noaa-lake-9701
Lough-na-Shade, Ireland 1000Yr Ostracode Stable Isotope Data
Holmes, J.A.; Arrowsmith, C.; Austin, W.E.N.; Boyle, J.; Fisher, E.; Holme, R.; Marshall, J.F.; Oldfield, F.; van der Post, K.
Lough-na-Shade, Ireland 1000Yr Ostracode Stable Isotope Data
2010-10-28
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/9701
Investigator
J.A.
Holmes
Investigator
C.
Arrowsmith
Investigator
W.E.N.
Austin
Investigator
J.
Boyle
Investigator
E.
Fisher
Investigator
R.
Holme
Investigator
J.F.
Marshall
Investigator
F.
Oldfield
Investigator
K.
van der Post
earth science
paleoclimate
paleolimnology
delta 18O,ostracod,null,per mil VPDB,null,paleolimnology,null,null,N,Candona sp.
earth science
paleoclimate
paleolimnology
depth,null,null,centimeter,null,paleolimnology,null,null,N,null
earth science
paleoclimate
paleolimnology
age,null,null,year Common Era,null,paleolimnology,null,null,N,null
earth science
paleoclimate
paleolimnology
delta 13C,ostracod,null,per mil VPDB,null,paleolimnology,null,null,N,Candona sp.
earth science
paleoclimate
paleolimnology
oxygen isotopes
earth science
paleoclimate
paleolimnology
carbon isotopes
geoscientificInformation
North Atlantic Oscillation
decadal resolution
westerlies
958 AD
1940 AD
992 cal yr BP
10 cal yr BP
Complete
54.3504
54.3504
-6.6901
-6.6901
Continent
Europe
Northern Europe
British Isles
Ireland
Lough-na-Shade>LATITUDE 54.3504>LONGITUDE -6.6901
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
Holmes, J., C. Arrowsmith, W. Austin, J. Boyle, E. Fisher,
R. Holme, J. Marshall, F. Oldfield, and K. van der Post. 2010.
Climate and atmospheric circulation changes over the past 1000
years reconstructed from oxygen isotopes in lake-sediment
carbonate from Ireland.
The Holocene, Vol. 20, No. 7, pp. 1105-1111.
DOI: 10.1177/0959683610369504
A 1000 year long subdecadal-resolution record of carbonate oxygen
isotopes (d18Oc) from Lough-na-Shade, Ireland, provides evidence
for changing atmospheric circulation over northwest Europe.
The total range of d18Oc values (>5‰) is too large to be explained
by changes in water temperature. Moreover, good correlation between
the lake record and a previously published d18O time series from
an Irish speleothem indicates that the changes in oxygen isotopes
are best explained by variations in the isotopic composition of
precipitation. The amplitude of change during this period is
too large to be explained by shifts in condensation temperature.
Instead we suggest that there have been changes in vapour source
and transport paths connected with shifts in atmospheric circulation.
Changes from a source area from further south within the North Atlantic
to one further to the north could explain the prominent positive shift
in oxygen-isotope values between the early eighteenth and early
nineteenth centuries, for example. Our results also demonstrate
the value of a 'multiple-archive' approach to deconvolving
lake-based carbonate isotope profiles, which are often complex.
STUDY NOTES: High-resolution stable isotope data on ostracod shells from
Lough-na-Shade, N. Ireland. Samples are mainly Candona candida,
but a few are C. neglecta. Lough-na-Shade is a small (0.3 ha
surface area), shallow (maximum depth ~3.5 m) lake in Co. Armagh,
N Ireland.
d18O and d13C on shells of the ostracod Candona sp.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/uk/lough-na-shade2010.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/uk/lough-na-shade2010.xls
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11