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Geosciences, Volume 9, Issue 8

August 2019 - 37 articles

Cover Story: Unmanned aerial vehicles (UAVs) are a rapidly evolving tool in geosciences and are increasingly deployed to study the dynamic processes of the earth’s surface. To assess the potential of low-cost UAVs for the monitoring of alpine glaciers, we conducted multiple aerial surveys on the Kanderfirn in the Swiss Alps and used novel open-source photogrammetry software for the generation of high-resolution orthophotos and digital surface models. The produced orthophotos and surface models document the rapid glacier surface changes over the melt season 2018 and highlight that self-developed fixed-wing UAVs in tandem with open-source software are an affordable alternative to commercial remote-sensing platforms and proprietary software. View this paper
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Articles (37)

  • Article
  • Open Access
11 Citations
5,762 Views
23 Pages

New Estimation of the Post Little Ice Age Relative Sea Level Rise

  • Vincenzo Pascucci,
  • Gabriela Frulio and
  • Stefano Andreucci

The study area is located in NW Sardinia Island (Italy), Mediterranean Sea. Sardinia is considered stable since the late Pliocene with a negligible subsidence of about 0.01 mm/y. It is therefore normally used to reconstruct the Pleistocene and Holoce...

  • Article
  • Open Access
12 Citations
9,588 Views
21 Pages

Estimating Tsunami Economic Losses of Okinawa Island with Multi-Regional-Input-Output Modeling

  • Kwanchai Pakoksung,
  • Anawat Suppasri,
  • Kazuyo Matsubae and
  • Fumihiko Imamura

Understanding the impacts of tsunamis, especially in terms of damage and losses, is important for disaster mitigation and management. The aim of this study is to present our estimations of the potential losses from tsunami damage on Okinawa Island. W...

  • Article
  • Open Access
7 Citations
4,009 Views
17 Pages

Comparison of Statistical Analysis Models for Susceptibility Assessment of Earthquake-Triggered Landslides: A Case Study from 2015 Earthquake in Lefkada Island

  • Christos Polykretis,
  • Kleomenis Kalogeropoulos,
  • Panagiotis Andreopoulos,
  • Antigoni Faka,
  • Andreas Tsatsaris and
  • Christos Chalkias

The main purpose of this study is to comparatively assess the susceptibility of earthquake-triggered landslides in the island of Lefkada (Ionian Islands, Greece) using two different statistical analysis models, a bivariate model represented by freque...

  • Article
  • Open Access
5 Citations
4,931 Views
17 Pages

Water transformation around Antarctica is recognized to significantly impact the climate. It is where the linkage between the upper and lower limbs of the Meridional Overturning Circulation (MOC) takes place by means of dense water formation, which m...

  • Article
  • Open Access
19 Citations
4,632 Views
15 Pages

Effective Formula for Impact Damping Ratio for Simulation of Earthquake-induced Structural Pounding

  • Seyed Mohammad Khatami,
  • Hosein Naderpour,
  • Rui Carneiro Barros,
  • Anna Jakubczyk-Gałczyńska and
  • Robert Jankowski

Structural pounding during earthquakes may cause substantial damage to colliding structures. The phenomenon is numerically studied using different models of collisions. The aim of the present paper is to propose an effective formula for the impact da...

  • Article
  • Open Access
22 Citations
5,842 Views
13 Pages

Evidence of Segmentation in the Iberia–Africa Plate Boundary: A Jurassic Heritage?

  • Manel Fernàndez,
  • Montserrat Torne,
  • Jaume Vergés,
  • Emilio Casciello and
  • Chiara Macchiavelli

The present structure of the Iberia–Africa plate boundary between the Gorringe Bank and the Algerian Basin is characterized by a highly segmented geometry and diffused seismicity. Filtered Bouguer gravity data show conspicuous highs coinciding...

  • Article
  • Open Access
9 Citations
4,516 Views
14 Pages

Suspended, organic matter, especially in the form of adhesive extracellular polymers (EPS), tends to form flocs, which may also incorporate suspended lithogenic particles in coastal environments. With an increased settling velocity, these ballasted f...

  • Article
  • Open Access
12 Citations
5,554 Views
22 Pages

133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction

  • Nieves López-González,
  • Belén Alonso,
  • Carmen Juan,
  • Gemma Ercilla,
  • Graziella Bozzano,
  • Isabel Cacho,
  • David Casas,
  • Desirée Palomino,
  • Juan-Tomás Vázquez and
  • Ferran Estrada
  • + 4 authors

The Djibouti Ville Drift is part of a contourite depositional system located on the southern side of the Djibouti Ville Seamount in the Alboran Sea (Western Mediterranean). The sedimentary record of a core located in the drift deposits has been chara...

  • Review
  • Open Access
27 Citations
7,035 Views
17 Pages

Arboreal Epiphytes in the Soil-Atmosphere Interface: How Often Are the Biggest “Buckets” in the Canopy Empty?

  • Hailey Hargis,
  • Sybil G. Gotsch,
  • Philipp Porada,
  • Georgianne W. Moore,
  • Briana Ferguson and
  • John T. Van Stan

Arboreal epiphytes (plants residing in forest canopies) are present across all major climate zones and play important roles in forest biogeochemistry. The substantial water storage capacity per unit area of the epiphyte “bucket” is a key...

  • Article
  • Open Access
13 Citations
6,501 Views
32 Pages

Late Holocene Glacial Fluctuations of Schiaparelli Glacier at Monte Sarmiento Massif, Tierra del Fuego (54°24′ S)

  • Wolfgang Jens-Henrik Meier,
  • Juan-Carlos Aravena,
  • Jussi Grießinger,
  • Philipp Hochreuther,
  • Pamela Soto-Rogel,
  • Haifeng Zhu,
  • Ricardo De Pol-Holz,
  • Christoph Schneider and
  • Matthias Holger Braun

The Magallanes–Tierra del Fuego region, Southern Patagonia (53–56° S) features a plethora of fjords and remote and isolated islands, and hosts several thousand glaciers. The number of investigated glaciers with respect to the multiple...

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Geosciences - ISSN 2076-3263