Mary-Louise Timmermans
Alma materUniversity of Cambridge
Scientific career
InstitutionsYale University
ThesisStudies in fluid dynamics (2000)

Mary-Louise Elizabeth Timmermans is a marine scientist known for her work on the Arctic Ocean. She is the Damon Wells Professor of Earth and Planetary Sciences at Yale University.

Education and career

Timmermans has a B.S. from the University of Victoria (1994) and an M.S. from the University of Cambridge (1996). In 2000 she earned her Ph.D. from Trinity College, Cambridge where she worked on fluid dynamics.[1] Following her Ph.D. she held a postdoctoral position at the University of Victoria from 2001 until 2002. She then moved to Woods Hole Oceanographic Institution as a postdoctoral scholar and then joined the faculty in 2005. In 2009 she moved to Yale University where she was promoted to professor in 2017[2] and was named the Damon Wells Professor of Earth and Planetary Sciences in 2020.[3]

Research

Timmermans is known for her research on water masses in the Arctic, particularly how they store heat and freshwater, and move throughout the region. She uses instruments placed in the ocean for extended periods of time[4] to investigate water masses deep in the Canada Basin.[5] The challenges associated with the long-term placement of instruments in the ocean were described in a 2004 article at National Geographic.[6] The resulting data allow her to track the movement of water from the Pacific Ocean into the Arctic Ocean,[7] and has implications for changes in the density layers of the Arctic Ocean[8] and the amount of oxygen stored underneath sea ice.[9] Timmermans' research has found that water in the region is becoming "spicier" which is a change in the balance of how temperature and salinity impacts density.[10] This change means temperature will become more important in determining the density of water masses in the region.[11][12] Her research has also determined that the amount of heat stored in the Arctic has doubled over the last 30 years which will slow the rate new sea ice is formed in the region.[13] This research was widely covered in the press because the added heat in the region will trigger additional melting of sea ice.[14][15] These changes in the water temperature are also changing how the Arctic Ocean carries sound,[16] and changing the movement of water in the Arctic Ocean.[17]

Selected publications

Awards and honors

Timmermans received a National Science Foundation CAREER award in 2014, and in 2019 received a Presidential Early Career Award for Scientists and Engineers (PECASE).[18] In 2019 Timmermans gave the Sverdrup Award Lecture for the American Geophysical Union.[19] Timmermans has also been awarded for outstanding teaching at Yale University.[20]

References

  1. ↑ Timmermans, Mary-Louise Elizabeth; University of Cambridge (2000). Studies in fluid dynamics. OCLC 894597962.
  2. ↑ "Timmermans CV" (PDF). 2020. Retrieved October 25, 2021.
  3. ↑ "Mary-Louise Timmermans appointed the Damon Wells Professor". YaleNews. 2020-08-27. Retrieved 2021-10-25.
  4. ↑ Timmermans, M.-L.; Toole, J.; Krishfield, R.; Winsor, P. (2008). "Ice-Tethered Profiler observations of the double-diffusive staircase in the Canada Basin thermocline". Journal of Geophysical Research: Oceans. 113 (C1). Bibcode:2008JGRC..113.0A02T. doi:10.1029/2008JC004829. hdl:1912/3749. ISSN 2156-2202.
  5. ↑ Timmermans, Mary-Louise; Garrett, Chris; Carmack, Eddy (2003-10-01). "The thermohaline structure and evolution of the deep waters in the Canada Basin, Arctic Ocean". Deep Sea Research Part I: Oceanographic Research Papers. 50 (10): 1305–1321. Bibcode:2003DSRI...50.1305T. doi:10.1016/S0967-0637(03)00125-0. ISSN 0967-0637.
  6. ↑ Holland, Jennifer Steinberg (January 2004). "Northern Exposure". National Geographic. Archived from the original on January 17, 2008. Retrieved 2021-10-25.
  7. ↑ Timmermans, M.-L.; Proshutinsky, A.; Golubeva, E.; Jackson, J. M.; Krishfield, R.; McCall, M.; Platov, G.; Toole, J.; Williams, W.; Kikuchi, T.; Nishino, S. (2014). "Mechanisms of Pacific Summer Water variability in the Arctic's Central Canada Basin". Journal of Geophysical Research: Oceans. 119 (11): 7523–7548. Bibcode:2014JGRC..119.7523T. doi:10.1002/2014JC010273. hdl:1912/7030. ISSN 2169-9291.
  8. ↑ Toole, J. M.; Timmermans, M.-L.; Perovich, D. K.; Krishfield, R. A.; Proshutinsky, A.; Richter-Menge, J. A. (2010). "Influences of the ocean surface mixed layer and thermohaline stratification on Arctic Sea ice in the central Canada Basin". Journal of Geophysical Research: Oceans. 115 (C10). Bibcode:2010JGRC..11510018T. doi:10.1029/2009JC005660. hdl:1912/4287. ISSN 2156-2202.
  9. ↑ Timmermans, M.-L.; Krishfield, R.; Laney, S.; Toole, J. (2010-11-01). "Ice-Tethered Profiler Measurements of Dissolved Oxygen under Permanent Ice Cover in the Arctic Ocean". Journal of Atmospheric and Oceanic Technology. 27 (11): 1936–1949. Bibcode:2010JAtOT..27.1936T. doi:10.1175/2010JTECHO772.1. hdl:1912/4165. ISSN 0739-0572.
  10. ↑ Timmermans, Mary-Louise; Jayne, Steven R. (2016-04-01). "The Arctic Ocean Spices Up". Journal of Physical Oceanography. 46 (4): 1277–1284. Bibcode:2016JPO....46.1277T. doi:10.1175/JPO-D-16-0027.1. hdl:1912/7981. ISSN 0022-3670. S2CID 41720047.
  11. ↑ Russell, Emily (2016-05-26). "'Spicy' ocean levels could spell trouble for marine mammal hunting". Alaska Public Media. Retrieved 2021-10-25.
  12. ↑ KNOM, Emily Russell (2016-05-29). "As Arctic Ocean Gets Spicier, Hunting May Be More Dangerous". KTOO. Retrieved 2021-10-25.
  13. ↑ Timmermans, Mary-Louise; Toole, John; Krishfield, Richard (2018). "Warming of the interior Arctic Ocean linked to sea ice losses at the basin margins". Science Advances. 4 (8): eaat6773. Bibcode:2018SciA....4.6773T. doi:10.1126/sciadv.aat6773. ISSN 2375-2548. PMC 6114986. PMID 30167462.
  14. ↑ Toth, Katie (August 29, 2018). "Warm water under Arctic ice a 'ticking time bomb,' researcher says". CBC News. Retrieved October 25, 2018.
  15. ↑ Weber, Bob (2018-08-29). "Yale researchers find heat held in Arctic Ocean doubles in 30 years". Toronto.com. Retrieved 2021-10-25.
  16. ↑ Nowogrodzki, Anna (January 18, 2017). "Global Warming Is Changing How the Ocean Carries Sound". Hakai Magazine. Retrieved 2021-10-25.
  17. ↑ Timmermans, Mary-Louise; Marshall, John (2020). "Understanding Arctic Ocean Circulation: A Review of Ocean Dynamics in a Changing Climate". Journal of Geophysical Research: Oceans. 125 (4): e2018JC014378. Bibcode:2020JGRC..12514378T. doi:10.1029/2018JC014378. hdl:1721.1/133811.2. ISSN 2169-9291. S2CID 216266197.
  18. ↑ "President Donald J. Trump Announces Recipients of the Presidential Early Career Award for Scientists and Engineers – The White House". trumpwhitehouse.archives.gov. July 2, 2019. Retrieved 2021-10-25.
  19. ↑ "Harald Sverdrup Lecture |AGU". www.agu.org. Retrieved 2021-10-25.
  20. ↑ "Six teachers honored for inspiring, challenging, and caring for their undergraduate students". YaleNews. 2015-04-28. Retrieved 2021-10-25.


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