Dalia E Varanka, PhD (Former Employee)
Science and Products
Filter Total Items: 50
Landscape features, standards, and semantics in U.S. national topographic mapping databases Landscape features, standards, and semantics in U.S. national topographic mapping databases
The objective of this paper is to examine the contrast between local, field-surveyed topographical representation and feature representation in digital, centralized databases and to clarify their ontological implications. The semantics of these two approaches are contrasted by examining the categorization of features by subject domains inherent to national topographic mapping. When...
Authors
Dalia Varanka
A topographic feature taxonomy for a U.S. national topographic mapping ontology A topographic feature taxonomy for a U.S. national topographic mapping ontology
Using legacy feature lists from the U.S. National Topographic Mapping Program of the twentieth century, a taxonomy of features is presented for purposes of developing a national topographic feature ontology for geographic mapping and analysis. After reviewing published taxonomic classifications, six basic classes are suggested; terrain, surface water, ecological regimes, built-up areas
Authors
Dalia Varanka
A 125 year history of topographic mapping and GIS in the U.S. Geological Survey 1884-2009, part 2: 1980-2009 A 125 year history of topographic mapping and GIS in the U.S. Geological Survey 1884-2009, part 2: 1980-2009
The United States Geological Survey (USGS) entered the mainstream of developments in computer-assisted technology for mapping during the 1970s. The introduction by USGS of digital line graphs (DLGs), digital elevation models (DEMs), and land use data analysis (LUDA) nationwide land-cover data provided a base for the rapid expansion of the use of GIS in the 1980s. Whereas USGS had...
Authors
E. Usery, Dalia Varanka, Michael Finn
Land-Use Change Trends in the Interior Lowland Ecoregion Land-Use Change Trends in the Interior Lowland Ecoregion
This report describes land-cover trends in the Interior River Lowland ecoregion, located primarily in southern Illinois and includes the confluence areas of the Mississippi, Missouri, Ohio, Illinois, and Wabash Rivers, and their tributaries. Land-cover change statistics were tabulated from forty 10 kilometers (km) by 10-km multi-spectral remote-sensing sample areas collected from 1973 to...
Authors
Dalia Varanka, David Shaver
Ontological foundations of transportation data for the National Map (USA) Ontological foundations of transportation data for the National Map (USA)
No abstract available.
Authors
Dalia Varanka
The 20th-Century Topographic Survey as Source Data for Long-Term Landscape Studies at Local and Regional Scales The 20th-Century Topographic Survey as Source Data for Long-Term Landscape Studies at Local and Regional Scales
Historical topographic maps are the only systematically collected data resource covering the entire nation for long-term landscape change studies over the 20th century for geographical and environmental research. The paper discusses aspects of the historical U.S. Geological Survey topographic maps that present constraints on the design of a database for such studies. Problems involved in...
Authors
Dalia Varanka
Interpreting map art with a perspective learned from J.M. Blaut Interpreting map art with a perspective learned from J.M. Blaut
Map art has been mentioned only briefly in geographic or cartographic literature, and has been analyzed almost entirely at the interpretive level. This paper attempts to define and evaluate the cartographic value of contemporary map-like art by placing the body of work as a whole in the theoretical concepts proposed by J.M. Blaut and his colleagues about mapping as a cognitive and...
Authors
D. Varanka
The manly map: the English construction of gender in early modern cartography The manly map: the English construction of gender in early modern cartography
Questions of gender in cartography most often focus on the sex of people involved in the cartographic process. These areas of research include the history of women cartographers (Tyner 1997: 46; Ritzlin 1989: 5; Hudson 1989: 29), the cartography of issues centered on women (Seager and Olson 1986; Seager et al. 1997; Rocheleau et al. 1995: 62), and women in the cartographic labor force...
Authors
Dalia Varanka
Natural mapping and art: A student's exploratory study with J M Blaut Natural mapping and art: A student's exploratory study with J M Blaut
[No abstract available]
Authors
D. Varanka
Science and Products
Filter Total Items: 50
Landscape features, standards, and semantics in U.S. national topographic mapping databases Landscape features, standards, and semantics in U.S. national topographic mapping databases
The objective of this paper is to examine the contrast between local, field-surveyed topographical representation and feature representation in digital, centralized databases and to clarify their ontological implications. The semantics of these two approaches are contrasted by examining the categorization of features by subject domains inherent to national topographic mapping. When...
Authors
Dalia Varanka
A topographic feature taxonomy for a U.S. national topographic mapping ontology A topographic feature taxonomy for a U.S. national topographic mapping ontology
Using legacy feature lists from the U.S. National Topographic Mapping Program of the twentieth century, a taxonomy of features is presented for purposes of developing a national topographic feature ontology for geographic mapping and analysis. After reviewing published taxonomic classifications, six basic classes are suggested; terrain, surface water, ecological regimes, built-up areas
Authors
Dalia Varanka
A 125 year history of topographic mapping and GIS in the U.S. Geological Survey 1884-2009, part 2: 1980-2009 A 125 year history of topographic mapping and GIS in the U.S. Geological Survey 1884-2009, part 2: 1980-2009
The United States Geological Survey (USGS) entered the mainstream of developments in computer-assisted technology for mapping during the 1970s. The introduction by USGS of digital line graphs (DLGs), digital elevation models (DEMs), and land use data analysis (LUDA) nationwide land-cover data provided a base for the rapid expansion of the use of GIS in the 1980s. Whereas USGS had...
Authors
E. Usery, Dalia Varanka, Michael Finn
Land-Use Change Trends in the Interior Lowland Ecoregion Land-Use Change Trends in the Interior Lowland Ecoregion
This report describes land-cover trends in the Interior River Lowland ecoregion, located primarily in southern Illinois and includes the confluence areas of the Mississippi, Missouri, Ohio, Illinois, and Wabash Rivers, and their tributaries. Land-cover change statistics were tabulated from forty 10 kilometers (km) by 10-km multi-spectral remote-sensing sample areas collected from 1973 to...
Authors
Dalia Varanka, David Shaver
Ontological foundations of transportation data for the National Map (USA) Ontological foundations of transportation data for the National Map (USA)
No abstract available.
Authors
Dalia Varanka
The 20th-Century Topographic Survey as Source Data for Long-Term Landscape Studies at Local and Regional Scales The 20th-Century Topographic Survey as Source Data for Long-Term Landscape Studies at Local and Regional Scales
Historical topographic maps are the only systematically collected data resource covering the entire nation for long-term landscape change studies over the 20th century for geographical and environmental research. The paper discusses aspects of the historical U.S. Geological Survey topographic maps that present constraints on the design of a database for such studies. Problems involved in...
Authors
Dalia Varanka
Interpreting map art with a perspective learned from J.M. Blaut Interpreting map art with a perspective learned from J.M. Blaut
Map art has been mentioned only briefly in geographic or cartographic literature, and has been analyzed almost entirely at the interpretive level. This paper attempts to define and evaluate the cartographic value of contemporary map-like art by placing the body of work as a whole in the theoretical concepts proposed by J.M. Blaut and his colleagues about mapping as a cognitive and...
Authors
D. Varanka
The manly map: the English construction of gender in early modern cartography The manly map: the English construction of gender in early modern cartography
Questions of gender in cartography most often focus on the sex of people involved in the cartographic process. These areas of research include the history of women cartographers (Tyner 1997: 46; Ritzlin 1989: 5; Hudson 1989: 29), the cartography of issues centered on women (Seager and Olson 1986; Seager et al. 1997; Rocheleau et al. 1995: 62), and women in the cartographic labor force...
Authors
Dalia Varanka
Natural mapping and art: A student's exploratory study with J M Blaut Natural mapping and art: A student's exploratory study with J M Blaut
[No abstract available]
Authors
D. Varanka