Rhedir gan School of Ocean Sciences

20.000 Credyd neu 10.000 Credyd ECTS

Semester 1

Trefnydd: Dr Dei Huws

This module will give students both a theoretical background in and practical experience of the acquisition, processing and analysis of oceanographic and geophysical data:

• Students will be familiarised with various marine geo-acoustic techniques as a means of remotely sensing the (sub-)seabed. They will join the Research Vessel Prince Madog to collect a suite of data sets themselves. Students will gain experience with specialised software packages to process the data, integrate the various sources of information and to map / visualise this to a high standard. They will analyse and discuss the marine geological processes that have shaped the area of investigation.
• Students will be taught to understand and write tender documents in relation to geophysical offshore site investigations.

Practical experience gained of

• Geophysical surveying: sidescan sonar, sub-bottom profiling and sediment coring/sampling, acoustic core logging
• Offshore data processing, data integration, report writing and scientific discussion on geological processes
• Geographical Information System (GIS) software and Sub-bottom seismic interpretation software

Classroom activities:

• Short course on GIS, geodesy and positioning
• Short course on ocean acoustics
• Short course on marine geoacoustics

trothwy

Performs only the basic processing necessary to display the survey data (small boat and Prince Madog survey). Little or no wider interpretation or critical appraisal of the techniques employed. No consideration of the errors associated with the data. Tender document reveals only the barest ideas of how to address the offshore site investigation problem given.

da

Performs most of the processing necessary to display the survey data in the most meaningful way (small boat and Prince Madog survey). Some attempt at interpretation and critical appraisal of the techniques employed. Consideration of the errors associated with the data, but incomplete appreciation of the implications of such errors. Tender document reveals competency in terms of addressing the offshore site investigation problem given.

ardderchog

Performs all the processing necessary to display the survey data and does so in novel ways. Wide ranging interpretation and thorough critical appraisal of the techniques employed. Consideration of the errors associated with the data and an appreciation of the implications of such errors to the final outcomes of the survey. Tender document reveals thorough competency in terms of addressing the offshore site investigation problem given.

1. To conduct a range of Oceanographic and Geoscience surveys from the point of acquisition to the reporting stage.

2. To process and interpret the data sets acquired, via an integrated Geographic Information System

3. To critically analyse the underpinning acoustic theory and models used for interpretation

4. To write a technical specification in relation to geophysical offshore site investigation.

Math	Enw	Disgrifiad	Pwysau
	GIS exercise		25.00
	Time-lapse bathymetry exercise		25.00
	Site investigation planning		25.00
	Prince Madog survey report		25.00

		Oriau
Workshop	Workshops on GIS, (time-lapse) bathymetry, sub-bottom profiling and side scan sonar interpretation	18
Lecture	Lectures on Geodesy/Positioning 3 hours. Lectures on GIS 2 hours. Introduction to ocean acoustics 5 hours. Oceanographic instrumentation 4 hours. Marine Geo-acoustics 10 hours.	24
Fieldwork	Fieldwork on Prince Madog: 1 day	8
Private study	Learning and preparing assessments	147
Seminar	Seminars – external speakers from industry	3

• Llythrennedd - Medrusrwydd mewn darllen ac ysgrifennu drwy amrywiaeth o gyfryngau
• Rhifedd - Medrusrwydd wrth ddefnyddio rhifau ar lefelau priodol o gywirdeb
• Defnyddio cyfrifiaduron - Medrusrwydd wrth ddefnyddio ystod o feddalwedd cyfrifiadurol
• Hunanreolaeth - Gallu gweithio mewn ffordd effeithlon, prydlon a threfnus. Gallu edrych ar ganlyniadau tasgau a digwyddiadau, a barnu lefelau o ansawdd a phwysigrwydd
• Archwilio - Gallu ymchwilio ac ystyried dewisiadau eraill
• Adalw gwybodaeth - Gallu mynd at wahanol ac amrywiol ffynonellau gwybodaeth
• Sgiliau Rhyngbersonol - Gallu gofyn cwestiynau, gwrando'n astud ar atebion a'u harchwilio
• Dadansoddi Beirniadol & Datrys Problem - Gallu dadelfennu a dadansoddi problemau neu sefyllfaoedd cymhleth. Gallu canfod atebion i broblemau drwy ddadansoddiadau ac archwilio posibiliadau
• Ymwybyddiaeth o ddiogelwch - Bod yn ymwybodol o'ch amgylchedd a hyder o ran cadw at reoliadau iechyd a diogelwch
• Cyflwyniad - Gallu cyflwyno gwybodaeth ac esboniadau yn glir i gynulleidfa. Trwy gyfryngau ysgrifenedig neu ar lafar yn glir a hyderus.
• Gwaith Tîm - Gallu cydweithio'n adeiladol ag eraill ar dasg gyffredin, ac/neu fod yn rhan o dîm gweithio o ddydd i ddydd
• Mentora - Gallu cefnogi, helpu, arwain, ysbrydoli ac/neu hyfforddi eraill
• Rheloaeth - Gallu defnyddio, cydlynu a rheoli adnoddau (dynol, ffisegol ac/neu ariannol)
• Dadl - Gallu cyflwyno, trafod a chyfiawnhau barn neu lwybr gweithredu, naill ai gydag unigolyn neu mewn grwˆp ehangach
• Hunanymwybyddiaeth & Ystyried - Bod yn ymwybodol o'ch cryfderau, gwendidau, nodau ac amcanion eich hun. Gallu adolygu ,cloriannu a myfyrio'n rheolaidd ar eich perfformiad eich hun ac eraill.

• Consider issues from a range of interdisciplinary perspectives.

Rhestrau Darllen Bangor (Talis)

http://readinglists.bangor.ac.uk/modules/osx-4407.html

Rhestr ddarllen

• Reynolds, 2011. An Introduction to Applied and Environmental Geophysics. (2nd Edition). Wiley-Blackwell
• Willie, P. C. 2005. Sound Images of the Ocean in Research and Monitoring. Springer
• Great start: "Intro to Underwater Acoustics" by Lurton 2010: Chapter 2
• Perfect overview paper: Jacobsson et al., 2016. Mapping submarine glacial landforms using acoustic methods. From: Dowdeswell, J. A., Canals, M., Jakobsson, M., Todd, B. J., Dowdeswell, E. K. & Hogan, K. A. (eds) 2016. Atlas of Submarine Glacial Landforms: Modern, Quaternary and Ancient. Geological Society, London, Memoirs, 46, 17– 40, http://doi.org/10.1144/M46.182 This is downloadable from: http://nora.nerc.ac.uk/id/eprint/513824/1/Jakobsson.pdf
• Wölfl et al., 2019: Seafloor Mapping – The Challenge of a Truly Global Ocean Bathymetry: https://www.frontiersin.org/articles/10.3389/fmars.2019.00283/full

Gorfodol mewn cyrsiau:

• F652: MSci Geological Oceanography year 4 (MSCI/GO)