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  Subjects -> METEOROLOGY (Total: 106 journals)
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The Cryosphere (TC)
Journal Prestige (SJR): 3.034
Citation Impact (citeScore): 5
Number of Followers: 8  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1994-0416 - ISSN (Online) 1994-0424
Published by Copernicus Publications Homepage  [54 journals]
  • Predicting the steady-state isochronal stratigraphy of ice shelves using
           observations and modeling

    • Abstract: Predicting the steady-state isochronal stratigraphy of ice shelves using observations and modeling
      Vjeran Višnjević, Reinhard Drews, Clemens Schannwell, Inka Koch, Steven Franke, Daniela Jansen, and Olaf Eisen
      The Cryosphere, 16, 4763–4777, https://doi.org/10.5194/tc-16-4763-2022, 2022
      We present a simple way to model the internal layers of an ice shelf and apply the method to the Roi Baudouin Ice Shelf in East Antarctica. Modeled results are compared to measurements obtained by radar. We distinguish between ice directly formed on the shelf and ice transported from the ice sheet, and we map the spatial changes in the volume of the locally accumulated ice. In this context, we discuss the sensitivity of the ice shelf to future changes in surface accumulation and basal melt.
      PubDate: Wed, 23 Nov 2022 09:20:05 +010
      DOI: 10.5194/tc-16-4763-2022 2022

       
  • Identifying mountain permafrost degradation by repeating historical
           ERT-measurements

    • Abstract: Identifying mountain permafrost degradation by repeating historical ERT-measurements
      Johannes Buckel, Jan Mudler, Rainer Gardeweg, Christian Hauck, Christin Hilbich, Regula Frauenfelder, Christof Kneisel, Sebastian Buchelt, Jan Henrik Blöthe, Andreas Hördt, and Matthias Bücker
      The Cryosphere Discuss., https//doi.org/10.5194/tc-2022-207,2022
      Preprint under review for TC (discussion: open, 0 comments)
      This study reveals permafrost melting by repeating old geophysical measurements at three alpine sites. The compared data indicates that ice-poor permafrost is highly affected by temperature warming. The melting of ice-rich permafrost could not be identified. However, complex geomorphic processes are responsible for this rather than external temperature change. We suspect permafrost degradation here as well. In addition, we introduce a new current injection method facilitating data acquisition.
      PubDate: Wed, 23 Nov 2022 09:20:05 +010
      DOI: 10.5194/tc-2022-2072022

       
  • Co-registration and residual correction of digital elevation models: A
           comparative study

    • Abstract: Co-registration and residual correction of digital elevation models: A comparative study
      Tao Li, Yuanlin Hu, Bin Liu, Liming Jiang, Hansheng Wang, and Xiang Shen
      The Cryosphere Discuss., https//doi.org/10.5194/tc-2022-205,2022
      Preprint under review for TC (discussion: open, 0 comments)
      Raw DEMs are often misaligned with each other due to georeferencing errors, and a co-registration process is required before DEM differencing. We present a comparative analysis of the two classical DEM co-registration and three residual correction algorithms. The experimental results show that rotation and scale biases should be considered in DEM co-registration. The new non-parametric regression technique can eliminate the complex systematic errors, which existed in the co-registration results.
      PubDate: Wed, 23 Nov 2022 09:20:05 +010
      DOI: 10.5194/tc-2022-2052022

       
  • Analysis of micro-seismicity in sea ice with deep learning and Bayesian
           inference: application to high-resolution thickness monitoring

    • Abstract: Analysis of micro-seismicity in sea ice with deep learning and Bayesian inference: application to high-resolution thickness monitoring
      Ludovic Moreau, Léonard Seydoux, Jérôme Weiss, and Michel Campillo
      The Cryosphere Discuss., https//doi.org/10.5194/tc-2022-212,2022
      Preprint under review for TC (discussion: open, 0 comments)
      In the perspective of upcoming seasonally ice-free Arctic, understanding the dynamics of sea ice in the changing climate is a major challenge in oceanography and climatology. It is therefore essential to monitor sea ice properties with fine temporal and spatial resolution. In this paper, we show that icequakes recorded on sea ice can be processed with artificial intelligence to produce accurate maps of sea ice thickness with high temporal and spatial resolutions.
      PubDate: Thu, 17 Nov 2022 05:10:38 +010
      DOI: 10.5194/tc-2022-2122022

       
  • Estimating snow accumulation and ablation with L-band InSAR

    • Abstract: Estimating snow accumulation and ablation with L-band InSAR
      Jack Tarricone, Ryan W. Webb, Hans-Peter Marshall, Anne W. Nolin, and Franz J. Meyer
      The Cryosphere Discuss., https//doi.org/10.5194/tc-2022-224,2022
      Preprint under review for TC (discussion: open, 0 comments)
      Mountain snowmelt provides water for billions of people across the globe. Despite its importance, we cannot currently monitor how much water is in mountain snowpack from satellites. In this research, we test the ability of an experimental remote sensing technique to monitor snow from an airplane in preparation for the same sensor being launched on a future NASA satellite. We found the method worked better than expected in estimating important snowpack properties.
      PubDate: Wed, 16 Nov 2022 05:10:38 +010
      DOI: 10.5194/tc-2022-2242022

       
  • Influence of fast ice on future ice shelf melting in the Totten Glacier
           area, East Antarctica

    • Abstract: Influence of fast ice on future ice shelf melting in the Totten Glacier area, East Antarctica
      Guillian Van Achter, Thierry Fichefet, Hugues Goosse, and Eduardo Moreno-Chamarro
      The Cryosphere, 16, 4745–4761, https://doi.org/10.5194/tc-16-4745-2022, 2022
      We investigate the changes in ocean–ice interactions in the Totten Glacier area between the last decades (1995–2014) and the end of the 21st century (2081–2100) under warmer climate conditions. By the end of the 21st century, the sea ice is strongly reduced, and the ocean circulation close to the coast is accelerated. Our research highlights the importance of including representations of fast ice to simulate realistic ice shelf melt rate increase in East Antarctica under warming conditions.
      PubDate: Tue, 15 Nov 2022 05:10:38 +010
      DOI: 10.5194/tc-16-4745-2022 2022

       
  • Broadband spectral induced polarization for the detection of Permafrost
           and an approach to ice content estimation – a case study from Yakutia,
           Russia

    • Abstract: Broadband spectral induced polarization for the detection of Permafrost and an approach to ice content estimation – a case study from Yakutia, Russia
      Jan Mudler, Andreas Hördt, Dennis Kreith, Madhuri Sugand, Kirill Bazhin, Lyudmila Lebedeva, and Tino Radić
      The Cryosphere, 16, 4727–4744, https://doi.org/10.5194/tc-16-4727-2022, 2022
      The spectral electrical signal of ice exhibits a strong characteristic behaviour in the frequency range from 100 Hz to 100 kHz, due to polarization effects. With our geophysical method, we can analyse this characteristic to detect subsurface ice. Moreover, we use a model to quantify 2-D ground ice content based on our data. The potential of our new measurement device is showed up. Data were taken on a permafrost site in Yakutia, and the results are in agreement with other existing field data.
      PubDate: Mon, 14 Nov 2022 05:10:38 +010
      DOI: 10.5194/tc-16-4727-2022 2022

       
  • Can Saharan dust deposition impact snowpack stability in the French
           Alps'

    • Abstract: Can Saharan dust deposition impact snowpack stability in the French Alps'
      Oscar Dick, Léo Viallon-Galinier, François Tuzet, Pascal Hagenmuller, Mathieu Fructus, Benjamin Reuter, Matthieu Lafaysse, and Marie Dumont
      The Cryosphere Discuss., https//doi.org/10.5194/tc-2022-219,2022
      Preprint under review for TC (discussion: open, 0 comments)
      Saharan dust deposition can drastically change the snow color turning mountain landscapes into sepia scenes. Dust increases the absorption of solar energy by the snow cover and thus modifies the snow evolution, and potentially the avalanche risk. Here we show that dust can lead to increased or decreased snowpack stability depending on the snow and meteorological conditions after the deposition event. We also show that wet snow avalanches happens earlier in the season due to the presence of dust.
      PubDate: Mon, 14 Nov 2022 05:10:38 +010
      DOI: 10.5194/tc-2022-2192022

       
  • The contribution of Humboldt Glacier, northern Greenland, to sea-level
           rise through 2100 constrained by recent observations of speedup and
           retreat

    • Abstract: The contribution of Humboldt Glacier, northern Greenland, to sea-level rise through 2100 constrained by recent observations of speedup and retreat
      Trevor R. Hillebrand, Matthew J. Hoffman, Mauro Perego, Stephen F. Price, and Ian M. Howat
      The Cryosphere, 16, 4679–4700, https://doi.org/10.5194/tc-16-4679-2022, 2022
      We estimate that Humboldt Glacier, northern Greenland, will contribute 5.2–8.7 mm to global sea level in 2007–2100, using an ensemble of model simulations constrained by observations of glacier retreat and speedup. This is a significant fraction of the 40–140 mm from the whole Greenland Ice Sheet predicted by the recent ISMIP6 multi-model ensemble, suggesting that calibrating models against observed velocity changes could result in higher estimates of 21st century sea-level rise from Greenland.
      PubDate: Fri, 11 Nov 2022 22:55:56 +010
      DOI: 10.5194/tc-16-4679-2022 2022

       
  • Sub-seasonal variability of supraglacial ice cliff melt rates and
           associated processes from time-lapse photogrammetry

    • Abstract: Sub-seasonal variability of supraglacial ice cliff melt rates and associated processes from time-lapse photogrammetry
      Marin Kneib, Evan S. Miles, Pascal Buri, Stefan Fugger, Michael McCarthy, Thomas E. Shaw, Zhao Chuanxi, Martin Truffer, Matthew J. Westoby, Wei Yang, and Francesca Pellicciotti
      The Cryosphere, 16, 4701–4725, https://doi.org/10.5194/tc-16-4701-2022, 2022
      Ice cliffs are believed to be important contributors to the melt of debris-covered glaciers, but this has rarely been quantified as the cliffs can disappear or rapidly expand within a few weeks. We used photogrammetry techniques to quantify the weekly evolution and melt of four cliffs. We found that their behaviour and melt during the monsoon is strongly controlled by supraglacial debris, streams and ponds, thus providing valuable insights on the melt and evolution of debris-covered glaciers.
      PubDate: Fri, 11 Nov 2022 22:55:56 +010
      DOI: 10.5194/tc-16-4701-2022 2022

       
  • Simulating the Laurentide ice sheet of the Last Glacial Maximum

    • Abstract: Simulating the Laurentide ice sheet of the Last Glacial Maximum
      Daniel Moreno, Jorge Alvarez-Solas, Javier Blasco, Marisa Montoya, and Alexander Robinson
      The Cryosphere Discuss., https//doi.org/10.5194/tc-2022-215,2022
      Preprint under review for TC (discussion: open, 0 comments)
      We have reconstructed the Laurentide Ice Sheet, placed in North America during the Last Glacial Maximum (21,000 years ago). The absence of direct measurements raises a number of uncertainties. Here we study the impact of different physical laws that describe the friction as the ice slides over its base. We found that the Laurentide Ice Sheet is closest to prior reconstructions when the basal friction takes into account whether the base is frozen or thawed during its motion.
      PubDate: Wed, 09 Nov 2022 22:55:56 +010
      DOI: 10.5194/tc-2022-2152022

       
  • Evaluating the Utility of Active Microwave Observations as a Snow Mission
           Concept Using Observing System Simulation Experiments

    • Abstract: Evaluating the Utility of Active Microwave Observations as a Snow Mission Concept Using Observing System Simulation Experiments
      Eunsang Cho, Carrie M. Vuyovich, Sujay V. Kumar, Melissa L. Wrzesien, and Rhae Sung Kim
      The Cryosphere Discuss., https//doi.org/10.5194/tc-2022-220,2022
      Preprint under review for TC (discussion: open, 0 comments)
      As a future snow mission concept, active microwave sensors have the potential to measure snow water equivalent (SWE) in deep snowpack and forested environments. We used a modeling and data assimilation approach (so-called “Observing System Simulation Experiment”) to quantify the usefulness of active microwave-based SWE retrievals over western Colorado. We found that active microwave sensors with a mature retrieval algorithm can improve SWE simulations by about 20 % in the mountainous domain.
      PubDate: Wed, 09 Nov 2022 22:55:56 +010
      DOI: 10.5194/tc-2022-2202022

       
  • Cosmogenic-nuclide data from Antarctic nunataks can constrain past ice
           sheet sensitivity to marine ice margin instabilities

    • Abstract: Cosmogenic-nuclide data from Antarctic nunataks can constrain past ice sheet sensitivity to marine ice margin instabilities
      Anna Ruth Weston Halberstadt, Greg Balco, Hannah Buchband, and Perry Spector
      The Cryosphere Discuss., https//doi.org/10.5194/tc-2022-213,2022
      Preprint under review for TC (discussion: open, 0 comments)
      This paper explores the use of multi-million-year exposure ages from Antarctic bedrock outcrops to benchmark ice sheet model predictions and thereby infer ice sheet sensitivity to warm climates. We describe a new approach for model/data comparison, highlight an example where observational data are used to distinguish end member models, and provide guidance for targeted sampling around Antarctica that can improve understanding of ice sheet response to climate warming in the past and future.
      PubDate: Wed, 09 Nov 2022 22:55:56 +010
      DOI: 10.5194/tc-2022-2132022

       
  • Consistent histories of anthropogenic Western European air pollution
           preserved in different Alpine ice cores

    • Abstract: Consistent histories of anthropogenic Western European air pollution preserved in different Alpine ice cores
      Anja Eichler, Michel Legrand, Theo M. Jenk, Susanne Preunkert, Camilla Andersson, Sabine Eckhardt, Magnuz Engardt, Andreas Plach, and Margit Schwikowski
      The Cryosphere Discuss., https//doi.org/10.5194/tc-2022-208,2022
      Preprint under review for TC (discussion: open, 0 comments)
      We investigate, how a 250-years history of the emission of air pollutants (major inorganic aerosol constituents, black carbon, and trace species) is preserved in different ice cores from various sites in the European Alps. Our results demonstrate that the individual ice-core records provide a spatial representative signal of anthropogenic pollution from Western European countries and are essential to constrain model data of air pollutants in this region.
      PubDate: Mon, 07 Nov 2022 22:55:56 +010
      DOI: 10.5194/tc-2022-2082022

       
  • A climatology of thermodynamic vs. dynamic Arctic wintertime sea ice
           thickness effects during the CryoSat-2 era

    • Abstract: A climatology of thermodynamic vs. dynamic Arctic wintertime sea ice thickness effects during the CryoSat-2 era
      James Anheuser, Yinghui Liu, and Jeffrey R. Key
      The Cryosphere Discuss., https//doi.org/10.5194/tc-2022-218,2022
      Preprint under review for TC (discussion: open, 0 comments)
      Sea ice parcels may experience thickness changes primarily through two processes: due to freezing or melting or due to motion relative to other parcels. These processes are independent and will be affected differently in a changing climate. In order to better understand these processes and compare against models, observational estimates of these process independent from one another are necessary. We present the first large spatial and temporal scale observational estimates of these processes.
      PubDate: Mon, 07 Nov 2022 22:55:56 +010
      DOI: 10.5194/tc-2022-2182022

       
  • New insights into the decadal variability in glacier volume of a tropical
           ice cap, Antisana (0°29′ S, 78°09′ W), explained by the
           morpho-topographic and climatic context

    • Abstract: New insights into the decadal variability in glacier volume of a tropical ice cap, Antisana (0°29′ S, 78°09′ W), explained by the morpho-topographic and climatic context
      Rubén Basantes-Serrano, Antoine Rabatel, Bernard Francou, Christian Vincent, Alvaro Soruco, Thomas Condom, and Jean Carlo Ruíz
      The Cryosphere, 16, 4659–4677, https://doi.org/10.5194/tc-16-4659-2022, 2022
      We assessed the volume variation of 17 glaciers on the Antisana ice cap, near the Equator. We used aerial and satellite images for the period 1956–2016. We highlight very negative changes in 1956–1964 and 1979–1997 and slightly negative or even positive conditions in 1965–1978 and 1997–2016, the latter despite the recent increase in temperatures. Glaciers react according to regional climate variability, while local humidity and topography influence the specific behaviour of each glacier.
      PubDate: Fri, 04 Nov 2022 22:00:52 +010
      DOI: 10.5194/tc-16-4659-2022 2022

       
  • Improving interpretation of sea-level projections through a
           machine-learning-based local explanation approach

    • Abstract: Improving interpretation of sea-level projections through a machine-learning-based local explanation approach
      Jeremy Rohmer, Remi Thieblemont, Goneri Le Cozannet, Heiko Goelzer, and Gael Durand
      The Cryosphere, 16, 4637–4657, https://doi.org/10.5194/tc-16-4637-2022, 2022
      To improve the interpretability of process-based projections of the sea-level contribution from land ice components, we apply the machine-learning-based SHapley Additive exPlanations approach to a subset of a multi-model ensemble study for the Greenland ice sheet. This allows us to quantify the influence of particular modelling decisions (related to numerical implementation, initial conditions, or parametrisation of ice-sheet processes) directly in terms of sea-level change contribution.
      PubDate: Fri, 04 Nov 2022 22:00:52 +010
      DOI: 10.5194/tc-16-4637-2022 2022

       
  • Sea ice breakup and freeze-up indicators for users of the Arctic coastal
           environment

    • Abstract: Sea ice breakup and freeze-up indicators for users of the Arctic coastal environment
      John E. Walsh, Hajo Eicken, Kyle Redilla, and Mark Johnson
      The Cryosphere, 16, 4617–4635, https://doi.org/10.5194/tc-16-4617-2022, 2022
      Indicators for the start and end of annual breakup and freeze-up of sea ice at various coastal locations around the Arctic are developed. Relative to broader offshore areas, some of the coastal indicators show an earlier freeze-up and later breakup, especially at locations where landfast ice is prominent. However, the trends towards earlier breakup and later freeze-up are unmistakable over the post-1979 period in synthesized metrics of the coastal breakup/freeze-up indicators.
      PubDate: Thu, 03 Nov 2022 22:00:52 +010
      DOI: 10.5194/tc-16-4617-2022 2022

       
  • A random forest model to assess snow instability from simulated snow
           stratigraphy

    • Abstract: A random forest model to assess snow instability from simulated snow stratigraphy
      Stephanie Mayer, Alec van Herwijnen, Frank Techel, and Jürg Schweizer
      The Cryosphere, 16, 4593–4615, https://doi.org/10.5194/tc-16-4593-2022, 2022
      Information on snow instability is crucial for avalanche forecasting. We introduce a novel machine-learning-based method to assess snow instability from snow stratigraphy simulated with the snow cover model SNOWPACK. To develop the model, we compared observed and simulated snow profiles. Our model provides a probability of instability for every layer of a simulated snow profile, which allows detection of the weakest layer and assessment of its degree of instability with one single index.
      PubDate: Thu, 03 Nov 2022 22:00:52 +010
      DOI: 10.5194/tc-16-4593-2022 2022

       
  • Induced Electromagnetic prospecting for the characterization of the
           European southernmost glacier: the Calderone Glacier, Apennines, Italy

    • Abstract: Induced Electromagnetic prospecting for the characterization of the European southernmost glacier: the Calderone Glacier, Apennines, Italy
      Mirko Pavoni, Jacopo Boaga, Alberto Carrera, Stefano Urbini, Fabrizio de Blasi, and Jacopo Gabrieli
      The Cryosphere Discuss., https//doi.org/10.5194/tc-2022-190,2022
      Preprint under review for TC (discussion: open, 0 comments)
      The Ice Memory project aims to extract, analyze, and store ice cores from worldwide retreating glaciers. One of the selected sites is the last remaining ice body in the Apennines, the Calderone Glacier. To assess the most suitable drilling position, geophysical surveys were performed. Reliable ground penetrating radar measurements have been positively combined with a geophysical technique rarely applied in glacier environments, the Frequency Domain Electro-Magnetic prospection.
      PubDate: Tue, 01 Nov 2022 22:00:52 +010
      DOI: 10.5194/tc-2022-1902022

       
 
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