Disputas - Master of Science Haoyi Yao

Master of Science Haoyi Yao vil torsdag 26. mars klokken 12.15 offentlig forsvare sin avhandling for graden ph.d. i realfag.

Tittel på avhandlingen:

«Reconstruction of past and present methane emission in the Arctic cold seeps using biogeochemical proxies»

Populærvitenskapelig sammendrag:

We learn from the past, study history to help predict the future — the PhD project focus on three keywords: methane emission history, Arctic cold seep and biogeochemical evidence. Most people now aware that methane is a powerful greenhouse gas. More and more people also aware that there is huge amount of methane in for form of methane hydrate in the ocean. These methane hydrates are not only potential sources for methane emission but also potential energy sources. We are all experiencing global warming, and the Arctic is warming faster than the rest of the world. The Arctic Ocean also hosts large amount of methane hydrate. This PhD thesis focused on two of the hydrate sites in the Arctic. We used biogeochemical tools to study these two sites to find out was there methane emission in the past? Were these emissions related to methane hydrate dissociation? If yes, what were the drivers for the hydrate dissociation?

Veiledere:

  • Professor Giuliana Panieri, Institutt for geovitenskap, UiT (hovedveileder)
  • Senior Scientist Helge Niemann, Department of Microbiology and Biogeochemistry, Royal Netherlands Institute for Sea Research, Utrecht University, Netherlands

Bedømmelseskomité:

  • Professor Jörn Peckmann, Department of Earth Sciences, Universität Hamburg, Germany (1. opponent)
  • Associate Professor Dr. Christian März, School of Earth and Environment, University of Leeds, United Kingdom (2. opponent)
  • Researcher Monica Winsborrow, Department of Geosciences, UiT The Arctic University of Norway (internal member and leader of the committee)

Leder av disputasen: Professor Camilla Brekke, prodekan ved Fakultet for naturviteskap og teknologi, UiT Norges arktiske universitet

Prøveforelesning:

Prøveforelesning avholdes torsdag 26. mars klokken 10.15. Tittel på prøveforelesningen:

«Greenhouse gases and future climate change: The potential contribution of methane»

Disputasen streames fra denne siden.  

Avhandlingen finner du her.

Få utskriftsvennlig versjon ved å trykke på denne
Informasjon
Når: 26. mars 2020 kl. 12.15–15.00
Hvor: Disputasen streames
Studiested: Tromsø
Målgruppe: ansatte, studenter
Kontakt: Maren L. Andresen