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12 results for “bathymetric data”
Bathymetric data from the Tiran Straits
<p>A high-resolution swath multibeam survey of the Tiran Straits (within Saudi waters) was conducted by OceanX aboard the R/V OceanXplorer. Data were acquired using hull-mounted Kongsberg EM712 and EM304 systems operating in the 70-100 kHz range calibrated with CTD (conductivity, temperature, depth) and expendable bathythermograph (XBT) profiles. The beam density of these systems was configured to deliver a minimum across-track resolution of 10 m. Survey speed was kept at 5-6 kn (~10 km/h) to limit the spacing between successive survey points. The bathymetric data were automatically screened for obvious outliers and, additionally, we manually identified and removed remaining spurious data points. From this dataset, we built a Digital Elevation Model (DEM) of the bathymetry by averaging raw data values to a 20 m horizontal grid.</p>
Bathymetric data for Lake Sunapee, NH, USA
This dataset includes four raster layers of bathymetry data for the basin of Lake Sunapee, NH, USA. They are in ESRI grid format, UTM NAD83 (zone 19) with 1.3m grid cells. They were created in 2008 by Digital Bathymetrics (www.bathymetrics.com) for June Fichter of the Lake Sunapee Protective Association (LSPA) and Kathleen Weathers of the Cary Institute of Ecosystem Studies. All depths were adjusted to the mean summer pool elevation of Lake Sunapee which is 1093 feet above sea level.
Bathymetric data for Mulargia reservoir (Sardinia, Italy)
<p>This dataset includes bathymetric data for Mulargia reservoir (Sardinia), which were extracted from a raster dataset of 30 m x 30 m resolution that contained three fields: latitude (UTM 32N), longitude (UTM 32N) and elevation (meters). Three different database sources were combined and interpolated for the production of the bathymetric raster: the Shuttle Radar Topography Mission (SRTM) digital elevation model, a military map (19/9/1882, No.1012), and data on water level variations from 1985 to 2016.</p>
Dataset for "Quantifying the physical impact of bottom trawling based on high-resolution bathymetric data"
<p>Bathymetric point cloud data and ship log data used for the article "Quantifying the physical impact of bottom trawling based on high-resolution bathymetric data" by Mischa Schönke, David Clemens and Peter Feldens (<a href="https://doi.org/10.3390/rs14122782">https://doi.org/10.3390/rs14122782</a>)</p>
Bathymetric data from the Northern Red Sea
<p><strong>If you use these data, please refer to Ribot M., et al. (2024), </strong><strong>Vertical deformation along a strike-slip plate boundary: the uplifted marine terraces of the Gulf of Aqaba and Tiran Island, at the southern end of the Dead Sea Fault, Tectonics, <em>in press.</em></strong></p> <p>A high-resolution bathymetric survey of the northern Red Sea, near the Strait of Tiran and Tiran Island was conducted on board the R/V Thuwal from September 3<sup>rd</sup> to September 10<sup>th</sup>, 2019. We used a Kongsberg EM710-MK2 multibeam echo sounder (operating in the 70-100 kHz range) calibrated with CTD (Conductivity, Temperature, Depth) profiles. In order to maximize the range capability and to reduce interference from multiple returns we used a transmit fan which sequentially divides the signal into three sectors with distinct transmit frequencies and waveforms. We limited the system to a swath of 2000 m (i.e. 1000 m swath on each side of the beamer) in order to ensure appropriate beam density as to grid the data in a 10 m wide pixel raster across the track. Similarly, the survey speed was kept at 5-6 kn (~10 km/h) to limit the spacing between successive survey points and to ensure that the maximum pixel width is 10 m along the track as well. Survey lines were acquired every ~1000 m in deep water and 800 m near the shore, to ensure a double coverage of each point in opposite directions.</p> <p>The results were imported into the commercial SiS multibeam software and used to correct the incoming multibeam data. Then, the bathymetric data were automatically screened for obvious outliers and, additionally, we manually identified and removed remaining spurious data points.</p> <p>From this dataset, we built a Digital Elevation Model (DEM) of the bathymetry by averaging raw data values to a 10 m horizontal grid.</p> <p>The vertical resolution of the DEM is controlled by the pulse duration of the acoustic signal. The vertical resolution (R) can be calculated following R = v⋅d/2 with v the wave propagation velocity in water and d the duration of the signal. During the data acquisition, we tuned the pulse duration at 2 ms, and calibrated the wave propagation velocity with the CTD casts with values ranging between 1535 and 1558 m/s. Thus, it implies that the vertical resolution is 1.5 m.</p> <p><strong>If you use these data, please refer to Ribot M., et al. (2024), </strong><strong>Vertical deformation along a strike-slip plate boundary: the uplifted marine terraces of the Gulf of Aqaba and Tiran Island, at the southern end of the Dead Sea Fault, Tectonics, <em>in press.</em></strong></p>
Bathymetric data for upper and lower Acorn Woman Lakes
<p>This Excel file contains the bathymetric data collected for upper Acorn Woman Lake (USL) and lower Acorn Woman Lake (SQB) for the publications:</p> <p>A 2700-year record of Cascadia megathrust and crustal/slab earthquakes from Acorn Woman Lakes, Oregon, and</p> <p>Sedimentary record of historic seismicity in a small, southern Oregon lake</p> <p>The core locations are also included for lower Acorn Woman lake.</p>
Bathymetric,Magnetic data and code for Coupled detachment faulting and hydrothermal circulation at 49.7°E Southwest Indian Ridge revealed by seafloor magnetism
<p>The dataset contains the Dragon Horn area bathymetric data, near-bottom magnetic survey data, and the SimPEG (V0.15.2) source code used in the forward and inversion of magnetic anomalies.</p>
Supplementary Data: An evaluation of the General Bathymetric Chart of the Ocean (GEBCO) in shoreline-crossing geomorphometric investigations of volcanic islands
<p>Supplementary data for the titular publication. Consists of .csv and .gpkg files with the results of geomorphometric parameter extraction of volcanic islands from shoreline-crossing DEMs of various resolution, the calculation of the deviation of these parameters depending on the source DEM, as well as basic statistical distribution of these parameters. See publication for more detailed information.</p>
Data from: Biogeographic and bathymetric determinants of brachiopod extinction and survival during the Late Ordovician Mass Extinction
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Data from: The Pillars of Hercules as a bathymetric barrier to gene-flow promoting isolation in a global deep-sea shark (Centroscymnus coelolepis)
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Data from: Metabolic costs imposed by hydrostatic pressure constrain bathymetric range in the lithodid crab Lithodes maja
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Millstätter See Bathymetric data
<p>This dataset comprises the bathymetric data from Millstättersee, a lake in the Eastern European Alps (Austria). Cel size is 1 m. Detailed description of the methodology is provided in the added pdf-file. The data will be made available upon reasonable, non-commercial request.</p>
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