Janice Fulford
Janice Fulford is the Director of the Observing Systems Division for the USGS Water Resources Mission Area.
Science and Products
Filter Total Items: 28
Model Performance of Water-Current Meters
The measurement of discharge in natural streams requires hydrographers to use accurate water-current meters that have consistent performance among meters of the same model. This paper presents the results of an investigation into the performance of four models of current meters - Price type-AA, Price pygmy, Marsh McBirney 2000 and Swoffer 2100. Tests for consistency and accuracy for six meters of
Authors
J.M. Fulford
Near-real-time simulation and internet-based delivery of forecast-flood inundation maps using two-dimensional hydraulic modeling--A pilot study for the Snoqualmie River, Washington
A system of numerical hydraulic modeling, geographic information system processing, and Internet map serving, supported by new data sources and application automation, was developed that generates inundation maps for forecast floods in near real time and makes them available through the Internet. Forecasts for flooding are generated by the National Weather Service (NWS) River Forecast Center (RFC)
Authors
Joseph L. Jones, Janice M. Fulford, Frank D. Voss
Evaluation and comparison of four one-dimensional unsteady flow models
No abstract available.
Authors
Janice M. Fulford
Review of selected features of the natural system model, and suggestions for applications in South Florida
A study was conducted to review selected features of the Natural System Model, version 4.3 . The Natural System Model is a regional-scale model that uses recent climatic data and estimates of historic vegetation and topography to simulate pre-canal-drainage hydrologic response in south Florida. Equations used to represent the hydrologic system and the numerical solution of these equations in the m
Authors
Jerad Bales, Janice M. Fulford, Eric D. Swain
Review and evaluation of a model for simulating the natural hydrology of South Florida
The South Florida Ecosystem Program is an intergovernmental effort to re-establish and maintain the ecosystem of South Florida. One element of the restoration effort is the development of a firm scientific basis for making management decisions. The U.S. Geologcal Survey (USGS) is one of the agencies that provides this needed scientific information through the USGS South Florida Ecosystem Program.
Authors
Jerad D. Bales, Janice M. Fulford, Eric D. Swain
Effects of pulsating flow on current meter performance
Summarized are laboratory tests for current meter response to pulsating flows. Included are results for mechanical and electromagnetic water-current meters that are commonly used for stream gaging. Most of the vertical-axis and horizontal-axis types of mechanical meters that were tested significantly underregistered the mean flow velocity when the magnitude of the pulsating portion of the flow vel
Authors
Janice M. Fulford
Effects of simulated ice on the performance of price type-AA current meter rotors
Slush ice readily adheres to the standard metal rotor of the winter Price type-AA current meter and affects the ability of the meter to measure the flow velocity accurately. Tests conducted at the U.S. Geological Survey Hydraulics Laboratory at Stennis Space Center, Mississippi, attempt to quantify the effects of slush ice on the performance of standard Price type-AA meter metal rotors. Test data
Authors
Janice M. Fulford
Comparison of current meters used for stream gaging
The U.S. Geological Survey (USGS) is field and laboratory testing the performance of several current meters used throughout the world for stream gaging. Meters tested include horizontal-axis current meters from Germany, the United Kingdom, and the People's Republic of China, and vertical-axis and electromagnetic current meters from the United States. Summarized are laboratory test results for mete
Authors
Janice M. Fulford, Kirk G. Thibodeaux, William R. Kaehrle
Repeatability and oblique flow response characteristics of current meters
Laboratory investigation into the precision and accuracy of various mechanical-current meters are presented. Horizontal-axis and vertical-axis meters that are used for the measurement of point velocities in streams and rivers were tested. Meters were tested for repeatability and response to oblique flows. Both horizontal- and vertical-axis meters were found to under- and over-register oblique flow
Authors
Janice M. Fulford, Kirk G. Thibodeaux, William R. Kaehrle
Culvert analysis program for indirect measurement of discharge
A program based on the U.S. Geological Survey (USGS) methods for indirectly computing peak discharges through culverts allows users to employ input data formats used by the water surface profile program (WSPRO). The program can be used to compute discharge rating surfaces or curves that describe the behavior of flow through a particular culvert or to compute discharges from measurements of upstrea
Authors
Janice M. Fulford
Data encapsulation using FORTRAN-77 modules; a first step toward object-oriented programming in water resources
No abstract available.
Authors
D.B. Thompson, L. L. DeLong, J.M. Fulford
Science and Products
- Publications
Filter Total Items: 28
Model Performance of Water-Current Meters
The measurement of discharge in natural streams requires hydrographers to use accurate water-current meters that have consistent performance among meters of the same model. This paper presents the results of an investigation into the performance of four models of current meters - Price type-AA, Price pygmy, Marsh McBirney 2000 and Swoffer 2100. Tests for consistency and accuracy for six meters ofAuthorsJ.M. FulfordNear-real-time simulation and internet-based delivery of forecast-flood inundation maps using two-dimensional hydraulic modeling--A pilot study for the Snoqualmie River, Washington
A system of numerical hydraulic modeling, geographic information system processing, and Internet map serving, supported by new data sources and application automation, was developed that generates inundation maps for forecast floods in near real time and makes them available through the Internet. Forecasts for flooding are generated by the National Weather Service (NWS) River Forecast Center (RFC)AuthorsJoseph L. Jones, Janice M. Fulford, Frank D. VossEvaluation and comparison of four one-dimensional unsteady flow models
No abstract available.AuthorsJanice M. FulfordReview of selected features of the natural system model, and suggestions for applications in South Florida
A study was conducted to review selected features of the Natural System Model, version 4.3 . The Natural System Model is a regional-scale model that uses recent climatic data and estimates of historic vegetation and topography to simulate pre-canal-drainage hydrologic response in south Florida. Equations used to represent the hydrologic system and the numerical solution of these equations in the mAuthorsJerad Bales, Janice M. Fulford, Eric D. SwainReview and evaluation of a model for simulating the natural hydrology of South Florida
The South Florida Ecosystem Program is an intergovernmental effort to re-establish and maintain the ecosystem of South Florida. One element of the restoration effort is the development of a firm scientific basis for making management decisions. The U.S. Geologcal Survey (USGS) is one of the agencies that provides this needed scientific information through the USGS South Florida Ecosystem Program.AuthorsJerad D. Bales, Janice M. Fulford, Eric D. SwainEffects of pulsating flow on current meter performance
Summarized are laboratory tests for current meter response to pulsating flows. Included are results for mechanical and electromagnetic water-current meters that are commonly used for stream gaging. Most of the vertical-axis and horizontal-axis types of mechanical meters that were tested significantly underregistered the mean flow velocity when the magnitude of the pulsating portion of the flow velAuthorsJanice M. FulfordEffects of simulated ice on the performance of price type-AA current meter rotors
Slush ice readily adheres to the standard metal rotor of the winter Price type-AA current meter and affects the ability of the meter to measure the flow velocity accurately. Tests conducted at the U.S. Geological Survey Hydraulics Laboratory at Stennis Space Center, Mississippi, attempt to quantify the effects of slush ice on the performance of standard Price type-AA meter metal rotors. Test dataAuthorsJanice M. FulfordComparison of current meters used for stream gaging
The U.S. Geological Survey (USGS) is field and laboratory testing the performance of several current meters used throughout the world for stream gaging. Meters tested include horizontal-axis current meters from Germany, the United Kingdom, and the People's Republic of China, and vertical-axis and electromagnetic current meters from the United States. Summarized are laboratory test results for meteAuthorsJanice M. Fulford, Kirk G. Thibodeaux, William R. KaehrleRepeatability and oblique flow response characteristics of current meters
Laboratory investigation into the precision and accuracy of various mechanical-current meters are presented. Horizontal-axis and vertical-axis meters that are used for the measurement of point velocities in streams and rivers were tested. Meters were tested for repeatability and response to oblique flows. Both horizontal- and vertical-axis meters were found to under- and over-register oblique flowAuthorsJanice M. Fulford, Kirk G. Thibodeaux, William R. KaehrleCulvert analysis program for indirect measurement of discharge
A program based on the U.S. Geological Survey (USGS) methods for indirectly computing peak discharges through culverts allows users to employ input data formats used by the water surface profile program (WSPRO). The program can be used to compute discharge rating surfaces or curves that describe the behavior of flow through a particular culvert or to compute discharges from measurements of upstreaAuthorsJanice M. FulfordData encapsulation using FORTRAN-77 modules; a first step toward object-oriented programming in water resources
No abstract available.AuthorsD.B. Thompson, L. L. DeLong, J.M. Fulford - News