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Edrychwch ar ein wybodaeth ffioedd dysgu

Modiwl OSX-2005:
Remote Sensing & Geophysics

Ffeithiau’r Modiwl

Rhedir gan School of Ocean Sciences

20.000 Credyd neu 10.000 Credyd ECTS

Semester 2

Trefnydd: Dr Katrien Van Landeghem

Amcanion cyffredinol

This module is essential to scientists who acquire field data. Almost all such data need to be positioned in space. Whilst the latest satellite technology appears to make this a trivial task, there are pitfalls that in some cases have resulted in the loss of millions of dollars. Geodesy is the study of the shape of the earth, map projections, coordinate systems and geodetic datums. This is covered in the introductory section of the course. Most blunders in modern position finding arise from a lack of appreciation of geodesy-related issues.

Following this is a description to and explanation of position-fixing systems; principally satellite-based systems such as GPS, GLONASS and GALILEO.

As a continuation of the theme of spatial data, the topic of remote sensing is then presented. Remote sensing provides a synoptic view of the Earth, and here an introduction is given to the commonly-used satellite and airborne instruments to measure and monitor variability in the atmosphere and oceans. This section of the module begins with an introduction to the essential underlying physics and properties of the electromagnetic spectrum upon which all satellite systems and many airborne systems are based. This section will cover the measurement of sea surface temperature, sea surface height, sea surface roughness, wave height, ocean colour (i.e. primary productivity) and dissolved organic matter. You will also learn how these measurements are applied in monitoring sea level, locating fronts and mesoscale eddies, guiding fisheries management etc. The use of satellite data will be explored in Matlab practicals.

The final aspect of the course deals with underwater acoustic mapping - an essential tool for anyone needing to evaluate the seafloor for both conservation and exploitation. Initially a basic theoretical description of the processes involved in the field of marine acoustics is given. This aspect is reinforced by the three acoustic problem exercises. Then different aspects of acoustic surveying are dealt with in detail. These include bathymetrical surveying, sub-bottom profiling and side scan sonar. Details of the equipment, surveying methodology, data processing and data interpretation are covered for each technique. These are reinforced in the practical sessions.

NOTE: Students who are considering this module as an optional choice should bear in mind that you will be expected to solve mathematical problems as part of the assessment, but you will receive 1-2-1 help if this is a challenge.

Cynnwys cwrs

Geodesy

  • Shape of the Earth

  • The Geoid

  • Datums

  • Co-ordinate systems and transformations

  • Projections

Position fixing systems

  • GPS

  • Galileo and Glonass

  • Underwater positioning systems

Remote sensing

  • Introduction

  • Remote sensing systems

  • Corrections applied to the data

  • Processing of remote sensing data

  • Applications of instrumentation to measure sea surface height, sea surface roughness, temperature, ocean colour, dissolved organic matter

  • Handling and analysing satellite data.

Acoustic methods

  • Acoustic theory

  • Acoustic instrumentation and survey techniques

  • Applications of seafloor mapping

Meini Prawf

trothwy

Partial understanding of basic principles of geodesy, positioning, remote sensing and underwater acoustic propagation; Basic appreciation and limited understanding of the potential applications of remote sensing and acoustic techniques; Basic ability to solve numerical problems associated with acoustic propagation in the water column; Basic ability to process, present and interpret a variety of spatial data.

ardderchog

Thorough understanding of the basic principles of geodesy, positioning, remote sensing and sound propagation in ocean waters and at the sediment/water interface; Highly developed appreciation and thorough understanding of the potential applications of remote sensing and acoustic techniques in earth systems analysis, including applications in physical oceanography, marine geology and marine biology including keen ability to solve numerical problems associated with satellite design and the propagation and interactions of EM and ocean waves; Highly developed ability to solve numerical problems associated with acoustic propagation in the water column; Highly developed ability to process, present and interpret a variety of spatial data.

da

Clear understanding of the basic principles of geodesy, positioning, remote sensing and acoustic propagation; Comprehensive appreciation and clear understanding of the potential applications of remote sensing and acoustic techniques in earth systems analysis, including applications in physical oceanography, marine geology and marine biology including ability to solve numerical problems associated with satellite design and application and the propagation and interactions of EM and ocean waves; Ability to solve numerical problems associated with acoustic propagation in the water column; Ability to process, present and interpret a variety of spatial data.

Canlyniad dysgu

  1. To understand and appreciate the potential applications of acoustic techniques in underwater exploration, including applications in physical oceanography, marine geology and marine biology

  2. To understand the behaviour of EM radiation and its utility in remote sensing systems

  3. Understand datums and their significance in terms of mapping and position fixing

  4. Understand how satellite position systems work and to appreciate their accuracy limits, practical limitations and pitfalls in their use

  5. To understand how positions may be fixed in an underwater setting

  6. To have the ability to solve numerical problems associated with acoustic propagation in the water column and to process, present and interpret a variety of marine acoustic data.

  7. To appreciate satellite remote sensing as a source of oceanographic data and to have knowledge of the different of satellite sensors & their associated measurements

  8. To have an introductory capability to process and use remote sensing data

  9. To be clear about how these systems are applied in understanding earth systems

  10. To understand the basic principles of sound propagation in ocean waters and at the sediment/water interface.

Dulliau asesu

Math Enw Disgrifiad Pwysau
GWAITH CWRS Surveying Field Practical 15.00
GWAITH CWRS Acoustics 2 20.00
GWAITH CWRS Acoustics 3 20.00
ARHOLIAD Examination 40.00
GWAITH CWRS Matlab plotting session 5.00

Strategaeth addysgu a dysgu

Oriau
Fieldwork

At present, set to being optional (subject to Covid-19 restrictions at the time of running the event)

3
Private study 163
Lecture 22
Practical classes and workshops

Leads to assessments "Remote Sensing" and all "Acoustics" assessments.

12

Sgiliau Trosglwyddadwy

  • 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
  • Ymwybyddiaeth o ddiogelwch - Bod yn ymwybodol o'ch amgylchedd a hyder o ran cadw at reoliadau iechyd a diogelwch
  • Gwaith Tîm - Gallu cydweithio'n adeiladol ag eraill ar dasg gyffredin, ac/neu fod yn rhan o dîm gweithio o ddydd i ddydd

Adnoddau

Rhestrau Darllen Bangor (Talis)

http://readinglists.bangor.ac.uk/modules/osx-2005.html

Rhagofynion a Chydofynion

Rhagofynnol ar gyfer:

  • OSX-3025: Marine Geology & Applications

Cyrsiau sy’n cynnwys y modiwl hwn

Gorfodol mewn cyrsiau:

  • F650: BSC Geological Oceanography year 2 (BSC/GEO)
  • F62F: BSc Geological Oceanography year 2 (BSC/GEOF)
  • 8S54: BSc Geological Oceanography (with International Experience) year 2 (BSC/GEOIE)
  • F842: BSc Marine Geography year 2 (BSC/MARG)
  • F710: BSC Marine Environmental Studies year 2 (BSC/MES)
  • F713: BSc Marine Environmental Stud with International Experience year 2 (BSC/MESIE)
  • F79P: BSc Marine Environmental Studies year 2 (BSC/MESP)
  • F7F6: BSc Ocean and Geophysics year 2 (BSC/OGP)
  • F700: BSC Ocean Science year 2 (BSC/OS)
  • F652: MSci Geological Oceanography year 2 (MSCI/GO)
  • F734: MSci Physical Oceanography year 2 (MSCI/PO)

Opsiynol mewn cyrsiau:

  • C183: BSC Appl.Terrestrial & Marine Ec 4 year 2 (BSC/APTME)
  • C180: BSc Appl. Terrestrial &Marine Ec year 2 (BSC/ATME)
  • C184: BSc App Terrestrial & Marine Ecology with Intl Experience year 2 (BSC/ATMEIE)
  • F900: BSC Environmental Science year 2 (BSC/ES)
  • F901: BSc Environmental Science (4 yr with placement) year 2 (BSC/ES4)
  • F90F: BSc Environmental Science year 2 (BSC/ESF)
  • 8U71: BSc Environmental Science (with International Experience) year 2 (BSC/ESIE)
  • F803: BSc Geography with Environmental Forestry year 2 (BSC/GEF)
  • F804: BSc Geography with Environmental Forestry year 2 (BSC/GEF4)
  • F800: BSC Geography year 2 (BSC/GEOG)
  • F806: BSc Geography (4 yr with placement) year 2 (BSC/GEOG4)
  • F802: BSc Geography (with International Experience) year 2 (BSC/GEOGIE)
  • F840: BSc Physical Geography and Oceanography year 2 (BSC/PGO)
  • F850: Master of Environmental Science year 2 (M/ENVSCI)
  • F851: MEnvSci Environmental Science with International Experience year 2 (MENVSC/ESIE)
  • F801: MGeog Geography year 2 (MGEOG/G)
  • F805: MGeog Geography with International Experience year 2 (MGEOG/GIE)

Hafan

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