Ancient Lake Level (Caspian Sea and Aral Sea) Paleoclimate DataEntry ID: EARTH_LAND_NGDC_PALEO_LAKELEVEL
Abstract: The lake level dataset contains data on the reconstructed extent of the Aral
and Caspian Seas during the last glacial maximum 18,000 YBP. The
reconstructions were made by Olga Dennisenko (Department of Geography, Moscow
State University), Sandy Harrison (Department of Earth Sciences, Uppsala
University), Colin Prentice (Department of Plant Ecology, Lund University), and
Martin Sykes (Department ... of Ecological Botany, Uppsala University).
The data file BIGSEA.DAT is an ASCII file containing the Latitude and Longitude
of one-half degree grid cells which were expanded lake areas at 18,000 YBP.
The catchment areas computed are based on the work of Kvasov, which indicate a
lake level rise of +74m. The Caspian Sea reconstruction is believed to be
reliable, while the Aral Sea evidence is equivocal. The authors recommend using
only the Caspian Data.
Geomorphic evidence indicates that the Aral and Caspian Seas were much expanded
at the last glacial maximum. This gridded dataset shows the extent of these
lakes at 0.5 resolution, based on the work of Kvasov (1975a, 1975b) which
indicates a lake level rise of +74m.
Data Set Citation
Dataset Originator/Creator: Harrison, S., et al.
Dataset Title: Lake Status Records, Caspian and Aral Seas
Dataset Series Name: IGBP PAGES/WDC Data Contribution Series #: 91-008
Dataset Release Date: August 1991
Dataset Release Place: Boulder, CO
Dataset Publisher: IGBP PAGES/World Data Center for Paleoclimatology
Issue Identification: 91-008
Other Citation Details: NOAA/NCDC Paleoclimatology ProgramOnline Resource: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/paleolimnology/lakelevels/ca...
Paleo Temporal Coverage
Latitude Resolution: 0.5 degree
Longitude Resolution: 0.5 degree
Horizontal Resolution Range: 50 km - < 100 km or approximately .5 degree - < 1 degree
TERRESTRIAL HYDROSPHERE > SURFACE WATER > LAKES
PALEOCLIMATE > OCEAN/LAKE RECORDS > LAKE LEVELS
PALEOCLIMATE > OCEAN/LAKE RECORDS > SEDIMENTS
PALEOCLIMATE > OCEAN/LAKE RECORDS > STRATIGRAPHIC SEQUENCE
SOLID EARTH > ROCKS/MINERALS/CRYSTALS > AGE DETERMINATIONS
SOLID EARTH > ROCKS/MINERALS/CRYSTALS > SEDIMENTARY ROCKS
PALEOCLIMATE > PALEOCLIMATE RECONSTRUCTIONS > LAKE LEVEL RECONSTRUCTION
ISO Topic Category
Use Constraints If you wish to use this data set as a mask for LGM simulations, please cite
Prentice et al. (1993) as the source. Please note, there is new data which
suggests that the extent of these lakes may have been somewhat smaller than
implied by the information given in Kvasov (1975a, 1975b). A new data set is
currently being prepared and will be included on this website in the near
Data Set Progress
Distribution Media: online - FTP
Distribution Format: ascii, zip, pdf
Phone: +44 (0)117 33 17223
Fax: +44 (0)117 928 7878
Email: sandy.harrison at bristol.ac.uk
BRIDGE School of Geographical Sciences University of Bristol University Road
Postal Code: BS8 1SS
Country: United Kingdom
Kvasov, D.D., 1975. The Late Quaternary History of Large Lakes and Inland Seas of Eastern Europe. Lenningrad, 248pp. (Russian Language)
Kvasov, D.D., 1975. The Late Quaternary History of Large Lakes and Inland Seas of Eastern Europe. Annales Academiae Scientiarum Fennicae Series A III. Geologica-Geographica Volume 127, 71pp. (English Language Summary)
Prentice, I.C., M.T. Sykes, M. Lautenschlager, S.P. Harrison, O. Denissenko and P.J. Bartlein (1993). Modelling global vegetation patterns and terrestrial carbon storage at the Last Glacial Maximum. Global Ecology and Biogeography Letters 3: 67-76.
Creation and Review Dates
Last DIF Revision Date: 2006-09-29