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  • Abstract: Not Available Category: geoscientificInformation Source: Not Available Supplemental Information: Not Availble Coverage: EVENT LABEL: * LATITUDE: -77.710530 * LONGITUDE: -35.258690 * DATE/TIME: 2018-02-22T01:53:00 * ELEVATION: -461.0 m * Penetration: 0.2 * Recovery: 0 * LOCATION: Weddell Sea * CAMPAIGN: PS111 * BASIS: Polarstern * METHOD/DEVICE: Gravity corer
    Data Types:
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  • Abstract: Not Available Category: geoscientificInformation Source: Not Available Supplemental Information: Not Availble Coverage: EVENT LABEL: * LATITUDE: -77.111926 * LONGITUDE: -33.936862 * DATE/TIME: 2018-02-22T07:25:00 * ELEVATION: -404.0 m * Penetration: 0 * Recovery: 0 * LOCATION: Weddell Sea * CAMPAIGN: PS111 * BASIS: Polarstern * METHOD/DEVICE: Gravity corer
    Data Types:
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  • Abstract: Not Available Category: geoscientificInformation Source: Not Available Supplemental Information: some very stiff till at core catcher only Coverage: EVENT LABEL: * LATITUDE: -63.587122 * LONGITUDE: -48.744322 * DATE/TIME: 2018-03-06T18:42:00 * ELEVATION: -3342.0 m * LOCATION: Weddell Sea * CAMPAIGN: PS111 * BASIS: Polarstern * METHOD/DEVICE: CTD/Rosette
    Data Types:
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  • Abstract: Not Available Category: geoscientificInformation Source: Not Available Supplemental Information: Not Availble Coverage: EVENT LABEL: * LATITUDE: -54.530800 * LONGITUDE: -36.884100 * LOCATION: Antarctica * METHOD/DEVICE: Multiple investigations
    Data Types:
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  • Abstract: A gridded bathymetry of the sea floor under Ekström Ice Shelf, Antarctica. The seismic data used to map the bathymetry were collected between 2010 and 2018, using two different seismic vibroseis sources. The same snow streamer was used for all data acquisition - a 1500 m long, 60 channel snow streamer, with 25 m group spacing. Each group contains eight gimballed P-wave SM-4, 14 Hz geo-phones. For each seismic profile, the reflection time of the sea floor horizon was identified. The data across all profiles was gridded and depth converted, using an ice velocity of 3601 m/s a sea-water velocity of 1451 m/s. Category: geoscientificInformation Source: Not Available Supplemental Information: Not Availble Coverage: EVENT LABEL: * LATITUDE: -70.677780 * LONGITUDE: -8.271670 * LOCATION: Ekström Ice Shelf * METHOD/DEVICE: Multiple investigations
    Data Types:
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  • Abstract: This dataset is a bathymetric raster (GeoTIFF, UTM 16S) with a 2 x 2 m resolution merged from three different AUV MBES surveys (Abyss192 - SO242/1_047-1; Abyss193 - SO242/1_060-1; Abyss194 - SO242/1_069-1) conducted during cruise SO242_1 with the German RV SONNE. It includes the entire DEA in the center and extends towards a mountain area NE of the DEA. The provided raster is corrected for lateral and vertical offsets based on the ship-acquired MBES (Kongsberg EM122 mounted in RV SONNE) dataset (https://doi.pangaea.de/10.1594/PANGAEA.905579) as reference layer. Category: geoscientificInformation Source: Not Available Supplemental Information: The data were acquired by AUV ABYSS (Type REMUS 6000) equipped with a RESON Seabat 7125 MBES (200 kHz, 1° by 2° beam angle). The MBES survey altitude was 80 m. The raw data (.s7k) were processed with MB-system (Caress, D.W., and D.N. Chayes, Open source software distributed from the MBARI and L-DEO web sites) using the “mbedit” command for a rough correction of erroneous depth measurements and “mbnavadjust” for the relative and absolute navigation correction. The data were then transferred to the QPS processing software Qloud for further data cleaning and finally exported as point cloud. The bathymetric data from each survey were gridded (2x2 m) and merged into one bathymetric raster using ArcGIS. The merged AUV bathymetric data with a spatial resolution of 2 m was resampled to match the 38 m resolution of the ship-based bathymetric raster enabling a direct grid comparison and correction of vertical and lateral offsets of the AUV bathymetric grid relative to the ships data layer. Using 5 m contour lines to visualize morphological features in the area, the 38 m AUV bathymetry was shifted/stretched manually onto the EM122 data using the ArcGIS 10.2 Georeferencing Toolbox for geographic corrections (contour lines were derived with the Spatial Analyst Toolbox and grids were subtracted to see z-offsets using the Raster Calculator function). The derived vertical offset of -9 m between the ship- and the AUV-acquired bathymetric data was added to the depth values of the AUV MBES data. Coverage: EVENT LABEL: (SO242/1_47-1_AUV 6) * LATITUDE START: -7.072633 * LONGITUDE START: -88.460967 * LATITUDE END: -7.097500 * LONGITUDE END: -88.505700 * DATE/TIME START: 2015-08-05T07:48:00 * DATE/TIME END: 2015-08-06T03:15:00 * ELEVATION START: -4163.6 m * ELEVATION END: -4140.7 m * CAMPAIGN: SO242/1 * BASIS: Sonne_2 * METHOD/DEVICE: Autonomous underwater vehicle
    Data Types:
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  • Abstract: The AUV-acquired Side Scan Sonar (SSS) data during RV SONNE cruise SO242_1 of the entire DEA is provided as GeoTIFF here (0.5 x 0.5 m resolution, UTM 16S). Category: geoscientificInformation Source: Not Available Supplemental Information: AUV ABYSS (REMUS 6000 type) is equipped with an Edgetech 2200 MP SSS system. The merged dataset includes the following surveys: Abyss189 - SO242/1_25-1; Abyss190 - SO242/1_33-1. The survey altitude during the SSS missions were set to 20 m, the data were processed with CleanSweep (from Ocean Imaging Consultants). The merged data set was geo-referenced based on the AUV MBES data (https://doi.pangaea.de/10.1594/PANGAEA.905580) as a reference layer. The plough marks resolved in both data sets and three dominant morphological structures with distinct substrate characteristics were applied as anchor points for the alignment (Gausepohl et al, in review). Coverage: EVENT LABEL: (SO242/1_18-1_AUV 2) * LATITUDE START: -7.073217 * LONGITUDE START: -88.460067 * LATITUDE END: -7.073167 * LONGITUDE END: -88.460017 * DATE/TIME START: 2015-07-31T18:00:00 * DATE/TIME END: 2015-07-31T21:08:00 * ELEVATION START: -4135.4 m * ELEVATION END: -4158.3 m * CAMPAIGN: SO242/1 * BASIS: Sonne_2 * METHOD/DEVICE: Autonomous underwater vehicle
    Data Types:
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  • Abstract: The bathymetric raster (GeoTIFF; UTM 16S) from the DEA and the surrounding reference areas (38 x 38 m resolution) acquired by the Kongsberg EM122 MBES system onboard the German RV SONNE during cruise SO242/1 is available here. Category: geoscientificInformation Source: Not Available Supplemental Information: Settings of the EM122 for data acquisition: 12 kHz, 1° by 0.5° beam angle, 432 beams, equidistance, swath angle 130°, survey speed about 8 knots. The data were processed with QPS Fledermaus already on board the vessel. The raw files are available, see references. Coverage: EVENT LABEL: (SO242/1_17-1) * LATITUDE START: -6.984767 * LONGITUDE START: -88.332533 * LATITUDE END: -7.118867 * LONGITUDE END: -88.335283 * DATE/TIME START: 2015-07-31T08:29:00 * DATE/TIME END: 2015-07-31T16:31:00 * ELEVATION START: -4275.6 m * ELEVATION END: -4116.0 m * CAMPAIGN: SO242/1 * BASIS: Sonne_2 * METHOD/DEVICE: Deep-Sea Multibeam Echosounder
    Data Types:
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  • Abstract: The vegetation map distinguishes between five tundra vegetation types, trees, and open water at the forest-tundra transition north of Inuvik, Northwest Territories, Canada. The area is underlain by continuous permafrost. Vegetation types were distinguished based on vegetation height derived from airborne laserscanning, airborne orthophotos and observations from the field site. A detailed description of the data sources and processing steps is included. Category: geoscientificInformation Source: Not Available Supplemental Information: Not Availble Coverage: EVENT LABEL: * LATITUDE: 68.740280 * LONGITUDE: -133.493330 * LOCATION: Northwest Territories, Canada * METHOD/DEVICE: Multiple investigations
    Data Types:
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  • Abstract: PET (Physical Equivalent Temperature) heat map valid for 1 July 2015 on 1 meter resolution. This is a hot summer day with a PET exceedance probability of ~1: 5.5 years. Category: geoscientificInformation Source: Not Available Supplemental Information: Not Availble Coverage: EVENT LABEL: * LATITUDE: 51.970000 * LONGITUDE: 5.670000 * METHOD|DEVICE: Multiple investigations
    Data Types:
    • Image
    • Dataset