Results 21 to 30 of about 24,905 (303)

Aggregate Channel Features and Fast Regions CNN Approach for Classification of Ship and Iceberg

open access: yesApplied Sciences, 2023
Detection and classification of icebergs and ships in synthetic aperture radar (SAR) images play a vital role in marine surveillance systems even though available adaptive threshold methods give satisfying results on detection and classification for ...
Sivapriya Sethu Ramasubiramanian   +2 more
doaj   +1 more source

The iceberg drift study near Severnaya Zemlya in the spring of 2018 by remote sensing data

open access: yesЛëд и снег, 2019
The movement of icebergs in the Laptev Sea off the coast of the Severnaya Zemlya archipelago in spring of 2018 was analyzed using satellite observations in visible spectral band. As is shown in the article the data of radiometers installed on the Landsat-
I. A. Bychkova, V. G. Smirnov
doaj   +1 more source

Specific Features of Iceberg Distribution According to Shipborne Observations in the Kara Sea in 2004-2019

open access: yesРоссийская Арктика, 2020
The analysis of ship observations on the location and characteristics of icebergs according to shipborne observations in the Kara Sea from 2004 to 2019 is presented.
Pavlova E.A.   +3 more
doaj   +1 more source

Tracking icebergs with time-lapse photography and sparse optical flow, LeConte Bay, Alaska, 2016–2017 [PDF]

open access: yes, 2019
We present a workflow to track icebergs in proglacial fjords using oblique time-lapse photos and the Lucas-Kanade optical flow algorithm. We employ the workflow at LeConte Bay, Alaska, where we ran five time-lapse cameras between April 2016 and ...
Amundson, Jason M.   +9 more
core   +2 more sources

Ice sheets as a significant source of highly reactive nanoparticulate iron to the oceans [PDF]

open access: yes, 2014
The Greenland and Antarctic Ice Sheets cover ~\n10% of global land surface, but are rarely considered as active components of the global iron cycle. The ocean waters around both ice sheets harbour highly productive coastal ecosystems, many of which are ...
Benning, Liane G.   +9 more
core   +2 more sources

Use of satellite data for detecting icebergs and evaluating the iceberg threats

open access: yesЛëд и снег, 2018
Te methods of satellite monitoring of dangerous ice formations, namely icebergs in the Arctic seas, representing a threat to the safety of navigation and economic activity on the Arctic shelf are considered.
I. A. Bychkova, V. G. Smirnov
doaj   +1 more source

Tracking B-31 iceberg with two aircraft-deployed sensors [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2015
Icebergs are a natural hazard to maritime operations in polar regions. Iceberg populations are increasing, as is the demand for access to both Arctic and Antarctic seas.
D. H. Jones, G. H. Gudmundsson
doaj   +1 more source

Iceberg drift and melting rates in the northwestern Weddell Sea, Antarctica: Novel automated regional estimates through machine learning [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2022
Global warming and its consequences on polar regions have been thoroughly discussed in recent times. One of those consequences is the freshwater flux and the associated cooling and freshening that result from iceberg melting. Despite the potential impact,
MAURO M. BARBAT, MAURICIO M. MATA
doaj   +1 more source

Automatic Detection of Small Icebergs in Fast Ice Using Satellite Wide-Swath SAR Images

open access: yesRemote Sensing, 2019
Automatic detection of icebergs in satellite images is regarded a useful tool to provide information necessary for safety in Arctic shipping or operations over large ocean areas in near-real time.
Ingri Halland Soldal   +3 more
doaj   +1 more source

How do icebergs affect the Greenland ice sheet under pre-industrial conditions? – a model study with a fully coupled ice-sheet–climate model [PDF]

open access: yesThe Cryosphere, 2015
Icebergs have a potential impact on climate since they release freshwater over a widespread area and cool the ocean due to the take-up of latent heat.
M. Bügelmayer, D. M. Roche, H. Renssen
doaj   +1 more source

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