Laura C Smith
Biographic Data
| ID | 642080 |
|---|---|
| NAME | Laura C Smith |
| GIVEN NAMES | Laura C |
| FAMILY NAME | Smith |
| SIGNATURE | SMITH L C |
| AFFILIATIONS | University of California, Los Angeles |
| ORCID | 0000-0001-6866-5904 |
| VERIFIED | Yes |
| TOTAL WORKS | 18 |
| TOTAL CITATIONS | 14 |
| WORKS AS AUTHOR | 18 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1951 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 3 |
Geospatial Analysis of Alaskan Lakes Indicates Wetland Fraction and Surface Water Area Are Useful Predictors of Methane Ebullition
Arctic-boreal lakes emit methane (CH4), a powerful greenhouse gas. Recent studies suggest ebullition might be a dominant methane emission pathway in lakes but its drivers are poorly understood. Various predictors of lake methane ebullition have been proposed but are challenging to evaluate owing to different geographical characteristics, field locations, and sample densities. Here we compare large geospatial data sets of lake area, lake perimeter…
Arctic-boreal lakes of interior Alaska dominated by contemporary carbon
Northern high-latitude lakes are critical sites for carbon processing and serve as potential conduits for the emission of permafrost-derived carbon and greenhouse gases. However, the fate and emission pathways of permafrost carbon in these systems remain uncertain. Here, we used the natural abundance of radiocarbon to identify and trace the predominant sources of methane, carbon dioxide, dissolved inorganic and organic carbon in nine lakes within…
The Powers of Rivers
Humans and rivers have shared an intimate relationship since prehistoric times. This curation uses visual representations to explore some of the many ways that humans interact with these geographical features. Through photographs, a political map, and line art, it invites the reader to consider the myriad and changing demands we impose on fluvial systems through quests for access, natural capital, territory, well-being, and power
Changes in sea ice travel conditions in Uummannaq Fjord, Greenland (1985–2019) assessed through remote sensing and transportation accessibility modeling
Shorefast sea ice provides an important platform for winter and spring travel between coastal Arctic communities unconnected by road networks. In the past two decades, local Arctic residents have reported thinning and earlier breakup of shorefast ice. Despite these assertions, however, there are few quantitative assessments of how these changes have impacted travel on sea ice. In this study, we use high-resolution satellite remote sensing and tra…
Coldest Canadian Arctic communities face greatest reductions in shorefast sea ice
Rivers as political borders
Rivers are commonly used to define political borders, but no global study has quantified the importance of rivers on territorial delimitation at subnational scales. This paper presents Global Subnational River-Borders (GSRB), a first comprehensive geospatial dataset of subnational, as well as national, political borders set by large rivers. GSRB incorporates three previous vector datasets (GAUL, GRWL + +, and WDBII) to map and quantify the use of…
Diverse supraglacial drainage patterns on the Devon ice Cap, Arctic Canada
The Devon Ice Cap (DIC) is one of the largest ice masses in the Canadian Arctic. Each summer, extensive supraglacial river networks develop on the DIC surface and route large volumes of meltwater from ice caps to the ocean. Mapping their extent and understanding their temporal evolution are important for validating runoff routing and melt volumes predicted by regional climate models (RCMs). We use 10 m Sentinel-2 images captured on 28 July and 10…
Airborne observations of arctic-boreal water surface elevations from AirSWOT Ka-Band InSAR and LVIS LiDAR
AirSWOT is an experimental airborne Ka-band radar interferometer developed by NASA-JPL as a validation instrument for the forthcoming NASA Surface Water and Ocean Topography (SWOT) satellite mission. In 2017, AirSWOT was deployed as part of the NASA Arctic Boreal Vulnerability Experiment (ABoVE) to map surface water elevations across Alaska and western Canada. The result is the most extensive known collection of near-nadir airborne Ka-band interf…
Advances in using multitemporal night-time lights satellite imagery to detect, estimate, and monitor socioeconomic dynamics
Marine accessibility along Russia's Northern Sea Route
Recent Arctic sea ice retreat indicates that the Russian coastal seas encompassing the Northern Sea Route (NSR) will be among the first marine environments to transition to a summer ice-free state. Forty-six voyages carrying 1.26 million tons of cargo in 2012 suggest increasing economic viability of the NSR for eastward transport of natural resources from northern Norway and Russia. However, considerable uncertainty remains about the near-term le…
Agents of Change in the New North
A geographer with extensive experience in the high latitudes of the Northern Hemisphere outlines 12 major agents of change currently active in that hemisphere's Northern Rim (lands and seas poleward of 45° N Lat.). These include population trajectories, aboriginal populations, rising air temperatures and precipitation, thawing of permafrost and winter roads, hydrocarbon and agricultural development, sea ice and shipping, ecosystem shifts, and iss…
Does sea ice influence Greenland ice sheet surface-melt
Recent decreases in Arctic sea ice and increases in Greenland ice sheet surface-melt may have global impacts, but the interactions between these two processes are unknown. Using microwave satellite data, we explore the spatial and temporal covariance of sea ice extent and ice sheet surface-melt around Greenland from 1979 to 2007. Significant covariance is discovered in several loci in the late summer, with the strongest covariance in western Gree…
Disappearing Arctic Lakes
Historical archived satellite images were compared with contemporary satellite data to track ongoing changes in more than 10,000 large lakes in rapidly warming Siberia. A widespread decline in lake abundance and area has occurred since 1973, despite slight precipitation increases to the region. The spatial pattern of lake disappearance suggests (i) that thaw and "breaching" of permafrost is driving the observed losses, by enabling rapid lake drai…
Life satisfaction in children and youth
A central component of positive psychology is subjective well‐being (SWB). One facet of SWB receiving increased research attention is children's perceived quality of life (PQOL). Existing research related to child and youth PQOL is reviewed, followed by a discussion of the implications of the research for school psychology practice. Research with children and adolescents reveals that PQOL has a wide ranging nomological network including personali…
A high temporal resolution data set of ERS scatterometer radar backscatter for research in Arctic and sub-Arctic regions
Radar backscatter in Arctic and sub-Arctic regions is temporally dynamic and reflects changes in sea ice, glacier facies, soil thaw state, vegetation cover, and moisture content. Wind scatterometers on the ERS-1 and ERS-2 satellites have amassed a global archive of C-band radar backscatter data since 1991. This paper derives three high temporal resolution data products from this archive that are designed to facilitate scatterometer research in hi…
Emerging Applications of Interferometric Synthetic Aperture Radar (InSAR) in Geomorphology and Hydrology
Interferometric synthetic aperture radar (InSAR) is a powerful geodetic tool used to construct digital elevation models of the earth’s topography and to image centimeter–scale displacements associated with crustal deformation and the flow of ice sheets. The past decade has seen significant improvements in our understanding of earthquakes, volcanoes, and glaciers as a direct result of this technology. Geomorphology and hydrology can also benefit f…
Rumor and gossip
(1999). Rumor and gossip: Social discourse on HIV and AIDS. Anthropology & Medicine: Vol. 6, No. 1, pp. 121-131
Slightly excessive” drinker
Rumor and gossip
(1999). Rumor and gossip: Social discourse on HIV and AIDS. Anthropology & Medicine: Vol. 6, No. 1, pp. 121-131
Emerging Applications of Interferometric Synthetic Aperture Radar (InSAR) in Geomorphology and Hydrology
Interferometric synthetic aperture radar (InSAR) is a powerful geodetic tool used to construct digital elevation models of the earth’s topography and to image centimeter–scale displacements associated with crustal deformation and the flow of ice sheets. The past decade has seen significant improvements in our understanding of earthquakes, volcanoes, and glaciers as a direct result of this technology. Geomorphology and hydrology can also benefit f…
Agents of Change in the New North
A geographer with extensive experience in the high latitudes of the Northern Hemisphere outlines 12 major agents of change currently active in that hemisphere's Northern Rim (lands and seas poleward of 45° N Lat.). These include population trajectories, aboriginal populations, rising air temperatures and precipitation, thawing of permafrost and winter roads, hydrocarbon and agricultural development, sea ice and shipping, ecosystem shifts, and iss…
The Powers of Rivers
Humans and rivers have shared an intimate relationship since prehistoric times. This curation uses visual representations to explore some of the many ways that humans interact with these geographical features. Through photographs, a political map, and line art, it invites the reader to consider the myriad and changing demands we impose on fluvial systems through quests for access, natural capital, territory, well-being, and power
Slightly excessive” drinker
Rumor and gossip
(1999). Rumor and gossip: Social discourse on HIV and AIDS. Anthropology & Medicine: Vol. 6, No. 1, pp. 121-131
A high temporal resolution data set of ERS scatterometer radar backscatter for research in Arctic and sub-Arctic regions
Radar backscatter in Arctic and sub-Arctic regions is temporally dynamic and reflects changes in sea ice, glacier facies, soil thaw state, vegetation cover, and moisture content. Wind scatterometers on the ERS-1 and ERS-2 satellites have amassed a global archive of C-band radar backscatter data since 1991. This paper derives three high temporal resolution data products from this archive that are designed to facilitate scatterometer research in hi…
Emerging Applications of Interferometric Synthetic Aperture Radar (InSAR) in Geomorphology and Hydrology
Interferometric synthetic aperture radar (InSAR) is a powerful geodetic tool used to construct digital elevation models of the earth’s topography and to image centimeter–scale displacements associated with crustal deformation and the flow of ice sheets. The past decade has seen significant improvements in our understanding of earthquakes, volcanoes, and glaciers as a direct result of this technology. Geomorphology and hydrology can also benefit f…
Life satisfaction in children and youth
A central component of positive psychology is subjective well‐being (SWB). One facet of SWB receiving increased research attention is children's perceived quality of life (PQOL). Existing research related to child and youth PQOL is reviewed, followed by a discussion of the implications of the research for school psychology practice. Research with children and adolescents reveals that PQOL has a wide ranging nomological network including personali…
Disappearing Arctic Lakes
Historical archived satellite images were compared with contemporary satellite data to track ongoing changes in more than 10,000 large lakes in rapidly warming Siberia. A widespread decline in lake abundance and area has occurred since 1973, despite slight precipitation increases to the region. The spatial pattern of lake disappearance suggests (i) that thaw and "breaching" of permafrost is driving the observed losses, by enabling rapid lake drai…
Does sea ice influence Greenland ice sheet surface-melt
Recent decreases in Arctic sea ice and increases in Greenland ice sheet surface-melt may have global impacts, but the interactions between these two processes are unknown. Using microwave satellite data, we explore the spatial and temporal covariance of sea ice extent and ice sheet surface-melt around Greenland from 1979 to 2007. Significant covariance is discovered in several loci in the late summer, with the strongest covariance in western Gree…
Agents of Change in the New North
A geographer with extensive experience in the high latitudes of the Northern Hemisphere outlines 12 major agents of change currently active in that hemisphere's Northern Rim (lands and seas poleward of 45° N Lat.). These include population trajectories, aboriginal populations, rising air temperatures and precipitation, thawing of permafrost and winter roads, hydrocarbon and agricultural development, sea ice and shipping, ecosystem shifts, and iss…
Marine accessibility along Russia's Northern Sea Route
Recent Arctic sea ice retreat indicates that the Russian coastal seas encompassing the Northern Sea Route (NSR) will be among the first marine environments to transition to a summer ice-free state. Forty-six voyages carrying 1.26 million tons of cargo in 2012 suggest increasing economic viability of the NSR for eastward transport of natural resources from northern Norway and Russia. However, considerable uncertainty remains about the near-term le…
Advances in using multitemporal night-time lights satellite imagery to detect, estimate, and monitor socioeconomic dynamics
Coldest Canadian Arctic communities face greatest reductions in shorefast sea ice
Rivers as political borders
Rivers are commonly used to define political borders, but no global study has quantified the importance of rivers on territorial delimitation at subnational scales. This paper presents Global Subnational River-Borders (GSRB), a first comprehensive geospatial dataset of subnational, as well as national, political borders set by large rivers. GSRB incorporates three previous vector datasets (GAUL, GRWL + +, and WDBII) to map and quantify the use of…
Diverse supraglacial drainage patterns on the Devon ice Cap, Arctic Canada
The Devon Ice Cap (DIC) is one of the largest ice masses in the Canadian Arctic. Each summer, extensive supraglacial river networks develop on the DIC surface and route large volumes of meltwater from ice caps to the ocean. Mapping their extent and understanding their temporal evolution are important for validating runoff routing and melt volumes predicted by regional climate models (RCMs). We use 10 m Sentinel-2 images captured on 28 July and 10…
Airborne observations of arctic-boreal water surface elevations from AirSWOT Ka-Band InSAR and LVIS LiDAR
AirSWOT is an experimental airborne Ka-band radar interferometer developed by NASA-JPL as a validation instrument for the forthcoming NASA Surface Water and Ocean Topography (SWOT) satellite mission. In 2017, AirSWOT was deployed as part of the NASA Arctic Boreal Vulnerability Experiment (ABoVE) to map surface water elevations across Alaska and western Canada. The result is the most extensive known collection of near-nadir airborne Ka-band interf…
Changes in sea ice travel conditions in Uummannaq Fjord, Greenland (1985–2019) assessed through remote sensing and transportation accessibility modeling
Shorefast sea ice provides an important platform for winter and spring travel between coastal Arctic communities unconnected by road networks. In the past two decades, local Arctic residents have reported thinning and earlier breakup of shorefast ice. Despite these assertions, however, there are few quantitative assessments of how these changes have impacted travel on sea ice. In this study, we use high-resolution satellite remote sensing and tra…
The Powers of Rivers
Humans and rivers have shared an intimate relationship since prehistoric times. This curation uses visual representations to explore some of the many ways that humans interact with these geographical features. Through photographs, a political map, and line art, it invites the reader to consider the myriad and changing demands we impose on fluvial systems through quests for access, natural capital, territory, well-being, and power
Arctic-boreal lakes of interior Alaska dominated by contemporary carbon
Northern high-latitude lakes are critical sites for carbon processing and serve as potential conduits for the emission of permafrost-derived carbon and greenhouse gases. However, the fate and emission pathways of permafrost carbon in these systems remain uncertain. Here, we used the natural abundance of radiocarbon to identify and trace the predominant sources of methane, carbon dioxide, dissolved inorganic and organic carbon in nine lakes within…
Geospatial Analysis of Alaskan Lakes Indicates Wetland Fraction and Surface Water Area Are Useful Predictors of Methane Ebullition
Arctic-boreal lakes emit methane (CH4), a powerful greenhouse gas. Recent studies suggest ebullition might be a dominant methane emission pathway in lakes but its drivers are poorly understood. Various predictors of lake methane ebullition have been proposed but are challenging to evaluate owing to different geographical characteristics, field locations, and sample densities. Here we compare large geospatial data sets of lake area, lake perimeter…
Geography (13 works) · Geology (12 works) · Climate change and permafrost (11 works) · Environmental Science (10 works) · Arctic (9 works) · Oceanography (9 works) · Arctic and Antarctic ice dynamics (8 works) · Physical geography (8 works) · Climatology (6 works) · Cryospheric studies and observations (5 works)