Christina Hupy - Academia.edu (original) (raw)
Papers by Christina Hupy
Raw data for the Hicks Lake pollen dataset obtained from the Neotoma Paleoecological Database.
Raw data for the Morrison Lake pollen dataset obtained from the Neotoma Paleoecology Database.
Raw data for the Cowden Lake pollen dataset obtained from the Neotoma Paleoecology Database.
The OSGeo United Nations (UN) Committee promotes the development and use of open source software ... more The OSGeo United Nations (UN) Committee promotes the development and use of open source software that meets UN needs and supports the aims of the UN. Following a meeting between the OSGeo Board of Directors and the UN GIS team at the FOSS4G conference in Seoul, Korea, in September 2015, the Committee has mainly worked on the UN Open GIS Initiative, a project "... to identify and develop an Open Source GIS bundle that meets the requirements of UN operations, taking full advantage of the expertise of mission partners including partner nations, technology contributing countries, international organisations, academia, NGOs, private sector". In 2018, the OSGeo UN Committee called for proposals for developing open geospatial educational materials as a part of its activities. There were three challenges: the first two (one of them sponsored by Boundless) are related to the UN Open GIS Initiative. The first challenge, related to UN Open GIS - Spiral 1, aims at the development of e...
Abstract: Many important geomorphic and ecological attributes center on soil water content, espec... more Abstract: Many important geomorphic and ecological attributes center on soil water content, especially over long timescales. In this paper we present an ordinally based index, intended to generally reflect the amount of water that a soil supplies to plants under natural conditions, over long timescales. The Natural Soil Drainage Index (DI) ranges from 0 for the driest soils (e.g., those shallow to bedrock in a desert) to 99 (open water). The DI is primarily derived from a soil’s taxonomic subgroup classification, which is a reflection of its long-term wetness. Because the DI assumes that soils in drier climates and with deeper water tables have less plant-useable water, taxonomic indicators such as soil moisture regime and natural drainage class figure prominently in the “base ” DI formulation. Additional factors that can impact soil water content, quality, and/or availability (e.g., texture), when also reflected in taxonomy, are quantified and added to or subtracted from the base D...
Historical literature written about logging activity in Lower Michigan and the Great Lakes region... more Historical literature written about logging activity in Lower Michigan and the Great Lakes region between 1800-1950 is analyzed within two political ecology frameworks, Yapa’s ‘nexus of relations’ and Blaikie’s ‘chain of explanation.’ The dominant character of each of the factors composing the nexus of relations; social, cultural, economic, academic, ecological, technical, and political, during the period from 1800-1950, were identified and placed within the chains of explanation. Four distinct time periods were delineated based on the character of each of these factors encompassing settlement of the region; the establishment and beginning of the logging era; the intense exploitation of the forests; and the downfall of the logging industry. By interpreting the changes in each factor over time, linkages were drawn between the factors and landscape degradation that occurred as a result of logging activity. Through this research we found that intense modification of the Great Lakes for...
Glacial landforms in Barron County, Wisconsin, are a result of at least four glacial advances dur... more Glacial landforms in Barron County, Wisconsin, are a result of at least four glacial advances during the Pleistocene Epoch (2.58 to 0.012 Ma) (Johnson, 1986; Syverson and others, 2011). During the early Chippewa and Emerald Phases (Late Wisconsin Glaciation, 31-17 ka), till of the Pokegama Creek and Poskin Members of the Copper Falls Fm. were deposited over till of the River Falls Fm. (Illinoian Glaciation, >130 ka). These tills are all reddish-brown, sandy, and lithologically indistinguishable. Johnson (1986) was unable to map the location of the Emerald Phase ice margin using glacial geomorphology because these till surfaces do not display obvious glacial landforms in the field. Johnson used Late Wisconsin lake sediment in the northwestflowing Fourmile Creek valley as evidence for the Emerald Phase ice-margin position (Fig. 1). In addition, Fourmile Creek makes a 90-degree bend, and Johnson (1986) attributed this to flow along the Emerald Phase ice margin. LiDAR data obtained f...
Color poster with text and maps describing research conducted by Eugene Boyd and Amy Wichlacz, ad... more Color poster with text and maps describing research conducted by Eugene Boyd and Amy Wichlacz, advised by Christina Hupy and Paul Kaldjian.
Proceedings of the 22st Annual Conference on Information Technology Education
Physical Geography, 2012
This paper presents a novel method for detecting and mapping movements of ecotone boundaries, ove... more This paper presents a novel method for detecting and mapping movements of ecotone boundaries, over both time and space, using existing fossil pollen data. The method combines existing statistical techniques, including discriminant analysis and spatial interpolation, to generate statistically robust maps of ecotone boundaries over time. This method was applied to provide a comprehensive vegetative history of the forest tension zone in the Lower Peninsula of Michigan during the last 10,000 years. Pollen data for nine lakes in the Lower Peninsula were analyzed with discriminant analysis and spatially interpolated with inverse distance weighted to track ecotone movements of the forest tension zone. The forest tension zone has been in existence over the last 10,000 years and has been highly variable over space and time, with at least three major latitudinal shifts, spanning 320 km and 6° of latitude, as well as several less pronounced shifts. These shifts occurred primarily in response to millennial-scale oscillations in climate such as the warmer and dryer conditions associated with the mid-Holocene. A slighter shift was evident in association with the cooler and drier conditions of the Little Ice Age (600-100 cal yr BP). This research demonstrates the sensitivity of Great Lakes forest communities to Holocene climate change and suggests a similar sensitivity of future ecotone dynamics in response to modern global warming.
Historical literature written about logging activity in Lower Michigan and the Great Lakes region... more Historical literature written about logging activity in Lower Michigan and the Great Lakes region between 1800-1950 is analyzed within two political ecology frameworks, Yapa's 'nexus of relations' and Blaikie's 'chain of explanation.' The dominant character of each of the factors composing the nexus of relations; social, cultural, economic, academic, ecological, technical, and political, during the period from 1800-1950, were identified and placed within the chains of explanation. Four distinct time periods were delineated based on the character of each of these factors encompassing settlement of the region; the establishment and beginning of the logging era; the intense exploitation of the forests; and the downfall of the logging industry. By interpreting the changes in each factor over time, linkages were drawn between the factors and landscape degradation that occurred as a result of logging activity. Through this research we found that intense modif...
Journal of arid environments, 2004
... One set of six plots were at the base of Summerford Mountain on the Chihuahuan Desert Rangela... more ... One set of six plots were at the base of Summerford Mountain on the Chihuahuan Desert Rangeland Research Center. These plots were all on the upper alluvial fan surface at the immediate base of Summerford Mountain. ... Summerford site (Fig. ...
Ecological variables are inherently spatial with arrangement on the landscape often directly attr... more Ecological variables are inherently spatial with arrangement on the landscape often directly attributed to underlying processes. Historically, assumptions regarding the relationships among scale, pattern, and process have been used to characterize landscapes as well as compare multiple landscapes or changes in landscapes over time. Despite the utility of landscape comparisons, they often fail to adequately link scale, pattern, or process,
Raw data for the Hicks Lake pollen dataset obtained from the Neotoma Paleoecological Database.
Raw data for the Morrison Lake pollen dataset obtained from the Neotoma Paleoecology Database.
Raw data for the Cowden Lake pollen dataset obtained from the Neotoma Paleoecology Database.
The OSGeo United Nations (UN) Committee promotes the development and use of open source software ... more The OSGeo United Nations (UN) Committee promotes the development and use of open source software that meets UN needs and supports the aims of the UN. Following a meeting between the OSGeo Board of Directors and the UN GIS team at the FOSS4G conference in Seoul, Korea, in September 2015, the Committee has mainly worked on the UN Open GIS Initiative, a project "... to identify and develop an Open Source GIS bundle that meets the requirements of UN operations, taking full advantage of the expertise of mission partners including partner nations, technology contributing countries, international organisations, academia, NGOs, private sector". In 2018, the OSGeo UN Committee called for proposals for developing open geospatial educational materials as a part of its activities. There were three challenges: the first two (one of them sponsored by Boundless) are related to the UN Open GIS Initiative. The first challenge, related to UN Open GIS - Spiral 1, aims at the development of e...
Abstract: Many important geomorphic and ecological attributes center on soil water content, espec... more Abstract: Many important geomorphic and ecological attributes center on soil water content, especially over long timescales. In this paper we present an ordinally based index, intended to generally reflect the amount of water that a soil supplies to plants under natural conditions, over long timescales. The Natural Soil Drainage Index (DI) ranges from 0 for the driest soils (e.g., those shallow to bedrock in a desert) to 99 (open water). The DI is primarily derived from a soil’s taxonomic subgroup classification, which is a reflection of its long-term wetness. Because the DI assumes that soils in drier climates and with deeper water tables have less plant-useable water, taxonomic indicators such as soil moisture regime and natural drainage class figure prominently in the “base ” DI formulation. Additional factors that can impact soil water content, quality, and/or availability (e.g., texture), when also reflected in taxonomy, are quantified and added to or subtracted from the base D...
Historical literature written about logging activity in Lower Michigan and the Great Lakes region... more Historical literature written about logging activity in Lower Michigan and the Great Lakes region between 1800-1950 is analyzed within two political ecology frameworks, Yapa’s ‘nexus of relations’ and Blaikie’s ‘chain of explanation.’ The dominant character of each of the factors composing the nexus of relations; social, cultural, economic, academic, ecological, technical, and political, during the period from 1800-1950, were identified and placed within the chains of explanation. Four distinct time periods were delineated based on the character of each of these factors encompassing settlement of the region; the establishment and beginning of the logging era; the intense exploitation of the forests; and the downfall of the logging industry. By interpreting the changes in each factor over time, linkages were drawn between the factors and landscape degradation that occurred as a result of logging activity. Through this research we found that intense modification of the Great Lakes for...
Glacial landforms in Barron County, Wisconsin, are a result of at least four glacial advances dur... more Glacial landforms in Barron County, Wisconsin, are a result of at least four glacial advances during the Pleistocene Epoch (2.58 to 0.012 Ma) (Johnson, 1986; Syverson and others, 2011). During the early Chippewa and Emerald Phases (Late Wisconsin Glaciation, 31-17 ka), till of the Pokegama Creek and Poskin Members of the Copper Falls Fm. were deposited over till of the River Falls Fm. (Illinoian Glaciation, >130 ka). These tills are all reddish-brown, sandy, and lithologically indistinguishable. Johnson (1986) was unable to map the location of the Emerald Phase ice margin using glacial geomorphology because these till surfaces do not display obvious glacial landforms in the field. Johnson used Late Wisconsin lake sediment in the northwestflowing Fourmile Creek valley as evidence for the Emerald Phase ice-margin position (Fig. 1). In addition, Fourmile Creek makes a 90-degree bend, and Johnson (1986) attributed this to flow along the Emerald Phase ice margin. LiDAR data obtained f...
Color poster with text and maps describing research conducted by Eugene Boyd and Amy Wichlacz, ad... more Color poster with text and maps describing research conducted by Eugene Boyd and Amy Wichlacz, advised by Christina Hupy and Paul Kaldjian.
Proceedings of the 22st Annual Conference on Information Technology Education
Physical Geography, 2012
This paper presents a novel method for detecting and mapping movements of ecotone boundaries, ove... more This paper presents a novel method for detecting and mapping movements of ecotone boundaries, over both time and space, using existing fossil pollen data. The method combines existing statistical techniques, including discriminant analysis and spatial interpolation, to generate statistically robust maps of ecotone boundaries over time. This method was applied to provide a comprehensive vegetative history of the forest tension zone in the Lower Peninsula of Michigan during the last 10,000 years. Pollen data for nine lakes in the Lower Peninsula were analyzed with discriminant analysis and spatially interpolated with inverse distance weighted to track ecotone movements of the forest tension zone. The forest tension zone has been in existence over the last 10,000 years and has been highly variable over space and time, with at least three major latitudinal shifts, spanning 320 km and 6° of latitude, as well as several less pronounced shifts. These shifts occurred primarily in response to millennial-scale oscillations in climate such as the warmer and dryer conditions associated with the mid-Holocene. A slighter shift was evident in association with the cooler and drier conditions of the Little Ice Age (600-100 cal yr BP). This research demonstrates the sensitivity of Great Lakes forest communities to Holocene climate change and suggests a similar sensitivity of future ecotone dynamics in response to modern global warming.
Historical literature written about logging activity in Lower Michigan and the Great Lakes region... more Historical literature written about logging activity in Lower Michigan and the Great Lakes region between 1800-1950 is analyzed within two political ecology frameworks, Yapa's 'nexus of relations' and Blaikie's 'chain of explanation.' The dominant character of each of the factors composing the nexus of relations; social, cultural, economic, academic, ecological, technical, and political, during the period from 1800-1950, were identified and placed within the chains of explanation. Four distinct time periods were delineated based on the character of each of these factors encompassing settlement of the region; the establishment and beginning of the logging era; the intense exploitation of the forests; and the downfall of the logging industry. By interpreting the changes in each factor over time, linkages were drawn between the factors and landscape degradation that occurred as a result of logging activity. Through this research we found that intense modif...
Journal of arid environments, 2004
... One set of six plots were at the base of Summerford Mountain on the Chihuahuan Desert Rangela... more ... One set of six plots were at the base of Summerford Mountain on the Chihuahuan Desert Rangeland Research Center. These plots were all on the upper alluvial fan surface at the immediate base of Summerford Mountain. ... Summerford site (Fig. ...
Ecological variables are inherently spatial with arrangement on the landscape often directly attr... more Ecological variables are inherently spatial with arrangement on the landscape often directly attributed to underlying processes. Historically, assumptions regarding the relationships among scale, pattern, and process have been used to characterize landscapes as well as compare multiple landscapes or changes in landscapes over time. Despite the utility of landscape comparisons, they often fail to adequately link scale, pattern, or process,