scholarly journals New gravity data in the Arctic Ocean: Comparison of airborne and ERS gravity

2001 ◽  
Vol 106 (B5) ◽  
pp. 8871-8886 ◽  
Author(s):  
Vicki A. Childers ◽  
David C. McAdoo ◽  
John M. Brozena ◽  
Seymour W. Laxon
Keyword(s):  
Arctic Ocean ◽  
Gravity Data ◽  
The Arctic ◽  
The Arctic Ocean

scholarly journals Comparison of Marine Gravity Measurements from Shipborne and Satellite Altimetry in the Arctic Ocean

2021 ◽  
Vol 14 (1) ◽  
pp. 41
Author(s):  
Zilong Ling ◽  
Lihong Zhao ◽  
Tao Zhang ◽  
Guojun Zhai ◽  
Fanlin Yang
Keyword(s):  
Sea Ice ◽  
Arctic Ocean ◽  
Wavelength Range ◽  
Satellite Altimetry ◽  
Gravity Data ◽  
The Arctic ◽  
Significant Information ◽  
Marine Gravity ◽  
The Arctic Ocean ◽  
Gravity Measurements

To understand the influence of sea ice on shipborne gravity measurements and the accuracy of the satellite-altimetry-derived gravity field in the Arctic Ocean, we compared shipborne gravity measurements with those obtained from satellite altimetric gravity measurements. The influence of sea ice on the shipborne gravity measurements was mainly concentrated in the 0–6 km wavelength range, and the standard deviation of the noise amplitudes was 2.62 mGal. Compared to ice-free regions, the accuracies in the region with floating ice were reduced by 13% for DTU21 and 6% for SV31. Due to the influence of sea ice, satellite altimetric gravity data lose significant information in the 9–12 km wavelength range. The coherence curve of the shipborne gravity with bathymetry was nearly the same as that of the satellite altimetric gravity. The satellite data contain nearly all of the significant information that is present in the shipborne data. The differences between the shipborne and satellite gravity data are small and can be used to study the crustal structure of the Arctic.

USGS Arctic Ocean Carbon Cruise 2012: Field Activity L-01-12-AR to collect carbon data in the Arctic Ocean, August-September 2012

Data Series ◽  
10.3133/ds862 ◽  
2014 ◽  
Author(s):  
Lisa L. Robbins ◽  
Jonathan Wynn ◽  
Paul O. Knorr ◽  
Bogdan Onac ◽  
John T. Lisle ◽  
...  
Keyword(s):  
Arctic Ocean ◽  
The Arctic ◽  
Field Activity ◽  
The Arctic Ocean ◽  
Ocean Carbon

A remarkable pogonophoran from a desalted shallow near the mouth of the Yenisey River in the Kara Sea, with the description of a new species of the genus Galathealinum (Annelida: Pogonophora: Frenulata)

2020 ◽  
Vol 29 (1) ◽  
pp. 138-154
Author(s):  
R.V. Smirnov ◽  
O.V. Zaitseva ◽  
A.A. Vedenin
Keyword(s):  
New Species ◽  
Arctic Ocean ◽  
Anterior Part ◽  
Morphological Characters ◽  
Kara Sea ◽  
The Arctic ◽  
External Layer ◽  
The Arctic Ocean ◽  
A New Species ◽  
Unusual Finding

A new species of Pogonophora obtained from one station at a depth of 25 m from near the Dikson Island in the Kara Sea is described. Galathealinum karaense sp. nov. is one of the largest pogonophorans, the first known representative of the rare genus Galathealinum Kirkegaard, 1956 in the Eurasian part of the Arctic Ocean and a highly unusual finding for the desalted shallow of the Yenisey Gulf. Several characters occurring in the new species are rare or unique among the congeners: under-developed, hardly discernible frills on the tube segments, extremely thin felted fibres in the external layer of the tube, and very faintly separated papillae in the anterior part of the trunk. Morphological characters useful in distinguishing species within the genus Galathealinum are defined and summarised in a table. Diagnosis of the genus Galathealinum is emended and supplemented by new characters. Additionally, three taxonomic keys are provided to the species of Galathealinum and to the known species of the Arctic pogonophorans using either animals or their empty tubes only, with the brief zoogeographical information on each Arctic species.

Positions of the non-Arctic States on the legal regime of the Arctic Ocean

2018 ◽  
pp. 124-135 ◽  
Author(s):  
A. Vylegzhanin ◽  
◽  
V. Salygin ◽  
I. Dudykina ◽  
E. Kienko ◽  
...  
Keyword(s):  
Arctic Ocean ◽  
The Arctic ◽  
Legal Regime ◽  
The Arctic Ocean
Sign in / Sign up

Export Citation Format

Share Document