Zobrazeno 1 - 10
of 59
pro vyhledávání: '"SEBASTIAN B. SIMONSEN"'
Publikováno v:
Journal of Glaciology, Vol 68, Pp 503-517 (2022)
Basal conditions play an essential role in the dynamics of outlet glaciers, but direct observations at the bed of glaciers are challenging to obtain. Instead, inverse methods can be used to infer basal parameters from surface observations. Here, we u
Externí odkaz:
https://doaj.org/article/90f9b016e80e432f895ef6ea3cf2ee95
Publikováno v:
GEUS Bulletin, Vol 47, Pp 1-8 (2021)
The elevation of ice sheets changes due to climate change, and satellite altimetry is the preferred tool for measuring ice sheet-wide height changes. In situ validation is needed to ensure the quality of the observed elevation changes, but the cost o
Externí odkaz:
https://doaj.org/article/8a82c21a681a46e995464f84c21761a3
Autor:
JESSICA M.D. LUNDIN, C. MAX STEVENS, ROBERT ARTHERN, CHRISTO BUIZERT, ANAIS ORSI, STEFAN R.M. LIGTENBERG, SEBASTIAN B. SIMONSEN, EVAN CUMMINGS, RICHARD ESSERY, WILL LEAHY, PAUL HARRIS, MICHIEL M. HELSEN, EDWIN D. WADDINGTON
Publikováno v:
Journal of Glaciology, Vol 63, Pp 401-422 (2017)
Evolution of cold dry snow and firn plays important roles in glaciology; however, the physical formulation of a densification law is still an active research topic. We forced eight firn-densification models and one seasonal-snow model in six differen
Externí odkaz:
https://doaj.org/article/4f6b06da84474268adbe406392f21de4
Autor:
Ruth Mottram, Sebastian B. Simonsen, Synne Høyer Svendsen, Valentina R. Barletta, Louise Sandberg Sørensen, Thomas Nagler, Jan Wuite, Andreas Groh, Martin Horwath, Job Rosier, Anne Solgaard, Christine S. Hvidberg, Rene Forsberg
Publikováno v:
Remote Sensing, Vol 11, Iss 12, p 1407 (2019)
The Greenland ice sheet is a major contributor to sea level rise, adding on average 0.47 ± 0.23 mm year − 1 to global mean sea level between 1991 and 2015. The cryosphere as a whole has contributed around 45% of observed global sea level rise sinc
Externí odkaz:
https://doaj.org/article/aa5a96bb62e04d1bbd34e325e8bbc2f8
Autor:
Louise Sandberg Sørensen, Sebastian B. Simonsen, Kirsty Langley, Laurence Gray, Veit Helm, Johan Nilsson, Lars Stenseng, Henriette Skourup, René Forsberg, Malcolm W. J. Davidson
Publikováno v:
Remote Sensing, Vol 10, Iss 9, p 1354 (2018)
The study presented here is focused on the assessment of surface elevations derived from CryoSat-2 SARIn level 1b data over the Austfonna ice cap, Svalbard, in 2016. The processing chain that must be applied to the CryoSat-2 waveforms to derive heigh
Externí odkaz:
https://doaj.org/article/1a6d8e21016a440ba603d7077daf268c
Autor:
Emiliano Cimoli, Marco Marcer, Baptiste Vandecrux, Carl E. Bøggild, Guy Williams, Sebastian B. Simonsen
Publikováno v:
Remote Sensing, Vol 9, Iss 11, p 1144 (2017)
The repeat acquisition of high-resolution snow depth measurements has important research and civil applications in the Arctic. Currently the surveying methods for capturing the high spatial and temporal variability of the snowpack are expensive, in p
Externí odkaz:
https://doaj.org/article/442e53b4db324a42a8ebf77c128d0c10
Autor:
Inès N. Otosaka, Andrew Shepherd, Erik R. Ivins, Nicole-Jeanne Schlegel, Charles Amory, Michiel R. van den Broeke, Martin Horwath, Ian Joughin, Michalea D. King, Gerhard Krinner, Sophie Nowicki, Anthony J. Payne, Eric Rignot, Ted Scambos, Karen M. Simon, Benjamin E. Smith, Louise S. Sørensen, Isabella Velicogna, Pippa L. Whitehouse, Geruo A, Cécile Agosta, Andreas P. Ahlstrøm, Alejandro Blazquez, William Colgan, Marcus E. Engdahl, Xavier Fettweis, Rene Forsberg, Hubert Gallée, Alex Gardner, Lin Gilbert, Noel Gourmelen, Andreas Groh, Brian C. Gunter, Christopher Harig, Veit Helm, Shfaqat Abbas Khan, Christoph Kittel, Hannes Konrad, Peter L. Langen, Benoit S. Lecavalier, Chia-Chun Liang, Bryant D. Loomis, Malcolm McMillan, Daniele Melini, Sebastian H. Mernild, Ruth Mottram, Jeremie Mouginot, Johan Nilsson, Brice Noël, Mark E. Pattle, William R. Peltier, Nadege Pie, Mònica Roca, Ingo Sasgen, Himanshu V. Save, Ki-Weon Seo, Bernd Scheuchl, Ernst J. O. Schrama, Ludwig Schröder, Sebastian B. Simonsen, Thomas Slater, Giorgio Spada, Tyler C. Sutterley, Bramha Dutt Vishwakarma, Jan Melchior van Wessem, David Wiese, Wouter van der Wal, Bert Wouters
Publikováno v:
Earth System Science Data
Earth System Science Data, 2023, 15, pp.1597-1616. ⟨10.5194/essd-15-1597-2023⟩
Otosaka, I N, Shepherd, A, Ivins, E R, Schlegel, N, Amory, C, Van den broeke, M R, Horwath, M, Joughin, I, King, M D, Krinner, G, Nowicki, S, Payne, A J, Rignot, E, Scambos, T, Simon, K M, Smith, B E, Sørensen, L S, Velicogna, I, Whitehouse, P L, A, G, Agosta, C, Ahlstrøm, A P, Blazquez, A, Colgan, W, Engdahl, M E, Fettweis, X, Forsberg, R, Gallée, H, Gardner, A, Gilbert, L, Gourmelen, N, Groh, A, Gunter, B C, Harig, C, Helm, V, Khan, S A, Kittel, C, Konrad, H, Langen, P L, Lecavalier, B S, Liang, C, Loomis, B D, Mcmillan, M, Melini, D, Mernild, S H, Mottram, R, Mouginot, J, Nilsson, J, Noël, B, Pattle, M E, Peltier, W R, Pie, N, Roca, M, Sasgen, I, Save, H V, Seo, K, Scheuchl, B, Schrama, E J O, Schröder, L, Simonsen, S B, Slater, T, Spada, G, Sutterley, T C, Vishwakarma, B D, Van wessem, J M, Wiese, D, Van der wal, W & Wouters, B 2023, ' Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020 ', Earth System Science Data, vol. 15, no. 4, pp. 1597-1616 . https://doi.org/10.5194/essd-15-1597-2023
Earth System Science Data, 15(4)
Otosaka, I N, Shepherd, A, Ivins, E R, Schlegel, N-J, Amory, C, van den Broeke, M R, Horwath, M, Joughin, I, King, M D, Krinner, G, Nowicki, S, Payne, A J, Rignot, E, Scambos, T, Simon, K M, Smith, B E, Sørensen, L S, Velicogna, I, Whitehouse, P L, A, G, Agosta, C, Ahlstrøm, A P, Blazquez, A, Colgan, W, Engdahl, M E, Fettweis, X, Forsberg, R, Gallée, H, Gardner, A, Gilbert, L, Gourmelen, N, Groh, A, Gunter, B C, Harig, C, Helm, V, Khan, S A, Kittel, C, Konrad, H, Langen, P L, Lecavalier, B S, Liang, C-C, Loomis, B D, McMillan, M, Melini, D, Mernild, S H, Mottram, R, Mouginot, J, Nilsson, J, Noël, B, Pattle, M E, Peltier, W R, Pie, N, Roca, M, Sasgen, I, Save, H V, Seo, K-W, Scheuchl, B, Schrama, E J O, Schröder, L, Simonsen, S B, Slater, T, Spada, G, Sutterley, T C, Vishwakarma, B D, van Wessem, J M, Wiese, D, van der Wal, W & Wouters, B 2023, ' Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020 ', Earth System Science Data, bind 15, nr. 4, s. 1597-1616 . https://doi.org/10.5194/essd-15-1597-2023
Otosaka, I N, Shepherd, A, Ivins, E R, Schlegel, N J, Amory, C, Van Den Broeke, M R, Horwath, M, Joughin, I, King, M D, Krinner, G, Nowicki, S, Payne, A J, Rignot, E, Scambos, T, Simon, K M, Smith, B E, Sørensen, L S, Velicogna, I, Whitehouse, P L, Geruo, A, Agosta, C, Ahlstrøm, A P, Blazquez, A, Colgan, W, Engdahl, M E, Fettweis, X, Forsberg, R, Gallée, H, Gardner, A, Gilbert, L, Gourmelen, N, Groh, A, Gunter, B C, Harig, C, Helm, V, Khan, S A, Kittel, C, Konrad, H, Langen, P L, Lecavalier, B S, Liang, C C, Loomis, B D, McMillan, M, Melini, D, Mernild, S H, Mottram, R, Mouginot, J, Nilsson, J, Noël, B, Pattle, M E, Peltier, W R, Pie, N, Roca, M, Sasgen, I, Save, H V, Seo, K W, Scheuchl, B, Schrama, E J O, Schröder, L, Simonsen, S B, Slater, T, Spada, G, Sutterley, T C, Vishwakarma, B D, Van Wessem, J M, Wiese, D, Van Der Wal, W & Wouters, B 2023, ' Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020 ', Earth System Science Data, vol. 15, no. 4, pp. 1597-1616 . https://doi.org/10.5194/essd-15-1597-2023
Earth System Science Data, 2023, 15, pp.1597-1616. ⟨10.5194/essd-15-1597-2023⟩
Otosaka, I N, Shepherd, A, Ivins, E R, Schlegel, N, Amory, C, Van den broeke, M R, Horwath, M, Joughin, I, King, M D, Krinner, G, Nowicki, S, Payne, A J, Rignot, E, Scambos, T, Simon, K M, Smith, B E, Sørensen, L S, Velicogna, I, Whitehouse, P L, A, G, Agosta, C, Ahlstrøm, A P, Blazquez, A, Colgan, W, Engdahl, M E, Fettweis, X, Forsberg, R, Gallée, H, Gardner, A, Gilbert, L, Gourmelen, N, Groh, A, Gunter, B C, Harig, C, Helm, V, Khan, S A, Kittel, C, Konrad, H, Langen, P L, Lecavalier, B S, Liang, C, Loomis, B D, Mcmillan, M, Melini, D, Mernild, S H, Mottram, R, Mouginot, J, Nilsson, J, Noël, B, Pattle, M E, Peltier, W R, Pie, N, Roca, M, Sasgen, I, Save, H V, Seo, K, Scheuchl, B, Schrama, E J O, Schröder, L, Simonsen, S B, Slater, T, Spada, G, Sutterley, T C, Vishwakarma, B D, Van wessem, J M, Wiese, D, Van der wal, W & Wouters, B 2023, ' Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020 ', Earth System Science Data, vol. 15, no. 4, pp. 1597-1616 . https://doi.org/10.5194/essd-15-1597-2023
Earth System Science Data, 15(4)
Otosaka, I N, Shepherd, A, Ivins, E R, Schlegel, N-J, Amory, C, van den Broeke, M R, Horwath, M, Joughin, I, King, M D, Krinner, G, Nowicki, S, Payne, A J, Rignot, E, Scambos, T, Simon, K M, Smith, B E, Sørensen, L S, Velicogna, I, Whitehouse, P L, A, G, Agosta, C, Ahlstrøm, A P, Blazquez, A, Colgan, W, Engdahl, M E, Fettweis, X, Forsberg, R, Gallée, H, Gardner, A, Gilbert, L, Gourmelen, N, Groh, A, Gunter, B C, Harig, C, Helm, V, Khan, S A, Kittel, C, Konrad, H, Langen, P L, Lecavalier, B S, Liang, C-C, Loomis, B D, McMillan, M, Melini, D, Mernild, S H, Mottram, R, Mouginot, J, Nilsson, J, Noël, B, Pattle, M E, Peltier, W R, Pie, N, Roca, M, Sasgen, I, Save, H V, Seo, K-W, Scheuchl, B, Schrama, E J O, Schröder, L, Simonsen, S B, Slater, T, Spada, G, Sutterley, T C, Vishwakarma, B D, van Wessem, J M, Wiese, D, van der Wal, W & Wouters, B 2023, ' Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020 ', Earth System Science Data, bind 15, nr. 4, s. 1597-1616 . https://doi.org/10.5194/essd-15-1597-2023
Otosaka, I N, Shepherd, A, Ivins, E R, Schlegel, N J, Amory, C, Van Den Broeke, M R, Horwath, M, Joughin, I, King, M D, Krinner, G, Nowicki, S, Payne, A J, Rignot, E, Scambos, T, Simon, K M, Smith, B E, Sørensen, L S, Velicogna, I, Whitehouse, P L, Geruo, A, Agosta, C, Ahlstrøm, A P, Blazquez, A, Colgan, W, Engdahl, M E, Fettweis, X, Forsberg, R, Gallée, H, Gardner, A, Gilbert, L, Gourmelen, N, Groh, A, Gunter, B C, Harig, C, Helm, V, Khan, S A, Kittel, C, Konrad, H, Langen, P L, Lecavalier, B S, Liang, C C, Loomis, B D, McMillan, M, Melini, D, Mernild, S H, Mottram, R, Mouginot, J, Nilsson, J, Noël, B, Pattle, M E, Peltier, W R, Pie, N, Roca, M, Sasgen, I, Save, H V, Seo, K W, Scheuchl, B, Schrama, E J O, Schröder, L, Simonsen, S B, Slater, T, Spada, G, Sutterley, T C, Vishwakarma, B D, Van Wessem, J M, Wiese, D, Van Der Wal, W & Wouters, B 2023, ' Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020 ', Earth System Science Data, vol. 15, no. 4, pp. 1597-1616 . https://doi.org/10.5194/essd-15-1597-2023
International audience; Ice losses from the Greenland and Antarctic ice sheets have accelerated since the 1990s, accounting for a significant increase in the global mean sea level. Here, we present a new 29-year record of ice sheet mass balance from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f9fc7b4f9099dac8ecbf8c6a152726b
https://doi.org/10.5194/essd-15-1597-2023
https://doi.org/10.5194/essd-15-1597-2023
Autor:
William Colgan, Kenneth D Mankoff, Kristian K Kjeldsen, Anders A Bjørk, Jason E Box, Sebastian B Simonsen, Louise S Sørensen, S. Abbas Khan, Anne M Solgaard, Rene Forsberg, Henriette Skourup, Lars Stenseng, Steen S Kristensen, Sine M Hvidegaard, Michele Citterio, Nanna Karlsson, Xavier Fettweis, Andreas P Ahlstrøm, Signe B Andersen, Dirk van As, Robert S Fausto
Publikováno v:
Geological Survey of Denmark and Greenland Bulletin, Vol 43, p e2019430201 (2019)
The Programme for Monitoring of the Greenland Ice Sheet (PROMICE) has measured ice-sheet elevation and thickness via repeat airborne surveys circumscribing the ice sheet at an average elevation of 1708 ± 5 m (Sørensen et al. 2018). We refer to this
Externí odkaz:
https://doaj.org/article/a054ae8e3b24456fb2434870c94b86dd
Autor:
Nicolaj Hansen, Louise S. Sørensen, Giorgio Spada, Daniele Melini, Rene Forsberg, Ruth Mottram, Sebastian B. Simonsen
We use the land-ice surface height data product (ATL06 release 5) from NASA’s latest satellite laser altimetry, the Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) to compute surface elevation changes (SEC) from October 2018 to September 2021
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcadbeeeae84f0b9ad47ec3ec9f8b596
https://doi.org/10.5194/egusphere-egu23-12349
https://doi.org/10.5194/egusphere-egu23-12349
Recent research has demonstrated how Greenland Ice Sheet (GrIS) near-surface density and wavelength-scale surface roughness can be estimated from satellite radar altimetry surface echo powers by way of the Radar Statistical Reconnaissance (RSR) techn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97e0a3bc6edb04cb902f11c62bef54f0
https://doi.org/10.5194/egusphere-egu23-11155
https://doi.org/10.5194/egusphere-egu23-11155