scholarly journals Variability of environmental factors of an eastern Mediterranean Sea river influenced coastal system

2003 ◽  
Vol 4 (1) ◽  
pp. 67 ◽  
Author(s):  
K.AR. KORMAS ◽  
A. NICOLAIDOU ◽  
M. THESSALOU-LEGAKI
Keyword(s):  
Particulate Matter ◽  
River Discharge ◽  
Eastern Mediterranean ◽  
Point Sources ◽  
Monthly Basis ◽  
Coastal System ◽  
Eastern Mediterranean Sea ◽  
Chl A ◽  
Discharge Rates ◽  
Suspended Particulate

Spercheios River discharge rates of nutrients, suspended particulate matter (SPM) and particulate organic carbon (POC) and seawater concentrations of these parameters as well as chlorophyll a(chl a) were measured in the Maliakos Gulf, Greece, on a monthly basis between 1992-1993. From all the nutrients measured, silicate showed the highest discharge rates followed by nitrate, phosphate and nitrite. The river introduced significant amounts of SPM (8.5 – 35.5 Kg d -1 ) with very low POC content (<3%). Most of the variables measured showed no gradient from the river to the outer gulf, which could be attributed to fast mixing of the incoming water. However, chl a had higher concentrations in the inner (0.3 – 4.9 Μg l -1 ) and lower in the outer gulf (0.05 – 2.5 Μg l -1 ). It is suggested that the nutrients introduced by the river are consumed faster in the inner gulf and that a number of temporal streams and non-point sources at the periphery of the gulf prevent the formation of a gradient.

The influence of river discharge and wind on Patos Lagoon, Brazil, Suspended Particulate Matter

2019 ◽  
Vol 40 (12) ◽  
pp. 4506-4525 ◽  
Author(s):  
Juliana Tavora ◽  
Elisa H. L. Fernandes ◽  
Andrew C. Thomas ◽  
Ryan Weatherbee ◽  
Carlos A. F. Schettini
Keyword(s):  
Particulate Matter ◽  
Suspended Particulate Matter ◽  
River Discharge ◽  
Patos Lagoon ◽  
Suspended Particulate

scholarly journals Hydrodynamic Aspects at Vitória Bay Mouth, ES

2014 ◽  
Vol 86 (2) ◽  
pp. 555-570 ◽  
Author(s):  
FLÁVIA A.A. GARONCE ◽  
VALÉRIA S. QUARESMA
Keyword(s):  
Particulate Matter ◽  
River Discharge ◽  
Circulation Pattern ◽  
Temporal Analysis ◽  
Hydrodynamic Behavior ◽  
Tidal Cycles ◽  
Suspended Particulate ◽  
Low Concentrations ◽  
Close Relationship ◽  
Matter Flux

Understading the hydrodynamic behavior and suspended particulated matter (SPM) transport are of great importance in port regions such as Vitória Harbor, which is located at Vitória Bay, Vitória – ES, Brazil. Vitória Bay is an estuary that has not been systematically assessed through a temporal analysis in order to identify its hydrodynamics characteristics and SPM exchange. This study aims to investigate salt and suspended particulate matter flux at the estuarine mouth of Vitória Bay by understanding the temporal variation of salinity, temperature and tidal currents within the water column and at the channel crosssection. Results showed that the estuarine mouth tended to present partial stratification periods during neap tides and little stratification in spring tides. The circulation pattern was mainly influenced by the tide, with little influence from river discharge. With regard to the SPM, the mouth of the estuary tended to show low concentrations, with the highest values occurring during the dry season. A close relationship between momentary discharge, SPM and salt fluxes was observed. Despite all the data was collected at the mouth of the estuary, the system showed an importation trend of salt in all cycles and SPM importation for three of the four studied tidal cycles. Thus, Vitoria Bay is not exporting SPM to the adjacent inner shelf.

The influence of extreme river discharge conditions on the quality of suspended particulate matter in Rivers Meuse and Rhine (The Netherlands)

2015 ◽  
Vol 143 ◽  
pp. 241-255 ◽  
Author(s):  
Timo Hamers ◽  
Jorke H Kamstra ◽  
Jos van Gils ◽  
Marcel C Kotte ◽  
Albertus GM van Hattum
Keyword(s):  
Particulate Matter ◽  
The Netherlands ◽  
Suspended Particulate Matter ◽  
River Discharge ◽  
Suspended Particulate

scholarly journals Retrieval of Suspended Particulate Matter in Inland Waters with Widely Differing Optical Properties Using a Semi-Analytical Scheme

2019 ◽  
Vol 11 (19) ◽  
pp. 2283 ◽  
Author(s):  
Nariane Bernardo ◽  
Alisson do Carmo ◽  
Edward Park ◽  
Enner Alcântara
Keyword(s):  
Remote Sensing ◽  
Optical Properties ◽  
Particulate Matter ◽  
Suspended Particulate Matter ◽  
Optical Model ◽  
Water Clarity ◽  
Average Error ◽  
Inland Waters ◽  
Chl A ◽  
Suspended Particulate

Suspended particulate matter (SPM) directly affects the underwater light field and, as a consequence, changes the water clarity and can reduce the primary production. Remote sensing-based bio-optical modeling can provide efficient monitoring of the spatiotemporal dynamics of SPM in inland waters. In this paper, we present a novel and robust bio-optical model to retrieve SPM concentrations for inland waters with widely differing optical properties (the Tietê River Cascade System (TRCS) in Brazil). In this system, high levels of Chl-a concentration of up to 700 mg/m3, turbidity up to 80 NTU and high CDOM absorption highly complicate the optical characteristics of the surface water, imposing an additional challenge in retrieving SPM concentration. Since Kd is not susceptible to the saturation issue encountered when using remote sensing reflectance (Rrs), we estimate SPM concentrations via Kd. Kd was derived analytically from inherent optical properties (IOPs) retrieved through a re-parameterized quasi-analytical algorithm (QAA) that yields relevant accuracy. Our model improved the estimates of the IOPs by up to 30% when compared to other existing QAAs. Our developed bio-optical model using Kd(655) was capable of describing 74% of SPM variations in the TRCS, with average error consistently lower than 30%.

scholarly journals The circulation of the lower Capibaribe Estuary (Brazil) and its implications for the transport of scalars

2016 ◽  
Vol 64 (3) ◽  
pp. 263-276 ◽  
Author(s):  
Carlos Augusto França Schettini ◽  
Josineide B. de Miranda ◽  
Arnoldo Valle-Levinson ◽  
Eliane C. Truccolo ◽  
Ernesto C. Domingues
Keyword(s):  
Water Quality ◽  
Particulate Matter ◽  
Metropolitan Area ◽  
River Discharge ◽  
Spring Tide ◽  
Circulation Pattern ◽  
Residual Circulation ◽  
Suspended Particulate ◽  
Poor Water Quality ◽  
Residual Transport

Abstract The Capibaribe Estuary is a water body that crosses the Recife Metropolitan Area (RMA), one of the largest population centers in Brazil, and causes large pollutant loads and poor water quality. The fresh water inflow of wastewater from the RMA can account for three times the volume of the river discharge during the low discharge period. This article assesses the hydrodynamics and potential transport of particulate and dissolved scalars in this estuary. A field experiment was conducted to record the water level, current velocity, salinity, temperature and suspended particulate matter (SPM) contents during a full semi-diurnal tidal cycle. This experiment was performed during low river discharge and spring tide conditions. The estuary showed a partially mixed circulation pattern. The residual transport of water and salt were up estuary, while the SPM residual transport was down estuary. The former were understood as the effect of the residual circulation around the islands, while the latter was interpreted as a morphological factor inducing greater resuspension during the ebb, despite the symmetrical ebb and flood currents. This mechanism may transport SPM to the inner shelf, even under tide-dominated conditions when the opposite would be expected.

Characterization of atmospheric particulate matter over the eastern Mediterranean sea

1989 ◽  
Vol 20 (8) ◽  
pp. 1241-1244 ◽  
Author(s):  
Sandro Fuzzi ◽  
Giulio Cesari ◽  
Maria Cristina Facchini ◽  
Renzo Lenaz ◽  
Axel Berner ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Mediterranean Sea ◽  
Eastern Mediterranean ◽  
Atmospheric Particulate Matter ◽  
Atmospheric Particulate ◽  
Eastern Mediterranean Sea

Spatial and seasonal variability of particulate matter optical and size properties in the Eastern Mediterranean Sea

2012 ◽  
Vol 105-108 ◽  
pp. 123-134 ◽  
Author(s):  
A.P. Karageorgis ◽  
D. Georgopoulos ◽  
T.D. Kanellopoulos ◽  
O.A. Mikkelsen ◽  
K. Pagou ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Mediterranean Sea ◽  
Seasonal Variability ◽  
Eastern Mediterranean ◽  
Eastern Mediterranean Sea

Suspended particulate matter in the western Dead Sea: Distribution and chemical composition

2002 ◽  
Vol 51 (3-4) ◽  
pp. 233-241 ◽  
Author(s):  
Barak Herut ◽  
Ittai Gavrieli ◽  
Ludwik Halicz ◽  
Gideon Tibora
Keyword(s):  
Particulate Matter ◽  
Chemical Composition ◽  
Suspended Particulate Matter ◽  
Dead Sea ◽  
Suspended Particulate
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