@article {2781,
	title = {Resolving sea ice dynamics in the north-western Ross Sea during the last 2.6 ka: From seasonal to millennial timescales},
	journal = {Quaternary Science Reviews},
	volume = {237},
	year = {2020},
	month = {Jan-06-2020},
	pages = {106299},
	abstract = {Time-series analyses of satellite images reveal that sea ice extent in the Ross Sea has experienced significant changes over the last 40 years, likely triggered by large-scale atmospheric anomalies. However, resolving how sea ice in the Ross Sea has changed over longer timeframes has until now remained more elusive. Here we used a laminated sediment piston core (14.6 m) collected from the Edisto inlet (Western Ross Sea) to reconstruct fast ice dynamics over the last 2.6 ka. Our goal was to first understand the climate expression of selected well-defined sediment laminae and then use these characteristics for reconstructing past sea ice behaviour across the whole sedimentary sequence. We used the recently established sea ice diatom biomarker proxy IPSO25 in combination with diatom census counts and bulk analyses. Analyses performed on a suite of discrete laminae revealed statistically significant differences between dark and light laminae reflecting different depositional conditions. Based on their respective biogeochemical fingerprints, we infer that dark laminae accumulated during sea ice thaws in early summer. Under these conditions, laminae contain relatively high concentrations of IPSO25 and display an enriched δ13C composition for the bulk organic matter (OM). While diatom assemblages in dark laminae are relatively homogenous, as the thaw continues later in the summer, Corethron pennatum becomes the dominant diatom species, resulting in the formation of light laminae characterized by low IPSO25 concentrations. Since C. pennatum can migrate vertically through the water column to uptake nutrients and avoid competition in oligotrophic waters, its high concentration likely reflects stratified and ice-free surface waters typical of late summer.

Down-core trends show that the correlation between sediment brightness and geochemical fingerprint (i.e., IPSO25 and δ13C) holds throughout the record. Based on the knowledge gained at lamina level, our down-core high-resolution reconstruction shows that the summer fast ice coverage changed dramatically during the late Holocene. Specifically, we conclude that the Edisto inlet experienced regular early summer opening between 2.6 ka, and ca. 0.7 ka, after which, coastal fast ice persisted during summer months and ice-free conditions became less frequent. Comparison with previous regional ice core data suggests that the sudden cooling recorded over the Victoria Land Coast region since 0.7 ka might potentially explain our observation of persistent summer fast ice in the Western Ross Sea. Our study has shown that multi-proxy data derived from laminated sediments can provide hitherto unknown detail regarding past summer sea ice dynamics in coastal Antarctic regions.},
	keywords = {Fast ice, IPSO25, Laminated sediments, Ross Sea, Sea ice},
	issn = {02773791},
	doi = {10.1016/j.quascirev.2020.106299},
	url = {https://linkinghub.elsevier.com/retrieve/pii/S0277379120302614},
	author = {Tesi, T. and Belt, S.T. and Gariboldi, K. and Muschitiello, F. and Smik, L. and Finocchiaro, F. and Giglio, F. and Colizza, E. and Gazzurra, G. and Giordano, P. and Morigi, C. and Capotondi, L. and Nogarotto, A. and K{\"o}seo{\u g}lu, D. and Di Roberto, A. and Gallerani, A. and Langone, L.}
}
@article {937,
	title = {Late-Quaternary cold events recorded in the Southern Ocean sediments, Pacific Sector},
	journal = {Terra Antartica},
	volume = {9},
	year = {2003},
	note = {id: 1000},
	pages = {100-105},
	author = {Langone, L. and Capotondi, L. and Giglio, F. and Focaccia, P. and C, Morigi and Ravaioli, M.}
}
@article {2072,
	title = {Paleoenvironmental inferences from core Anta95-1 (Granite Harobr, Sw Ross Sea-Antarctica)},
	journal = {Terra Antarctica reports},
	volume = {8},
	year = {2003},
	note = {id: 1001},
	month = {2003},
	pages = {133-138},
	author = {Orsini, G. and Giglio, F. and Langone, L. and Ravaioli, M.}
}
@article {644,
	title = {A possible record of the Younger Dryas event in deep-sea sediments of the Southern Ocean (Pacific sector)},
	journal = {Palaeogeography Palaeoclimatology Palaeoecology},
	volume = {198},
	year = {2003},
	note = {723feTimes Cited:15Cited References Count:55},
	month = {Sep 15},
	pages = {265-278},
	abstract = {The oxygen isotope record combined with radiocarbon dating from two deep-sea cores collected along a transect between New Zealand and the Ross Sea are used to establish a reliable chronostratigraphy for the last 14 kyr. After an integrated geochemical and micropaleontological analysis in this timeframe we detected a cooling interval dated between 12.5 cal kyr BP and 11.4 cal kyr BP. The age control suggests that this event started 1.5 kyr after the onset of the Antarctic Cold Reversal previously observed in several Antarctic ice cores. We infer that the observed cool event corresponds to the Younger Dryas event defined in Northern Europe. This suggests that climate change recorded in this sector of the Southern Hemisphere still shows some synchronicity with Northern Hemisphere variations and that the decoupling of climate change between the two hemispheres likely occurred south of the Polar Front. (C) 2003 Elsevier B.V. All rights reserved.},
	issn = {0031-0182},
	doi = {10.1016/S0031-0182(03)00404-8},
	author = {Morigi, C. and Capotondi, L. and Giglio, F. and Langone, L. and Brilli, M. and Turi, B. and Ravaioli, M.}
}
@article {2080,
	title = {Sediment characteristics at selected sites of the Ross Sea continental shelf: does the sedimentary record reflect water column fluxes?},
	journal = {Antarctic Science},
	volume = {15},
	year = {2003},
	note = {id: 440},
	month = {2003},
	pages = {133-139},
	author = {Frignani, M. and Giglio, F. and Accornero, A. and Langone, L. and Ravaioli, M.}
}
@conference {1578,
	title = {Biogenic silica and organic carbon in sediments from the Pacific Sector of the Southern Ocean},
	booktitle = {Antarctic Earth Sciences at the close of a Millenium: Proceedings 8th International Symposium on Artarctic Earth Sciences},
	volume = {8th},
	year = {2001},
	note = {id: 284},
	month = {2001},
	pages = {35},
	publisher = {Royal Society of New Zealand Bulletin},
	organization = {Royal Society of New Zealand Bulletin},
	author = {Giglio, F. and Langone, L. and Morigi, C. and Frignani, M. and Ravaioli, M.},
	editor = {Gamble, J. A.}
}
@conference {1717,
	title = {Oceanic changes in the southern Pacific Ocean during the last deglaciation time, as recorded by planktic foraminifers and oxigen isotopes. --Extended abstract},
	booktitle = {ANTOSTRAT Symposium on "The geologic record of the Antarctic ice sheet from drilling, coring and seismic studies"},
	year = {2001},
	note = {id: 1428},
	month = {2001},
	pages = {137},
	address = {Erice, Italy},
	author = {Morigi, C. and Capotondi, L. and Giglio, F. and Langone, L. and Brilli, M. and Turi, B. and Ravaioli, M.}
}
@conference {1733,
	title = {Paleoceanographic changes in the Southern Ocean, during the last deglaciation time, as recorded by planktic foraminifers and oxygen isotopes--Poster},
	booktitle = {ANTOSTRAT Symposium on "The geologic record of the Antarctic ice sheet from drilling, coring and seismic studies"--Poster},
	year = {2001},
	note = {id: 1424},
	month = {2001},
	pages = {137},
	address = {Erice, Italy},
	author = {Morigi, C. and Capotondi, L. and Giglio, F. and Langone, L. and Turi, B. and Brilli, M. and Ravaioli, M.}
}
@conference {1746,
	title = {Possible record of the yunger dryas event in sediments of the southern ocean (Pacific sector)--abstract},
	booktitle = {AUG},
	year = {2001},
	note = {id: 1427},
	month = {2001},
	address = {Nice, France},
	author = {Morigi, C. and Capotondi, L. and Langone, L. and Giglio, F. and Ravaioli, M.}
}
@conference {1747,
	title = {Possible record of the yunger dryas event in sediments of the Southern Ocean (Pacific Sector)--Poster},
	booktitle = {AUG},
	year = {2001},
	note = {id: 1423},
	month = {2001},
	address = {Nice},
	author = {Morigi, C. and Capotondi, L. and Langone, L. and Giglio, F. and Ravaioli, M.}
}
@conference {1639,
	title = {Glacial-Interglacial variations in the accumulation rates of major biogenic components in the Southern Pacific Ocean sediments--Abstract},
	booktitle = {Third International SO-JGOFS Symposium},
	year = {2000},
	note = {id: 287},
	month = {2000},
	address = {Brest},
	author = {Giglio, F. and Langone, L. and Ravaioli, M. and Frignani, M. and Mangini, A. and Fonti, P.}
}
@conference {1674,
	title = {Late Quaternary sedimentary fluctuations of biogenic fluxes driven by climatic changes in the Southern Ocean--abstract},
	booktitle = {XXV General Assembly of European Geophysical Society},
	year = {2000},
	note = {id: 288},
	month = {2000},
	address = {Nice, France},
	author = {Langone, L. and Giglio, F. and Ravaioli, M. and Frignani, M. and Marozzi, G. and Rovatti, G.}
}
@conference {1732,
	title = {Paleoceanographic changes in the Southern Ocean (Pacific sector) during the last 14 Ka.--Poster},
	booktitle = {Third International SO-JGOFS Symposium},
	year = {2000},
	note = {id: 1422},
	month = {2000},
	address = {Brest},
	author = {Morigi, C. and Capotondi, L. and Ravaioli, M. and Giglio, F. and Turi, B. and Brilli, M. and Langone, L.}
}
@conference {1579,
	title = {Biogenic silica and organic carbon in sediments from the Pacific sector of the Southern Ocean.--Abstract},
	booktitle = {8th International Symposium on Antarctic Earch Sciences},
	year = {1999},
	note = {id: 286},
	month = {1999},
	pages = {119},
	address = {Victoria University of Wellington, Wellington, New Zealand},
	author = {Giglio, F. and Frignani, M. and Langone, L. and Morigi, C. and Pianosi, G. and Ravaioli, M.}
}
@conference {1731,
	title = {Paleoceanographic changes in the Southern Ocean (Pacific Sector) during the last 14 ka.- -Abstract},
	booktitle = {Third International SO-JGOFS Symposium},
	year = {1999},
	note = {id: 1426},
	month = {1999},
	address = {Brest},
	author = {Morigo, C. and Capotondi, L. and Ravaioli, M. and Giglio, F. and Turi, B. and Brilli, M. and Langone, L.}
}
@conference {1742,
	title = {Planktic foraminifera and oxygen isotope as proxies for paleoceanographic reconstruction in the Southern Ocean during the last deglacial time--Abstract},
	booktitle = {Convegno Glaciologia e Paleoclima},
	year = {1999},
	note = {id: 1425},
	month = {1999},
	pages = {70-71},
	address = {Padova},
	author = {Morigi, C. and Capotondi, L. and Ravaioli, M. and Giglio, F. and Turi, B. and Brilli, M. and Frignani, M. and Langone, L.}
}
