noaa-lake-23092
Lake Miragoane, Caribbean Past 10,500 Years Oxygen Isotope Data
Hodell, D.A.; Curtis, J.H.; Jones, G.A.; Higuera-Gundy, A.; Brenner, M.; Binford, M.W.; Dorsey, K.T.
Lake Miragoane, Caribbean Past 10,500 Years Oxygen Isotope Data
2017-11-13
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/23092
Investigator
D.A.
Hodell
Investigator
J.H.
Curtis
Investigator
G.A.
Jones
Investigator
A.
Higuera-Gundy
Investigator
M.
Brenner
Investigator
M.W.
Binford
Investigator
K.T.
Dorsey
earth science
paleoclimate
paleolimnology
delta 18O,ostracod,null,per mil,null,paleolimnology,null,null,N,oxygen isotopes from Candona sp.
earth science
paleoclimate
paleolimnology
age,null,null,year Common Era,null,paleolimnology,null,null,N,null
earth science
paleoclimate
paleolimnology
notes,null,null,null,null,paleolimnology,null,null,C,core name
earth science
paleoclimate
speleothems
oxygen isotopes
geoscientificInformation
12689 cal yr BP
2 cal yr BP
Complete
18.4
18.4
-73.05
-73.05
14
14
Ocean
Atlantic Ocean
North Atlantic Ocean
Caribbean Sea
Haiti
Lake Miragoane>LATITUDE 18.4>LONGITUDE -73.05
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
Sediment cores from low-latitude lakes provide some of the best records of tropical climate change since the late Pleistocene. Here we report a high-resolution reconstruction of Caribbean climate based on 18O/16O ratios in ostracod shells from Lake Miragoane, Haiti. Our results show that the climate was dry and the lake level low during the latter part of the Younger Dryas chronozone (10.5–10 kyr BP), but that water level in the lake rose at the end of the last deglaciation (∼ 10–7 kyr BP), reflecting the wetter conditions of the early Holocene which persisted for nearly 4,000 years. Lake level declined at ∼3.2 kyr BP with the onset of a drier climate which generally prevailed throughout the late Holocene. These long-term changes in Caribbean climate are generally similar to those found for Africa over the same period, and can be largely explained by orbitally induced (Milankovitch) variations in seasonal insolation which modified the intensity of the annual cycle. Superimposed on the orbitally forced climate trends are more abrupt climate events that result from complex, nonlinear interactions in the ocean—atmosphere system. The interpretation of Antillean biogeography and the development of Caribbean and Mesoamerican culture must be considered in the context of such shifts in climate.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/Miragoane.Hodell.1991.txt
NOAA Template File; Lake Miragoane Oxygen Isotope Data (NOAA Template Format)
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/Miragoane.Hodell.1991.lpd
Linked Paleo Data (LiPD) File Format; Lake Miragoane Oxygen Isotope Data (LiPD Format)
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11