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Showing 1 to 20 of 23 for “"Arctic climate"”.
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Arctic house
Currently available housing in the Arctic is limited to solutions that have been adapted from designs for less severe climates. This thesis has developed a new manner of residential construction designed specifically for the Arctic climate and culture. The system invented ensures a variety of …
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Arctic Cloud, Radiation and their Interactions with Sea Ice
Over the past few decades, the Arctic has experienced dramatic changes, the most recognized being the amplified warming and substantial decline in both sea ice coverage and thickness at impressive rates. The cloud-radiation feedback is believed to be one of the critical reasons for Arctic sea ice …
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Northern Reach: Architecture of a Thawing Arctic
As our climate continues to shift, it is fundamental to understanding these unprecedented changes through field research done in biomes most critically impacted. Due to the remoteness and extreme climatic nature of these research stations, they are typically either hastily built flat pack …
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Climate and pro-glacial discharge interactions in the Pakitsoq region of Western Greenland.
Over the past two decades coincident with Arctic climate warming, Greenland’s glaciers have experienced significant volume loss with the resulting discharge substantially contributing to rising sea level. This change has occurred during a period of pronounced variability in regional climatology. …
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Far-flung influences on midlatitude weather and climate: The stratospheric pathway
… the response of the polar vortex to projected Arctic climate change, in terms of both the mean state and variability, before focusing on the impact of sudden stratospheric warmings (SSWs) on European energy demand. The “stratospheric pathway” proposed to link Arctic sea-ice loss to changes in …
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An integrated modal approach to surface and volume scattering in ocean acoustic waveguides
… Finally, earlier work on scattering from the Arctic ice sheet is extended. Simulations of long-range transmissions are compared with data from the April 1994 trans-Arctic propagation test. The results show modal attenuations and group speeds can be predicted reasonably well, indicating that …
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Characterization of the spatial and temporal variability in pan-Arctic, terrestrial hydrology
<p>Arctic hydrology represents an important component of the larger global climate system, and there are signs that significant water-cycle changes, involving complex feedbacks, have occurred. This dissertation explores the methods to estimate components of the arctic hydrological cycle, the …
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Reconstructing late Holocene Artctic climate change using high resolution sediment records from Simpson Lagoon, Alaska and the Colville River alluvial valley
Arctic nearshore environments proximal to large rivers, like Simpson Lagoon, Alaska, potentially contain high-resolution sediment archives that can be utilized to reconstruct paleoclimate variability over the late Holocene. The ongoing, rapid environmental changes recently observed in the Arctic …
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Microbiology of the sulfur-dominated glacial ecosystem at Borup Fiord Pass, and high Arctic low-temperature spring associated microbial mats, The
… located on Ellesmere Island in the Canadian High Arctic is a unique low-temperature environment. BFP is a sulfur-dominated ecosystem that occurs within the Krieger mountains. Here, a subglacial spring emergences from the toe of a coalescence glacier. The presence of high concentrations of sulfur …
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The impact of tropical sea surface temperature perturbations on atmospheric circulation over north Canada and Greenland
Identifying the drivers of Arctic climate variability is essential for understanding the recent rapid changes in local climate and determining the mechanisms that cause them. Remote tropical sea surface temperatures (SST) have been identified in previous studies as having contributed to the recent …
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Aerosols and boundary layer structure over Arctic sea ice based on airborne lidar and dropsonde measurements
The atmosphere over the Arctic Ocean is strongly influenced by the distribution of sea ice and open water. Leads in the sea ice produce strong convective fluxes of sensible and latent heat and release aerosol particles into the atmosphere. They increase the occurrence of clouds and modify the …
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Arctic daily temperature and precipitation extremes: Observed and simulated physical behavior
<p>ARCTIC DAILY TEMPERATURE AND PRECIPITATION EXTREMES: OBSERVED AND SIMULATED PHYSICAL BEHAVIOR</p> <p>Justin M. Glisan</p> <p>Department of Geological and Atmospheric Sciences, Iowa State University, Ames, Iowa</p> <p>ABSTRACT</p> <p>Simulations using a six-member ensemble of Pan-Arctic WRF (PAW) …
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Surface-Atmosphere coupling over the central Arctic Ocean
Recent and future changes to Arctic climate have the potential to impact the region's wildlife, vegetation and the local indigenous communities. In addition, changes in the Arctic impact lower latitudes through the modification of weather patterns and ocean circulation. There is a need to …
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Effect of mass wasting on soil organic carbon storage and coastal erosion in permafrost environments
Accelerated permafrost thaw under the warming Arctic climate can have a significant impact on Arctic landscapes. Areas underlain by permafrost store high amounts of soil organic carbon (SOC). Permafrost disturbances may contribute to increased release of carbon dioxide and methane to the …
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Investigating the potential of meltwater as a local source of ice nucleating particles in the central Arctic summer
Due to climate change, the Arctic has crossed a threshold into positive feedbacks between sea-ice loss and increased absorption of solar radiation, causing warming up to four times the global average. Parameterizing the Arctic radiation budget to predict the new steady-state is paramount for …
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Changes in frequency of extreme temperature and precipitation events in Alaska
… Data were analyzed seasonally for each of six climate regions. Results indicate an overall increase in frequency of extreme maximum temperature events, a decrease in frequency of extreme minimum temperature events, and an increase in frequency of extreme three-day precipitation totals. Regional …
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Arctic synoptic activity associated with sea ice variability using self-organizing maps
… synoptic activity and sea ice variability in the Arctic are studied using self-organizing maps (SOMs) to categorize observed weather patterns over the 1979-2010 period. The European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA-interim, or ERAI) provides the daily sea level …
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The modeled effects of fire on carbon balance and vegetation abundance in Alaskan tundra
Arctic climate is warming at a rate disproportionately faster than the rest of the world. Changes have been observed within the tundra that are attributed to this trend, including active layer thickening, shrubland expansion, and increases in fire frequency. Whether tundra remains a global net sink …
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A genesis potential index for polar lows
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Polar Bear (Ursus Maritimus) Foraging Ecology in the Western Canadian Arctic
Climate change has led to abrupt declines in sea ice over the past three decades. Polar bears (Ursus maritimus) rely on sea ice as their primary habitat to hunt marine mammal prey. Due to their position at the top of the Arctic marine food web, polar bear foraging patterns can provide insights on …
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