@article {243,
	title = {Coordinated hydrological regimes in the Indo-Pacific region during the past two millennia},
	journal = {Paleoceanography},
	volume = {25},
	year = {2010},
	note = {id: 795; 565UW Times Cited:0 Cited References Count:42Y},
	abstract = {Instrumental data suggest that major shifts in tropical Pacific atmospheric dynamics and hydrology have occurred within the past century, potentially in response to anthropogenic warming. To better understand these trends, we use the hydrogen isotopic ratios of terrestrial higher plant leaf waxes ( delta D-wax) in marine sediments from southwest Sulawesi, Indonesia, to compile a detailed reconstruction of central Indo-Pacific Warm Pool (IPWP) hydrologic variability spanning most of the last two millennia. Our paleodata are highly correlated with a monsoon reconstruction from Southeast Asia, indicating that intervals of strong East Asian summer monsoon (EASM) activity are associated with a weaker Indonesian monsoon (IM). Furthermore, the centennial-scale oscillations in our data follow known changes in Northern Hemisphere climate ( e. g., the Little Ice Age and Medieval Warm Period) implying a dynamic link between Northern Hemisphere temperatures and IPWP hydrology. The inverse relationship between the EASM and IM suggests that migrations of the Intertropical Convergence Zone and associated changes in monsoon strength caused synoptic hydrologic shifts in the IPWP throughout most of the past two millennia.},
	issn = {0883-8305},
	doi = {10.1029/2009pa001871},
	author = {Tierney, J. E. and Oppo, D. W. and Rosenthal, Y. and Russell, J. M. and Linsley, B. K.}
}
@article {242,
	title = {A molecular perspective on Late Quaternary climate and vegetation change in the Lake Tanganyika basin, East Africa},
	journal = {Quaternary Science Reviews},
	volume = {29},
	year = {2010},
	note = {id: 1850; 574XV Times Cited:0 Cited References Count:111Y},
	pages = {787-800},
	abstract = {Characterizing the nature of past hydrological change and its interactions with vegetation is fundamental to acquiring a better understanding of continental tropical climate dynamics. Here, we outline major shifts in the climate and ecosystem of tropical East Africa for the past 60,000 years (60 ka) by examining molecular records of hydrology, vegetation, and temperature from a sediment sequence from Lake Tanganyika. We demonstrate, via comparison with pollen spectra, that stable carbon isotopes measured on higher plant leaf waxes (delta C-13(wax)) are a reliable proxy for vegetation change. In addition we argue that the D/H ratio of higher plant leaf waxes (delta D-wax) is a robust and independent indicator of past changes in aridity, and is not affected by regional vegetation change directly. Our paired, compound-specific isotope data show that shifts in vegetation lead major changes in hydrology in the Tanganyika basin at several major climate transitions during the past 60,000 years, suggesting that vegetation in the Tanganyika basin is not as sensitive to aridity as previous studies have suggested and that variations in carbon dioxide, temperature, and internal ecosystem dynamics are equally, if not more, important. We hypothesize that regional vegetation change may exert a positive feedback on regional hydrology, thus partially accounting for the abrupt threshold behavior evident in our paleohydrological data. Furthermore, we find that past changes in Tanganyika basin climate and ecology are closely linked to concentrations of atmospheric trace gases, highlighting the paramount influence of global climatic shifts upon regional tropical climate over glacial/interglacial timescales. (C) 2009 Elsevier Ltd. All rights reserved.},
	issn = {0277-3791},
	doi = {10.1016/j.quascirev.2009.11.030},
	author = {Tierney, J. E. and Russell, J. M. and Huang, Y. S.}
}
@article {253,
	title = {Subdecadally resolved paleoceanography of the Peru margin during the last two millennia},
	journal = {Geochemistry Geophysics Geosystems},
	volume = {9},
	year = {2008},
	note = {id: 780; 303SA Times Cited:7 Cited References Count:54Y},
	abstract = {Using multiproxy sediment core data from the El Nino-Southern Oscillation (ENSO)-sensitive Peru margin, subdecadally resolved (down to similar to 0.6 year) surface productivity and subsurface denitrification are reconstructed for the last similar to 2300 years. Scanning XRF generated major elemental data (Ti, Fe, Si) correlate well with discrete inductively coupled plasma-atomic emission spectometry (ICP-AES) analyses and together with X-radiography (core density) are used as productivity indices. As surface productivity in this marine region is strongly impacted by ENSO, higher (lower) periods of surface productivity are inferred to represent a persistent normal/La Nina (El Nino)-like state. Surface productivity and subsurface denitrification appear to have remained intimately coupled during this period due to direct stimulation of requisite subsurface suboxia and/or hydrographic restructuring. The late Holocene Peru margin is characterized by persistent moderate productivity and subsurface denitrification punctuated at centennial scale by shorter-duration periods of high production and intense denitrification. These centennial-scale events are likely analogous to modern observations of decadal-scale "regime shifts{\textquoteright}{\textquoteright} but of higher amplitude and provide a background history for future natural changes to this system. Solar (irradiance) variability is suggested to have influenced Peru productivity as evidenced in numerous high-resolution paleorecords from the northern hemisphere.},
	issn = {1525-2027},
	doi = {10.1029/2007gc001744},
	author = {Agnihotri, R. and Altabet, M. A. and Herbert, T. D. and Tierney, J. E.}
}
@article {266,
	title = {Abrupt climate change in southeast tropical Africa influenced by Indian monsoon variability and ITCZ migration},
	journal = {Geophysical Research Letters},
	volume = {34},
	year = {2007},
	note = {id: 1851; 201ZV Times Cited:4 Cited References Count:31Y},
	abstract = {The timing and magnitude of abrupt climate change in tropical Africa during the last glacial termination remains poorly understood. High-resolution paleolimnological data from Lake Tanganyika, Southeast Africa show that wind-driven seasonal mixing in the lake was reduced during the Younger Dryas, Inter-Allerod Cool Period, Older Dryas, and Heinrich Event 1, suggesting a weakened southwest Indian monsoon and a more southerly position of the Inter-Tropical Convergence Zone over Africa during these intervals. These events in Lake Tanganyika, coeval with millennial and centennial-scale climate shifts in the high latitudes, suggest that changes in ITCZ location and Indian monsoon strength are important components of abrupt global climate change and that their effects are felt south of the equator in Africa. However, we observe additional events in Lake Tanganyika of equal magnitude that are not correlated with high-latitude changes, indicating the potential for abrupt climate change to originate from within tropical systems.},
	issn = {0094-8276},
	doi = {10.1029/2007gl029508},
	author = {Tierney, J. E. and Russell, J. M.}
}
