INTMARSIS: A Real Time Seafloor Seismic Observatory

In this paper we present the current status of a marine seismometer to be deployed in the Alboran Sea in September 2016. The design consists of a seafloor unit and a surface buoy connected by a cable. This design pretends to be an alternative to OBS (Ocean Bottom Seismometer) in shallow waters (depth < 500 m). In contrast to OBS, a physical connection between the seafloor unit and the surface buoy allows real time data processing and offshore communication. Even though an umbilical cable seems to be the more obvious alternative, the low energetic consumption of the seafloor unit and the recent improvements in inductive communications open a very interesting new possibility using steel cables.Postprint (author's final draft

"EPS2EVG" European Project Semester a l'EPSEVG. Introducció de competències transversals en sostenibilitat als títols de Grau.

Presentació d'aquest paquet formatiu d'actuació transversal dins de l’àmbit de les enginyeries tècniques que implicarà la millora dels estudis ofertats a l’EPSEVG.Peer Reviewe

Marine Information over the Network

The objective of the present paper is to present the experience about the integration of a group of hardware/software technologies that are applied successfully in networks and systems based on TCP-IP protocol and can be used to implement distributed and data acquisition systems. In this case is resented the installation in the Oceanographic Vessel Hesperides different data acquisition and instrumentation systems to monitor and datalogging using standard communication networks. We present a TCP and UDP Humidity and Temperature server designed by our team in the framework of LabVir project. LabVir project is devoted to implement distributed measurements in marine technologies

Retirement Investing: A New Approach

This paper proposes a new approach to investing for retirement that takes advantage of recent market innovations and advances in finance theory to improve the risk/reward opportunities available to individual investors before and after retirement. The approach introduces three new elements: 1. It uses inflation-protected bonds to hedge a minimum standard of living after retirement; 2. It takes account of a person’s willingness to postpone retirement, and 3. It uses option “ladders” to lever growth in retirement income

NeXOS A1: Smart hydrophone integration into the sensor web enablement framework

The integration of marine sensors systems into marine observation platforms such as gliders, cabled observatories and smart buoys require a great deal of effort due to the lack of standardization and diversity of architectures used in marine technologies. The NeXOS project addresses this issue proposing the adoption of the SEISI architecture (Smart Electronic Interface for Sensor Interoperability). This paper presents a case of use of this architecture, integrating the A1 Hydrophone developed within the NeXOS into a Smart Buoy using the OGC Sensor Web Enablement framework.Postprint (author's final draft

Real-time seismic data from the bottom sea

An anchored marine seismometer, acquiring real-time seismic data, has been built and tested. The system consists of an underwater seismometer, a surface buoy, and a mooring line that connects them. Inductive communication through the mooring line provides an inexpensive, reliable, and flexible solution. Prior to the deployment the dynamics of the system have been simulated numerically in order to find optimal materials, cables, buoys, and connections under critical marine conditions. The seismometer used is a high sensitivity triaxial broadband geophone able to measure low vibrational signals produced by the underwater seismic events. The power to operate the surface buoy is provided by solar panels. Additional batteries are needed for the underwater unit. In this paper we also present the first results and an earthquake detection of a prototype system that demonstrates the feasibility of this concept. The seismometer transmits continuous data at a rate of 1000 bps to a controller equipped with a radio link in the surface buoy. A GPS receiver on the surface buoy has been configured to perform accurate timestamps on the seismic data, which makes it possible to integrate the seismic data from these marine seismometers into the existing seismic network.Peer ReviewedPostprint (published version

A multilayer service data acquisition and operation system for oceanographic ships and instrumentation networks

A new Data Acquisition and Operation System for Oceanographic ships and Instrumentation Networks has been developed by the Marine Technology Unit of the Spanish Research Vessels for their networked remote acquisition platforms. The new system built over LABVIR project background follows a Service Oriented Architecture to allow expandable access to acquired data in real time and to archived data. Several Data layers are implemented to allow data access from the more common tools and formats used in marine sciences.Peer Reviewe