@article {4643,
	title = {Long-term shifts in feedbacks among glacier surface change, melt generation, and runoff, McMurdo Dry Valleys, Antarctica},
	journal = {Hydrological Processes},
	year = {2021},
	month = {07/2021},
	abstract = {<p>Glaciers of the McMurdo Dry Valleys (MDVs) Antarctica are the main source of streamflow in this polar desert. Because summer air temperatures hover near 0\&deg;C small changes in the energy balance strongly affect meltwater generation. Here we demonstrate that increased surface roughness, which alters the turbulent transfer of energy between the ice surface and atmosphere, yields a detectable increase in meltwater runoff. At low elevations on the glaciers, basin-like topography became significantly rougher over 13\&thinsp;years between repeat lidar surveys, yielding greater melt. In contrast, the smoother ice at higher elevation exhibited no detectable change in roughness. We pose a conceptual model of the cycle of glacier surface change as a result of climate forcing whereby glacier surfaces transition from being dominated by sublimation to becoming increasingly melt-dominated, which is reversible under prolonged cool periods. This research advances our understanding of warm season effects on polar glaciers.</p>},
	keywords = {LTER-MCM},
	issn = {0885-6087},
	doi = {10.1002/hyp.14292},
	url = {https://onlinelibrary.wiley.com/doi/10.1002/hyp.14292},
	author = {Bergstrom, Anna J. and Michael N. Gooseff and Andrew G Fountain and Hoffman, Matthew}
}
@article {3961,
	title = {Lake Vanda: A sentinel for climate change in the McMurdo Sound Region of Antarctica},
	journal = {Global and Planetary Change},
	volume = {144},
	year = {2016},
	month = {Jan-09-2016},
	pages = {213 - 227},
	abstract = {<p>Lake Vanda is a perennially ice-covered, meromictic, endorheic lake located in the McMurdo Dry Valleys of Antarctica, and an exceptional sentinel of climate change within the region. Lake levels rose 15 m over the past 68 years in response to climate-driven variability in ice-cover sublimation, meltwater production, and annual discharge of the Onyx River, the main source of water to the lake. Evidence from a new bathymetric map and water balance model combined with annual growth laminations in benthic mats suggest that the most recent filling trend began abruptly 80 years ago, in the early 1930s. This change increased lake volume by \&gt; 50\%, triggered the formation of a new, upper, thermohaline convection cell, and cooled the lower convection cell by at least 2 \&deg;C and the bottom-most waters by at \&gt; 4 \&deg;C. Additionally, the depth of the deep chlorophyll a maximum rose by \&gt; 2 m, and deep-growing benthic algal mats declined while shallow benthic mats colonized freshly inundated areas. We attribute changes in hydrology to regional variations in air flow related to the strength and position of the Amundsen Sea Low (ASL) pressure system which have increased the frequency of down-valley, f{\"o}hn winds associated with surface air temperature warming in the McMurdo Dry Valleys. The ASL has also been implicated in the recent warming of the Antarctic Peninsula, and provides a common link for climate-related change on opposite sides of the continent. If this trend persists, Lake Vanda should continue to rise and cool over the next 200 years until a new equilibrium lake level is achieved. Most likely, future lake rise will lead to isothermal conditions not conducive to thermohaline convection, resulting in a drastically different physical, biogeochemical, and biological structure than observed today.</p>},
	keywords = {LTER-MCM},
	issn = {09218181},
	doi = {10.1016/j.gloplacha.2016.06.007},
	url = {http://www.sciencedirect.com/science/article/pii/S092181811530014X},
	author = {Castendyk, Devin and Maciek K. Obryk and Leidman, Sasha Z. and Michael N. Gooseff and Ian Hawes}
}
@inbook {1172,
	title = {The legacy of aqueous environments on soils of the McMurdo Dry Valleys: contexts for future exploration of martian soils},
	booktitle = {Life in Antarctic Deserts and other Cold Dry Environments},
	volume = {5},
	year = {2010},
	pages = {78 - 109},
	publisher = {Cambridge University Press},
	organization = {Cambridge University Press},
	address = {Cambridge},
	keywords = {LTER-MCM},
	isbn = {9780521889193},
	doi = {10.1017/CBO9780511712258.003},
	url = {http://ebooks.cambridge.org/chapter.jsf?bid=CBO9780511712258\&cid=CBO9780511712258A010},
	author = {John E. Barrett and Poage, M and Michael N. Gooseff and Cristina D. Takacs-Vesbach}
}
@book {1173,
	title = {Life in Antarctic Deserts and Other Cold Environments},
	series = {Astrobiological Analogs},
	volume = {5},
	year = {2010},
	pages = {307},
	publisher = {Cambridge University Press.},
	organization = {Cambridge University Press.},
	address = {Cambridge},
	keywords = {LTER-MCM, Planetary Science},
	isbn = {9780511712258},
	doi = {10.1017/CBO9780511712258},
	url = {http://ebooks.cambridge.org/ebook.jsf?bid=CBO9780511712258},
	author = {Peter T. Doran and W. Berry Lyons and Diane M. McKnight},
	editor = {Diane M. McKnight and Michael N. Gooseff and Cristina D. Takacs-Vesbach and Jill A. Mikucki and Martyn Tranter and Sun, Henry J}
}
@article {1189,
	title = {Landscape Distribution of Microbial Activity in the McMurdo Dry Valleys: Linked Biotic Processes, Hydrology, and Geochemistry in a Cold Desert Ecosystem},
	journal = {Ecosystems},
	volume = {12},
	year = {2009},
	pages = {562-573},
	keywords = {LTER-MCM},
	doi = {LTER},
	author = {Lydia H. Zeglin and Sinsabaugh, R and John E. Barrett and Michael N. Gooseff and Cristina D. Takacs-Vesbach}
}
