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Lake level status grids

Jan 18, 2002

These lake status grids were developed mainly for use in climate model validation but remain versatile for other paleoclimatic research.
The global lake status database used in this study resulted from the merging of 3 main lake status databases available from
NOAA/NGDC Paleoclimatology program in Boulder, Colorado, USA (http://www.ngdc.noaa.gov/paleo/).

***PLEASE CITE REFERENCE BELOW WHEN USING LAKE GRIDS***

REFERENCE: Viau, A.E. and Gajewski, K., 2001. Holocene variations in the global hydrological cycle quantified by objective gridding of lake level databases. Journal of Geophysical Research-Atmosphere 106(D23): 31703-31716.

The lake status estimates are standardized for use on a 3° x 3° lat/long grid size for 0, 3, 6, 9 and 12 ka.

The grids are arranged in spreadsheet format (Microsoft EXCEL .xls) and contains 3 sheets:

A readme sheet
The indicator estimates (indicator kriging method)
The continuous estimates (ordinary kriging method)
The data are arranged as follows:

By longitude west to east and by latitude north to south (ie. -180, -90 to 180, 90)
followed by individual lake status estimates for each time period (0,3,6,9,12 calendar years - ka).

Lake statuses have been standardized into 3 categories according to the Oxford Lake Level Database.

High
Intermediate
Low
-99 values represent missing or masked out grid cells

Note: that continuous estimates may vary between 1 and 3

References for original databases

The Oxford Lake Level Database (OLLDB)

Street-Perrott, F.A., D.S. Marchand, N. Roberts, and S.P Harisson, 1989.Global Lake-Level Variations from
18,000 to 0 Years Ago: A Paleoclimatic Analysis. U.S. Department of Energy Technical Report 46, Washington, D.C. 20545.
Distributed by National Technical Information Service, Springfield, VA 22161.

COHMAP Members, 1994, Oxford Lake Levels Database. IGBP PAGES/World Data Center-A for Paleoclimatology
Data Contribution Series # 94-028. NOAA/NGDC Paleoclimatology Program,Boulder CO, USA.

The European Lake Level Databases (ELLDB)

Yu, G. and S. Harrison, 1995, Lake Status Records from Europe, Database Doc. IGBP PAGES/World Data Center-A
for Paleoclimatology Data Contribution Series # 95-009. NOAA/NGDC Paleoclimatology Program, Boulder CO, USA.

The Former Soviet Union and Mongolia Lake level Database.

Tarasov, P.E., et al, 1996, Lake Status Records from the FSU, Database Documentation Version 2.
IGBP PAGES/World Data Center-A for Paleoclimatology Data Contribution Series # 96-032.
NOAA/NGDC Paleoclimatology Program, Boulder CO, USA.

Download Lake level grids (click here)

Original data distributions GLOBALSET.gif (7105 bytes)
0 ka
GLOBALSET3KA.gif (6829 bytes)3 ka
origlegend.gif (2961 bytes) GLOBALSET6KA.gif (6816 bytes)
6 ka
GLOBALSET9KA.gif (6656 bytes)
9 ka
globalset12ka.gif (6212 bytes)
12 ka
Notice the spatial variability in the original distributions

Lake status grids

Indicator

Continuous

Lake status at 0 ka

gridlegend.gif (2953 bytes)

INDGRID0.gif (6841 bytes) congrid0ka.gif (6936 bytes)
Lake status at 3 ka INDGRID3.gif (6839 bytes) congrid3ka.gif (6930 bytes)
Lake status at 6 ka INDGRID6.gif (6771 bytes) congrid6ka.gif (6889 bytes)
Lake status at 9 ka INDGRID9.gif (6680 bytes) congrid9ka.gif (6866 bytes)
Lake status at 12 ka INDGRID12.gif (6477 bytes) congrid12ka.gif (6530 bytes)
Anomaly Maps

Indicator

Continuous

3 - 0 ka

anomalylegened.gif (3153 bytes)

anomaly3-0.gif (7333 bytes) conanom30.gif (6887 bytes)
6 - 0 ka anomaly6-0.gif (7420 bytes) conanoma60.gif (6960 bytes)
9 - 0 ka anomaly9-0.gif (7319 bytes) conanom90.gif (6971 bytes)
12 - 0 ka anomaly12-0.gif (7008 bytes) conanom120.gif (6635 bytes)
Example Data - Model Verification (6°x3°) for P-E model estimates

Indicator

Continuous

CCM1 indccm1.gif (48810 bytes) conccm1.gif (45649 bytes)

legendccm1.gif (1941 bytes)

 

 

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