Journal ArticleDOI
Qualitative and numerical analyses of the effects of river inflow variations on mixing diagrams in estuaries
Reads0
Chats0
TLDR
In this paper, the effects of river inflow variations on alkalinity/salinity distributions in San Francisco Bay and nitrate/saline distributions in Delaware Bay are described.Abstract:
The effects of river inflow variations on alkalinity/salinity distributions in San Francisco Bay and nitrate/salinity distributions in Delaware Bay are described. One-dimensional, advective-dispersion equations for salinity and the dissolved constituents are solved numerically and are used to simulate mixing in the estuaries. These simulations account for time-varying river inflow, variations in estuarine cross-sectional area, and longitudinally varying dispersion coefficients. The model simulates field observations better than models that use constant hydrodynamic coefficients and uniform estuarine geometry. Furthermore, field observations and model simulations are consistent with theoretical ‘predictions’ that the curvature of propery-salinity distributions depends on the relation between the estuarine residence time and the period of river concentration variation.read more
Citations
More filters
Journal ArticleDOI
Conservative mixing of stable isotopes across estuarine salinity gradients: A conceptual framework for monitoring watershed influences on downstream fisheries production
TL;DR: Measuring consumer isotopes across salinity gradients should be a relatively simple way to monitor effects of watershed nutrient loading and hydrologic flushing in supporting estuarine fisheries production.
Journal ArticleDOI
Chromophoric dissolved organic matter and dissolved organic carbon in Chesapeake Bay
TL;DR: In this article, the authors report the distributions of CDOM, DOC, and chlorophyll a from seven cruises in Chesapeake Bay in 1994-1997, indicating net accumulations within the estuary, measured as absorption at 355 nm or as fluorescence.
Journal ArticleDOI
Open Water Processes of the San Francisco Estuary: From Physical Forcing to Biological Responses
Wim J. Kimmerer,San Francisco +1 more
TL;DR: A review of the current state of knowledge of the open waters of the San Francisco Estuary can be found in this paper, where the authors emphasize the conceptual foundations for our current understanding of estuarine dynamics, particularly those aspects relevant to restoration.
Book ChapterDOI
Chapter 12 – DOM in the Coastal Zone
TL;DR: In this article, a discussion on dissolved organic matter (DOM) in the coastal zone is presented, emphasizing the processes that occur in rivers and estuaries and are important to marine DOM.
Journal ArticleDOI
Multi-year distribution patterns of nutrients within the Neuse River Estuary, North Carolina
TL;DR: Spabal and temporal patterns of nutnent dlstnbutions m the Neuse h v e r Estuary, North Carol~na reflect the dominance of biolog~cal and chemical achvlty except when large freshets cause movement of water to the lower estuary and out Into Pamhco Sound.
References
More filters
Journal ArticleDOI
The chemistry of the Delaware estuary. General considerations1
Properties and circulation of San Francisco Bay waters
TL;DR: In this paper, a conceptual framework describing the physical processes which control these distributions, although still incomplete, is outlined. And the authors define the effects of river inflow in modifying water residence time, not only because inflow is perhaps the dominant agent in this modulation but also because man is able to control the inflow through massive river diversions.
Journal ArticleDOI
Variability of dissolved trace metals in the mississippi river
Alan M. Shiller,Edward A. Boyle +1 more
TL;DR: In this paper, the concentrations of eight dissolved trace metals were measured in the lower Mississippi River seven times at various flow stages during a two-year interval using trace metal sampling and analysis techniques demonstrated to be reliable.
Journal ArticleDOI
Phytoplankton production in the Delaware Estuary: temporal and spatial variability
TL;DR: In this article, the authors measured phytoplankton production in the Delaware Estuary (USA) over several seasonal cycles (1980-1985) and found that seasonal variability in daily area1 production (JP; g C m-2 dl ) was closely related to chlorophyll concentrations in the upper estuary, ranging from a maximum of 1.1 g c m-d to a minlmum of d-l.
Journal ArticleDOI
The dynamics of conservative mixing in estuaries
TL;DR: In this article, it was shown that bends in mixing plots may also result from temporal variations in end-member (river or ocean) constituent concentrations even for conservative constituents, and the use of these curves for interpretation of estuarine processes must be undertaken with an understanding of the temporal variability of the river and ocean constituents.
Related Papers (5)
Conservative behaviour of riverine dissolved organic carbon in the Severn Estuary: chemical and geochemical implications
R.F.C. Mantoura,E.M.S. Woodward +1 more