E. Lynn Usery (Former Employee)
Science and Products
Filter Total Items: 59
Center of Excellence for Geospatial Information Science research plan 2013-18
The U.S. Geological Survey Center of Excellence for Geospatial Information Science (CEGIS) was created in 2006 and since that time has provided research primarily in support of The National Map. The presentations and publications of the CEGIS researchers document the research accomplishments that include advances in electronic topographic map design, generalization, data integration, map projectio
Authors
E. Lynn Usery
Design and development of linked data from the National Map
The development of linked data on the World-Wide Web provides the opportunity for the U.S. Geological Survey (USGS) to supply its extensive volumes of geospatial data, information, and knowledge in a machine interpretable form and reach users and applications that heretofore have been unavailable. To pilot a process to take advantage of this opportunity, the USGS is developing an ontology for The
Authors
E. Lynn Usery, Dalia E. Varanka
The U.S. Geological Survey cartographic and geographic information science research activities 2006-2010
The U.S. Geological Survey (USGS) produces geospatial databases and topographic maps for the United States of America. A part of that mission includes conducting research in geographic information science (GIScience) and cartography to support mapping and improve the design, quality, delivery, and use of geospatial data and topographic maps. The Center of Excellence for Geospatial Information Scie
Authors
E. Lynn Usery
Introduction to papers from the AutoCarto 2010 Conference
No abstract available.
Authors
E. Lynn Usery
Topographic mapping data semantics through data conversion and enhancement
This paper presents research on the semantics of topographic data for triples and ontologies to blend the capabilities of the Semantic Web and The National Map of the U.S. Geological Survey. Automated conversion of relational topographic data of several geographic sample areas to the triple data model standard resulted in relatively poor semantic associations. Further research employed vocabularie
Authors
Dalia Varanka, Jonathan Carter, E. Lynn Usery, Thomas Shoberg
Performance of map symbol and label design with format and display resolution options through scale for the national map
Symbol and label design for U.S. topographic mapping using data from The National Map has been progressing, partly in support of research by Buttenfield and Stanislawski on hydrographic generalization, and is sponsored by CEGIS, the USGS Center of Excellence for Geospatial Information Science. The work also seeks to make the best use of GIS for map design that requires no hand-work to make custom
Authors
C. A. Brewer, C. L. Hanchett, B. P. Butterfield, E. Lynn Usery
Ontological Issues for national topographic mapping
No abstract available.
Authors
Dalia E. Varanka, E. Lynn Usery
Effects of sampling interval on spatial patterns and statistics of watershed nitrogen concentration
This study investigates how spatial patterns and statistics of a 30 m resolution, model-simulated, watershed nitrogen concentration surface change with sampling intervals from 30 m to 600 m for every 30 m increase for the Little River Watershed (Georgia, USA). The results indicate that the mean, standard deviation, and variogram sills do not have consistent trends with increasing sampling interval
Authors
S.-S.D. Wu, E.L. Usery, M.P. Finn, D.D. Bosch
A prototype feature system for feature retrieval using relationships
Using a feature data model, geographic phenomena can be represented effectively by integrating space, theme, and time. This paper extends and implements a feature data model that supports query and visualization of geographic features using their non-spatial and temporal relationships. A prototype feature-oriented geographic information system (FOGIS) is then developed and storage of features name
Authors
J. Choi, E.L. Usery
Ground and surface temperature variability for remote sensing of soil moisture in a heterogeneous landscape
At the Little River Watershed (LRW) heterogeneous landscape near Tifton Georgia US an in situ network of stations operated by the US Department of Agriculture-Agriculture Research Service-Southeast Watershed Research Lab (USDA-ARS-SEWRL) was established in 2003 for the long term study of climatic and soil biophysical processes. To develop an accurate interpolation of the in situ readings that can
Authors
M.A. Giraldo, D. Bosch, M. Madden, L. Usery, M. Finn
Data layer integration for the national map of the united states
The integration of geographic data layers in multiple raster and vector formats, from many different organizations and at a variety of resolutions and scales, is a significant problem for The National Map of the United States being developed by the U.S. Geological Survey. Our research has examined data integration from a layer-based approach for five of The National Map data layers: digital orthoi
Authors
E.L. Usery, M.P. Finn, M. Starbuck
GIS applications for military operations in coastal zones
In order to successfully support current and future US military operations in coastal zones, geospatial information must be rapidly integrated and analyzed to meet ongoing force structure evolution and new mission directives. Coastal zones in a military-operational environment are complex regions that include sea, land and air features that demand high-volume databases of extreme detail within rel
Authors
S. Fleming, T. Jordan, M. Madden, E.L. Usery, R. Welch
Science and Products
Filter Total Items: 59
Center of Excellence for Geospatial Information Science research plan 2013-18
The U.S. Geological Survey Center of Excellence for Geospatial Information Science (CEGIS) was created in 2006 and since that time has provided research primarily in support of The National Map. The presentations and publications of the CEGIS researchers document the research accomplishments that include advances in electronic topographic map design, generalization, data integration, map projectio
Authors
E. Lynn Usery
Design and development of linked data from the National Map
The development of linked data on the World-Wide Web provides the opportunity for the U.S. Geological Survey (USGS) to supply its extensive volumes of geospatial data, information, and knowledge in a machine interpretable form and reach users and applications that heretofore have been unavailable. To pilot a process to take advantage of this opportunity, the USGS is developing an ontology for The
Authors
E. Lynn Usery, Dalia E. Varanka
The U.S. Geological Survey cartographic and geographic information science research activities 2006-2010
The U.S. Geological Survey (USGS) produces geospatial databases and topographic maps for the United States of America. A part of that mission includes conducting research in geographic information science (GIScience) and cartography to support mapping and improve the design, quality, delivery, and use of geospatial data and topographic maps. The Center of Excellence for Geospatial Information Scie
Authors
E. Lynn Usery
Introduction to papers from the AutoCarto 2010 Conference
No abstract available.
Authors
E. Lynn Usery
Topographic mapping data semantics through data conversion and enhancement
This paper presents research on the semantics of topographic data for triples and ontologies to blend the capabilities of the Semantic Web and The National Map of the U.S. Geological Survey. Automated conversion of relational topographic data of several geographic sample areas to the triple data model standard resulted in relatively poor semantic associations. Further research employed vocabularie
Authors
Dalia Varanka, Jonathan Carter, E. Lynn Usery, Thomas Shoberg
Performance of map symbol and label design with format and display resolution options through scale for the national map
Symbol and label design for U.S. topographic mapping using data from The National Map has been progressing, partly in support of research by Buttenfield and Stanislawski on hydrographic generalization, and is sponsored by CEGIS, the USGS Center of Excellence for Geospatial Information Science. The work also seeks to make the best use of GIS for map design that requires no hand-work to make custom
Authors
C. A. Brewer, C. L. Hanchett, B. P. Butterfield, E. Lynn Usery
Ontological Issues for national topographic mapping
No abstract available.
Authors
Dalia E. Varanka, E. Lynn Usery
Effects of sampling interval on spatial patterns and statistics of watershed nitrogen concentration
This study investigates how spatial patterns and statistics of a 30 m resolution, model-simulated, watershed nitrogen concentration surface change with sampling intervals from 30 m to 600 m for every 30 m increase for the Little River Watershed (Georgia, USA). The results indicate that the mean, standard deviation, and variogram sills do not have consistent trends with increasing sampling interval
Authors
S.-S.D. Wu, E.L. Usery, M.P. Finn, D.D. Bosch
A prototype feature system for feature retrieval using relationships
Using a feature data model, geographic phenomena can be represented effectively by integrating space, theme, and time. This paper extends and implements a feature data model that supports query and visualization of geographic features using their non-spatial and temporal relationships. A prototype feature-oriented geographic information system (FOGIS) is then developed and storage of features name
Authors
J. Choi, E.L. Usery
Ground and surface temperature variability for remote sensing of soil moisture in a heterogeneous landscape
At the Little River Watershed (LRW) heterogeneous landscape near Tifton Georgia US an in situ network of stations operated by the US Department of Agriculture-Agriculture Research Service-Southeast Watershed Research Lab (USDA-ARS-SEWRL) was established in 2003 for the long term study of climatic and soil biophysical processes. To develop an accurate interpolation of the in situ readings that can
Authors
M.A. Giraldo, D. Bosch, M. Madden, L. Usery, M. Finn
Data layer integration for the national map of the united states
The integration of geographic data layers in multiple raster and vector formats, from many different organizations and at a variety of resolutions and scales, is a significant problem for The National Map of the United States being developed by the U.S. Geological Survey. Our research has examined data integration from a layer-based approach for five of The National Map data layers: digital orthoi
Authors
E.L. Usery, M.P. Finn, M. Starbuck
GIS applications for military operations in coastal zones
In order to successfully support current and future US military operations in coastal zones, geospatial information must be rapidly integrated and analyzed to meet ongoing force structure evolution and new mission directives. Coastal zones in a military-operational environment are complex regions that include sea, land and air features that demand high-volume databases of extreme detail within rel
Authors
S. Fleming, T. Jordan, M. Madden, E.L. Usery, R. Welch