Silvia Terziotti
Silvia Terziotti is the Hydrography Science Applications Lead
Silvia spent most of her career with the Water Mission Area in USGS, first in the Virginia Water Science Center and then with the South Atlantic Water Science Center. She served as a GIS Specialist, Team lead and Project Chief for numerous hydrologic studies over the years. She has also served on many technical advisory teams addressing geospatial needs, with an emphasis on lidar applications
Professional Experience
Hydrologic and geomorphologic derivatives from high-resolution elevation data sets. StreamStats support and Advisory Team member.
Education and Certifications
Masters in Urban and Regional Planning (1986) Virginia Commonwealth University, Richmond, VA
Bachelor of Science, Psychology (1983) Randolph-Macon College, Ashland, VA
Science and Products
Estimated depth to water, North Carolina
Average annual precipitation classes to characterize watersheds in North Carolina
Land-Cover Classes to Characterize watersheds in North Carolina
Watershed characteristics rating for North Carolina
Unsaturated zone characteristics rating for North Carolina
Land-use classes to characterize watersheds and unsaturated zones in North Carolina
Percent-slope classes to characterize watersheds in North Carolina
Percent-slope classes to characterize the unsaturated zone in North Carolina
Methods of rating unsaturated zone and watershed characteristics of public water supplies in North Carolina
Susceptibility of ground water to surface and shallow sources of contamination, Orange County, North Carolina
Estimated water use, by county, in North Carolina, 1990
Science and Products
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Filter Total Items: 35
Estimated depth to water, North Carolina
This web site contains the Federal Geographic Data Committee-compliant metadata (documentation) for digital data produced for the North Carolina, Department of Environment and Natural Resources, Public Water Supply Section, Source Water Assessment Program. The metadata are for 11 individual Geographic Information System data sets. An overlay and indexing method was used with the data to derive a rAuthorsJo Leslie Eimers, Silvia Terziotti, Mary J. GiorginoAverage annual precipitation classes to characterize watersheds in North Carolina
This web site contains the Federal Geographic Data Committee-compliant metadata (documentation) for digital data produced for the North Carolina, Department of Environment and Natural Resources, Public Water Supply Section, Source Water Assessment Program. The metadata are for 11 individual Geographic Information System data sets. An overlay and indexing method was used with the data to derive a rAuthorsSilvia Terziotti, Jo Leslie EimersLand-Cover Classes to Characterize watersheds in North Carolina
This web site contains the Federal Geographic Data Committee-compliant metadata (documentation) for digital data produced for the North Carolina, Department of Environment and Natural Resources, Public Water Supply Section, Source Water Assessment Program. The metadata are for 11 individual Geographic Information System data sets. An overlay and indexing method was used with the data to derive a rAuthorsSilvia Terziotti, Jo Leslie EimersWatershed characteristics rating for North Carolina
This web site contains the Federal Geographic Data Committee-compliant metadata (documentation) for digital data produced for the North Carolina, Department of Environment and Natural Resources, Public Water Supply Section, Source Water Assessment Program. The metadata are for 11 individual Geographic Information System data sets. An overlay and indexing method was used with the data to derive a rAuthorsSilvia Terziotti, Jo Leslie Eimers, J. Curtis WeaverUnsaturated zone characteristics rating for North Carolina
This web site contains the Federal Geographic Data Committee-compliant metadata (documentation) for digital data produced for the North Carolina, Department of Environment and Natural Resources, Public Water Supply Section, Source Water Assessment Program. The metadata are for 11 individual Geographic Information System data sets. An overlay and indexing method was used with the data to derive a rAuthorsSilvia Terziotti, Jo Leslie EimersLand-use classes to characterize watersheds and unsaturated zones in North Carolina
This web site contains the Federal Geographic Data Committee-compliant metadata (documentation) for digital data produced for the North Carolina, Department of Environment and Natural Resources, Public Water Supply Section, Source Water Assessment Program. The metadata are for 11 individual Geographic Information System data sets. An overlay and indexing method was used with the data to derive a rAuthorsSilvia Terziotti, Jo Leslie EimersPercent-slope classes to characterize watersheds in North Carolina
This web site contains the Federal Geographic Data Committee-compliant metadata (documentation) for digital data produced for the North Carolina, Department of Environment and Natural Resources, Public Water Supply Section, Source Water Assessment Program. The metadata are for 11 individual Geographic Information System data sets. An overlay and indexing method was used with the data to derive a rAuthorsSilvia Terziotti, Jo Leslie EimersPercent-slope classes to characterize the unsaturated zone in North Carolina
This web site contains the Federal Geographic Data Committee-compliant metadata (documentation) for digital data produced for the North Carolina, Department of Environment and Natural Resources, Public Water Supply Section, Source Water Assessment Program. The metadata are for 11 individual Geographic Information System data sets. An overlay and indexing method was used with the data to derive a rAuthorsSilvia Terziotti, Jo Leslie EimersMethods of rating unsaturated zone and watershed characteristics of public water supplies in North Carolina
Overlay and index methods were derived for rating the unsaturated zone and watershed characteristics for use by the State of North Carolina in assessing more than 11,000 public water-supply wells and approximately 245 public surface-water intakes. The rating of the unsaturated zone and watershed characteristics represents a practical and effective means of assessing part of the inherent vulnerabilAuthorsJo Leslie Eimers, J.C. Weaver, Silvia Terziotti, R.W. MidgetteSusceptibility of ground water to surface and shallow sources of contamination, Orange County, North Carolina
In 1998, the relative susceptibility of ground water in Orange County, North Carolina,to contamination from surface and shallow sources was evaluated. A geographic information system was used to build three county-wide layers--soil permeability, land use/land cover, and land-surface slope. The harmonic mean permeability of soil layers was used to estimate a location's capacity to transmit water thAuthorsSilvia Terziotti, J. L. EimersEstimated water use, by county, in North Carolina, 1990
Data on water use in North Carolina were compiled for 1990 as part of a cooperative agreement between the U.S. Geological Survey and the Division of Water Resources of the North Carolina Department of Environment, Health, and Natural Resources. Data were compiled from a number of Federal, State, and private sources for the offstream water-use categories of public supply, domestic, commercial, induAuthorsSilvia Terziotti, Tony P. Schrader, M.W. Treece - Data
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