Works by Spreen, Gunnar

Results: 96

Polynya dynamics drive primary production in the Larsen A and B embayments following ice shelf collapse.
Published in:
Journal of Geophysical Research. Oceans, 2014, v. 119, n. C1, p. 572, doi. 10.1002/2013JC009441
By:
- Cape, Mattias R.;
- Vernet, Maria;
- Kahru, Mati;
- Spreen, Gunnar
Publication type:
Article
Impact of a Fram Strait cyclone on ice edge, drift, divergence, and concentration: Possibilities and limits of an observational analysis.
Published in:
Journal of Geophysical Research. Oceans, 2008, v. 113, n. C12, p. n/a, doi. 10.1029/2007JC004149
By:
- Brümmer, Burghard;
- Schröder, David;
- Müller, Gerd;
- Spreen, Gunnar;
- Jahnke-Bornemann, Annika;
- Launiainen, Jouko
Publication type:
Article
Assessing the sea ice microwave emissivity up to submillimeter waves from airborne and satellite observations.
Published in:
Cryosphere Discussions, 2024, p. 1, doi. 10.5194/egusphere-2024-179
By:
- Risse, Nils;
- Mech, Mario;
- Prigent, Catherine;
- Spreen, Gunnar;
- Crewell, Susanne
Publication type:
Article
Melt pond fractions on Arctic summer sea ice retrieved from Sentinel-3 satellite data with a constrained physical forward model.
Published in:
Cryosphere Discussions, 2023, p. 1, doi. 10.5194/egusphere-2023-2194
By:
- Niehaus, Hannah;
- Istomina, Larysa;
- Nicolaus, Marcel;
- Ran Tao;
- Malinka, Alexey;
- Zege, Eleonora;
- Spreen, Gunnar
Publication type:
Article
Updated Arctic melt pond fraction dataset and trends 2002-2023 using ENVISAT and Sentinel-3 remote sensing data.
Published in:
Cryosphere Discussions, 2023, p. 1, doi. 10.5194/tc-2023-142
By:
- Istomina, Larysa;
- Niehaus, Hannah;
- Spreen, Gunnar
Publication type:
Article
SAR Deep Learning Sea Ice Retrieval Trained with Airborne Laser Scanner Measurements from the MOSAiC Expedition.
Published in:
Cryosphere Discussions, 2023, p. 1, doi. 10.5194/tc-2023-72
By:
- Kortum, Karl;
- Singha, Suman;
- Spreen, Gunnar;
- Hutter, Nils;
- Jutila, Arttu;
- Haas, Christian
Publication type:
Article
Lead fractions from SAR-derived sea ice divergence during MOSAiC.
Published in:
Cryosphere Discussions, 2023, p. 1, doi. 10.5194/tc-2023-123
By:
- von Albedyll, Luisa;
- Hendricks, Stefan;
- Hutter, Nils;
- Murashkin, Dmitrii;
- Kaleschke, Lars;
- Willmes, Sascha;
- Thielke, Linda;
- Tian-Kunze, Xiangshan;
- Spreen, Gunnar;
- Haas, Christian
Publication type:
Article
Winter storms accelerate the demise of sea ice in the Atlantic sector of the Arctic Ocean.
Published in:
Scientific Reports, 2019, v. 9, n. 1, p. N.PAG, doi. 10.1038/s41598-019-45574-5
By:
- Graham, Robert M.;
- Itkin, Polona;
- Meyer, Amelie;
- Sundfjord, Arild;
- Spreen, Gunnar;
- Smedsrud, Lars H.;
- Liston, Glen E.;
- Cheng, Bin;
- Cohen, Lana;
- Divine, Dmitry;
- Fer, Ilker;
- Fransson, Agneta;
- Gerland, Sebastian;
- Haapala, Jari;
- Hudson, Stephen R.;
- Johansson, A. Malin;
- King, Jennifer;
- Merkouriadi, Ioanna;
- Peterson, Algot K.;
- Provost, Christine
Publication type:
Article
A systematic assessment of water vapor products in the Arctic: fronstantaneous measurements to monthly means.
Published in:
Atmospheric Measurement Techniques Discussions, 2021, p. 1, doi. 10.5194/amt-2020-491
By:
- Crewell, Susanne;
- Ebell, Kerstin;
- Konjari, Patrick;
- Mech, Mario;
- Nomokonova, Tatiana;
- Radovan, Ana;
- Strack, David;
- Triana-Gómez, Arantxa M.;
- Noël, Stefan;
- Scarlat, Raul;
- Spreen, Gunnar;
- Maturilli, Marion;
- Rinke, Annette;
- Gorodetskaya, Irina;
- Viceto, Carolina;
- August, Thomas;
- Schröder, Marc
Publication type:
Article
Sea ice and snow parameter retrieval from low frequency passive microwave remote sensing.
Published in:
Geophysical Research Abstracts, 2019, v. 21, p. 1
By:
- Huntemann, Marcus;
- Spreen, Gunnar
Publication type:
Article
Evaluation of the Arctic sea-ice drift and its dependence on near-surface wind and sea-ice concentration in a coupled regional climate model.
Published in:
Geophysical Research Abstracts, 2019, v. 21, p. 1
By:
- Yu, Xiaoyong;
- Rinke, Annette;
- Dorn, Wolfgang;
- Spreen, Gunnar;
- Sumata, Hiroshi;
- Luepkes, Christof
Publication type:
Article
Uncertainties in the retrieval of Arctic broadband albedo using satellite, airborne and ground-based optical instruments.
Published in:
Geophysical Research Abstracts, 2019, v. 21, p. 1
By:
- Pohl, Christine;
- Istomina, Larysa;
- Rozanov, Vladimir;
- Jäkel, Evelyn;
- Heygster, Georg;
- Spreen, Gunnar
Publication type:
Article
Sea ice-water classification on dual-polarized Sentinel-1 imagery during melting season.
Published in:
Geophysical Research Abstracts, 2019, v. 21, p. 1
By:
- Zhang, Yu;
- Zhu, Tingting;
- Spreen, Gunnar;
- melsheimer, Christian;
- Zhang, Shengkai;
- Li, Fei
Publication type:
Article
A systematic assessment of integrated water vapor products from satellite and reanalysis in the Arctic during ACLOUD.
Published in:
Geophysical Research Abstracts, 2019, v. 21, p. 1
By:
- Crewell, Susanne;
- Ebell, Kerstin;
- Nomokonova, Tatiana;
- Mech, Mario;
- Radovan, Ana;
- Gomes, Arantxa Triana;
- Heygster, Georg;
- Noël, Stefan;
- Spreen, Gunnar;
- Maturilli, Marion;
- Rinke, Annette;
- Griesche, Hannes;
- Viceto, Carolina;
- Gorodetskaya, Irina;
- Dick, Galina;
- Schröder, Marc
Publication type:
Article
Modeling the contribution of leads to sea spray aerosol in the high Arctic.
Published in:
Atmospheric Chemistry & Physics, 2024, v. 24, n. 21, p. 12107, doi. 10.5194/acp-24-12107-2024
By:
- Lapere, Rémy;
- Marelle, Louis;
- Rampal, Pierre;
- Brodeau, Laurent;
- Melsheimer, Christian;
- Spreen, Gunnar;
- Thomas, Jennie L.
Publication type:
Article
Asymmetries in cloud microphysical properties ascribed to sea ice leads via water vapour transport in the central Arctic.
Published in:
Atmospheric Chemistry & Physics, 2023, v. 23, n. 22, p. 14521, doi. 10.5194/acp-23-14521-2023
By:
- Saavedra Garfias, Pablo;
- Kalesse-Los, Heike;
- von Albedyll, Luisa;
- Griesche, Hannes;
- Spreen, Gunnar
Publication type:
Article
Constraints on simulated past Arctic amplification and lapse rate feedback from observations.
Published in:
Atmospheric Chemistry & Physics, 2023, v. 23, n. 17, p. 9963, doi. 10.5194/acp-23-9963-2023
By:
- Linke, Olivia;
- Quaas, Johannes;
- Baumer, Finja;
- Becker, Sebastian;
- Chylik, Jan;
- Dahlke, Sandro;
- Ehrlich, André;
- Handorf, Dörthe;
- Jacobi, Christoph;
- Kalesse-Los, Heike;
- Lelli, Luca;
- Mehrdad, Sina;
- Neggers, Roel A. J.;
- Riebold, Johannes;
- Saavedra Garfias, Pablo;
- Schnierstein, Niklas;
- Shupe, Matthew D.;
- Smith, Chris;
- Spreen, Gunnar;
- Verneuil, Baptiste
Publication type:
Article
Modeling Snow and Ice Microwave Emissions in the Arctic for a Multi‐Parameter Retrieval of Surface and Atmospheric Variables From Microwave Radiometer Satellite Data.
Published in:
Earth & Space Science, 2023, v. 10, n. 10, p. 1, doi. 10.1029/2023EA003177
By:
- Rückert, Janna E.;
- Huntemann, Marcus;
- Tonboe, Rasmus Tage;
- Spreen, Gunnar
Publication type:
Article
Method for detection of leads from Sentinel-1 SAR images.
Published in:
Annals of Glaciology, 2017, v. 59, n. 76pt2, p. 124, doi. 10.1017/aog.2018.6
By:
- Murashkin, Dmitrii;
- Spreen, Gunnar;
- Huntemann, Marcus;
- Dierking, Wolfgang
Publication type:
Article
Erroneous sea-ice concentration retrieval in the East Antarctic.
Published in:
Annals of Glaciology, 2017, v. 59, n. 76pt2, p. 201, doi. 10.1017/aog.2018.1
By:
- Lam, Hoi Ming;
- Spreen, Gunnar;
- Heygster, Georg;
- Melsheimer, Christian;
- Young, Neal W.
Publication type:
Article
Uncertainties in Antarctic sea-ice thickness retrieval from ICESat.
Published in:
Annals of Glaciology, 2015, v. 56, n. 69, p. 107, doi. 10.3189/2015AoG69A736
By:
- KERN, Stefan;
- SPREEN, Gunnar
Publication type:
Article
Sea-ice surface roughness estimates from airborne laser scanner and laser altimeter observations in Fram Strait and north of Svalbard.
Published in:
Annals of Glaciology, 2015, v. 56, n. 69, p. 235, doi. 10.3189/2015AoG69A717
By:
- BECKERS, Justin F.;
- RENNER, Angelika H. H.;
- SPREEN, Gunnar;
- GERLAND, Sebastian;
- HAAS, Christian
Publication type:
Article
Surface albedo measurements and surface type classification from helicopter-based observations during MOSAiC.
Published in:
Scientific Data, 2023, v. 10, n. 1, p. 1, doi. 10.1038/s41597-023-02492-6
By:
- Sperzel, Tim R.;
- Jäkel, Evelyn;
- Pätzold, Falk;
- Lampert, Astrid;
- Niehaus, Hannah;
- Spreen, Gunnar;
- Rosenburg, Sophie;
- Birnbaum, Gerit;
- Neckel, Niklas;
- Wendisch, Manfred
Publication type:
Article
Surface albedo measurements and surface type classification from helicopter-based observations during MOSAiC.
Published in:
Scientific Data, 2023, v. 10, n. 1, p. 1, doi. 10.1038/s41597-023-02492-6
By:
- Sperzel, Tim R.;
- Jäkel, Evelyn;
- Pätzold, Falk;
- Lampert, Astrid;
- Niehaus, Hannah;
- Spreen, Gunnar;
- Rosenburg, Sophie;
- Birnbaum, Gerit;
- Neckel, Niklas;
- Wendisch, Manfred
Publication type:
Article
Relevance of warm air intrusions for Arctic satellite sea ice climatologies.
Published in:
Cryosphere Discussions, 2023, p. 1, doi. 10.5194/tc-2023-69
By:
- Philip, Rostosky;
- Gunnar, Spreen
Publication type:
Article
Wind Transport of Snow Impacts Ka- and Ku-band Radar Signatures on Arctic Sea Ice.
Published in:
Cryosphere Discussions, 2022, p. 1, doi. 10.5194/tc-2022-116
By:
- Nandan, Vishnu;
- Willatt, Rosemary;
- Mallett, Robbie;
- Stroeve, Julienne;
- Geldsetzer, Torsten;
- Scharien, Randall;
- Tonboe, Rasmus;
- Landy, Jack;
- Clemens-Sewall, David;
- Jutila, Arttu;
- Wagner, David N.;
- Krampe, Daniela;
- Huntemann, Marcus;
- Yackel, John;
- Mahmud, Mallik;
- Jensen, David;
- Newman, Thomas;
- Hendricks, Stefan;
- Spreen, Gunnar;
- Macfarlane, Amy
Publication type:
Article
Sea ice classification of TerraSAR-X ScanSAR images for the MOSAiC expedition incorporating per-class incidence angle dependency of image texture.
Published in:
Cryosphere Discussions, 2022, p. 1, doi. 10.5194/tc-2022-86
By:
- Guo, Wenkai;
- Itkin, Polona;
- Singha, Suman;
- Doulgeris, Anthony Paul;
- Johansson, Malin;
- Spreen, Gunnar
Publication type:
Article
Rain-on-Snow (ROS) Understudied in Sea Ice Remote Sensing: A Multi-Sensor Analysis of ROS during MOSAiC.
Published in:
Cryosphere Discussions, 2022, p. 1, doi. 10.5194/tc-2021-383
By:
- Stroeve, Julienne;
- Nandan, Vishnu;
- Willatt, Rosemary;
- Dadic, Ruzica;
- Rotosky, Philip;
- Gallagher, Michael;
- Mallett, Robbie;
- Barrett, Andrew;
- Hendricks, Stefan;
- Tonboe, Rasmus;
- Serreze, Mark;
- Thielke, Linda;
- Spreen, Gunnar;
- Newman, Thomas;
- Yackel, John;
- Ricker, Robert;
- Tsamados, Michel;
- Macfarlane, Amy;
- Hannula, Henna-Reetta;
- Schneebeli, Martin
Publication type:
Article
Antarctic sea ice types from active and passive microwave remote sensing.
Published in:
Cryosphere Discussions, 2022, p. 1, doi. 10.5194/tc-2021-381
By:
- Melsheimer, Christian;
- Spreen, Gunnar;
- Ye, Yufang;
- Shokr, Mohammed
Publication type:
Article
Weddell Sea Polynya analysis using SMOS-SMAP Sea Ice Thickness Retrieval.
Published in:
Cryosphere Discussions, 2021, p. 1, doi. 10.5194/tc-2021-138
By:
- Mchedlishvili, Alexander;
- Spreen, Gunnar;
- Melsheimer, Christian;
- Huntemann, Marcus
Publication type:
Article
The MOSAiC Drift: Ice conditions from space and comparison with previous years.
Published in:
Cryosphere Discussions, 2021, p. 1, doi. 10.5194/tc-2021-80
By:
- Krumpen, Thomas;
- von Albedyll, Luisa;
- Goessling, Helge F.;
- Hendricks, Stefan;
- Juhls, Bennet;
- Spreen, Gunnar;
- Willmes, Sascha;
- Belter, H. Jakob;
- Dethloff, Klaus;
- Haas, Christian;
- Kaleschke, Lars;
- Katlein, Christian;
- Xiangshan Tian-Kunze;
- Ricker, Robert;
- Rostosky, Philip;
- Rueckert, Janna;
- Suman Singha;
- Sokolova, Julia
Publication type:
Article
Sea ice and water classification on dual-polarized Sentinel-1 imagery during melting season.
Published in:
Cryosphere Discussions, 2021, p. 1, doi. 10.5194/tc-2021-85
By:
- Yu Zhang;
- Tingting Zhu;
- Spreen, Gunnar;
- Melsheimer, Christian;
- Huntemann, Marcus;
- Hughes, Nick;
- Shengkai Zhang;
- Fei Li
Publication type:
Article
Implications of surface flooding on airborne thickness measurements of snow on sea ice.
Published in:
Cryosphere Discussions, 2020, p. 1, doi. 10.5194/tc-2020-168
By:
- Rösel, Anja;
- Louise Farrell, Sinead;
- Nandan, Vishnu;
- Richter-Menge, Jaqueline;
- Spreen, Gunnar;
- V. Divine, Dimitry;
- Gallet, Jean-Charles;
- Gerland, Sebastian
Publication type:
Article
Surface-Based Ku- and Ka-band Polarimetric Radar for Sea Ice Studies.
Published in:
Cryosphere Discussions, 2020, p. 1, doi. 10.5194/tc-2020-151
By:
- Stroeve, Julienne;
- Nandan, Vishnu;
- Willatt, Rosemary;
- Tonboe, Rasmus;
- Hendricks, Stefan;
- Ricker, Robert;
- Mead, James;
- Huntemann, Marcus;
- Itkin, Polona;
- Schneebeli, Martin;
- Krampe, Daniela;
- Spreen, Gunnar;
- Wilkinson, Jeremy;
- Matero, Ilkka;
- Hoppmann, Mario;
- Mallett, Robbie;
- Tsamados, Michel
Publication type:
Article
Evaluation of Arctic sea-ice drift and its dependency on near-surface wind and sea-ice concentration and thickness in the coupled regional climate model HIRHAM-NAOSIM.
Published in:
Cryosphere Discussions, 2019, p. 1, doi. 10.5194/tc-2019-183
By:
- Xiaoyong Yu;
- Rinke, Annette;
- Dorn, Wolfgang;
- Spreen, Gunnar;
- Lüpkes, Christof;
- Hiroshi Sumata;
- Gryanik, Vladimir M.
Publication type:
Article
Broadband albedo of Arctic sea ice from MERIS optical data.
Published in:
Cryosphere Discussions, 2019, p. 1, doi. 10.5194/tc-2019-62
By:
- Pohl, Christine;
- Istomina, Larysa;
- Tietsche, Steffen;
- Jäkel, Evelyn;
- Stapf, Johannes;
- Spreen, Gunnar;
- Heygster, Georg
Publication type:
Article
Observation of the 2018 North Greenland polynya with a new merged optical and passive microwave sea ice concentration dataset.
Published in:
Cryosphere Discussions, 2019, p. 1, doi. 10.5194/tc-2019-23
By:
- Ludwig, Valentin;
- Spreen, Gunnar;
- Haas, Christian;
- Istomina, Larysa;
- Kauker, Frank;
- Murashkin, Dmitrii
Publication type:
Article
Combined SMAP/SMOS Thin Sea Ice Thickness Retrieval.
Published in:
2017
By:
- Pațilea, Cătălin;
- Heygster, Georg;
- Huntemann, Marcus;
- Spreen, Gunnar
Publication type:
Abstract
Reflective properties of melt ponds on sea ice.
Published in:
2017
By:
- Malinka, Aleksey;
- Zege, Eleonora;
- Istomina, Larysa;
- Heygster, Georg;
- Spreen, Gunnar;
- Perovich, Donald;
- Polashenski, Chris
Publication type:
Abstract
Sea Ice Remote Sensing—Recent Developments in Methods and Climate Data Sets.
Published in:
Surveys in Geophysics, 2023, v. 44, n. 5, p. 1653, doi. 10.1007/s10712-023-09781-0
By:
- Sandven, Stein;
- Spreen, Gunnar;
- Heygster, Georg;
- Girard-Ardhuin, Fanny;
- Farrell, Sinéad L.;
- Dierking, Wolfgang;
- Allard, Richard A.
Publication type:
Article
Reducing Weather Influences on an 89 GHz Sea Ice Concentration Algorithm in the Arctic Using Retrievals From an Optimal Estimation Method.
Published in:
Journal of Geophysical Research. Oceans, 2022, v. 127, n. 9, p. 1, doi. 10.1029/2019JC015912
By:
- Lu, Junshen;
- Scarlat, Raul;
- Heygster, Georg;
- Spreen, Gunnar
Publication type:
Article
Warm Atlantic Water Explains Observed Sea Ice Melt Rates North of Svalbard.
Published in:
Journal of Geophysical Research. Oceans, 2020, v. 125, n. 8, p. 1, doi. 10.1029/2019JC015662
By:
- Duarte, Pedro;
- Sundfjord, Arild;
- Meyer, Amelie;
- Hudson, Stephen R.;
- Spreen, Gunnar;
- Smedsrud, Lars H.
Publication type:
Article
Arctic Sea Ice Volume Export Through FramStrait From 1992 to 2014.
Published in:
Journal of Geophysical Research. Oceans, 2020, v. 125, n. 6, p. 1, doi. 10.1029/2019JC016039
By:
- Spreen, Gunnar;
- de Steur, Laura;
- Divine, Dmitry;
- Gerland, Sebastian;
- Hansen, Edmond;
- Kwok, Ron
Publication type:
Article
Sea Ice and Atmospheric Parameter Retrieval From Satellite Microwave Radiometers: Synergy of AMSR2 and SMOS Compared With the CIMR Candidate Mission.
Published in:
Journal of Geophysical Research. Oceans, 2020, v. 125, n. 3, p. 1, doi. 10.1029/2019JC015749
By:
- Scarlat, Raul Cristian;
- Spreen, Gunnar;
- Heygster, Georg;
- Huntemann, Marcus;
- Paţilea, Cătălin;
- Pedersen, Leif Toudal;
- Saldo, Roberto
Publication type:
Article
Snow Depth Retrieval on Arctic Sea Ice From Passive Microwave Radiometers—Improvements and Extensions to Multiyear Ice Using Lower Frequencies.
Published in:
Journal of Geophysical Research. Oceans, 2018, v. 123, n. 10, p. 7120, doi. 10.1029/2018JC014028
By:
- Rostosky, Philip;
- Spreen, Gunnar;
- Farrell, Sinead L.;
- Frost, Torben;
- Heygster, Georg;
- Melsheimer, Christian
Publication type:
Article
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.
Published in:
Journal of Geophysical Research. Oceans, 2018, v. 123, n. 2, p. 1123, doi. 10.1002/2017JC013233
By:
- King, Jennifer;
- Skourup, Henriette;
- Hvidegaard, Sine M.;
- Rösel, Anja;
- Gerland, Sebastian;
- Spreen, Gunnar;
- Polashenski, Chris;
- Helm, Veit;
- Liston, Glen E.
Publication type:
Article
Effects of sea-ice and biogeochemical processes and storms on under-ice water fCO<sub>2</sub> during the winter-spring transition in the high Arctic Ocean: Implications for sea-air CO<sub>2</sub> fluxes.
Published in:
Journal of Geophysical Research. Oceans, 2017, v. 122, n. 7, p. 5566, doi. 10.1002/2016JC012478
By:
- Fransson, Agneta;
- Chierici, Melissa;
- Skjelvan, Ingunn;
- Olsen, Are;
- Assmy, Philipp;
- Peterson, Algot K.;
- Spreen, Gunnar;
- Ward, Brian
Publication type:
Article
Thin ice and storms: Sea ice deformation from buoy arrays deployed during N‐ICE2015.
Published in:
Journal of Geophysical Research. Oceans, 2017, v. 122, n. 6, p. 4661, doi. 10.1002/2016JC012403
By:
- Itkin, Polona;
- Spreen, Gunnar;
- Cheng, Bin;
- Doble, Martin;
- Girard‐Ardhuin, Fanny;
- Haapala, Jari;
- Hughes, Nick;
- Kaleschke, Lars;
- Nicolaus, Marcel;
- Wilkinson, Jeremy
Publication type:
Article
Sea-ice thickness from field measurements in the northwestern Barents Sea.
Published in:
Journal of Geophysical Research. Oceans, 2017, v. 122, n. 2, p. 1497, doi. 10.1002/2016JC012199
By:
- King, Jennifer;
- Spreen, Gunnar;
- Gerland, Sebastian;
- Haas, Christian;
- Hendricks, Stefan;
- Kaleschke, Lars;
- Wang, Caixin
Publication type:
Article
Improved cloud detection over sea ice and snow during Arctic summer using MERIS data.
Published in:
Atmospheric Measurement Techniques Discussions, 2020, p. 1, doi. 10.5194/amt-2019-413
By:
- Istomina, Larysa;
- Marks, Henrik;
- Huntemann, Marcus;
- Heygster, Georg;
- Spreen, Gunnar
Publication type:
Article