55 record(s) found with the tag "paleoclimatology" (multi-year projects are grouped):
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Biological responses to multiple environmental stressors in lakes around Yellowknife, NT
Principal Investigator: Smol, John P
Licensed Year(s): 2019
Summary: The main goal is to understand the spatial distribution of phytoplankton and zooplankton species in lakes around the Yellowknife area and provide environmental context to the ongoing paleolimnological (reconstructing the environmental histories of lakes) investigations. This year, the research team aim to collect phytoplankton and zooplankton from a suite of lakes around Yellowknife following ...

Pliocene landscape and paleoclimate change on Prince Patrick Island
Principal Investigator: Gosse, John C
Licensed Year(s): 2017 2016
Summary: The objectives of this research are to: 1) collect pieces of wood to measure tree rings and carbon and oxygen isotopes to determine past climate (mainly average summer temperature); 2) collect sand samples to date the layers which contain the wood and evidence of faulting, so the team can date they can be dated to show how old the wood and faults may be; 3) map the faults and tilting of the ...

Arctic Peatland Carbon and Holocene Warm Climates
Principal Investigator: Beilman, David W
Licensed Year(s): 2013
Summary: The research team seek to understand carbon dynamics during warm climate intervals in the Arctic: the Holocene Thermal Maximum (HTM) the warmest pre-industrial interval ranging in timing from 10 ka (thousands of years before present) with maximum seasonality to 6 ka with reduced seasonality, and the Medieval Climate Anomaly (MCA) at ~1 ka with similar seasonality as today. By studying peat cores f...

Testing the northern route for Younger Dryas meltwater
Principal Investigator: Keigwin, Lloyd D
Licensed Year(s): 2013
Summary: Here is the project summary from the (U.S.) National Science Foundation proposal that led to this expedition: The research team propose a three-year project to investigate the origin of the Younger Dryas cooling that began about 13,000 years ago. For decades this cold event has been associated with sea ice in the Arctic and North Atlantic Oceans, and the storage and release of fresh water from ...

Seawater and depositional variations across the Slave craton: insight from banded iron formation and associated rocks
Principal Investigator: Haugaard, Rasmus RH
Licensed Year(s): 2013 2012
Summary: In the previous year, research work were started on some of the new occurrences of 2.9 - 2.6 Ga old banded iron formations in the NWT. This opened an exceptional opportunity to study ocean chemistry directly preceding the Great Oxidization Event (GOE). In this regard, the research group has been engaged with the Northwest Territories Geoscience Office (NTGO) to undertake field and laboratory studi...

Paleoclimatological assessment of the central Northwest Territories: implications for the long-term viability of the Tibbitt to Contwoyto winter ice road
Principal Investigator: Patterson, R. Tim
Licensed Year(s): 2012 2011 2010
Summary: Through analysis of sediment/water interface samples, freeze cores, and dendrochronology the researchers intend to: i) develop a comprehensive climatic history along a 2° latitudinal gradient in the central NT, variously based on an analysis of freeze cores from lakes along the route of the Tibbitt to Contwoyto Winter Road (TCWR); ii) determine the relationship between modern lake catchments an...

Long-term ecological and geomorphological investigations in the alpine tundra of the Mackenzie Mountains, NWT
Principal Investigator: Kershaw, G. Peter
Licensed Year(s): 2018 2017 2016 2015 2014 2012 2010 2009 2008 2007 2006 2005 2004 2003
Summary: The objectives of this research are: 1) to determine the status of permafrost landforms. Since 1990, automated microclimate stations powered by solar cells have been operated in the study area. One station is located at each of five permafrost landforms called palsas (low peat covered mounds with permafrost cores). The stations keep a record of permafrost and near-surface temperatures. Depth of...

Environmental Change in the Western Canadian Arctic Islands
Principal Investigator: England, John H
Licensed Year(s): 2012 2010 2009 2008 2007 2006 2005 2004 2003 2002
Summary: This licence is being issued for the scientific research application No.1284. The aim is to understand and reconstruct the extent and dynamics of past glaciers, past climates and ongoing sea level change, including submergence, on Banks Island, through geological mapping and the dating of sea shells, sediment and boulders. The objective is to determine how the environment of Banks Island has ev...

Quaternary History of the Summer Island area, Tuktoyaktuk Coastlands
Principal Investigator: Murton, Julian B
Licensed Year(s): 2008
Summary: The objective this geological research is to reconstruct climate and environmental history of Richards Island before the last ice age using sediment and peat samples. Fieldwork around the Mason Bay camp will be carried out on foot and a small boat along the coastal bluffs in Summer Island, Richards Island and Hadwen Island. Fieldwork will be carried out by clearing slumped sand from coastal bluff...

Postglacial Paleoclimatology of the central and western Arctic Islands
Principal Investigator: Gajewski, Konrad
Licensed Year(s): 2008 2004 2001 1994 1993 1992 1991 1990
Summary: The goal of this study is to collect lake sediment cores from shallow lakes to quantify the impact of past climate change on the vegetation and lakes of the area. Sediment cores from the bottom of 2 lakes in the region will be collected. A 10 day camp of 3 people will be set up at 71°43'12"N, 122°02'31"W. Transportation will be by Twin Otter to the camp, and by walking to the lakes. No gas powe...