European Diatom Database-Swedish Dataset
Entry ID: uk_nc_eddi_sweden

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Summary
Abstract: The European Diatom Database (EDDI) is a web-based information system designed
to enhance the application of diatom analysis to problems of surface water
acidification, eutrophication and climate change.

The training set from northern Sweden is an extended 151 sample set that
includes the 119 lakes published in the training set assembled by Korsman &
Birks (1996). The lakes are head-water sites (maximum depth > 2m; 0.04-2 km2;
altitude > 5m; not limed). Sediment samples were taken with a gravity corer
from the deepest point of each lake. With a few exceptions, that were analysed
only once, water chemistry data were means of summer and winter values for the
period 1985-1989. 200-300 diatom valves were counted per surface sediment
sample. Only diatom taxa occurring in at least 5 lakes with a relative
abundance of more than 2% in at least one lake were included in the analyses,
giving at total of 115 taxa in the training set. This calibration set was
developed for a palaeolimnological study of lake acidification in northern
Sweden.

Parent DIF
This data set description is a member of a collection. The collection is described in
uk_nc_eddi


Geographic Coverage
 N: 67.73 S: 63.67  E: 23.63  W: 15.92

Data Set Citation
Dataset Originator/Creator: Tom Korsman, Peter Rosen
Dataset Title: European Diatom Database-Swedish Dataset
Dataset Release Place: Newcastle upon Tyne, United Kingdom
Dataset Publisher: The University of Newcastle
Online Resource: http://craticula.ncl.ac.uk/Eddi/jsp/datasetdesc.jsp?DatasetId=Sweden


Temporal Coverage
Start Date: 1989-01-01
Stop Date: 1990-12-31


Location Keywords
CONTINENT > EUROPE > NORTHERN EUROPE > SCANDINAVIA > SWEDEN


Science Keywords
TERRESTRIAL HYDROSPHERE >SURFACE WATER >LAKES >LAKEWATER CHEMICAL DATA    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >ALKALINITY    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >CONDUCTIVITY    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >PH >LAKEWATER PH TRANSFER FUNCTION    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >TRACE METALS    [Definition]
LAND SURFACE >EROSION/SEDIMENTATION >SEDIMENT CHEMISTRY >SURFACE SEDIMENT SAMPLES    [Definition]
LAND SURFACE >EROSION/SEDIMENTATION >SEDIMENTS >SURFACE SEDIMENT SAMPLES    [Definition]
BIOLOGICAL CLASSIFICATION >PROTISTS >DIATOMS    [Definition]
BIOLOGICAL CLASSIFICATION >PLANTS >MICROALGAE >DIATOMS
BIOSPHERE >AQUATIC ECOSYSTEMS >LAKES    [Definition]


ISO Topic Category
BIOTA
ENVIRONMENT
GEOSCIENTIFIC INFORMATION
INLAND WATERS


Quality
Only diatom taxa occurring in at least 5 lakes with a relative abundance of
more than 2% in at least one lake were included in the analyses, giving at
total of 115 taxa in the training set.


Access Constraints
None


Use Constraints
None


Keywords
The European Diatom Database
surface-sediment diatom assemblages
surface water acidification
eutrophication
climate change
Plantae
Plant
Chromista
Bacillariophyta
alkalinity
calcium + magnesium
color
conductivity
magnesium
maximum depth of lake
pH
water depth of diatom sample


Data Set Progress
COMPLETE


Data Center
European Diatom Database, University of Newcastle, UK    [Information]
Data Center URL: http://craticula.ncl.ac.uk/Eddi/jsp/
Dataset ID: Sweden

Data Center Personnel
Name: STEPHEN JUGGINS
Phone: 44 191 222 8799
Fax: 44 191 222 5421
Email: Stephen.Juggins at ncl.ac.uk
Contact Address:
University of Newcastle
Department of Geography
Newcastle upon Tyne
NEI 7RU
Country: UNITED KINGDOM



Distribution
Fees: None


Personnel
TOM KORSMAN
Role: TECHNICAL CONTACT
Phone: 46 90 7865423
Fax: 46 90 7866705
Email: tom.korsman at eg.umu.se
Contact Address:
Dept Ecology & Environmental Science, Ume? University, SE-901
87 Ume?
Country: Sweden


TYLER B. STEVENS
Role: DIF AUTHOR
Phone: (301) 614-6898
Fax: 301-614-5268
Email: Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA


Publications/References
Korsman, T. & Birks, H.J.B., 1996, Diatom-based reconstruction from northern
Sweden: a comparison of reconstruction techniques, Journal of Paleolimnology
15:65-77.

Creation and Review Dates
DIF Creation Date: 2002-09-23
Last DIF Revision Date: 2012-12-20
Future DIF Review Date: 2003-09-23

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