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NIOZ jetty hourly data for temperature and salinity for 2005
No full textNIOZ jetty LON=4.789E LAT=53.002N, using EXO sensor at depth of -1.5 meter NAP. Derived product from 10 second calibrated data. Separate calibration measurement at 2 week intervals
NIOZ jetty hourly data for temperature and salinity for 2009
No full textNIOZ jetty LON=4.789E LAT=53.002N, using EXO sensor at depth of -1.5 meter NAP. Derived product from 10 second calibrated data. Separate calibration measurement at 2 week intervals
NIOZ jetty hourly data for temperature and salinity for 2015
No full textNIOZ jetty LON=4.789E LAT=53.002N, using EXO sensor at depth of -1.5 meter NAP. Derived product from 10 second calibrated data. Separate calibration measurement at 2 week intervals
NIOZ jetty hourly data for temperature and salinity for 2016
No full textNIOZ jetty LON=4.789E LAT=53.002N, using EXO sensor at depth of -1.5 meter NAP. Derived product from 10 second calibrated data. Separate calibration measurement at 2 week intervals
Biodiversiteit en abiotische metingen op de Slow Mill locatie off-shore Texel in 2019. NIOZ Report 2020-06
No full textIn 2019 NIOZ was involved in biodiversity research and the measurement of abiotic conditions at a location where a wave energy converter device (SLOWMILL) will be placed. The location lies 4 km offshore Texel and has a water depth of 12 meter.
In February 2019. Fauna was sampled with a boxcore. The analyses of these samples showed that abundance and biodiversity is relatively low, and typical for the high energetic coastal environment. The addition of hard substratum, being a measurement frame, showed that local abundance and biodiversity increased enormously. With 18 species which were not found in the sandy bottom, biodiversity increased with ~ 50%. The densities of macro faunal specimens on the hard substratum was 400 times higher than densities in the natural soft sediments.
The measurements of the physical environment showed that the location is dominated by along shore tidal currents of approximately 0.5 m/s. The residual current is in northward direction. During a south westerly storm (8 Bft) near bottom currents were over 1 m/s. Significant wave heights during the storm was 2.5 meter, with a maximum of 4.8 meter. Mean wave period was 3.5 seconds. Peak period is 5.8 seconds and linked to waves from a northerly direction.
Temperature, salinity and turbidity measurements show a well defined tidal periodicity. The turbidity data clearly show the effect of wind and wave conditions on the total suspended matter. Peak concentrations were measured after the storm when resuspended material resettles. The data also suggest that there is lateral transport of suspended material, most likely derived from the bordering shallow Wadden Sea
Dissolved Cd, Co, Cu, Fe, Mn, Ni, Pb and Zn in the Arctic Ocean
No full textDuring the Polarstern (PS94) expedition in summer 2015, part of the international GEOTRACES program sources and sinks of dissolved (D) Cd, Co, Cu, Fe, Mn, Ni, Zn and Pb were studied in the central Arctic Ocean (with the exception of Pb, described by Gerringa et al., 2021). In the Polar Surface Water in which the TransPolar Drift (TPD) is situated, salinity and d18O derived fractions indicated a distinct riverine source for silicate DCo, DCu, DFe, DMn and DNi. Linear relationships between DMn and the meteoric fraction depended on the source distance, likely due to Mn-precipitation with transport time. In the upper 50 m of the Makarov Basin, outside the TPD core, DCo, DMn, DNi, DCd and DCu were enriched by Pacific waters, whereas DFe seemed diluted. DCo, DFe, DMn and DZn were relatively high in the Barents Sea and enriched Atlantic water going into the Nansen Basin. Deep concentrations of all metals were significantly lower in the Makarov Basin compared to the Nansen and Amundsen, the Eurasian, Basins. The Gakkel Ridge hydrothermal input and higher continental slope convection are explanations of higher metal concentrations in the Eurasian Basins. Although scavenging rates are lower in the Makarov Basin compared to the Eurasian Basins, the residence time is longer and therefore we suggest that scavenging can decrease the dissolved concentrations with time. This study provides a baseline to assess future change, and additionally identifies main processes driving trace metal distributions. Our results underline the importance of fluvial input as well as shelf sources and internal cycling, notably scavenging, for the distribution of bio-active metals in the Arctic Ocean
Waddenmozaiek cruise report bemonstering sublitoraal Nederlandse Waddenzee 2019
No full textCruise report with some preliminary results of the first subtidal sampling campaign covering the entire Dutch Wadden Sea. The results presented in this cruise report are based on field data
NIOZ jetty hourly data for temperature and salinity for 2017
No full textNIOZ jetty LON=4.789E LAT=53.002N, using EXO sensor at depth of -1.5 meter NAP. Derived product from 10 second calibrated data. Separate calibration measurement at 2 week intervals
High-resolution current meter and hydrographic data from the Irminger Current mooring array 2018 - 2020
No full textThe Irminger Current mooring array consists of 5 subsurface ocean moorings in the Irminger Current on the Reykjanes Ridge in the North Atlantic Ocean. The fourth high-resolution data set of oceanographic variables from instrumentation of these moorings was collected from 16 of July 2018 to 2 August 2020. The moorings are named IC0, IC1, IC2, IC3 and IC4 going from west to east. The Irminger Current mooring array is part of the international Overturning of the Subpolar North Atlantic Program (OSNAP, www.o-snap.org) which runs from 2014 to at least 2022. The data set consists of ocean temperature, salinity, current velocities, pressure and time. Variables were collected at different time intervals, varying from 5 minutes to 1 hour. The data have been calibrated and quality controlled. The data and the metadata are stored in NetCDF files following the Climate Forecast (CF) conventions, see http://cfconventions.or
High-resolution current meter and hydrographic data from the Irminger Current mooring array 2015-2016
No full textThe Irminger Current mooring array consists of 5 subsurface ocean moorings in the Irminger Current on the Reykjanes Ridge in the North Atlantic Ocean. The second high-resolution data set of oceanographic variables from instrumentation on these moorings was collected from 15 July 2015 to 6 August 2016. The moorings are named IC0, IC1, IC2, IC3, and IC4 going from west to east. The Irminger Current mooring array is part of the international Overturning of the Subpolar North Atlantic Program (OSNAP, www.o-snap.org) which runs from 2014 to at least 2018. The data set consists ocean temperature, salinity, current velocities, pressure and time. Variables were collected at different time intervals, varying from 5 minutes to 1 hour. The data have been calibrated and quality controlled. The data and metadata are stored in NetCDF files following the Climate Forecast (CF) conventions, see http://cfconventions.org