@inbook {1384,
	title = {The nature and origin of decadal to millennial scale climate variability in the southern tropics of South America},
	booktitle = {Past Climate Variability from the Last Glacial Maximum to the Holocene in South America and Surrounding Regions},
	year = {2009},
	note = {id: 843},
	month = {2009},
	pages = {301-322},
	publisher = {Springer},
	organization = {Springer},
	author = {Baker, P. A. and Fritz, S. C. and Burns, S. J. and Ekdahl, E. and Rigsby, C. A.},
	editor = {Vimeux, F.}
}
@article {306,
	title = {Holocene multidecadal- to millennial-scale hydrologic variability on the South American Altiplano},
	journal = {Holocene},
	volume = {18},
	year = {2008},
	note = {id: 842; ISI Document Delivery No.: 341ZR Times Cited: 1 Cited Reference Count: 49 Ekdahl, Erik J. Fritz, Sherilyn C. Baker, Paul A. Rigsby, Catherine A. Coley, KirstinY},
	pages = {867-876},
	abstract = {Precipitation on the South American Altiplano varies at a range of temporal scales. A long-term secular increase in moisture availability from the early/mid Holocene to the present, driven by increasing summer insolation resulting from precessional changes in the Earth{\textquoteright}s orbit, has been documented in earlier studies. However, higher frequency Holocene variability is not yet understood. Here we present high-resolution diatom assemblage data from two small Altiplano lakes, Lago Lagunillas and Lago Umayo, indicating changes in effective moisture in the southern tropical Andes at decadal, centennial and millennial timescales throughout the mid to late Holocene. A strong millennial-scale component, similar in pacing to periods of increased ice-rafted debris flux in the North Atlantic, is observed in both lake records, which suggests that regional precipitation and North Atlantic climate variability are coupled at these scales. The interpretation of the higher frequency variability is hampered by the small number of high-resolution continental and marine records for comparison.},
	issn = {0959-6836},
	doi = {10.1177/0959683608093524},
	author = {Ekdahl, E. J. and Fritz, S. C. and Baker, P. A. and Rigsby, C. A. and Coley, K.}
}
@article {655,
	title = {Hydrologic variation during the last 170,000 years in the southern hemisphere tropics of South America},
	journal = {Quaternary Research},
	volume = {61},
	year = {2004},
	note = {776jhTimes Cited:98Cited References Count:43},
	month = {Jan},
	pages = {95-104},
	abstract = {Despite the hypothesized importance of the tropics in the global climate system, few tropical paleoclimatic records extend to periods earlier than the last glacial maximum (LGM), about 20,000 years before present. We present a well-dated 170,000-year time series of hydrologic variation from the southern hemisphere tropics of South America that extends from modem times through most of the penultimate glacial period. Alternating mud and salt units in a core from Salar de Uyuni, Bolivia reflect alternations between wet and dry periods. The most striking feature of the sequence is that the duration of paleolakes increased in the late Quaternary. This change may reflect increased precipitation, geomorphic or tectonic processes that affected basin hydrology, or some combination of both. The dominance of salt between 170,000 and 140,000 yr ago indicates that much of the penultimate glacial period was dry, in contrast to wet conditions in the LGM. Our analyses also suggest that the relative influence of insolation forcing on regional moisture budgets may have been stronger during the past 50,000 years than in earlier times. (C) 2003 University of Washington. All rights reserved.},
	issn = {0033-5894},
	doi = {10.1016/j.yqres.2003.08.007},
	author = {Fritz, S. C. and Baker, P. A. and Lowenstein, T. K. and Seltzer, G. O. and Rigsby, C. A. and Dwyer, G. S. and Tapia, P. M. and Arnold, K. K. and Ku, T. L. and Luo, S. D.}
}
@article {878,
	title = {Climatic significance of large lakes on the Altiplano of South America},
	journal = {EOS, Transactions, American Geophysical Union},
	volume = {82},
	year = {2001},
	note = {id: 333},
	pages = {751},
	author = {Baker, P. A. and Seltzer, G. O. and Fritz, S. C. and Rigsby, C. A. and Dwyer, G. S.}
}
@article {879,
	title = {Tropical climate changes at millennial and orbital timescales on the Bolivian Altiplano},
	journal = {Nature},
	volume = {409},
	year = {2001},
	note = {id: 388},
	pages = {167-170},
	abstract = {Tropical South America is one of the three main centres of the global, zonal overturning circulation of the equatorial atmosphere (generally termed the {\textquoteright}Walker{\textquoteright} circulation1). Although this area plays a key role in global climate cycles, little is known about South American climate history. Here we describe sediment cores and down-hole logging results of deep drilling in the Salar de Uyuni, on the Bolivian Altiplano, located in the tropical Andes. We demonstrate that during the past 50,000 years the Altiplano underwent important changes in effective moisture at both orbital (20,000-year) and millennial timescales. Long-duration wet periods, such as the Last Glacial Maximum{\textemdash}marked in the drill core by continuous deposition of lacustrine sediments{\textemdash}appear to have occurred in phase with summer insolation maxima produced by the Earth{\textquoteright}s precessional cycle. Short-duration, millennial events correlate well with North Atlantic cold events, including Heinrich events 1 and 2, as well as the Younger Dryas episode. At both millennial and orbital timescales, cold sea surface temperatures in the high-latitude North Atlantic were coeval with wet conditions in tropical South America, suggesting a common forcing.},
	doi = {10.1038/35055524},
	author = {Baker, P. A. and Rigsby, C. A. and Seltzer, G. O. and Fritz, S. C. and Lowenstein, T. K. and Bacher, N. P. and Veliz, C.}
}
@article {1011,
	title = {Climate and lake-level history of the northern Altiplano Bolivia, as recorded in Holocene sediments of the Rio Desaguadero},
	journal = {Journal of Sedimentary Research},
	volume = {69},
	year = {1999},
	note = {A197atTimes Cited:30Cited References Count:61},
	month = {May},
	pages = {597-611},
	abstract = {Strata exposed in terraces and modern cutbanks along the Rio Desaguadero contain a variety of lithofacies that were deposited in four distinct facies associations. These facies associations document a history of aggradation and downcutting that is Linked to Holocene climate change on the Altiplano.Braided stream, meandering stream, deltaic and shoreline, and la custrine sediments preserved in multi-level terraces in the northern Rio Desaguadero valley record two high-water intervals: one between 4500 and 3900 yr BP and another between 2000 and 2200 yr BP. These wet periods were interrupted by three periods of fluvial downcutting, centered at approximately 4000 yr BP, 3600 Sr BP, and after 2000 yr BP. Braided-river sediments preserved in a single terrace level in the southern Rio Desaguadero valley record a history of nearly continuous fluvial sedimentation from at least 7000 yr BP until approximately 3200 yr BP that was followed by a single episode (post-3210 ST BP) of down cutting and lateral migration.The deposition and subsequent fluvial downcutting of the northern strata was controlled by changes in effective moisture that can he correlated to Holocene water level fluctuations of Lake Titicaca, The deposition and dissection of braided-stream sediments to the south are more likely controlled by a combination of base-level change and sediment input from the Rio Mauri.},
	issn = {1073-130x},
	doi = {10.2110/jsr.69.597},
	author = {Baucom, P. C. and Rigsby, C. A.}
}
@article {943,
	title = {Paleosol evidence of anthropogenic impact on late Holocene landscape instability around an Anasazi site in Kane County, Utah},
	journal = {Abstracts with Programs - Geological Society of America},
	volume = {27},
	year = {1995},
	note = {id: 1271},
	pages = {416},
	author = {Kulp, T. R. and Rigsby, C. A.}
}
