Dana R. N. Brown
YOU?
Author Swipe
View article: Analysis of a Persistent Early Winter Open Water Zone Within the Ice‐Covered Tanana River Near Fairbanks, Alaska Using Field Studies, Remote Sensing, and Hydraulic Modeling
Analysis of a Persistent Early Winter Open Water Zone Within the Ice‐Covered Tanana River Near Fairbanks, Alaska Using Field Studies, Remote Sensing, and Hydraulic Modeling Open
Frozen rivers serve as important transportation corridors for Alaskans during winter. Open water zones (OWZs, i.e., open leads) in otherwise ice‐covered rivers present a hazard because their location and causes are poorly understood. We st…
View article: Interacting Sea‐Level Rise, Sea‐Ice Loss, Storm Flooding, Erosion, and Permafrost Thaw Threaten Ecosystems, Wildlife, and Communities on the Yukon‐Kuskokwim Delta
Interacting Sea‐Level Rise, Sea‐Ice Loss, Storm Flooding, Erosion, and Permafrost Thaw Threaten Ecosystems, Wildlife, and Communities on the Yukon‐Kuskokwim Delta Open
The Yukon‐Kuskokwim Delta has the largest intertidal wetland in North America, is a globally critical breeding area for waterbirds, and is home to the largest regional indigenous population in the Arctic. Here, coastal tundra ecosystems, w…
View article: Interplay of Topography, Fire History, and Climate on Interior Alaska Boreal Forest Vegetation Dynamics in the 21st Century: A Landsat Time-Series Analysis
Interplay of Topography, Fire History, and Climate on Interior Alaska Boreal Forest Vegetation Dynamics in the 21st Century: A Landsat Time-Series Analysis Open
This study investigates vegetation dynamics in boreal forests of Interior Alaska, focusing on topography, fire history, and climate influences. The study area includes Bonanza Creek Experimental Forest (BCEF) and surrounding region, catego…
View article: Freeze‐Up Ice Jams and Channel Hydraulics Cause Hazardous Open Water Zones Within Winter Ice Cover on the Kuskokwim and Yukon Rivers and Their Tributaries
Freeze‐Up Ice Jams and Channel Hydraulics Cause Hazardous Open Water Zones Within Winter Ice Cover on the Kuskokwim and Yukon Rivers and Their Tributaries Open
Timing and completeness of freeze‐up on northern rivers impact winter travel and indicate responses to climate change. Open‐water zones (OWZs) within ice‐covered rivers are hazardous and may be increasing in extent and persistence. To bett…
View article: A Google Earth Engine Platform to Integrate Multi-Satellite and Citizen Science Data for the Monitoring of River Ice Dynamics
A Google Earth Engine Platform to Integrate Multi-Satellite and Citizen Science Data for the Monitoring of River Ice Dynamics Open
This study introduces a new automated system that blends multi-satellite information and citizen science data for reliable and timely observations of lake and river ice in under-observed northern regions. The system leverages the Google Ea…
View article: Detecting early winter open-water zones on Alaska rivers using dual-polarized C-band Sentinel-1 synthetic aperture radar (SAR)
Detecting early winter open-water zones on Alaska rivers using dual-polarized C-band Sentinel-1 synthetic aperture radar (SAR) Open
Northern high-latitude river ice provides critical natural infrastructure for winter travel, commerce, hunting, fishing, and recreation in rural areas with little or no road access. Open water zones (OWZs) in river ice are dangerous for su…
View article: Long-term change and geospatial patterns of river ice cover and navigability in Southcentral Alaska detected with remote sensing
Long-term change and geospatial patterns of river ice cover and navigability in Southcentral Alaska detected with remote sensing Open
People who travel on ice-covered rivers to access traditional lands and resources can be profoundly impacted by effects of climate change on river ice seasonality. We used remote sensing, bolstered by citizen science, to assess trends and …
View article: Rapid and Gradual Permafrost Thaw: A Tale of Two Sites
Rapid and Gradual Permafrost Thaw: A Tale of Two Sites Open
Warming temperatures and increasing disturbance by wildfire and extreme weather events is driving permafrost change across northern latitudes. The state of permafrost varies widely in space and time, depending on landscape, climate, hydrol…
View article: Drivers of historical and projected changes in diverse boreal ecosystems: fires, thermokarst, riverine dynamics, and humans
Drivers of historical and projected changes in diverse boreal ecosystems: fires, thermokarst, riverine dynamics, and humans Open
Alaska has diverse boreal ecosystems across heterogeneous landscapes driven by a wide range of biological and geomorphic processes associated with disturbance and successional patterns under a changing climate. To assess historical pattern…
View article: Geospatial patterns and models of subsistence land use in rural Interior Alaska
Geospatial patterns and models of subsistence land use in rural Interior Alaska Open
Alaska Native people and rural Alaskans rely on subsistence harvesting of wild resources for their well-being. This study integrates publicly-available data from >30 Interior Alaskan communities to examine the geospatial patterns of subsis…
View article: Identifying increasing risks of hazards for northern land-users caused by permafrost thaw: integrating scientific and community-based research approaches
Identifying increasing risks of hazards for northern land-users caused by permafrost thaw: integrating scientific and community-based research approaches Open
Understanding the causes and consequences of environmental change is one of the key challenges facing researchers today as both types of information are required for decision making and adaptation planning. This need is particularly poigna…
View article: Observation-derived ice growth curves show patterns and trends in maximum ice thickness and safe travel duration of Alaskan lakes and rivers
Observation-derived ice growth curves show patterns and trends in maximum ice thickness and safe travel duration of Alaskan lakes and rivers Open
The formation, growth, and decay of freshwater ice on lakes and rivers are fundamental processes of northern regions with wide-ranging implications for socio-ecological systems. Ice thickness at the end of winter is perhaps the best integr…
View article: Observation-derived ice growth curves show patterns and trends in maximum ice thickness and safe travel duration of Alaskan lakes and rivers
Observation-derived ice growth curves show patterns and trends in maximum ice thickness and safe travel duration of Alaskan lakes and rivers Open
The formation, growth, and decay of freshwater ice on lakes and rivers are fundamental processes of northern regions with wide ranging implications for socio-ecological systems. Ice thickness at the end of winter is perhaps the best integr…
View article: Assessing vulnerability of subsistence travel to effects of environmental change in Interior Alaska
Assessing vulnerability of subsistence travel to effects of environmental change in Interior Alaska Open
Amplified climate warming at high northern latitudes is challenging societies that depend on local provisional and cultural ecosystem services, e.g., subsistence resources, for their livelihoods. Previous qualitative research suggests that…
View article: ABoVE: Annual Thaw Slump Expansion on East Fork Chandalar River, Alaska, 2008-2017
ABoVE: Annual Thaw Slump Expansion on East Fork Chandalar River, Alaska, 2008-2017 Open
This dataset provides a time series of spatial data showing the expansion of a thaw slump on the East Fork Chandalar River near the community of Venetie, Alaska, from 2008 through 2017. The erosion of vegetated areas along the river was do…
View article: ABoVE: River Ice Breakup and Freeze-up Stages, Yukon River Basin, Alaska, 1972-2016
ABoVE: River Ice Breakup and Freeze-up Stages, Yukon River Basin, Alaska, 1972-2016 Open
This dataset provides estimates of river ice breakup and freeze-up stages along selected reaches of the Yukon and Tanana Rivers in the Yukon River Basin in interior Alaska from 1972-2016. Time series of Landsat satellite images were visual…
View article: ABoVE: Riverbank Erosion and Vegetation Changes, Yukon River Basin, Alaska, 1984-2017
ABoVE: Riverbank Erosion and Vegetation Changes, Yukon River Basin, Alaska, 1984-2017 Open
This dataset provides a time series of riverbank erosion and vegetation colonization along reaches of the Yukon River (3 study areas), Tanana and Nenana Rivers (1 area), and Chandalar River (1 area) in interior Alaska over the period 1984-…
View article: In situ nuclear magnetic resonance response of permafrost and active layer soil in boreal and tundra ecosystems
In situ nuclear magnetic resonance response of permafrost and active layer soil in boreal and tundra ecosystems Open
Characterization of permafrost, particularly warm and near-surface permafrost which can contain significant liquid water, is critical to understanding complex interrelationships with climate change, ecosystems, and disturbances such as wil…
View article: <i>In situ</i> nuclear magnetic resonance response of permafrost andactive layer soil in boreal and tundra ecosystems
<i>In situ</i> nuclear magnetic resonance response of permafrost andactive layer soil in boreal and tundra ecosystems Open
Characterization of permafrost, particularly warm and near-surface permafrost which can contain significant liquid water, is critical to understanding complex interrelationships with climate change, ecosystems, and disturbances such as wil…
View article: Landscape Effects of Wildfire on Permafrost Distribution in Interior Alaska Derived from Remote Sensing
Landscape Effects of Wildfire on Permafrost Distribution in Interior Alaska Derived from Remote Sensing Open
Climate change coupled with an intensifying wildfire regime is becoming an important driver of permafrost loss and ecosystem change in the northern boreal forest. There is a growing need to understand the effects of fire on the spatial dis…