Jon Burau
Jon Burau - California Water Science Center
Science and Products
Filter Total Items: 65
Pulsey, patchy water quality in the delta: Implications for meaningful monitoring
Valuable water quality and biological datasets have been gathered in the Sacramento-San Joaquin Delta for decades, most notably by the Interagency Ecological Program’s Environmental Monitoring Program (EMP). These extensive data have provided a means of analyzing and detecting long-term trends in water quality and ecosystem function (Jassby and others 2002; Kimmerer and Orsi 1996; Orsi and Mecum 1
Authors
Lisa V. Lucas, Tara Schraga, Cary B. Lopez, Jon R. Burau, Alan D. Jassby
Persistence of tidally-oriented vertical migration by zooplankton in a temperate estuary
Tidal vertical migration by zooplankton is a common phenomenon in estuaries, usually associated with landward movement of meroplankton or position maintenance of holoplankton. Little is known about the persistence of this behavior, its spatial variability, or its response to changing environmental conditions. We extended a previous study of tidal movements of zooplankton in the low-salinity zone (
Authors
W.J. Kimmerer, Jon R. Burau, W.A. Bennett
Plasticity in vertical migration by native and exotic estuarine fishes in a dynamic low‐salinity zone
We investigated the degree of flexibility in retention strategies of young fishes in the low‐salinity zone (LSZ) of the San Francisco Estuary during years of highly variable river flow. We conducted depth‐stratified sampling over three full tidal cycles in each year from 1994 to 1996. In 1994, exotic striped bass (Morone saxatilis), native longfin smelt (Spirinchus thaleichthys), and exotic yellow
Authors
William A. Bennett, Wim J. Kimmerer, Jon R. Burau
Hydrodynamic field study of a shallow estuarine subembayment, Sherman Lake, California
Sherman Lake, California, has two hydrodynamically distinct regions: a tidally forced jet located along the eastern flank that creates an important hydraulic connection between the Sacramento and San Joaquin Rivers, and a relatively quiescent area in the west. The forcing mechanisms driving circulation and transport are spatially variable in Sherman Lake, a characteristic, we are finding, that is
Authors
C.A. Ruhl, J.R. Burau, R.N. Oltmann
Tidal asymmetry and variability of bed shear stress and sediment bed flux at a site in San Francisco Bay, USA
The relationship between sediment bed flux and bed shear stress during a pair of field experiments in a partially stratified estuary is examined in this paper. Time series of flow velocity, vertical density profiles, and suspended sediment concentration were measured continuously throughout the water column and intensely within 1 meter of the bed. These time series were analyzed to determine bed s
Authors
Matthew L. Brennan, David H. Schoellhamer, Jon R. Burau, Stephen G. Monismith
Structure and flow-induced variability of the subtidal salinity field in northern San Francisco Bay
The structure of the salinity field in northern San Francisco Bay and how it is affected by freshwater flow are discussed. Two datasets are examined: the first is 23 years of daily salinity data taken by the U.S. Bureau of Reclamation along the axis of northern San Francisco Bay; the second is a set of salinity transects taken by the U.S. Geological Survey between 1988 and 1993. Central to this pa
Authors
Stephen G. Monismith, Wim Kimmerer, Jon R. Burau, Mark T. Stacey
Effects of tidal current phase at the junction of two straits
Estuaries typically have a monotonic increase in salinity from freshwater at the head of the estuary to ocean water at the mouth, creating a consistent direction for the longitudinal baroclinic pressure gradient. However, Mare Island Strait in San Francisco Bay has a local salinity minimum created by the phasing of the currents at the junction of Mare Island and Carquinez Straits. The salinity min
Authors
John C. Warner, David H. Schoellhamer, Jon Burau, Geoffrey Schladow
Creation of residual flows in a partially stratified estuary
The creation of residual flows in estuaries is examined using acoustic Doppler current profiler data sets from northern San Francisco Bay. The data sets are analyzed using principal component analysis to examine the temporal variability of the flows which create the residual circulation. It is seen that in this periodically and partially stratified estuary the residual flows are created through a
Authors
M.T. Stacey, J.R. Burau, Stephen G. Monismith
Hydrodynamic and suspended-solids concentration measurements in Suisun Bay, California, 1995
Sea level, current velocity, water temperature, salinity (computed from conductivity and temperature), and suspended-solids data collected in Suisun Bay, California, from May 30, 1995, through October 27, 1995, by the U.S. Geological Survey are documented in this report. Data were collected concurrently at 21 sites. Various parameters were measured at each site. Velocity-profile data were collecte
Authors
Jay I. Cuetara, Jon R. Burau, David H. Schoellhamer
Recent research on the hydrodynamics of the Sacramento - San Joaquin River Delta and north San Francisco Bay
This article presents an overview of recent findings from hydrodynamic research on circulation and mixing in the Sacramento-San Joaquin Delta (Delta) (Figure 1) and North San Francisco Bay (North Bay) (Figure 2). For the purposes of this article, North Bay includes San Pablo Bay, Carquinez Strait, and Suisun Bay. The findings presented are those gained from field studies carried out by the U.S. Ge
Authors
Jon R. Burau, Stephen G. Monismith, Mark T. Stacey, Richard N. Oltmann, Jessica Lacy, David H. Schoellhamer
Observations of turbulence in a partially stratified estuary
The authors present a field study of estuarine turbulence in which profiles of Reynolds stresses were directly measured using an ADCP throughout a 25-h tidal day. The dataset that is discussed quantifies turbulent mixing for a water column in northern San Francisco Bay that experiences a sequence of states that includes a weak ebb and flood that are stratified, followed by a strong, and eventually
Authors
M.T. Stagey, Stephen G. Monismith, J.R. Burau
Measurements of Reynolds stress profiles in unstratified tidal flow
In this paper we present a method for measuring profiles of turbulence quantities using a broadband acoustic doppler current profiler (ADCP). The method follows previous work on the continental shelf and extends the analysis to develop estimates of the errors associated with the estimation methods. ADCP data was collected in an unstratified channel and the results of the analysis are compared to t
Authors
M.T. Stacey, Stephen G. Monismith, J.R. Burau
Science and Products
Filter Total Items: 65
Pulsey, patchy water quality in the delta: Implications for meaningful monitoring
Valuable water quality and biological datasets have been gathered in the Sacramento-San Joaquin Delta for decades, most notably by the Interagency Ecological Program’s Environmental Monitoring Program (EMP). These extensive data have provided a means of analyzing and detecting long-term trends in water quality and ecosystem function (Jassby and others 2002; Kimmerer and Orsi 1996; Orsi and Mecum 1
Authors
Lisa V. Lucas, Tara Schraga, Cary B. Lopez, Jon R. Burau, Alan D. Jassby
Persistence of tidally-oriented vertical migration by zooplankton in a temperate estuary
Tidal vertical migration by zooplankton is a common phenomenon in estuaries, usually associated with landward movement of meroplankton or position maintenance of holoplankton. Little is known about the persistence of this behavior, its spatial variability, or its response to changing environmental conditions. We extended a previous study of tidal movements of zooplankton in the low-salinity zone (
Authors
W.J. Kimmerer, Jon R. Burau, W.A. Bennett
Plasticity in vertical migration by native and exotic estuarine fishes in a dynamic low‐salinity zone
We investigated the degree of flexibility in retention strategies of young fishes in the low‐salinity zone (LSZ) of the San Francisco Estuary during years of highly variable river flow. We conducted depth‐stratified sampling over three full tidal cycles in each year from 1994 to 1996. In 1994, exotic striped bass (Morone saxatilis), native longfin smelt (Spirinchus thaleichthys), and exotic yellow
Authors
William A. Bennett, Wim J. Kimmerer, Jon R. Burau
Hydrodynamic field study of a shallow estuarine subembayment, Sherman Lake, California
Sherman Lake, California, has two hydrodynamically distinct regions: a tidally forced jet located along the eastern flank that creates an important hydraulic connection between the Sacramento and San Joaquin Rivers, and a relatively quiescent area in the west. The forcing mechanisms driving circulation and transport are spatially variable in Sherman Lake, a characteristic, we are finding, that is
Authors
C.A. Ruhl, J.R. Burau, R.N. Oltmann
Tidal asymmetry and variability of bed shear stress and sediment bed flux at a site in San Francisco Bay, USA
The relationship between sediment bed flux and bed shear stress during a pair of field experiments in a partially stratified estuary is examined in this paper. Time series of flow velocity, vertical density profiles, and suspended sediment concentration were measured continuously throughout the water column and intensely within 1 meter of the bed. These time series were analyzed to determine bed s
Authors
Matthew L. Brennan, David H. Schoellhamer, Jon R. Burau, Stephen G. Monismith
Structure and flow-induced variability of the subtidal salinity field in northern San Francisco Bay
The structure of the salinity field in northern San Francisco Bay and how it is affected by freshwater flow are discussed. Two datasets are examined: the first is 23 years of daily salinity data taken by the U.S. Bureau of Reclamation along the axis of northern San Francisco Bay; the second is a set of salinity transects taken by the U.S. Geological Survey between 1988 and 1993. Central to this pa
Authors
Stephen G. Monismith, Wim Kimmerer, Jon R. Burau, Mark T. Stacey
Effects of tidal current phase at the junction of two straits
Estuaries typically have a monotonic increase in salinity from freshwater at the head of the estuary to ocean water at the mouth, creating a consistent direction for the longitudinal baroclinic pressure gradient. However, Mare Island Strait in San Francisco Bay has a local salinity minimum created by the phasing of the currents at the junction of Mare Island and Carquinez Straits. The salinity min
Authors
John C. Warner, David H. Schoellhamer, Jon Burau, Geoffrey Schladow
Creation of residual flows in a partially stratified estuary
The creation of residual flows in estuaries is examined using acoustic Doppler current profiler data sets from northern San Francisco Bay. The data sets are analyzed using principal component analysis to examine the temporal variability of the flows which create the residual circulation. It is seen that in this periodically and partially stratified estuary the residual flows are created through a
Authors
M.T. Stacey, J.R. Burau, Stephen G. Monismith
Hydrodynamic and suspended-solids concentration measurements in Suisun Bay, California, 1995
Sea level, current velocity, water temperature, salinity (computed from conductivity and temperature), and suspended-solids data collected in Suisun Bay, California, from May 30, 1995, through October 27, 1995, by the U.S. Geological Survey are documented in this report. Data were collected concurrently at 21 sites. Various parameters were measured at each site. Velocity-profile data were collecte
Authors
Jay I. Cuetara, Jon R. Burau, David H. Schoellhamer
Recent research on the hydrodynamics of the Sacramento - San Joaquin River Delta and north San Francisco Bay
This article presents an overview of recent findings from hydrodynamic research on circulation and mixing in the Sacramento-San Joaquin Delta (Delta) (Figure 1) and North San Francisco Bay (North Bay) (Figure 2). For the purposes of this article, North Bay includes San Pablo Bay, Carquinez Strait, and Suisun Bay. The findings presented are those gained from field studies carried out by the U.S. Ge
Authors
Jon R. Burau, Stephen G. Monismith, Mark T. Stacey, Richard N. Oltmann, Jessica Lacy, David H. Schoellhamer
Observations of turbulence in a partially stratified estuary
The authors present a field study of estuarine turbulence in which profiles of Reynolds stresses were directly measured using an ADCP throughout a 25-h tidal day. The dataset that is discussed quantifies turbulent mixing for a water column in northern San Francisco Bay that experiences a sequence of states that includes a weak ebb and flood that are stratified, followed by a strong, and eventually
Authors
M.T. Stagey, Stephen G. Monismith, J.R. Burau
Measurements of Reynolds stress profiles in unstratified tidal flow
In this paper we present a method for measuring profiles of turbulence quantities using a broadband acoustic doppler current profiler (ADCP). The method follows previous work on the continental shelf and extends the analysis to develop estimates of the errors associated with the estimation methods. ADCP data was collected in an unstratified channel and the results of the analysis are compared to t
Authors
M.T. Stacey, Stephen G. Monismith, J.R. Burau