Self-cleaning data logger measurements of long-term (2002 to 2006) variation in chlorophyll a concentration in the Uwa Sea, southwestern Japan
© Aristotle University of Thessaloniki (6/2009)
We monitored long-term variation (January 2002 to November 2007) in chlorophyll a concentrations at a pearl oyster aquaculture facility in the Uwa Sea, southwestern Japan using a self-cleaning data logger. The logger enabled continuous measurements at 10 min intervals. Such high measurement frequency is not possible using previous methods, e.g., remote sensing of satellite ocean color or spectrophotometry.
© Aristotle University of Thessaloniki (6/2009)
We monitored long-term variation (January 2002 to November 2007) in chlorophyll a concentrations at a pearl oyster aquaculture facility in the Uwa Sea, southwestern Japan using a self-cleaning data logger. The logger enabled continuous measurements at 10 min intervals. Such high measurement frequency is not possible using previous methods, e.g., remote sensing of satellite ocean color or spectrophotometry.
Coastal water quality monitoring in Cyprus using satellite remote sensing
© Aristotle University of Thessaloniki (6/2009)
Knowledge of the current ecological state is of vital importance for coastal zone management. Due to the optical complexity of coastal waters compared to the open ocean, more sophisticated instruments and algorithms are needed to derive relevant variables. Satellite remote sensing allows the spatial and temporal assessment of various physical, biological and ecological parameters of water bodies on global and regional scales.
© Aristotle University of Thessaloniki (6/2009)
Knowledge of the current ecological state is of vital importance for coastal zone management. Due to the optical complexity of coastal waters compared to the open ocean, more sophisticated instruments and algorithms are needed to derive relevant variables. Satellite remote sensing allows the spatial and temporal assessment of various physical, biological and ecological parameters of water bodies on global and regional scales.
Remote sensing as an alternative tool for monitoring water consumption over agricultural areas of Cyprus
© Aristotle University of Thessaloniki (6/2009)
This paper examines and evaluates the use of satellite remote sensing for calculating crop water requirements over agricultural areas of Cyprus. The spatial distribution of water requirements can be used for water management and monitoring. For this purpose an accurate estimation of crop evapotranspiration (ET) is necessary.
© Aristotle University of Thessaloniki (6/2009)
This paper examines and evaluates the use of satellite remote sensing for calculating crop water requirements over agricultural areas of Cyprus. The spatial distribution of water requirements can be used for water management and monitoring. For this purpose an accurate estimation of crop evapotranspiration (ET) is necessary.
An integrated modeling procedure for thermal discharges into coastal waters
© Aristotle University of Thessaloniki (6/2009)
An integrated modeling procedure is presented for the calculation of the hydrodynamics and the excess temperature of coastal waters, during the discharge of cooling waters from power stations. The procedure, which consists of five steps, involves the use of two models.
© Aristotle University of Thessaloniki (6/2009)
An integrated modeling procedure is presented for the calculation of the hydrodynamics and the excess temperature of coastal waters, during the discharge of cooling waters from power stations. The procedure, which consists of five steps, involves the use of two models.
Spatio-temporal variation in water quality of Malad creek, Mumbai, India using geospatial tools
© Aristotle University of Thessaloniki (6/2009)
Presently Malad creek in west coast of Mumabi, India receives wastewater from non-point pollution sources, open drains and partially treated sewage from Malad and Versova treatment facilities. The objective of study is to assess the spatio - temporal variations of water quality parameters and level of pollution in creek during low and high tides.
© Aristotle University of Thessaloniki (6/2009)
Presently Malad creek in west coast of Mumabi, India receives wastewater from non-point pollution sources, open drains and partially treated sewage from Malad and Versova treatment facilities. The objective of study is to assess the spatio - temporal variations of water quality parameters and level of pollution in creek during low and high tides.
Geomorphologic and hydrologic analysis of Torrent Imvrassos in Samos Island, using GIS. Assessment of flooding hazard
© Aristotle University of Thessaloniki (6/2009)
This paper is focused on the geomorphologic and hydrologic analysis of one of the eight most important torrents in Samos Island – Northern Aegean Sea – called Invrassos. The aim is the assessment of the flooding hazard and its return period T, comparing empirical formulas with measured values of the flooding episode of 28th–29th of November of 2001. The threat of flooding has been high in Samos due to rough geomorphology, high precipitations and absence of effective water policy in the design and construction of appropriate anti–flooding and anti–erosion hydraulic works.
© Aristotle University of Thessaloniki (6/2009)
This paper is focused on the geomorphologic and hydrologic analysis of one of the eight most important torrents in Samos Island – Northern Aegean Sea – called Invrassos. The aim is the assessment of the flooding hazard and its return period T, comparing empirical formulas with measured values of the flooding episode of 28th–29th of November of 2001. The threat of flooding has been high in Samos due to rough geomorphology, high precipitations and absence of effective water policy in the design and construction of appropriate anti–flooding and anti–erosion hydraulic works.
Geostatistical analysis for assessing eutrophication trends: a case
study in the Strait of Lesvos, Greece
© Aristotle University of Thessaloniki (6/2009)
Available oceanographic information of the Eastern Mediterranean indicates low nutrient and primary productivity values as well as low benthic and fish biomass. However, inshore waters are strongly influenced by urbanisation and industrial activities leading to the degradation of the ecological status of the estuarine and coastal systems. In this study, water samples were collected in the coastal area of the Strait of Lesvos, Greece in July 2008 anddetermination of chlorophyll a and Dissolved Inorganic Nitrogen concentrations was performed.
© Aristotle University of Thessaloniki (6/2009)
Available oceanographic information of the Eastern Mediterranean indicates low nutrient and primary productivity values as well as low benthic and fish biomass. However, inshore waters are strongly influenced by urbanisation and industrial activities leading to the degradation of the ecological status of the estuarine and coastal systems. In this study, water samples were collected in the coastal area of the Strait of Lesvos, Greece in July 2008 anddetermination of chlorophyll a and Dissolved Inorganic Nitrogen concentrations was performed.
Modeling Nestos River plume dynamics – Validation with field observations
© Aristotle University of Thessaloniki (6/2009)
A first attempt to simulate Nestos River plume using the ELCOM model is presented in this work. The model was tested under three different discharge stages (high, moderate and low) and under various meteorological conditions.
© Aristotle University of Thessaloniki (6/2009)
A first attempt to simulate Nestos River plume using the ELCOM model is presented in this work. The model was tested under three different discharge stages (high, moderate and low) and under various meteorological conditions.
Treatment of ammonia-polluted groundwater in North Bohemian brown coal mining region
© Aristotle University of Thessaloniki (6/2009)
A feasibility study was completed to assess the applicability of two groundwater treatment technologies at the site, where a brown coal processing plant released 4000 tons of ammonia into the subsurface. The present groundwater ammonia concentration (approx. 100 ppm) was required to be reduced to 0.5 ppm to satisfy the Czech groundwater remediation directives.
© Aristotle University of Thessaloniki (6/2009)
A feasibility study was completed to assess the applicability of two groundwater treatment technologies at the site, where a brown coal processing plant released 4000 tons of ammonia into the subsurface. The present groundwater ammonia concentration (approx. 100 ppm) was required to be reduced to 0.5 ppm to satisfy the Czech groundwater remediation directives.
Land degradation due to diapirs in Iran, case study: Hableh-Rood Drainage Basin, East of Tehran
© Aristotle University of Thessaloniki (6/2009)
Different geological characteristics play role in land degradation in Iran which are: 1-The abundance of Neogene evaporitic marly formations around and in desertic depression. These units have had important role in the formation of present landforms, are saline, alkaline and erodible and degrade the quality of water resources as diffuse and widespread sources. 2- The presence of numerous diapirs, some of which are salt domes consisting of halite.
© Aristotle University of Thessaloniki (6/2009)
Different geological characteristics play role in land degradation in Iran which are: 1-The abundance of Neogene evaporitic marly formations around and in desertic depression. These units have had important role in the formation of present landforms, are saline, alkaline and erodible and degrade the quality of water resources as diffuse and widespread sources. 2- The presence of numerous diapirs, some of which are salt domes consisting of halite.
