James T Rogala (Former Employee)
Science and Products
Responses of Native Freshwater Mussels to Remedial Dredging in the upper Hudson River Responses of Native Freshwater Mussels to Remedial Dredging in the upper Hudson River
The Hudson River, New York, was contaminated with polychlorinated biphenyls (PCBs) from two General Electric plants over a period of ~30 years and PCBs are still present in sediment and biota today. The river provides habitat for a variety of plants and animals, including native freshwater mussels. Although little is known about mussels in this river, managers were concerned that a 7...
2010/11 Level 3 Aquatic Areas - Upper Mississippi River System 2010/11 Level 3 Aquatic Areas - Upper Mississippi River System
The U.S. Geological Survey's Upper Midwest Environmental Sciences Center (UMESC) created high-resolution land cover/use data sets for the Upper Mississippi River System (UMRS). Aerial images of Pools 3-13 Upper Mississippi River System and Pools, Alton-Marseilles, Illinois River were collected in color infrared (CIR) in August of 2010 at 8/pixel and 16/pixel respectively using a mapping...
2010/11 Level 2 Aquatic Areas - Upper Mississippi River System 2010/11 Level 2 Aquatic Areas - Upper Mississippi River System
The U.S. Geological Survey's Upper Midwest Environmental Sciences Center (UMESC) has created high-resolution land cover/use data sets for the Upper Mississippi River System (UMRS). Aerial images of Pools 3-13 Upper Mississippi River System and Pools, Alton-Marseilles, Illinois River were collected in color infrared (CIR) in August of 2010 at 8/pixel and 16/pixel respectively using a...
Filter Total Items: 26
Upper Mississippi River System hydrogeomorphic change conceptual model and hierarchical classification Upper Mississippi River System hydrogeomorphic change conceptual model and hierarchical classification
Understanding the geomorphic processes and causes for long-term hydrogeomorphic changes along the Upper Mississippi River System (UMRS) is necessary for scientific studies ranging from habitat needs assessments, sediment transport, and nutrient processing, and making sound management decisions and prioritizing ecological restoration activities. From 2018 through 2020 the U.S. Geological...
Authors
Faith A. Fitzpatrick, James T. Rogala, Jon S. Hendrickson, Lucie Sawyer, Jayme Stone, Susannah Erwin, Edward J. Brauer, Angus Vaughan
Responses of native freshwater mussels to remediation to remove polychlorinated biphenyl-contaminated sediments in the upper Hudson River Responses of native freshwater mussels to remediation to remove polychlorinated biphenyl-contaminated sediments in the upper Hudson River
The Hudson River, New York, was contaminated with polychlorinated biphenyls (PCBs) from two manufacturing plants over a period of approximately 30 years, and PCBs are still present in sediment and biota today. The river provides habitat for a variety of plants and animals, including native freshwater mussels. A remediation programme, consisting of dredging followed by the placement of...
Authors
Teresa J. Newton, Denise A. Mayer, James T. Rogala, Sean S. Madden, Brian R. Gray
Understanding constraints on submersed vegetation distribution in a large, floodplain river: The role of water level fluctuations, water clarity and river geomorphology Understanding constraints on submersed vegetation distribution in a large, floodplain river: The role of water level fluctuations, water clarity and river geomorphology
Aquatic vegetation is a key component of large floodplain river ecosystems. In the Upper Mississippi River System (UMRS), there is a long-standing interest in restoring aquatic vegetation in areas where it has declined or disappeared. To better understand what constrains vegetation distribution in large river ecosystems and inform ongoing efforts to restore submersed aquatic vegetation...
Authors
Alicia Carhart, John Kalas, James T. Rogala, Jason J. Rohweder, Deanne C. Drake, Jeffrey N. Houser
Recent planform changes in the Upper Mississippi River Recent planform changes in the Upper Mississippi River
Geomorphic changes in the Upper Mississippi River (UMR) have long been a concern of river agencies charged with maintaining and restoring river habitat (GREAT 1980; Jackson et al. 1981; USFWS 1992). Large meandering alluvial rivers like the UMR are expected to constantly change and adjust their fluvial landforms within their riparian corridors as a result of the natural interaction of...
Authors
James T. Rogala, Faith A. Fitzpatrick, Jon S. Hendrickson
Upper Mississippi River system weighted wind fetch analysis (1989, 2000, 2010/2011) Upper Mississippi River system weighted wind fetch analysis (1989, 2000, 2010/2011)
Wind fetch is defined as the unobstructed distance that wind can travel over water in a constant direction. Fetches are limited by landforms surrounding the body of water. Fetch is an important characteristic of open water because longer fetches can result in larger wind-generated waves. The larger waves, in turn, can increase shoreline erosion and sediment resuspension (Rohweder and...
Authors
Jason J. Rohweder, James T. Rogala
Population assessment and potential functional roles of native mussels in the Upper Hudson River Population assessment and potential functional roles of native mussels in the Upper Hudson River
General Electric Company (GE) directly and indirectly released polychlorinated biphenyls (PCBs) into the Hudson River and the surrounding environment starting in the late 1940’s, making it one of the most PCB-contaminated rivers in North America. Source control at two GE plant sites was implemented in 2009 to stem the influx of PCBs into the river (NYSDEC 2004; Farrar 2013; NYSDEC 2015)...
Authors
Denise A. Mayer, Teresa J. Newton, James T. Rogala
Science and Products
Responses of Native Freshwater Mussels to Remedial Dredging in the upper Hudson River Responses of Native Freshwater Mussels to Remedial Dredging in the upper Hudson River
The Hudson River, New York, was contaminated with polychlorinated biphenyls (PCBs) from two General Electric plants over a period of ~30 years and PCBs are still present in sediment and biota today. The river provides habitat for a variety of plants and animals, including native freshwater mussels. Although little is known about mussels in this river, managers were concerned that a 7...
2010/11 Level 3 Aquatic Areas - Upper Mississippi River System 2010/11 Level 3 Aquatic Areas - Upper Mississippi River System
The U.S. Geological Survey's Upper Midwest Environmental Sciences Center (UMESC) created high-resolution land cover/use data sets for the Upper Mississippi River System (UMRS). Aerial images of Pools 3-13 Upper Mississippi River System and Pools, Alton-Marseilles, Illinois River were collected in color infrared (CIR) in August of 2010 at 8/pixel and 16/pixel respectively using a mapping...
2010/11 Level 2 Aquatic Areas - Upper Mississippi River System 2010/11 Level 2 Aquatic Areas - Upper Mississippi River System
The U.S. Geological Survey's Upper Midwest Environmental Sciences Center (UMESC) has created high-resolution land cover/use data sets for the Upper Mississippi River System (UMRS). Aerial images of Pools 3-13 Upper Mississippi River System and Pools, Alton-Marseilles, Illinois River were collected in color infrared (CIR) in August of 2010 at 8/pixel and 16/pixel respectively using a...
Filter Total Items: 26
Upper Mississippi River System hydrogeomorphic change conceptual model and hierarchical classification Upper Mississippi River System hydrogeomorphic change conceptual model and hierarchical classification
Understanding the geomorphic processes and causes for long-term hydrogeomorphic changes along the Upper Mississippi River System (UMRS) is necessary for scientific studies ranging from habitat needs assessments, sediment transport, and nutrient processing, and making sound management decisions and prioritizing ecological restoration activities. From 2018 through 2020 the U.S. Geological...
Authors
Faith A. Fitzpatrick, James T. Rogala, Jon S. Hendrickson, Lucie Sawyer, Jayme Stone, Susannah Erwin, Edward J. Brauer, Angus Vaughan
Responses of native freshwater mussels to remediation to remove polychlorinated biphenyl-contaminated sediments in the upper Hudson River Responses of native freshwater mussels to remediation to remove polychlorinated biphenyl-contaminated sediments in the upper Hudson River
The Hudson River, New York, was contaminated with polychlorinated biphenyls (PCBs) from two manufacturing plants over a period of approximately 30 years, and PCBs are still present in sediment and biota today. The river provides habitat for a variety of plants and animals, including native freshwater mussels. A remediation programme, consisting of dredging followed by the placement of...
Authors
Teresa J. Newton, Denise A. Mayer, James T. Rogala, Sean S. Madden, Brian R. Gray
Understanding constraints on submersed vegetation distribution in a large, floodplain river: The role of water level fluctuations, water clarity and river geomorphology Understanding constraints on submersed vegetation distribution in a large, floodplain river: The role of water level fluctuations, water clarity and river geomorphology
Aquatic vegetation is a key component of large floodplain river ecosystems. In the Upper Mississippi River System (UMRS), there is a long-standing interest in restoring aquatic vegetation in areas where it has declined or disappeared. To better understand what constrains vegetation distribution in large river ecosystems and inform ongoing efforts to restore submersed aquatic vegetation...
Authors
Alicia Carhart, John Kalas, James T. Rogala, Jason J. Rohweder, Deanne C. Drake, Jeffrey N. Houser
Recent planform changes in the Upper Mississippi River Recent planform changes in the Upper Mississippi River
Geomorphic changes in the Upper Mississippi River (UMR) have long been a concern of river agencies charged with maintaining and restoring river habitat (GREAT 1980; Jackson et al. 1981; USFWS 1992). Large meandering alluvial rivers like the UMR are expected to constantly change and adjust their fluvial landforms within their riparian corridors as a result of the natural interaction of...
Authors
James T. Rogala, Faith A. Fitzpatrick, Jon S. Hendrickson
Upper Mississippi River system weighted wind fetch analysis (1989, 2000, 2010/2011) Upper Mississippi River system weighted wind fetch analysis (1989, 2000, 2010/2011)
Wind fetch is defined as the unobstructed distance that wind can travel over water in a constant direction. Fetches are limited by landforms surrounding the body of water. Fetch is an important characteristic of open water because longer fetches can result in larger wind-generated waves. The larger waves, in turn, can increase shoreline erosion and sediment resuspension (Rohweder and...
Authors
Jason J. Rohweder, James T. Rogala
Population assessment and potential functional roles of native mussels in the Upper Hudson River Population assessment and potential functional roles of native mussels in the Upper Hudson River
General Electric Company (GE) directly and indirectly released polychlorinated biphenyls (PCBs) into the Hudson River and the surrounding environment starting in the late 1940’s, making it one of the most PCB-contaminated rivers in North America. Source control at two GE plant sites was implemented in 2009 to stem the influx of PCBs into the river (NYSDEC 2004; Farrar 2013; NYSDEC 2015)...
Authors
Denise A. Mayer, Teresa J. Newton, James T. Rogala