European Diatom Database-Caspian Saline Lake Dataset
Entry ID: uk_nc_eddi_caspian

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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 Caspian dataset consists of 29 benthic and plankton samples lakes in the
Berouskije Bugri area of the Caspian Lowlands, S. Russia. The samples were
collected summer 1996 by K. Labunskaya of the Astrakhan State Technical
University and Steve Juggins, and diatoms were counted by Jane Reed. The
dataset spans a gradient from permanent slightly brackish lakes (salinity < 2
g/l) to shallow, ephemeral hypersaline saline playas (salinity > 100 g/l). The
majority of lakes are of the NaMg-Cl brine types, although sulphate is an
important secondary anion for five sites, and three sites show elevated calcium
concentrations. Although there is a very strong relationship between diatom
composition and salinity this dataset is considered too small to use for a
local transfer function and so samples are only used in the larger combined
Salinity transfer function.

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


Geographic Coverage
 N: 47.63 S: 45.87  E: 47.53  W: 45.75

Data Set Citation
Dataset Originator/Creator: Steve Juggins, Jane Reed
Dataset Title: European Diatom Database-Caspian Saline Lake 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=Caspian


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


Location Keywords
CONTINENT > ASIA > WESTERN ASIA > CASPIAN SEA
CONTINENT > EUROPE > EASTERN EUROPE > RUSSIA


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 >PLANKTON >ZOOPLANKTON    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >PLANKTON >PHYTOPLANKTON    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >BENTHIC HABITAT    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >LAKES    [Definition]


ISO Topic Category
BIOTA
ENVIRONMENT
GEOSCIENTIFIC INFORMATION
INLAND WATERS


Quality
Although there is a very strong relationship between diatom composition and
salinity this dataset is considered too small to use for a local transfer
function and so samples are only used in the larger combined Salinity transfer
function.


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
chloride
conductivity
magnesium
maximum depth of lake
nitrate
pH
potassium
salinity
sodium
soluable reactive phosphorus
sulphate
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: Caspian

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
STEPHEN JUGGINS
Role: TECHNICAL CONTACT
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


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



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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