Balascio, N. L. , DAndrea, W. J. , Bradley, R. S. , Perren, B. B.

Balascio, N. L., D’Andrea, W. J., Bradley, R. S. and Perren, B. B.: Biogeochemical evidence for hydrologic changes during the Holocene in a lake sediment record from southeast Greenland, The Holocene, 23(10), 1428–1439, doi:10.1177/0959683613493938, 2013.

Biogeochemical evidence for hydrologic changes during the Holocene in a lake sediment record from southeast Greenland

ASE350, HP 6890 GC, Finnigan MAT Delta+ XL mass spectrometer

dDprecip reflects Australasian monsoon strength based on modern precipitation isotope data from nearby station (Bali). "At Bali, the closest isotopic monitoring site to Lake Lading, over 80% of precipitation measured from July 2003 to June 2006 fell between October and March (61% during Novembera€“February), coinciding with the southernmost extension of the ITCZ associated with summer intensification of the Australasian monsoon (Figure 1c). The weighted Octo- bera€“March average dDprecip during that time period was 18.72%, similar to the weighted annual (Julya€“June) average of 20.42%, reflecting the strong control of wet season dDprecip on the annual average dDprecip [Kurita et al., 2009]. While large-scale changes in atmospheric circulation could certainly cause the relationship between precipitation amount and dDprecip to vary, these modern observations indicate that dDprecip reflects Australasian monsoon strength."

Because plant waxes are produced year-round, we interpret dDwax to record weighted annual dDprecip, which is highly influenced by variations in the Australasian monsoon.

this input rejects the correct dates for a BACON age model

Daily precipitation amount and dD were measured during 2003–2006 as part of campaign by JAMSTEC.

Kurita, N., Ichiyanagi, K., Matsumoto, J., Yamanaka, M. D., & Ohata, T. (2009). The relationship between the isotopic content of precipitation and the precipitation amount in tropical regions. Journal of Geochemical Exploration, 102(3), 113–122.

depth (MAT71f3ea6720): interpretation4_scope: '' has been replaced by 'climate'
year (MATd236ae2ec2): interpretation4_scope: '' has been replaced by 'climate'