coastal monitoring Articles
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HF Radar WERA Application for Ship Detection and Tracking
High-Frequency (HF) radars are operated in the 3-30 MHz frequency band and are known to cover ranges up to several hundred kilometers. Low power HF radar systems have been developed especially for oceanographic applications. They use electromagnetic surface wave propagation along the salty ocean. The WERA HF radar system transmits an average power of 30 watts but it achieves detection ranges up ...
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UW team sending autonomous surfboard to explore Antarctic waters
This week, a surfboard arrived in Antarctica. Not only was it missing a surfer, but the unique board was covered in parts that let it move independently and measure the surrounding seawater. The University of Washington project will first use the Wave Glider to investigate the summer conditions near Palmer Station on the Antarctic Peninsula, to better understand how the warming ocean interacts ...
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Regional-scale monitoring of coastal contamination. Nutrients and heavy metals in estuarine sediments and organisms on the coast of Galicia (northwest Spain)
We determined background levels of heavy metals in sediments and biota of estuarine environments and nutrient reference levels in sediments of the Galician coast. This region is characterised by having ria-type estuaries. The determination of these levels, which were affected by the geological heterogeneity of the area, was the basis that let us evaluate the contamination status of this coast. ...
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How to ensure real-time access to Antarctic tide data
One of the most important challenges, when designing monitoring facilities in remote locations, is resilience. Remote tide gauge systems operate in extremely harsh environments and require robust communications systems that almost never fail and are capable of storing large amounts of data locally as extra protection for data. Scientists from the National Oceanography Centre (NOC) are ...
By OTT HydroMet
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The Changing Faces of Europe`s Coastal Areas
Executive Summary This report provides information on the state of the environment in the coastal areas of Europe, and provides evidence of the need for a more integrated, long-term approach. Since 1995, concern about the state of Europe's coastline has led to a number of EU initiatives, which build on the concept of integrated coastal zone management (ICZM). ICZM attempts to balance the needs ...
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Remote Ocean Sensing by HF Radar
Coastal radar has become an increasingly important monitoring tool for hazard management and environmental protection During the past few years remote ocean sensing by HF (highfrequency) radar has become more and more valuable to modern coastal management. lt offers an insight into the dynamics of the coastal seas for a variety of applications without ever leaving dry land. For example, search ...
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USGS, NASA Study Finds Widespread Coastal Land Losses from Gulf Oil Spill
A new USGS-NASA study found widespread shoreline loss along heavily oiled areas of Louisiana's coast after the 2010 BP Deepwater Horizon oil spill and compared the erosion from the spill with coastal changes Hurricane Isaac caused in 2012. A pattern of dramatic, widespread shoreline loss along Louisiana’s coast caused by the 2010 BP Deepwater Horizon oil spill has been revealed by a ...
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A Guide to Thermistor Strings
What are thermistor strings? A thermistor, coined from “thermal” and “resistor”, is a sensor that changes resistance based upon temperature. It is used to measure temperatures within a specified range by using calibration tables to convert from resistance to temperature. Thermistor strings are cables with integrated thermistors, usually pressed into a bead-like node ...
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The variation of stygofauna along a gradient of salinization in a coastal aquifer
We examined the variation of stygofauna composition collected in wells, along a gradient in groundwater salinity/conductivity in a coastal aquifer from southern Portugal. The studied coastal aquifer is considered vulnerable to salinization due to seawater intrusion, caused by overexploitation of the aquifer. Knowing the response of the stygofauna species to present levels of groundwater ...
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Groundwater and stream E. coli concentrations in coastal plain watersheds served by onsite wastewater and a municipal sewer treatment system
The goal of this study was to determine if onsite wastewater treatment systems (OWS) were influencing groundwater and surface water Escherichia coli concentrations in a coastal plain watershed. Piezometers for groundwater monitoring were installed at four residences served by OWS and five residences served by a municipal wastewater treatment system (MWS). The residences were located in two ...
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Water Quality Monitoring Solutions for Industrial Wastewater
Coftec are leaders in the supply water quality monitoring solutions for industrial wastewater. Process water quality is often extreme in its composition, for example high in acids, solids and other parameters or radically changing temperature. Coftec designs, builds and if required, operate solutions for the managing industrial wastewater streams. We can offer the spectro::lyser titanium pro and ...
By Coftec
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Freshwater Stream Invertebrates: Response to Water Quality Impairment and Physical Habitat Alteration
Summary Results of three large-scale regional benthic macroinvertebrate monitoring programs from Los Angeles, Orange, and San Diego counties were analyzed. Benthic community quality was quantified using a southern California IBI and was compared to the physical habitat quality scores of each monitoring reach. The purpose of the comparison was to determine if physical habitat quality was a ...
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Multi‐media screening of contaminants of emerging concern (CECs) in coastal urban watersheds in Southern California (USA)
To examine the occurrence and fate of contaminants of emerging concern (CECs) and inform future monitoring of CECs in coastal urban waterways, water, sediment and fish tissue samples were collected and analyzed for a broad suite of pharmaceuticals and personal care products (PPCPs), commercial/household chemicals, current use pesticides and hormones in an effluent‐dominated river and multiple ...
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Mass Spectrometers for Dissolved Species Analysis Applications
Flow-Through Dissolved Species Probe – The Flow-Through Probe is directly mounted on the MS with two ports to allow flow from an external reservoir. It is used for a wide range of dynamic applications. Denitrification Probe – Flow-through probe with a low flow design for denitrification studies. Micro-flow Inlet – Flexible capillary inlet for OEMS, on-line electrochemical MS, ...
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Specificity of a defined substrate method used to monitor balneability of tropical coastal waters impacted by polluted stormwater
Defined substrate (DS) is an alternative technique to monitoring the water quality based on species-specific enzyme activity. Although more sensitive and more specific than traditional media, there is some controversy over use in the warmer waters of tropical and subtropical environments, rich in organic matter and microorganism groups capable of interfering with results. The aim of this study ...
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water quality monitoring system using iot
water quality monitoring system using iot Water quality is critical to biodiversity and life on our planet, so understanding key water indicators and their parameters is key. Water quality is one of the most important indicators of health in an ecosystem. High-quality water sustains life for humans, wildlife and marine life and is a key element in maintaining biodiversity Water pollution is ...
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Will Rio+20 commit to protecting the oceans?
Promises made at previous summits have not delivered enough protection for the oceans — campaigners are pushing for better results from Rio+20, writes Prime Sarmiento. This month, scientists, campaigners and many developing nations are optimistic they will set in motion a deal on the conservation of the high seas at Rio+20 (UN Conference on Sustainable Development) in Brazil. They argue ...
By SciDev.Net
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Ocean science for sustainable development: Facts and figures
Sarah Grimes explores why we need good ocean monitoring, how to get it, and why it still fails Small Island Developing States. Oceans are a critically important component of the Earth system, supporting ecosystem and human health. They regulate the weather and climate; are essential for producing freshwater; and soak up carbon. They also provide food and other resources, trade and migration ...
By SciDev.Net
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