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SUMMARY:The challenges of ocean navigation - Kevin Painter (Politecnico di
  Torino)
DTSTART:20230718T101500Z
DTEND:20230718T111500Z
UID:TALK201679@talks.cam.ac.uk
DESCRIPTION:Ocean navigation is notoriously difficult\, with complex curre
 nts and the absence of landmarks conspiring to create considerable uncerta
 inty of one&rsquo\;s position. The tragic loss of almost 2000 lives near t
 he Isles of Scilly in 1707 offered a stark reminder\, sparking the 1714 Lo
 ngitude Act that encouraged a solution to this problem. John Harrison&rsqu
 o\;s extraordinary marine chronometer subsequently heralded an age of safe
 r human seafaring. Many marine animals undertake spectacular migrations\, 
 despite their lack of such technological aids: marine turtles undertake lo
 ng distance solo migrations to remote island nesting beaches\; whales rout
 inely navigate across an ocean basin between feeding and breeding grounds.
  In this talk I will describe some modelling of these phenomena. In the co
 ntext of turtles\, I will explore the challenge faced by a solo navigator 
 as it attempts to return to a small target in the middle of the ocean and 
 show how exploiting multiple sources of navigating information proves opti
 mal. In the context of whale navigation I will consider the role played by
  collective information and the degree to which this can improve navigatio
 n\, as well as the particular challenges faced by whales as our oceans bec
 ome increasingly polluted by noise.
LOCATION:Seminar Room 1\, Newton Institute
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