Monitoring GNSS Infrastructure Network Dynamics

Trimble has introduced an application for monitoring the dynamics of Global Navigation Satellite System (GNSS) infrastructure networks: Trimble Integrity Manager software. In a GNSS network, movement of a reference antenna results in reduced data integrity. Antennas can shift for a variety of reasons such as tectonics, weather or simple human error. With Trimble Integrity Manager, network operators will know immediately if movement has occurred and whether action is needed.   The software provides a constant assessment of a network's quality with detailed reports, analysis and alarms to monitor the position of network antennas, giving operators key insight into the health... (read more)
2007-07-10 09:16:40

NOAA Real-time Wave Monitoring

The NOAA National Ocean Service, Center for Operational Oceanographic Products and Services (CO-OPS) has installed a real-time wave/current measurement system in the Chesapeake Bay (MD, USA) using a bottom-mounted RD Instruments ADCP to measure complete frequency-direction wave spectra along with the current profiles. The acoustic modem, with its wireless connection, is a method for data communication between the ADCP and the surface buoy, eliminating the need for underwater cables that are expensive to install and maintain. However, the huge amount of data generated from the wave measurement may pose a serious challenge to the acoustic modem's robustness and power requirement.... (read more)
2004-03-03 12:00:00

New Ball Joint Monitoring System

Nautronix delivered the first of a new system to its customer GlobalSantaFe for its vessel, Glomar Arctic III. The new Ball Joint Monitoring system integrates data from the Nautronix USBL positioning systems, in this case a RS914, and vessel data to provide a complete monitoring system. The system meets requirements put on GlobalSantaFe by their customer to provide continuous monitoring, logging and alarm capabilities for the lower ball joint, and related vessel data. The system also reads vessel pitch, roll and heave information, all of which is displayed and logged. The system also provides full monitoring capability and to view... (read more)
2004-03-25 12:00:00

Real-time Marine Monitoring Systems

Forecasting ocean and regional sea-state
The seas are being monitored, from satellite observations of the ocean surface to the growing number of in-situ measurement networks. The amount of information being generated is huge and should ideally provide a consistent 3D picture of ocean-state, including temperature fields and current structures. Indeed, this is the expectation of a wide range of organisations and individuals engaged in coastal and offshore activities, who would prefer such forecasts to be in the shape of a synoptic overview of present conditions augmented by prediction of two or three weeks. In order to merge all past information and produce a forecast, models... (read more)
2008-01-01 01:00:00

Coastal Monitoring of Water Quality

Autonomous Surveying of Shallow Coastal Waters for Clean Seas and Shorelines
The wave-propelled AutoNaut unmanned surface vessel (USV) completed a short trial off the south-west coast of England to monitor the water quality by a sewage outfall. AutoNaut demonstrated its ability to reliably operate in shallow waters whilst also recording and transmitting data. A suite of sensors aboard the USV worked in conjunction with satellite data from synthetic aperture radar (SAR). Analysis indicated that the seawater close to the outflow was not negatively affected. The combination of technologies is pioneering for the application and the trial highlights the potential of this innovative approach to conduct long-term marine monitoring – including the... (read more)
2017-08-02 11:23:28

Satellite-based Water Quality Monitoring

EOMAP, Germany, has launched a high-resolution monitoring service for inland and coastal waters, with water quality information directly accessible online through the eoApp web application. Monitoring water quality for inland and coastal waters is a requirement for many government and private sector entities, which includes identifying long-term trends and understanding emerging problems over large areas that contain numerous water bodies – all to be done in near real time. The service is supported by data from a fleet of satellite sensors and uses proprietary physics-based processing technologies. The base product suite includes water quality parameters such as turbidity, chlorophyll concentrations... (read more)
2015-06-04 09:30:00

Benefits of UAS Breakwater Monitoring

The North Sea Canal in The Netherlands connects the Port of Amsterdam with the sea. The two breakwaters at the mouth of the harbour in IJmuiden are usually monitored on displacement of basalt block by airborne Lidar and on subsidence by annual levelling of permanent points. Could a camera-equipped UAS survey conducted simultaneously with a bathymetric survey provide information of equivalent accuracy? A recent study has shown that it could: time series of 3D models of the breakwaters are useful for erosion and subsidence monitoring. By Pieter Franken, Skeye BV, The Netherlands Monitoring of the breakwaters at IJmuiden, The Netherlands,... (read more)
2014-08-05 10:45:21

Real-time Remote System Monitoring

Teledyne Benthos has released the Teledyne Gateway Buoy, which is designed to provide customers with real-time data monitoring of their subsea sensors from a remote shore station. The new gateway buoy is useful for a range of applications and incorporates the reliability of Teledyne Benthos' ATM-886 modem. The buoy is two-man deployable, uses rechargeable batteries and has a deployment life of up to two months using Freewave transmission to a shore station. "The Teledyne Gateway Buoy gives our modem family of products a flexible surface platform with internal space for specific customer options", stated Bob Melvin, Director of Engineering for... (read more)
2011-01-07 02:22:13

Real-time Marine Monitoring Systems

Forecasting ocean and regional sea-state
The seas are being monitored, from satellite observations of the ocean surface to the growing number of in-situ measurement networks. The amount of information being generated is huge and should ideally provide a consistent 3D picture of ocean-state, including temperature fields and current structures. Indeed, this is the expectation of a wide range of organisations and individuals engaged in coastal and offshore activities, who would prefer such forecasts to be in the shape of a synoptic overview of present conditions augmented by prediction of two or three weeks. In order to merge all past information and produce a forecast, models... (read more)
2008-01-01 01:00:00

Monitoring Network for Scottish Ports

Following a competitive tendering process Caledonian Maritime Assets Limited (CMAL, UK), which owns many ferries, ports and harbours in West Scotland, has procured a network of 15 tide and weather stations from instrumentation specialist OTT Hydrometry. The monitoring equipment provides live data on port conditions to enable the ferry sailing decisions to be made in a timely manner. Each monitor is located adjacent to the main berthing area on the pier with a lockable GRP control box. The system is comprised of: an OTT radar level sensor; a Lüfft ultrasonic weather monitor measuring wind speed, gust and direction, air temperature... (read more)
2015-07-06 01:50:58
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