World Library  

Add to Book Shelf
Flag as Inappropriate
Email this Book

Automated Gas Bubble Imaging at Sea Floor – a New Method of in Situ Gas Flux Quantification : Volume 7, Issue 1 (09/02/2010)

By Thomanek, K.

Click here to view

Book Id: WPLBN0003988395
Format Type: PDF Article :
File Size: Pages 44
Reproduction Date: 2015

Title: Automated Gas Bubble Imaging at Sea Floor – a New Method of in Situ Gas Flux Quantification : Volume 7, Issue 1 (09/02/2010)  
Author: Thomanek, K.
Volume: Vol. 7, Issue 1
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


APA MLA Chicago

Zielinski, O., Sahling, H., Thomanek, K., & Bohrmann, G. (2010). Automated Gas Bubble Imaging at Sea Floor – a New Method of in Situ Gas Flux Quantification : Volume 7, Issue 1 (09/02/2010). Retrieved from

Description: University of Applied Sciences Bremerhaven, An der Karlstadt 8, 27568 Germany. Photo-optical systems are common in marine sciences and have been extensively used in coastal and deep-sea research. However, due to technical limitations in the past photo images had to be processed manually or semi-automatically. Recent advances in technology have rapidly improved image recording, storage and processing capabilities which are used in a new concept of automated in situ gas quantification by photo-optical detection. The design for an in situ high-speed image acquisition and automated data processing system is reported (Bubblemeter). New strategies have been followed with regards to back-light illumination, bubble extraction, automated image processing and data management. This paper presents the design of the novel method, its validation procedures and calibration experiments. The system will be positioned and recovered from the sea floor using a remotely operated vehicle (ROV). It is able to measure bubble flux rates up to 10 L/min with a maximum error of 33% for worst case conditions. The Bubblemeter has been successfully deployed at a water depth of 1023 m at the Makran accretionary prism offshore Pakistan during a research expedition with R/V Meteor in November 2007.

Automated gas bubble imaging at sea floor – a new method of in situ gas flux quantification

Agrawal, Y. C. and Pottsmith, H. C.: Autonomous Long-Term in situ Particle Sizing Using A New Laser Diffraction Instrument, OCEANS, 5, 1575–1580, 1989.; Belcher, E. O.: Quantification of Bubbles Formed in Animals and Man During Decompression, IEEE Trans. Biomed. Eng. 27, 330–338, 1980.; Brauer, H.: Grundlagen der Einphasen- und Mehrphasenströmungen, Verlag Sauerländer, Aarau und Frankfurt am Main, 1971.; Brauer, H.: Turbulenzen in mehrphasigen Strömungen, Chem.-Ing.-Tech., 51, 934–948, 1979.; Boetius, A., Ravenschlag, K., Schubert, C. J., Rickert, D., Widdel, F., Gieseke, A., Amann, R., Jørgensen, B. B., Witte, U., and Pfannkuche, O.: A marine microbial consortium apparently mediating anaerobic oxidation of methane, Nature, 407, 623–626, 2000.; Canny, J. 1986. A Computational Approach to Edge Detection. IEEE Trans. Pattern Analysis and Machine Intelligence. 22: 679-698.; Deane, G. D. and Stokes, M. D.: Scale dependence of bubble creation mechanisms in breaking waves, Nature, 418, 839–844, 2002.; Deckwer, W.-D.: Reaktionstechnik in Blasensäulen, Otto Salle Verlag, Frankfurt am Main und Verlag Sauerländer, Aarau, 1985.; de Vries, A. W. G., Biesheuvel, A., and van Wijngaarden, L.: Notes on the path and wake of a gas bubble rising in pure water, Int. J. of Multiphase Flow, 28, 1823–1835, 2002.; Eisma, D., Schuhmacher, T., Boekel, H., van Heerwaarden, J., Franken, H., Laan, M., Vaars, A., Eijgenraam, F., and Kalf, J.: A camera and image-analysis system for in situ observation of flocs in natural waters, Neth. J. Sea Res., 27, 43–56, 1990.; Foucher, J.-P. and Klages, M.: Methane discharge from a deep-sea submarine mud volcano into the upper water column by gas hydrate-coated methane bubbles, Earth Planet. Sci. Lett., 243, 354–365, 2006.; Judd, A. G.: Natural seabed gas seeps as sources of atmospheric methane, Environ. Geol., 46, 988–996, 2004.; Greinert, J. and Nützel, B.: Hydroacoustic experiments to establish a method for the determination of methane bubble fluxes at cold seeps, Geo. Mar. Lett., 24, 75–85, 2004.; Haberman, W. L. and Morton, R. K.: An experimental investigation of the drag and shape of air bubbles rising in various liquids. Report 802, Navy Dept., David W. Taylor Model Basin, 68 Washington DC, 1953.; Hornafius, J. S., Quigley, D., and Luyendyk, B. P.: The world's most spectacular marine hydrocarbon seeps (Coal Oil Point, Santa Barbara Channel, California): Quantification of emissions, J. Geophys. Res., 104, 20703–20711, 1999.; Karpen, V., Thomsen, L., and Suess, E.: A new ,schlieren' technique application for fluid flow visualization at cold seep sites, Mar. Geol., 204, 145–159, 2004.; Lamarre, E. and Melville, W. K.: Instrumentation for the measurement of void-fraction in breakingwaves: Laboratory and field results, IEEE J. Oceanic Eng., 17, 204–215, 1992.; Leighton, T. G., Ramble, D. G., Phelps, A .D., Morfey, C. L., and Harris, P. P.: Acoustic detection of gas bubbles in a pipe, Acta Acustica, 84, 801–814, 1998.; Leifer, I., and Patro, R. K.: The bubble mechanism for methane transport from the shallow sea bed to the surface: A review and sensitivity study, Cont. Shelf Res., 22, 2409–2428, 2002.; Leifer, I., De Leeuw, G., Cohen, L. H., and Kunz, G.: Calibrating optical bubble size by the displaced mass method, Chem. Eng. Sci., 58, 5211–5216, 2003.; Leifer, I. and MacDonald, I.: Dynamics of the gas flux from shallow gas hydrate deposits: interaction between oily hydrate bubbles and the oceanic environment, Earth Planet. Sci. Lett., 210, 411–424, 2003.; Leifer, I. and Boles, J.: Measurement of marine hydrocarbon seep flow through fractured rock and unconsolidated sediment, Mar. Pet. Geol., 22, 551–568, 2005.; MacKay, R. S. and Rubisson, J. R.: Decompression studies using ultrasonic imaging of bubbles, IEEE Trans. Biomed. Eng., 25, 537–544, 1978.; McGinnis, D. F., Greinert, J., Artemov, Y., Beaubien, S. E., Wüest, A.: Fate of rising methane bubbles in stratified waters: How much methane reaches the atmosp


Click To View

Additional Books

  • Observations of Water Masses and Circula... (by )
  • Numerical Simulation and Decomposition o... (by )
  • Laminar and Weakly Turbulent Oceanic Gra... (by )
  • Dynamics of Turbulent Western Boundary C... (by )
  • Detecting Marine Hazardous Substances an... (by )
  • Ocean State Indicators from Myocean Alti... (by )
  • Manifestation of Two Meddies in Altimetr... (by )
  • Deep Drivers of Mesoscale Circulation in... (by )
  • Phytoplankton Distribution and Nitrogen ... (by )
  • Internal Tides and Energy Fluxes Over Gr... (by )
  • A Study on Distribution of Chlorophyll-A... (by )
  • Enso Components of the Atlantic Multidec... (by )
Scroll Left
Scroll Right


Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.