Search Results - "Ludwig, Sarah M"
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Tundra fire increases the likelihood of methane hotspot formation in the Yukon–Kuskokwim Delta, Alaska, USA
Published in Environmental research letters (01-10-2023)“…Abstract Rapid warming in Arctic tundra may lead to drier soils in summer and greater lightning ignition rates, likely culminating in enhanced wildfire risk…”
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2
Scaling waterbody carbon dioxide and methane fluxes in the arctic using an integrated terrestrial-aquatic approach
Published in Environmental research letters (01-06-2023)“…Abstract In the Arctic waterbodies are abundant and rapid thaw of permafrost is destabilizing the carbon cycle and changing hydrology. It is particularly…”
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3
Between here and there: comparing the worry about the pandemic between older Italian international migrants and natives in Switzerland
Published in Comparative migration studies (01-12-2023)“…Since the beginning of the pandemic in 2020, people have been worried about COVID-19. As one of the risk groups, persons aged 65 and older are especially…”
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4
Fire severity effects on soil carbon and nutrients and microbial processes in a Siberian larch forest
Published in Global change biology (01-12-2018)“…Fire frequency and severity are increasing in tundra and boreal regions as climate warms, which can directly affect climate feedbacks by increasing carbon (C)…”
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5
Retention and removal of nitrogen and phosphorus in saturated soils of arctic hillslopes
Published in Biogeochemistry (01-02-2016)“…Interaction of hydrologic and biogeochemical processes on hillslopes may contribute significantly to export of nutrients from soils to stream networks, yet…”
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6
Using Machine Learning to Predict Inland Aquatic CO2 and CH4 Concentrations and the Effects of Wildfires in the Yukon‐Kuskokwim Delta, Alaska
Published in Global biogeochemical cycles (01-04-2022)“…Climate change is causing an intensification in tundra fires across the Arctic, including the unprecedented 2015 fires in the Yukon‐Kuskokwim (YK) Delta. The…”
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Tundra wildfire triggers sustained lateral nutrient loss in Alaskan Arctic
Published in Global change biology (01-04-2021)“…Climate change is creating widespread ecosystem disturbance across the permafrost zone, including a rapid increase in the extent and severity of tundra…”
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8
Using radon to quantify groundwater discharge and methane fluxes to a shallow, tundra lake on the Yukon-Kuskokwim Delta, Alaska
Published in Biogeochemistry (01-03-2020)“…Northern lakes are a source of greenhouse gases to the atmosphere and contribute substantially to the global carbon budget. However, the sources of methane…”
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9
Substantial Mercury Releases and Local Deposition from Permafrost Peatland Wildfires in Southwestern Alaska
Published in Environmental science & technology (19-11-2024)“…Increasing wildfire activity at high northern latitudes has the potential to mobilize large amounts of terrestrial mercury (Hg). However, understanding…”
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10
Resolving heterogeneous fluxes from tundra halves the growing season carbon budget
Published in Biogeosciences (18-03-2024)“…Landscapes are often assumed to be homogeneous when interpreting eddy covariance fluxes, which can lead to biases when gap-filling and scaling up observations…”
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11
Impacts of increased soil burn severity on larch forest regeneration on permafrost soils of far northeastern Siberia
Published in Forest ecology and management (15-05-2018)“…•Seedbed conditions and seed availability interacted to impact larch recruitment.•If seeds were available, larch seedling density increased with soil burn…”
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12
An Observation-Based, Reduced-Form Model for Oxidation in the Remote Marine Troposphere
Published in Proceedings of the National Academy of Sciences - PNAS (22-08-2023)“…The hydroxyl radical (OH) fuels atmospheric chemical cycling as the main sink for methane and a driver of the formation and loss of many air pollutants, but…”
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13
Life in Limbo: Old-Age Transnationalism
Published in The Gerontologist (24-02-2020)“…Abstract Background and Objectives Transnationalism, defined as migrants having ties to the country of origin and the destination country, is mostly explored…”
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14
Patterns of Potential Methanogenesis Along Soil Moisture Gradients Following Drying and Rewetting in Midwestern Prairie Pothole Wetlands
Published in Wetlands (Wilmington, N.C.) (01-08-2015)“…Current models predict more intense rainstorms and extreme drought events in response to global climate change. In wetlands, greater variation in precipitation…”
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15
Hispanic Concentrated Poverty in Traditional and New Destinations, 2010-2014
Published in Population research and policy review (01-12-2017)“…This paper examines patterns of Hispanic concentrated poverty in traditional, new, and minor destinations. Using data from 2010 to 2014 from the American…”
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16
Hierarchical Scaling of Carbon Fluxes in the Arctic Using an Integrated Terrestrial, Aquatic, and Atmospheric Approach
Published 01-01-2024“…With warming temperatures, Arctic ecosystems are changing from a net sink to a net source of carbon to the atmosphere, but the Arctic’s carbon balance remains…”
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Dissertation -
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Using Machine Learning to Predict Inland Aquatic CO 2 and CH 4 Concentrations and the Effects of Wildfires in the Yukon‐Kuskokwim Delta, Alaska
Published in Global biogeochemical cycles (01-04-2022)“…Abstract Climate change is causing an intensification in tundra fires across the Arctic, including the unprecedented 2015 fires in the Yukon‐Kuskokwim (YK)…”
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Journal Article -
18
Large loss of CO 2 in winter observed across the northern permafrost region
Published in Nature climate change (01-11-2019)“…Recent warming in the Arctic, which has been amplified during the winter , greatly enhances microbial decomposition of soil organic matter and subsequent…”
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Journal Article