European Diatom Database-Finnish Dataset
Entry ID: uk_nc_eddi_Finland

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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 Finish Lapland training set comprises 151 samples from lakes in the pH
range 5.0-8.3. A sub-set of 30 of these lakes has been published as a training
set (Weckstr?m et al. 1997). These lakes are distributed across the treeline,
spanning boreal forest to tundra along a steep climatic gradient. The extended
training set was produced with the intention of creating a transfer function
for temperature. Surface sediment samples (0-1cm) were collected using a
gravity corer during summer 1994 and 1995. Samples for analysis of water
chemistry were collected during July 1995. Approximately 500 diatom valves per
sample were counted. Only those species present at greater than 1% in any
single sample and with >3 occurrences and that are identified to species level
or better were included in the model (118 taxa).

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


Geographic Coverage
 N: 69.87 S: 66.92  E: 29.27  W: 20.67

Data Set Citation
Dataset Originator/Creator: Atte Korhola, Jan Weckstr?m
Dataset Title: European Diatom Database-Finnish 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=Finland


Temporal Coverage
Start Date: 1995-01-01
Stop Date: 1996-12-31


Location Keywords
CONTINENT > EUROPE > NORTHERN EUROPE > SCANDINAVIA > FINLAND
GEOGRAPHIC REGION > ARCTIC
GEOGRAPHIC REGION > POLAR


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 >NITROGEN COMPOUNDS    [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


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
ammonium
calcium
conductivity
iron
magnesium
maximum depth of lake
pH
potassium
Secchi depth
sodium
total organic carbon
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: Finland

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
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


ATTE KORHOLA
Role: TECHNICAL CONTACT
Phone: 358 9 19128612
Fax: 358 9 19128701
Email: atte.korhola at helsinki.fi
Contact Address:
Department of Ecology and Systematics, Division of
Hydrobiology, P.O.Box 17 (Arkadiankatu 7), FIN-00014
University of Helsinki
Country: Finland


Publications/References
Weckstr?m, J., Korhola, A. & T. Blom. 1997. The relationship between
diatoms and water temperature in thirty subarctic Fennoscandian
Lakes. Arctic and Alpine Research 29: 75-92.

Creation and Review Dates
DIF Creation Date: 2002-09-23
Last DIF Revision Date: 2012-12-21
Future DIF Review Date: 2003-09-23

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