2026-04-06T08:21:16Z
http://dmoai.cloud.dkrz.de/oai/provider
oai:wdcc.dkrz.de:iso_3580506
2026-04-06T00:08:20Z
iso-wdcc-doi
wdc-climate.de:3580506
eng; USA
collection
coastMap_Substrate_Mud
Dipl.-Geogr. Ulrike Kleeberg
Helmholtz-Zentrum Hereon
https://hereon.de/
pointOfContact
Dipl.-Geogr. Ulrike Kleeberg
Helmholtz-Zentrum Hereon
https://hereon.de/
pointOfContact
2017-11-24T12:55:44
ISO 19115
ISO 19115-2:2009
Mud content of Noarth Sea surface sediments
2017-12-13
publication
1
coastMap_Substrate_Mud
doi:10.1594/WDCC/coastMap_Substrate_Mud
Dr. Frank-Detlef Bockelmann
Helmholtz-Zentrum Geesthacht, Zentrum für Material- und Küstenforschung GmbH
not filled
Email: frank-detlef.bockelmann@hzg.de
principalInvestigator
Prof. Dr. Kay-Christian Emeis
University of Hamburg
http://www.cen.uni-hamburg.de/
Email: kay.emeis@uni-hamburg.de
principalInvestigator
Dr. Frank-Detlef Bockelmann
Helmholtz-Zentrum Geesthacht, Zentrum für Material- und Küstenforschung GmbH
not filled
Email: frank-detlef.bockelmann@hzg.de
originator
Dr. Frank-Detlef Bockelmann
Helmholtz-Zentrum Geesthacht, Zentrum für Material- und Küstenforschung GmbH
not filled
Email: frank-detlef.bockelmann@hzg.de
author
WDC Climate at DKRZ
publisher
abstract:
In grain size analysis, the proportion of particles with a diameter of less than 63 µm is commonly referred to as the mud content of a sediment sample. The mud content is an important biophysical variable that often can be mapped with a quantifiable correspondence to organic matter, contaminants and the occurrence of benthic species and assemblages. Thismap conveys information on the percentage mud content of seabedsediments in the North Sea. It has been produced with multivariate geostatistics (external drift kriging) using water depth as a trend variable. The underlying data set is a compilation of over 30,000 sediment samples from many national and Europaen surveys conducted over a period of more than 50 years. Due to the vintage of some samples in the database, users are advised to consider the dynamic nature of the seafloor when using the data and when creating derived surrogate based habitatmaps. Also, due to the diversity of sources for the pointdata, users should be aware of the differing methods by which the grain size analyses were conducted. As a consequence, map confidence is not necessarily uniform and thus areas not always comparable, even though the interpolation surface may look continuous.
purpose:
The map shows the percentage mud content (silt + clay) of surface sediments in the North Sea predicted by interpolation of legacy grain size distribution data. It has been produced to aid in describing physical habitat characteristics and to supply consistent baseline data and boundary conditions for ecological and biophysical modelling.
Dipl.-Geogr. Ulrike Kleeberg
Helmholtz-Zentrum Hereon
https://hereon.de/
pointOfContact
zip-file
geodata
observational data
seafloor conditions
ship
CC-BY-NC-4.0: Creative Commons Attribution Non Commercial 4.0 International https://creativecommons.org/licenses/by-nc/4.0/
eng; USA
-5.0
12.0
50.0
62.0
calendrical
1960-01-01
2014-12-31
Mud content
not filled; unit: %
zip-file
1
https://www.wdc-climate.de/ui/entry?acronym=coastMap_Substrate_Mud
information
collection
n/a
None