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Geosciences, Volume 9, Issue 12

December 2019 - 36 articles

Cover Story: Sea ice has undergone dramatic change in recent decades. However, our understanding of sea ice variability is limited to the satellite era (post-1970), making it hard to place recent trends in context or benchmark future changes. Paleoclimate archives, from marine sediments and ice cores, provide a means of reconstructing sea ice conditions over a range of timescales. Here, we review the marine and atmospheric sea ice proxies used to reconstruct Antarctic sea ice over the past 2000 years and explore how the marine and ice core records could be combined to increase our spatial and temporal coverage. View this paper.
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Articles (36)

  • Feature Paper
  • Article
  • Open Access
6 Citations
4,314 Views
23 Pages

Improvement of an Operational Forecasting System for Extreme Tidal Events in Santos Estuary (Brazil)

  • Joana Mendes,
  • Paulo Leitão,
  • José Chambel Leitão,
  • Sofia Bartolomeu,
  • João Rodrigues and
  • João Miguel Dias

10 December 2019

Forecasting estuarine circulation is a hot topic, especially in densely populated regions, like Santos (Brazil). This paper aims to improve a water-level forecasting system for the Santos estuary, particularly the physical forcing determining the res...

  • Article
  • Open Access
5 Citations
9,329 Views
18 Pages

The 1930 discovery of Carboniferous lycopsid fossils in south central Colorado resulted in the naming of a new species of scale tree, Lepidodendron johnsonii (=Lepidophloios johnsonii (Arnold) DiMichele). Cellular structures of L. johnsonii axes and...

  • Article
  • Open Access
20 Citations
7,275 Views
34 Pages

Fracture seismic is the method for recording and analyzing passive seismic data for mapping the fractures in the subsurface. Fracture seismic is able to map the fractures because of two types of mechanical actions in the fractures. First, in cohesive...

  • Article
  • Open Access
14 Citations
4,046 Views
21 Pages

This article addresses the issue of flood management using four flood storage areas in the middle section of Huai River in China which protect the important downstream city of Bengbu. The same areas are also used by the local population as residentia...

  • Review
  • Open Access
30 Citations
7,309 Views
25 Pages

Sub-seafloor microbial environments exhibit large carbon-isotope fractionation effects as a result of microbial enzymatic reactions. Isotopically light, dissolved inorganic carbon (DIC) derived from organic carbon is commonly released into the inters...

  • Article
  • Open Access
6 Citations
4,847 Views
20 Pages

Recent geophysical and petrological observations indicate the presence of water and hydrous melts in and around the mantle transition zone (MTZ), for example, prominent low-velocity zones detected by seismological methods. Experimental data and compu...

  • Review
  • Open Access
58 Citations
12,857 Views
33 Pages

Antarctic Sea Ice Proxies from Marine and Ice Core Archives Suitable for Reconstructing Sea Ice over the Past 2000 Years

  • Elizabeth R. Thomas,
  • Claire S. Allen,
  • Johan Etourneau,
  • Amy C. F. King,
  • Mirko Severi,
  • V. Holly L. Winton,
  • Juliane Mueller,
  • Xavier Crosta and
  • Victoria L. Peck

Dramatic changes in sea ice have been observed in both poles in recent decades. However, the observational period for sea ice is short, and the climate models tasked with predicting future change in sea ice struggle to capture the current Antarctic t...

  • Review
  • Open Access
52 Citations
9,155 Views
23 Pages

Machine learning methods for data processing are gaining momentum in many geoscience industries. This includes the mining industry, where machine learning is primarily being applied to autonomously driven vehicles such as haul trucks, and ore body an...

  • Editorial
  • Open Access
1 Citations
2,397 Views
2 Pages

28 November 2019

Disaster related research has its own interdisciplinary perspectives connected to the disaster cycle (response, recovery, prevention, and preparedness). This special issue focuses on interdisciplinary geosciences perspectives of tsunami that cover th...

  • Article
  • Open Access
1 Citations
3,489 Views
23 Pages

28 November 2019

The inner continental shelf is regarded as a repository of hyperpycnal flow (HF) deposits the analysis of which may contribute to hydrogeological risk assessment in coastal areas. In line with the source to sink paradigm, we examined the dynamics of...

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Geosciences - ISSN 2076-3263