Search
Now showing items 4061-4070 of 4081
Development of an autonomous vertical profiler for oceanographic studies
(Allied, 2007)
The variations in oceanic variables that influence global climate, hypoxia in freshwater reservoirs and in coastal waters as in the west coast of India, the rise of harmful algal blooms are amongst current problems that ...
Control of the Maya AUV in the vertical and horizontal planes: Theory and practical results
(Institute for Systems and Robotics, 2007)
The paper describes the design and testing of the depth and heading autopilots for a small Autonomous Underwater Vehicle (AUV) named Maya. Control system design is done using the LQ (Linear-Quadratic) optimization technique ...
Miniature sonar for obstacle detection on samll AUV Maya
(Allied, 2007)
Autonomous platforms are increasingly able to collect in-situ data with least disturbance to the parameters under measurements. To attain high level of autonomy they need to posses capabilities to detect and avoid obstacles ...
Experience with Downward-looking Aerial Microwave Radar Based Sea-level Gauges deployed along Indian Coasts and Islands
(Intergovernmental Oceanographic Commission of UNESCO, Paris, 2016)
Subsequent to the disastrous December 2004 Indian Ocean tsunami event, near real-time reporting integrated coastal observation network (ICON) providing sea-level, sea-state and surface meteorological information has been ...
Installation and operation manual on sea level gauge (Model: NIO_Ghana_2004)
(National Institute of Oceanography, India, 2004)
NIO sea level gauge is a pressure-based gauge that operates on 12 volts battery. The pressure-sensing element used in this gauge is a piezo-resistive programmable semiconductor transducer that provides pressure samples in ...
The detection of annual hypoxia in a low latitude freshwater reservoir in Kerala, India, using the small AUV Maya
(Marine Technology Society, 2009)
The Idukki Reservoir at an altitude of 748 m covering an area of 53 km sup(2) is surrounded by tropical forests in the Western Ghats in the southwestern Indian state of Kerala. We used the small autonomous underwater vehicle ...
Observed thermohaline structure and cooling of Kochi backwaters and adjoining southeastern Arabian Sea
(Current Science Association, 2009)
Thermohaline structure of Kochi backwaters under fair and rough weather conditions has been examined along with thermal structure of two open-ocean islands in the adjoining southeastern Arabian Sea (Kavaratti and Andrott ...
The 26 December 2004 Sumatra tsunami recorded on the coast of West Africa
(National Inquiry Services Centre, 2006)
Analysis of sea-level data obtained from the Atlantic Global Sea Level Observing System (GLOSS) sea-level station at Takoradi, Ghana, West Africa, clearly reveals a tsunami signal associated with the M sub(w) = 9.3 Sumatra ...
Mechanical design and development aspects of a small AUV - Maya
(Institute for Systems and Robotics, 2007)
This paper contains a description of the mechanical design route that was adopted in building a small AUV (Autonomous Underwater Vehicle). At the outset, it is decided to follow a set of guidelines that defined a broad set ...
Pressure gauge experiments in India
(UNESCO, 2004)
Pressure measurements made in differing turbid water bodies and turbulent clear-water bodies have led to the inference that the effective mean-depth in situ density value, Row eff, of these water bodies is less than the ...