Underwater Glider Networks for Adaptive Ocean Sampling

2003 ◽  
Author(s):  
Naomi Leonard ◽  
Clarence Rowley ◽  
Jerrold Marsden
Keyword(s):  
Underwater Glider ◽  
Ocean Sampling

scholarly journals Underwater Glider Reliability and Implications for Survey Design

2014 ◽  
Vol 31 (12) ◽  
pp. 2858-2870 ◽  
Author(s):  
Mario Brito ◽  
David Smeed ◽  
Gwyn Griffiths
Keyword(s):  
Survey Design ◽  
Underwater Glider ◽  
Risk Profiles ◽  
Underwater Gliders ◽  
Sampling Network ◽  
Significant Difference ◽  
Hard Evidence ◽  
Ocean Sampling

Abstract It has been 20 years since the concept of the Autonomous Ocean Sampling Network (AOSN) was first introduced. This vision has been brought closer to reality with the introduction of underwater gliders. While in terms of functionality the underwater glider has shown to be capable of meeting the AOSN vision, in terms of reliability there is no communitywide hard evidence on whether persistent presence is currently being achieved. This paper studies the reliability of underwater gliders in order to assess the feasibility of using these platforms for future AOSN. The data used are taken from nonunderwater glider developers, which consisted of 205 glider deployments by 12 European laboratories between 2008 and 2012. Risk profiles were calculated for two makes of deep underwater gliders; there is no statistically significant difference between them. Regardless of the make, the probability of a deep underwater glider surviving a 90-day mission without a premature mission end is approximately 0.5. The probability of a shallow underwater glider surviving a 30-day mission without a premature mission end is 0.59. This implies that to date factors other than the energy available are preventing underwater gliders from achieving their maximum capability. This reliability information was used to quantify the likelihood of two reported underwater glider surveys meeting the observation needs for a period of 6 months and to quantify the level of redundancy needed in order to increase the likelihood of meeting the observation needs.

Coordinated control of an underwater glider fleet in an adaptive ocean sampling field experiment in Monterey Bay

2010 ◽  
Vol 27 (6) ◽  
pp. 718-740 ◽  
Author(s):  
Naomi E. Leonard ◽  
Derek A. Paley ◽  
Russ E. Davis ◽  
David M. Fratantoni ◽  
Francois Lekien ◽  
...  
Keyword(s):  
Field Experiment ◽  
Coordinated Control ◽  
Monterey Bay ◽  
Underwater Glider ◽  
Ocean Sampling

AOSN MURI: Real-Time Oceanography with Autonomous Ocean Sampling Networks: A Center for Excellence

1999 ◽  
Author(s):  
James G. Bellingham ◽  
Henrik Schmidt ◽  
Chryssostomos Chryssostomidis
Keyword(s):  
Real Time ◽  
Ocean Sampling

scholarly journals Compact Quantum Magnetometer System on an Agile Underwater Glider

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1092
Author(s):  
Brian R. Page ◽  
Reeve Lambert ◽  
Nina Mahmoudian ◽  
David H. Newby ◽  
Elizabeth L. Foley ◽  
...  
Keyword(s):  
Test Procedure ◽  
Reduction Process ◽  
Ground Truth ◽  
Sensor Technology ◽  
Magnetic Data ◽  
Magnetic Survey ◽  
Underwater Glider ◽  
Combined System ◽  
Extended Operation ◽  
Quantum Magnetometer

This paper presents results from the integration of a compact quantum magnetometer system and an agile underwater glider for magnetic survey. A highly maneuverable underwater glider, ROUGHIE, was customized to carry an increased payload and reduce the vehicle’s magnetic signature. A sensor suite composed of a vector and scalar magnetometer was mounted in an external boom at the rear of the vehicle. The combined system was deployed in a constrained pool environment to detect seeded magnetic targets and create a magnetic map of the test area. Presented is a systematic magnetic disturbance reduction process, test procedure for anomaly mapping, and results from constrained operation featuring underwater motion capture system for ground truth localization. Validation in the noisy and constrained pool environment creates a trajectory towards affordable littoral magnetic anomaly mapping infrastructure. Such a marine sensor technology will be capable of extended operation in challenging areas while providing high-resolution, timely magnetic data to operators for automated detection and classification of marine objects.

Optimization Design for the Pressure Shell of Autonomous Underwater Glider Based on GDO Method

2013 ◽  
Vol 312 ◽  
pp. 80-84 ◽  
Author(s):  
Jin Liu ◽  
Yan Hui Wang ◽  
Yu Hong Liu ◽  
Fang Liu
Keyword(s):  
Carrying Capacity ◽  
Weight Reduction ◽  
Total Mass ◽  
Optimization Design ◽  
Underwater Robot ◽  
Underwater Glider ◽  
Effective Measure ◽  
Autonomous Underwater Glider ◽  
Ansys Workbench

Autonomous Underwater Glider (AUG) is a kind of unmanned underwater robot. Weight reduction is an effective measure to extend the duration performance and increase the carrying capacity of the AUG. In this paper, on the basis of the application of ANSYS-workbench, optimization for the structure and mass of the pressure hull of the AUG was conducted through the goal-driven optimization (GDO) method. After optimization, the total mass was reduced from 12.74 kg to 11.06 kg. The present work plays a key role for improving duration performance of AUG.

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