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  • Abstract: Not Available Category: geoscientificInformation Source: Not Available Supplemental Information: Not Availble Coverage: EVENT LABEL: * LATITUDE: 35.974258 * LONGITUDE: -120.552107 * LOCATION: San Andreas Fault, California, USA * METHOD/DEVICE: Core drilling
    Data Types:
    • Tabular Data
  • Abstract: Not Available Category: geoscientificInformation Source: Not Available Supplemental Information: Not Availble Coverage: EVENT LABEL: * LATITUDE: 45.848000 * LONGITUDE: 9.393000 * ELEVATION: 197.4 m * LOCATION: Northern Italy * METHOD/DEVICE: Multiple investigations
    Data Types:
    • Tabular Data
  • Abstract: We conducted laboratory friction experiments measuring time-dependent frictional strengthening (healing) on fault zone and wall rock samples recovered during drilling at the San Andreas Fault Observatory at Depth (SAFOD), located near the southern edge of the creeping section and in the direct vicinity of three repeating microearthquake clusters. Samples are from two actively creeping fault strands, termed the Central Deforming Zone (CDZ) and the Southwest Deforming Zone (SDZ). For all samples, mineralogic composition was quantified by X-Ray Diffraction (XRD), including clay mineral species. For shearing tests, all samples were crushed and sieved to a grain size < 125 µm. Samples were mixed with distilled water and sheared in a modified Wykeham-Farrance Bromhead ring shear apparatus, under a constant normal load of 1 MPa and controlled temperature of 20 °C. We conducted slide-hold-slide tests, during which the driving velocity is held at zero for a prescribed amount of time (t) before shearing is resumed at 10 µm/s. The hold time is increased in half-order of magnitudes (approximately 3-fold) in the range of 10 to ~350,000 seconds, with at least 1 mm of shearing in between holds. Category: geoscientificInformation Source: Not Available Supplemental Information: Not Availble Coverage: Not Available
    Data Types:
    • File Set
  • Abstract: High-resolution historical land cover datasets are essential not only for simulations of climate and environmental dynamics, but also for projections of future land use, food security, climate and biodiversity. However, widely used global datasets are developed for continental-to-global scale analysis and simulations and the accuracy of global datasets depends on the verification of more regional reconstruction results. Based on the collected statistics of cropland area of each administrative unit (Parish/County/Municipality/Province) in Scandinavia (Sweden, Norway and Denmark) from 1690 to 2015 (Time points are 1690, 1750, 1810, 1875, 1810, 1930, 1950, 1980, 1999 and 2015), the cropland area at the administrative unit level was allocated into 30-arc second grid cells. Category: geoscientificInformation Source: Not Available Supplemental Information: Not Availble Coverage: EVENT LABEL: * LATITUDE: 63.000000 * LONGITUDE: 14.000000 * METHOD/DEVICE: Multiple investigations
    Data Types:
    • Other
  • Abstract: Not Available Category: geoscientificInformation Source: Not Available Supplemental Information: Not Availble Coverage: EVENT LABEL: * LATITUDE: 45.848000 * LONGITUDE: 9.393000 * ELEVATION: 197.4 m * LOCATION: Northern Italy * METHOD/DEVICE: Multiple investigations
    Data Types:
    • Tabular Data
  • Abstract: Bathymetry data was acquired during R/V METEOR cruise M86/1c in the Northeast Atlantic between 06.12.2011 and 23.12.2011. The main aim was the calibration of the EM122 at Gettysburg seamount. CI Citation: Paul Wintersteller (seafloor-imaging@marum.de) as responsible party for bathymetry raw data ingest and approval. Description of the data source: During the M86/1c cruise, the hull-mounted KONGSBERG EM122 multibeam echosounder (MBES) was utilized to perform bathymetric mapping in medium to deep waters. Two linear transducer arrays in a Mills Cross configuration transmit acoustic signals of a nominal sonar frequency of 12 kHz. With 432 soundings per swath, the emission cone has a dimension of 150° across track and 1° along track. With a reception obtained from 288 beams, the actual beam footprint is 1° by 2°. Depending on the roughness of the seafloor, the swath width on a flat bottom is generally maximum six times the water depth. For further information on the system, consult https://www.km.kongsberg.com/. The position and depth of the water column is estimated for each beam by using the detected two-way-travel time and the beam angle, ray-traced through the water column, utilizing a proper sound speed profile. During the M86/1c cruise the EM122 operated to map the Gettysburg seamount, while calibrating the EM122. Responsible person during this cruise / PI: Christian dos Santos Ferreira (cferreira@marum.de) Description of data processing: Postprocessing and products were conducted by the Seafloor-Imaging & Mapping group of MARUM/FB5, responsible person Paul Wintersteller (seafloor-imaging@marum.de). The open source software MB-System (Caress, D. W., and D. N. Chayes, MB-System: Mapping the Seafloor, https://www.mbari.org/products/research-software/mb-system, 2017) was utilized for this purpose. Tide corrections were applied to the M86/1c data; but corrections for roll, pitch, and heave were not necessary. The sound velocity profiles taken during the cruise were sufficient for the MBES data. Using Mbeditviz, artefacts were cleaned manually. NetCDF (GMT) grids of the edited data as well as statistics were created with mbgrid. The published bathymetric EM122 grid of the cruise M86/1c has a resolution of 35 m. No total propagated uncertainty (TPU) has been calculated to gather vertical or horizontal accuracy. A higher resolution is, at least partly, achievable. The grid extended with _num represents a raster dataset with the statistical number of beams/depths taken into account to create the depth of the cell. The extended _sd -grid contains the standard deviation for each cell. The DTMs projections are given in Geographic coordinate system Lat/Lon; Geodetic Datum: WGS84. All grids produced are retrievable through the PANGAEA database (www.pangaea.de). Chief Scientist: D. Quadfasel CSR: https://www2.bsh.de/aktdat/dod/fahrtergebnis/2011/20120064.htm Category: geoscientificInformation Source: Not Available Supplemental Information: Not Availble Coverage: EVENT LABEL: * LATITUDE START: 54.160400 * LONGITUDE START: 12.100600 * LATITUDE END: 10.399600 * LONGITUDE END: -75.539900 * DATE/TIME START: 2011-12-06T00:00:00 * DATE/TIME END: 2011-12-23T00:00:00 * CAMPAIGN: M86/1c * BASIS: Meteor (1986) * METHOD/DEVICE: Underway cruise track measurements
    Data Types:
    • Tabular Data
  • Abstract: This dataset contains high-quality series of meteo-hydrological variables reconstructed for the upper part of the Adda river basin (Central Italian Alps). In particular it includes: - the daily runoff time series of the Lake Como inflows and outflows, the longest for Italian Alps, reconstructed for the 1845-2016 period in the Adda river basin. The same series are also reported at monthly and annual (hydrological year, September-August) scales. - the monthly basin precipitation and temperature series reconstructed from in-situ observations for the 1800-2016 period. - the annual total basin precipitation series (hydrological year, September-August) for the 1846-2016 period with and without the correction for rain-gauge undercatch. - the annual and monthly estimated potential evapotranspiration for the basin (Thornthwaite equation) and annual losses (precipitation - inflows) for the 1846 - 2016 period (hydrological year, September-August). Category: geoscientificInformation Source: Not Available Supplemental Information: Not Availble Coverage: EVENT LABEL: * LATITUDE: 45.848000 * LONGITUDE: 9.393000 * ELEVATION: 197.4 m * LOCATION: Northern Italy * METHOD/DEVICE: Multiple investigations
    Data Types:
    • Other
  • Abstract: This data set reports the growth rate and carbonate chemistry variables (initial and final) for a single-strain culture study on the unicellular diazotrophic cyanobacteria, Crocosphaera watsonii. C. watsonii was cultured at a six different artificial seawater medium pH levels (pH free range = 7.2 - 8.8) in triplicate to investigate the growth rate response to ocean acidification. Growth rates were highest between pH ~7.9 and 8.2 and no growth detected in 2 of 3 replicates at the lowest pH level. This indicates an optimum curve response pattern of this cyanobacteria species to seawater pH, similar to that already observed in calcifying haptophytes. Category: geoscientificInformation Source: Not Available Supplemental Information: Not Availble Coverage: Not Available
    Data Types:
    • Tabular Data
  • Abstract: Not Available Category: geoscientificInformation Source: Not Available Supplemental Information: In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2019) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2020-06-12. Coverage: Not Available
    Data Types:
    • Tabular Data
  • Abstract: Not Available Category: geoscientificInformation Source: Not Available Supplemental Information: Not Availble Coverage: EVENT LABEL: (Sapporo) * LATITUDE: 43.082222 * LONGITUDE: 141.341667 * DATE/TIME: 2005-10-31T15:30:00 * ELEVATION: 15.0 m * LOCATION: Japan * METHOD/DEVICE: Weather station/meteorological observation EVENT LABEL: (Sapporo) * LATITUDE: 43.085833 * LONGITUDE: 141.336389 * DATE/TIME: 2008-10-31T15:30:00 * ELEVATION: 12.0 m * LOCATION: Japan * METHOD/DEVICE: Weather station/meteorological observation
    Data Types:
    • Tabular Data
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