John D Gordon (Former Employee)
Science and Products
Filter Total Items: 13
Measuring U.S. Federal Agency progress toward implementation of alternative methods in toxicity testing Measuring U.S. Federal Agency progress toward implementation of alternative methods in toxicity testing
The U.S. Government Accountability Office (GAO) recommended to Congress that federal agencies establish a workgroup through ICCVAM to propose metrics for assessing progress on the development and promotion of alternative methods. This document describes the recommendations of the ICCVAM Metrics Workgroup.
Authors
John D. Gordon, Carol Clarke, Matthew Johnson, Emily N. Reinke, Barnett A. Rattner, Steve Hwang, Evisabel Craig, Anna Lowit, Paul Brown, Karen L. Davis-Bruno, Annabelle Crusan, Suzanne Fitzpatrick, Jueichuan Kang, Robin Levis, Donna L. Mendrick, Jill Merrill, Brian Berridge, Warren Casey, Nicole Kleinstreuer, Harold Watson
Regional regression equations for estimation of four hydraulic properties of streams at approximate bankfull conditions for different ecoregions in Texas Regional regression equations for estimation of four hydraulic properties of streams at approximate bankfull conditions for different ecoregions in Texas
The U.S. Geological Survey, in cooperation with the U.S. Army Corps of Engineers, assessed statistical relations between hydraulic properties of streams at approximate bankfull conditions for different ecological regions (ecoregions) in Texas. Data from more than 103,000 records of measured discharge and ancillary hydraulic properties were assembled from summaries of discharge...
Authors
William H. Asquith, John D. Gordon, David S. Wallace
Refining previous estimates of groundwater outflows from the Medina/Diversion Lake system, San Antonio area, Texas Refining previous estimates of groundwater outflows from the Medina/Diversion Lake system, San Antonio area, Texas
Introduction In 2016, the U.S. Geological Survey (USGS), in cooperation with the San Antonio Water System, began a study to refine previously derived estimates of groundwater outflows from Medina and Diversion Lakes in south-central Texas near San Antonio. When full, Medina and Diversion Lakes (hereinafter referred to as the Medina/Diversion Lake system) (fig. 1) impound approximately...
Authors
Richard N. Slattery, William H. Asquith, John D. Gordon
An overview of historical channel adjustment and selected hydraulic values in the Lower Sabine and Lower Brazos River Basins, Texas and Louisiana An overview of historical channel adjustment and selected hydraulic values in the Lower Sabine and Lower Brazos River Basins, Texas and Louisiana
The Sabine and Brazos are alluvial rivers; alluvial rivers are dynamic systems that adjust their geometry in response to changes in streamflow (discharge) and sediment load. In fluvial geomorphology, the term 'channel adjustment' refers to river channel changes in three geometric dimensions: (1) channel slope (profile); (2) the outline or shape, such as meandering or braided, projected...
Authors
Franklin T. Heitmuller, Lauren E. Greene, John D. John D. Gordon
Surface water-quality and water-quantity data from selected urban runoff-monitoring sites at the Rocky Mountain Arsenal, Commerce City, Colorado, water years 1988-2004 Surface water-quality and water-quantity data from selected urban runoff-monitoring sites at the Rocky Mountain Arsenal, Commerce City, Colorado, water years 1988-2004
The U.S. Geological Survey has monitored the quality and quantity of streamflow at the Rocky Mountain Arsenal (RMA) northeast of Denver, Colorado, since the early 1990s in cooperation with the U.S. Army. This report, prepared in cooperation with the U.S. Fish and Wildlife Service, documents existing surface-water-quality conditions on the RMA. All RMA water-quality data for the Irondale...
Authors
John D. Gordon, Donald E. Schild, Joseph P. Capesius, Cecil B. Slaughter
External quality-assurance results for the national atmospheric deposition program/national trends network, 2000-2001 External quality-assurance results for the national atmospheric deposition program/national trends network, 2000-2001
Five external quality-assurance programs were operated by the U.S. Geological Survey for the National Atmospheric Deposition Program/National Trends Network (NADP/NTN) from 2000 through 2001 (study period): the intersite-comparison program, the blind-audit program, the field-audit program, the interlaboratory-comparison program, and the collocated-sampler program. Each program is...
Authors
Gregory A. Wetherbee, Natalie E. Latysh, John D. Gordon
myScience: USGS Citizen Science Project Discovery & Public Engagement Web Application
How can the public discover opportunities for participation in USGS scientific research? What citizen science projects are currently active within the USGS? How may PIs increase public engagement in and awareness of their citizen science projects? To address these questions, a web application leveraging existing Community for Data Integration (CDI) and USGS work was created to allow...
Science and Products
Filter Total Items: 13
Measuring U.S. Federal Agency progress toward implementation of alternative methods in toxicity testing Measuring U.S. Federal Agency progress toward implementation of alternative methods in toxicity testing
The U.S. Government Accountability Office (GAO) recommended to Congress that federal agencies establish a workgroup through ICCVAM to propose metrics for assessing progress on the development and promotion of alternative methods. This document describes the recommendations of the ICCVAM Metrics Workgroup.
Authors
John D. Gordon, Carol Clarke, Matthew Johnson, Emily N. Reinke, Barnett A. Rattner, Steve Hwang, Evisabel Craig, Anna Lowit, Paul Brown, Karen L. Davis-Bruno, Annabelle Crusan, Suzanne Fitzpatrick, Jueichuan Kang, Robin Levis, Donna L. Mendrick, Jill Merrill, Brian Berridge, Warren Casey, Nicole Kleinstreuer, Harold Watson
Regional regression equations for estimation of four hydraulic properties of streams at approximate bankfull conditions for different ecoregions in Texas Regional regression equations for estimation of four hydraulic properties of streams at approximate bankfull conditions for different ecoregions in Texas
The U.S. Geological Survey, in cooperation with the U.S. Army Corps of Engineers, assessed statistical relations between hydraulic properties of streams at approximate bankfull conditions for different ecological regions (ecoregions) in Texas. Data from more than 103,000 records of measured discharge and ancillary hydraulic properties were assembled from summaries of discharge...
Authors
William H. Asquith, John D. Gordon, David S. Wallace
Refining previous estimates of groundwater outflows from the Medina/Diversion Lake system, San Antonio area, Texas Refining previous estimates of groundwater outflows from the Medina/Diversion Lake system, San Antonio area, Texas
Introduction In 2016, the U.S. Geological Survey (USGS), in cooperation with the San Antonio Water System, began a study to refine previously derived estimates of groundwater outflows from Medina and Diversion Lakes in south-central Texas near San Antonio. When full, Medina and Diversion Lakes (hereinafter referred to as the Medina/Diversion Lake system) (fig. 1) impound approximately...
Authors
Richard N. Slattery, William H. Asquith, John D. Gordon
An overview of historical channel adjustment and selected hydraulic values in the Lower Sabine and Lower Brazos River Basins, Texas and Louisiana An overview of historical channel adjustment and selected hydraulic values in the Lower Sabine and Lower Brazos River Basins, Texas and Louisiana
The Sabine and Brazos are alluvial rivers; alluvial rivers are dynamic systems that adjust their geometry in response to changes in streamflow (discharge) and sediment load. In fluvial geomorphology, the term 'channel adjustment' refers to river channel changes in three geometric dimensions: (1) channel slope (profile); (2) the outline or shape, such as meandering or braided, projected...
Authors
Franklin T. Heitmuller, Lauren E. Greene, John D. John D. Gordon
Surface water-quality and water-quantity data from selected urban runoff-monitoring sites at the Rocky Mountain Arsenal, Commerce City, Colorado, water years 1988-2004 Surface water-quality and water-quantity data from selected urban runoff-monitoring sites at the Rocky Mountain Arsenal, Commerce City, Colorado, water years 1988-2004
The U.S. Geological Survey has monitored the quality and quantity of streamflow at the Rocky Mountain Arsenal (RMA) northeast of Denver, Colorado, since the early 1990s in cooperation with the U.S. Army. This report, prepared in cooperation with the U.S. Fish and Wildlife Service, documents existing surface-water-quality conditions on the RMA. All RMA water-quality data for the Irondale...
Authors
John D. Gordon, Donald E. Schild, Joseph P. Capesius, Cecil B. Slaughter
External quality-assurance results for the national atmospheric deposition program/national trends network, 2000-2001 External quality-assurance results for the national atmospheric deposition program/national trends network, 2000-2001
Five external quality-assurance programs were operated by the U.S. Geological Survey for the National Atmospheric Deposition Program/National Trends Network (NADP/NTN) from 2000 through 2001 (study period): the intersite-comparison program, the blind-audit program, the field-audit program, the interlaboratory-comparison program, and the collocated-sampler program. Each program is...
Authors
Gregory A. Wetherbee, Natalie E. Latysh, John D. Gordon
myScience: USGS Citizen Science Project Discovery & Public Engagement Web Application
How can the public discover opportunities for participation in USGS scientific research? What citizen science projects are currently active within the USGS? How may PIs increase public engagement in and awareness of their citizen science projects? To address these questions, a web application leveraging existing Community for Data Integration (CDI) and USGS work was created to allow...