line, western Greenland, derived from GPR and ASIRAS-measurements , hdl:10013/epic.24938

Herber, A. ORCID: https://orcid.org/0000-0001-6651-3835, Bartsch, I. ORCID: https://orcid.org/0000-0001-7609-2149, Birnbaum, G. ORCID: https://orcid.org/0000-0002-0252-6781, Gernandt, H. , Haas, C. ORCID: https://orcid.org/0000-0002-7674-3500, Hartmann, J. , Hass, C. ORCID: https://orcid.org/0000-0003-2649-6828, Jacobi, H. W. , Jokat, W. ORCID: https://orcid.org/0000-0002-7793-5854, Lemke, P. ORCID: https://orcid.org/0000-0001-5739-3149, Lüpkes, C. ORCID: https://orcid.org/0000-0001-6518-0717, Miller, H. , Neuber, R. ORCID: https://orcid.org/0000-0001-7382-7832, Nixdorf, U. , Rack, W. , Steinhage, D. ORCID: https://orcid.org/0000-0003-4737-9751 and Treffeisen, R. (2005)
AWI aircraft operations in the last 20 years and future prospects , hdl:10013/epic.24251

Rotschky, G. , Rack, W. and Oerter, H. (2005)
Abschätzung der physikalisch-morphologischen Eigenschaften sowie Akkumulation der polaren Schneedecke mit aktiven Mikrowellensensoren in Dronning Maud Land, Antarktis. , hdl:10013/epic.24803

Wesche, C. ORCID: https://orcid.org/0000-0002-9786-4010, Eisen, O. ORCID: https://orcid.org/0000-0002-6380-962X, Steinhage, D. ORCID: https://orcid.org/0000-0003-4737-9751, Rack, W. and Oerter, H. (2005)
Auswertung und Interpretation der Oberflächentopographie und -geschwindigkeit des Eisschildes in Dronning Maud Land, Antarktis, aus GPS-Messungen , hdl:10013/epic.42132

Jansen, D. ORCID: https://orcid.org/0000-0002-4412-5820, Sandhaeger, H. and Rack, W. (2005)
Influence of inlets on large tabular iceberg evolution , hdl:10013/epic.27970

Rack, W. (2004)
Anwendungsbeispiele von Synthetischem Apertur Radar (SAR) - Polargebiete und alpiner Raum , hdl:10013/epic.21983

Rack, W. (2004)
Changes in Larsen B ice shelf dynamics prior to breakup: satellite borne observations and modelling outcomes , hdl:10013/epic.21574

Jansen, D. ORCID: https://orcid.org/0000-0002-4412-5820, Sandhäger, H. and Rack, W. (2004)
Evolution of tabular iceberg A-38B, observation and simulation , hdl:10013/epic.22302

Steinhage, D. ORCID: https://orcid.org/0000-0003-4737-9751, 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 , hdl:10013/epic.21118

Rack, W. , Nixdorf, U. , Miller, H. and Runge, H. (2004)
Improved monitoring of polar land ice dynamics by means of SAR interferometry: ICEDANCE , hdl:10013/epic.23489

Jansen, D. ORCID: https://orcid.org/0000-0002-4412-5820, Sandhäger, H. and Rack, W. (2004)
Model experiments on gigantic tabular iceberg evolution , hdl:10013/epic.21565

Sandhäger, H. , Rack, W. and Jansen, D. ORCID: https://orcid.org/0000-0002-4412-5820 (2004)
Model investigations of Larsen B Ice Shelf dynamics prior to the breakup , hdl:10013/epic.22266

Rotschky, G. , Rack, W. and Oerter, H. (2004)
Multipolarizational signatures of snow compared to snowpack properties in Dronning Maud Land, Antarctica , hdl:10013/epic.20693

Riedl, C. , Rott, H. and Rack, W. (2004)
Recent variations of Larsen Ice Shelf, Antarctic Peninsula, observed by Envisat , hdl:10013/epic.38206

Rack, W. (2004)
Schmilzt das Eis der Antarktis? , hdl:10013/epic.21984

Rack, W. (2004)
Schnee-Eis-Eisberge, Fernerkundung und Fließverhalten von Gletschern , hdl:10013/epic.21982

Rotschky, G. , Rack, W. and Oerter, H. (2004)
Snowpack properties in Dronning Maud Land, Antarctica, compared to Envisat ASAR and Scatterometer measurements , hdl:10013/epic.22106

Rotschky, G. , Rack, W. and Oerter, H. (2004)
Snowpack properties in Dronning Maud Land, Antarctica, compared to Envisat ASAR and scatterometer measurements , hdl:10013/epic.21883

Rack, W. , Rotschky, G. , Valentine, H. , Hoffmann, F. , Oosthuizen, S. , Gernandt, H. and Miller, H. (2004)
The new traverse route from Atka Bay to SANAE IV , hdl:10013/epic.21897

Rack, W. (2003)
Grounding line detection and ice flow characteristics in Dronning Maud Land, Antarctica, based on ERS SAR interferometry and airborne ice thickness sounding , hdl:10013/epic.21575

Oerter, H. , Fischer, H. , Kipfstuhl, J. , Rack, W. , Weller, R. ORCID: https://orcid.org/0000-0003-4880-5572, Wilhelms, F. ORCID: https://orcid.org/0000-0001-7688-3135 and Graf, W. (2002)
Das Eis der Polargebiete als Klimaarchiv , hdl:10013/epic.17891

Rack, W. , Rott, H. and Nagler, T. (1998)
Areal Changes and Motion of Northern Larsen Ice Shelf, Antarctic Peninsula , hdl:10013/epic.16561

Rott, H. , Skvarca, P. , Rack, W. and Stuefer, M. (1997)
Significant Ice Retreat in the Region Patagonia - Antarctic Peninsula Oberved by ERS SAR , hdl:10013/epic.17366

Rott, H. and Rack, W. (1995)
Characterization of Antarctic Firn by Means of ERS-1 Scatterometer Measurements , hdl:10013/epic.38179