Kenneth M Hinkel
Dados Biográficos
| ID | 6821733 |
|---|---|
| NOME | Kenneth M Hinkel |
| PRENOMES | Kenneth M |
| SOBRENOME | Hinkel |
| ASSINATURA | HINKEL K M |
| AFILIAÇÕES | University of Cincinnati |
| ORCID | 0000-0002-1968-4479 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 15 |
| TOTAL DE CITAÇÕES | 0 |
| TOTAL COMO AUTOR | 15 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 1985 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2018 |
| ÍNDICE H | 0 |
Contrasting lake ice responses to winter climate indicate future variability and trends on the Alaskan Arctic Coastal Plain
Strong winter warming has dominated recent patterns of climate change along the Arctic Coastal Plain (ACP) of northern Alaska. The full impact of arctic winters may be best manifest by freshwater ice growth and the extent to which abundant shallow ACP lakes freeze solid with bedfast ice by the end of winter. For example, winter conditions of 2016–17 produced record low extents of bedfast ice across the ACP. In addition to high air temperatures, t…
Urban–rural contrasts in summer soil-surface temperature and active-layer thickness, Barrow, Alaska, USA
Increasing urbanization and development in the Arctic may exacerbate the local impacts of climate warming in areas underlain by permafrost. As part of the Barrow Urban Heat-Island Study (BUHIS), hourly air and near-surface soil temperatures (5 cm depth) were collected at 66 sites in and near Barrow, Alaska. Comparison of near-surface soil temperatures, categorized by land-cover type, revealed that urban temperatures in each category were higher t…
Regional lake ice meltout patterns near Barrow, Alaska
The coastal plain of Arctic Alaska contains many thousands of lakes developed in continuous permafrost, which are ice-free for only 3–4 months each year. The spatial pattern of lake ice meltout for 1870 lakes (>10 ha) in a ~9200 km2 study area near Barrow, Alaska, is analyzed using five Landsat scenes spanning a 35-year record. For each available year, a spectra-based clustering algorithm is used to differentiate water from ice during springtime …
Characteristics and Significance of the Transition Zone in Drained Thaw-Lake Basins of the Arctic Coastal Plain, Alaska
In the three-component conceptual model of arctic soils, the transition zone is recognized as a layer intermediate between the seasonally thawed active layer above and the stable permafrost below. Although typically frozen and therefore part of the near-surface permafrost, the transition zone episodically thaws over a time period ranging from sub-decadal to multicentennial. From an analysis of 138 pedons from the Arctic Coastal Plain near Barrow,…
Sikuliqiruq
Ice formation and breakup on Arctic rivers strongly influence river flow, sedimentation, river ecology, winter travel, and subsistence fishing and hunting by Alaskan Natives. We use time-series ground imagery of the Meade River to examine the process at high temporal and spatial resolution. Freezeup from complete liquid cover to complete ice cover of the Meade River at Atqasuk, Alaska in the fall of 2008 occurred in less than three days between 2…
Advancing Landscape Change Research through the Incorporation of Iñupiaq Knowledge
Indigenous knowledge is a valuable but under-used source of information relevant to landscape change research. We interviewed Iñupiat elders, hunters, and other knowledge-holders in the villages of Barrow and Atqasuk on the western Arctic Coastal Plain of northern Alaska to gain further insight into the processes governing the ubiquitous lakes and the dynamics of landscape change in this region of continuous permafrost. The interviews provided a …
Modern Erosion Rates and Loss of Coastal Features and Sites, Beaufort Sea Coastline, Alaska
This study presents modern erosion rate measurements based upon vertical aerial photography captured in 1955, 1979, and 2002 for a 100 km segment of the Beaufort Sea coastline. Annual erosion rates from 1955 to 2002 averaged 5.6 m a-1. However, mean erosion rates increased from 5.0 m a-1 in 1955–79 to 6.2 m a-1 in 1979–2002. Furthermore, from the first period to the second, erosion rates increased at 60% (598) of the 992 sites analyzed, decreased…
Nutarniq
This paper provides a summary of the current state of telecommunications for eight Arctic nations and a common vision for a Wireless Arctic Network to unite the Arctic Circumpolar Community. It presents detailed requirements based on the North
The Circumpolar Active Layer Monitoring (Calm) Workshop and the Calm Ii Program
The Summer Climate of an Arctic Coastal Village
The coastal village of Barrow, Alaska (71.3° N, 156.5° W) is the northernmost settlement in the United States. With 4000 residents, it is also the largest native community in the circumarctic region. Installation of the 67-site Barrow Urban Heat Island Study network in 2001 facilitated a detailed examination of the spatial characteristics of summer air temperature within a 150 km 2 area incorporating Barrow and its surroundings. Although the summ…
Soils of the Barrow region, Alaska
Soils have been studied near Barrow, Alaska for nearly 50 years. Since 1995 we have described, sampled, and characterized 26 pedons in the Barrow region, primarily within the Barrow Experimental Observatory, as part of a legacy soils database. The soils occur on land cover types that range from dry to wet acidic tundra. Cryoturba‐tion is the dominant process that affects most of the soils, but other processes include paludization, gleization, mel…
The circumpolar active layer monitoring (calm) program
The Circumpolar Active Layer Monitoring (CALM) program, designed to observe the response of the active layer and near‐surface permafrost to climate change, currently incorporates more than 100 sites involving 15 investigating countries in both hemispheres. In general, the active layer responds consistently to forcing by air temperature on an interannual basis. The relatively few long‐term data sets available from northern high‐latitude sites demo…
Formation of injection frost mounds over winter 1995–1996 at barrow, Alaska
A group of ice‐cored frost mounds formed during the winter of 1995–1996 near Barrow, Alaska in a drained thaw‐lake basin. Over 20 mounds, ranging from 5 to 20 m across, were observed in mid‐August 1996. Standing about 40 cm above the marsh surface, the surface vegetation was dead and the stems and roots encased within ice. Dead plant parts, released by ablation of the mound surface, provided an effective thermal insulator and preserved the featur…
Are Soil Tongues in Northeastern Indiana Periglacial Relics or Active Fingering Zones?
Soil tongues, or soil fingers, have been identified along the walls of an active gravel pit in northeastern Indiana. Locally enhanced pedogenesis, primarily carbonate leaching and clay illuviation, has resulted in wedge- and cone-shaped extensions of the B horizon into the underlying calcareous glaciofluvial sediments. Although previously described in the literature, the features at this site are considered unusual both for the numerous well-defi…
Diurnal Thermal Regime in a Peat-Covered Palsa, Toolik Lake, Alaska
Strong spatial and temporal variations in temperature and effective thermal diffusivity are apparent from short-term thermal records measured in the peat atop an ice-cored palsa in northern Alaska. Intersite differences in near-surface temperature regimes apparently result from topographic influences, vegetative cover, and site wetness. Values of effective thermal diffusivity indicate that ablation of the ice core is inhibited by advection of col…
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Diurnal Thermal Regime in a Peat-Covered Palsa, Toolik Lake, Alaska
Strong spatial and temporal variations in temperature and effective thermal diffusivity are apparent from short-term thermal records measured in the peat atop an ice-cored palsa in northern Alaska. Intersite differences in near-surface temperature regimes apparently result from topographic influences, vegetative cover, and site wetness. Values of effective thermal diffusivity indicate that ablation of the ice core is inhibited by advection of col…
Are Soil Tongues in Northeastern Indiana Periglacial Relics or Active Fingering Zones?
Soil tongues, or soil fingers, have been identified along the walls of an active gravel pit in northeastern Indiana. Locally enhanced pedogenesis, primarily carbonate leaching and clay illuviation, has resulted in wedge- and cone-shaped extensions of the B horizon into the underlying calcareous glaciofluvial sediments. Although previously described in the literature, the features at this site are considered unusual both for the numerous well-defi…
Formation of injection frost mounds over winter 1995–1996 at barrow, Alaska
A group of ice‐cored frost mounds formed during the winter of 1995–1996 near Barrow, Alaska in a drained thaw‐lake basin. Over 20 mounds, ranging from 5 to 20 m across, were observed in mid‐August 1996. Standing about 40 cm above the marsh surface, the surface vegetation was dead and the stems and roots encased within ice. Dead plant parts, released by ablation of the mound surface, provided an effective thermal insulator and preserved the featur…
The circumpolar active layer monitoring (calm) program
The Circumpolar Active Layer Monitoring (CALM) program, designed to observe the response of the active layer and near‐surface permafrost to climate change, currently incorporates more than 100 sites involving 15 investigating countries in both hemispheres. In general, the active layer responds consistently to forcing by air temperature on an interannual basis. The relatively few long‐term data sets available from northern high‐latitude sites demo…
Soils of the Barrow region, Alaska
Soils have been studied near Barrow, Alaska for nearly 50 years. Since 1995 we have described, sampled, and characterized 26 pedons in the Barrow region, primarily within the Barrow Experimental Observatory, as part of a legacy soils database. The soils occur on land cover types that range from dry to wet acidic tundra. Cryoturba‐tion is the dominant process that affects most of the soils, but other processes include paludization, gleization, mel…
The Circumpolar Active Layer Monitoring (Calm) Workshop and the Calm Ii Program
The Summer Climate of an Arctic Coastal Village
The coastal village of Barrow, Alaska (71.3° N, 156.5° W) is the northernmost settlement in the United States. With 4000 residents, it is also the largest native community in the circumarctic region. Installation of the 67-site Barrow Urban Heat Island Study network in 2001 facilitated a detailed examination of the spatial characteristics of summer air temperature within a 150 km 2 area incorporating Barrow and its surroundings. Although the summ…
Nutarniq
This paper provides a summary of the current state of telecommunications for eight Arctic nations and a common vision for a Wireless Arctic Network to unite the Arctic Circumpolar Community. It presents detailed requirements based on the North
Advancing Landscape Change Research through the Incorporation of Iñupiaq Knowledge
Indigenous knowledge is a valuable but under-used source of information relevant to landscape change research. We interviewed Iñupiat elders, hunters, and other knowledge-holders in the villages of Barrow and Atqasuk on the western Arctic Coastal Plain of northern Alaska to gain further insight into the processes governing the ubiquitous lakes and the dynamics of landscape change in this region of continuous permafrost. The interviews provided a …
Modern Erosion Rates and Loss of Coastal Features and Sites, Beaufort Sea Coastline, Alaska
This study presents modern erosion rate measurements based upon vertical aerial photography captured in 1955, 1979, and 2002 for a 100 km segment of the Beaufort Sea coastline. Annual erosion rates from 1955 to 2002 averaged 5.6 m a-1. However, mean erosion rates increased from 5.0 m a-1 in 1955–79 to 6.2 m a-1 in 1979–2002. Furthermore, from the first period to the second, erosion rates increased at 60% (598) of the 992 sites analyzed, decreased…
Characteristics and Significance of the Transition Zone in Drained Thaw-Lake Basins of the Arctic Coastal Plain, Alaska
In the three-component conceptual model of arctic soils, the transition zone is recognized as a layer intermediate between the seasonally thawed active layer above and the stable permafrost below. Although typically frozen and therefore part of the near-surface permafrost, the transition zone episodically thaws over a time period ranging from sub-decadal to multicentennial. From an analysis of 138 pedons from the Arctic Coastal Plain near Barrow,…
Sikuliqiruq
Ice formation and breakup on Arctic rivers strongly influence river flow, sedimentation, river ecology, winter travel, and subsistence fishing and hunting by Alaskan Natives. We use time-series ground imagery of the Meade River to examine the process at high temporal and spatial resolution. Freezeup from complete liquid cover to complete ice cover of the Meade River at Atqasuk, Alaska in the fall of 2008 occurred in less than three days between 2…
Urban–rural contrasts in summer soil-surface temperature and active-layer thickness, Barrow, Alaska, USA
Increasing urbanization and development in the Arctic may exacerbate the local impacts of climate warming in areas underlain by permafrost. As part of the Barrow Urban Heat-Island Study (BUHIS), hourly air and near-surface soil temperatures (5 cm depth) were collected at 66 sites in and near Barrow, Alaska. Comparison of near-surface soil temperatures, categorized by land-cover type, revealed that urban temperatures in each category were higher t…
Regional lake ice meltout patterns near Barrow, Alaska
The coastal plain of Arctic Alaska contains many thousands of lakes developed in continuous permafrost, which are ice-free for only 3–4 months each year. The spatial pattern of lake ice meltout for 1870 lakes (>10 ha) in a ~9200 km2 study area near Barrow, Alaska, is analyzed using five Landsat scenes spanning a 35-year record. For each available year, a spectra-based clustering algorithm is used to differentiate water from ice during springtime …
Contrasting lake ice responses to winter climate indicate future variability and trends on the Alaskan Arctic Coastal Plain
Strong winter warming has dominated recent patterns of climate change along the Arctic Coastal Plain (ACP) of northern Alaska. The full impact of arctic winters may be best manifest by freshwater ice growth and the extent to which abundant shallow ACP lakes freeze solid with bedfast ice by the end of winter. For example, winter conditions of 2016–17 produced record low extents of bedfast ice across the ACP. In addition to high air temperatures, t…
Geology (14 obras) · Oceanography (14 obras) · Climate change and permafrost (12 obras) · Geography (11 obras) · Arctic (9 obras) · Cryospheric studies and observations (9 obras) · Environmental Science (9 obras) · Physical geography (9 obras) · Climatology (8 obras) · Permafrost (8 obras)