Open-Sea Observatories: A New Technology to Bring the Pulse of the Sea to Human Awareness
| Autor: | J. F. Drogou, Yves Auffret, Ingrid Puillat, Louis Géli, Jerome Blandin, Nadine Lanteri, Jozée Sarrazin, Jean-Francois Rolin, Pierre-Marie Sarradin, Pierre Leon |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Shore
geography Engineering geography.geographical_feature_category 010504 meteorology & atmospheric sciences business.industry 010502 geochemistry & geophysics Mooring 01 natural sciences Seafloor spreading Upgrade 13. Climate action Software deployment Observatory Satellite The Internet 14. Life underwater business 0105 earth and related environmental sciences Remote sensing |
| Zdroj: | Oceanography Oceanography, Prof. Marco Marcelli (Ed.), ISBN: 978-953-51-0301-1, InTech, Available from: http://www.intechopen.com/books/oceanography/open-sea-observatories-a-new-technology-to-take-the-pulseof-the-sea-with-internet-in-the-ocean. Chap.1, pp. 3-40 |
| Popis: | Historically, observation in Marine Science was mainly based on in situ measurements made mainly over ship surveys and shore measurements. Unfortunately, ship surveys can only be episodic, and are constrained by weather and by the constant rise of ship-time cost. As the data provided by non-communicating moorings are stored in the measurement system, a ship intervention is needed to recover both the mooring and the data after several acquisition months. Further to the rather successful mediumand short-term deployment of these traditional devices, scientists have expected the development of long-term observations and permanent marine system-monitoring tools so as to gain more insight into the observed processes. By providing additional information, satellite technology can partly solve this gap between the reality and expectations. However, even though satellite images provide information over a large time frame (from minutes to years) and a wide range of spatial resolutions (from metres to thousands of kilometres), they only cover the upper layer of the sea. An Open-Sea Observatory is a complementary tool that allows one to make, in the water column and on the seafloor, long-term measurements of many environmental parameters and to acquire them in real-time, or near real-time. In addition to this real-time data transmission, these systems permit remote intervention by humans when needed, and thus can be considered as 2-way communicating devices. Because of these two characteristics, observatories are innovative systems that bring internet to the ocean and make the ocean reality visible to the human eye. According to our definition of an Open-Sea observatory, other very useful observation tools such as gliders, floats, repeated profiler transects, etc. will not be considered in this chapter to only focus on such ocean observatories. Observatory initiatives have been spreading worldwide since the 1990s. In Europe, several initiatives started twenty years ago so as to upgrade free-fall systems from the sea surface (the so-called “landers”) to make them 2-way communicating and to develop bottom |
| Databáze: | OpenAIRE |
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