Modiwl OSX-2011:
Ice and Oceans

Ffeithiau’r Modiwl

Rhedir gan School of Ocean Sciences

20 Credyd neu 10 Credyd ECTS

Semester 1

Trefnydd: Dr Margot Saher

Amcanion cyffredinol

  1. To understand the different sources and types of ice found in contact with the ocean.
  2. To provide a descriptive understanding of the physics underlying the accumulation, decay, flow, erosive potential, and sedimentation processes associated with glaciers terminating on land and in the ocean.
  3. To understand the way in which glaciers and ice sheets register and preserve proxy climate data.
  4. To understand the role of glaciers, ice sheets and sea ice, and their interactions with the ocean, in the global climate system at the present day, in the past and in the future, including forcing of ocean circulation and controls of sea level.
  5. To appreciate the distinctive differences between physical systems operating in the Arctic and Southern oceans.

Cynnwys cwrs

Glaciology: glaciers on the earth's surface; scale and forms. Ice accumulation and ablation; glacier mass balance. Glacier thermal regime. Ice flow/movement. Processes of glacial erosion, sediment entrainment/transport and deposition on land and in the ocean.

Ice sheets as archives of past climate change. Ice core records.

Control of sea-level by glaciers. The glacio-eustatic mechanism, glacio-hydro-isostasy, ice-water gravitational attraction.

High latitude physical oceanography: the generation of deep-cold, bottom water masses (NADW, AABW) and their influence on Northern Atlantic, Southern Ocean and the general circulation of the oceans. The circulation of the Southern, Arctic and North Atlantic oceans.

Terrestrial ice in the ocean: ice shelves, ice tongues, icebergs and their role in deposition and sediment reworking. Tidewater glaciers and fjords. Grounding line fans, glacial debris flows, trough mouth fans, slumps and slides. Glacial geology of the Polar North Atlantic. Icebergs and iceberg scour. Ecology and palaeoecology of glacimarine environments. Criteria used to identify glacimarine environments. Ice-rafted detritus in deep marine sediments.

The module will embed 1. a Field Excursion to Snowdonia and the Llyn Peninsula to examine glacigenic landforms and sediments, and 2. desk-top study related to ice-ocean interactions and IPCC (Intergovernmental Panel on Climate Change) 2013.

Meini Prawf

trothwy

Demonstrating a basic understanding of different forms of ice in, and in contact with, the ocean, glacier physics, flow, processes of erosion and deposition (on land, in lakes and in the ocean), glacial and glacimarine sediments and sedimentation, ice as a climate archive, and the interactions between the cryosphere and other components of the climate system.

da

Demonstrating a good understanding of different forms of ice in, and in contact with, the ocean, glacier physics, flow, processes of erosion and deposition (on land, in lakes and in the ocean), glacial and glacimarine sediments and sedimentation, ice as a climate archive, and the interactions between the cryosphere and other components of the climate system.

ardderchog

Demonstrating an excellent understanding of different forms of ice in, and in contact with, the ocean, glacier physics, flow, processes of erosion and deposition (on land, in lakes and in the ocean), glacial and glacimarine sediments and sedimentation, ice as a archive, and the interactions between the cryosphere and other components of the climate system.

Canlyniad dysgu

  1. Identify the most significant physical and biogeochemical differences characterising cryosphere-hydrosphere interactions in the Arctic and the Southern oceans.

  2. Describe the different forms of ice found in or in contact with oceanic waters

  3. Describe and interpret sequences of glacial and related sediments in the field.

  4. Relate glacier physics to processes of erosion, sediment entrainment, transport and deposition (both on land and in the ocean)

  5. Identify the critical role that glaciers, ice sheets and sea ice play in the global climate system, both as active agents of change and as archives of past change

  6. Solve simple calculations relating to glacier dynamics and the physical oceanography of the high latitudes

Dulliau asesu

Math Enw Disgrifiad Pwysau
PRAWF DEALLTWRIAETH Online test general knowledge, data mining, interpretation and comparison 15
GWAITH CWRS IPCC desktop study 15
GWAITH CWRS Field report 30
ARHOLIAD Exam 40

Strategaeth addysgu a dysgu

Oriau
Lecture

Lectures: 2 x 1 hour lectures per week for 11 weeks

22
Fieldwork

Fieldtrip: 1 day-long fieldtrip to Snowdonia and the Llyn Peninsula

8
Private study

The directed study will relate to each of the assessment elements:

  1. Essay assessment: this will require c. 43 hours directed research and reading
  2. Practical assessment: this will require c. 25 hours directed research and reading
  3. IPCC desktop study: this will require c. 25 hours directed research and reading
  4. Exam revision and wider general reading: c. 77 hours
170

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
  • 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
  • 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.

Adnoddau

Goblygiadau o ran adnoddau ar gyfer myfyrwyr

Warm and waterproof clothing for fieldwork in Snowdonia. Robust walking shoes/boots.

Rhestrau Darllen Bangor (Talis)

http://readinglists.bangor.ac.uk/modules/osx-2011.html

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