Arctic Ocean - multichannel seismic reflection profiles recorded during RV POLARSTERN cruise PS87 ...

A set of multichannel seismic reflection lines across the southeastern Lomonosov Ridge and adjacent basins was collected in 2014 during RV Polarstern cruise ARK XXVIII/3 (PS87). The data provide constraints on the coupled evolution of ocean circulations, deposition regime and regional tectonic proce...

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Bibliographic Details
Main Authors: Weigelt, Estella, Jokat, Wilfried, Eisermann, Hannes
Format: Dataset
Language:English
Published: PANGAEA 2020
Subjects:
Arctic Ocean
Lomonosov Ridge
reflection seismics
SEGY-format
File name
File format
File size
Uniform resource locator/link to file
Seismic reflection profile
PS87
Polarstern
Marine Geophysics @ AWI AWI_GeoPhy
Arctic
Online Access:https://dx.doi.org/10.1594/pangaea.919774
https://doi.pangaea.de/10.1594/PANGAEA.919774
Description
Summary:A set of multichannel seismic reflection lines across the southeastern Lomonosov Ridge and adjacent basins was collected in 2014 during RV Polarstern cruise ARK XXVIII/3 (PS87). The data provide constraints on the coupled evolution of ocean circulations, deposition regime and regional tectonic processes.The survey set-up for most lines comprised a streamer of 3000 m length (240 channels), and a 24-liter G-gun array. Shots were fired every 15 s resulting into a shot point spacing of 35-40 m. Data were recorded for 12 s at a sample rate of 1 ms. The seismic data processing comprised sorting in a CDP interval of 25 m (= max. fold 145), and velocity analysis (every 100 CDP = 2.5 km). Interval velocities for the seismic units are adopted from the stacking velocities. After the removal of noisy traces and spherical divergence correction the traces were stacked and migrated with a finite-difference time-migration. For a successful suppression of sea floor multiple an f-k filter was applied. In general, the data ...

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