Oceanography is
the study of the deep sea and shallow coastal oceans: biology,
chemistry, geology and physics together make oceanography a
richly interdisciplinary science. Although they contain most
of the Earth's water and carbon and surface heat, and much
of its biomass, the oceans do not operate alone. Together with
the atmosphere, continents and ice-cover (the cryosphere), they
form a working machine, driven mostly by energy from the sun.
Lesser amounts of energy derive from tides raised by the moon
and sun and planets, and heat from the Earth"s interior.
Oceanographers aim their work at both practical problems and basic scientific
discovery. In the area of human health, for example, the oceans
provide threats: they spawn and energize storms and hurricanes,
endangering coastal populations (more than ½ of the worlds'
population live within 50 km of the sea). Yet they also provide
a bountiful diversity of food, are the reservoir of our water
supply and most of the heat and carbon of the climate system,
are the source of roughly ½ the respired oxygen of the biosphere,
and contain most of the remaining undiscovered natural pharmaceuticals.
The physical climate of Earth, its patterns of temperature,
cloud and rain, may be described as an argument between the
atmosphere and oceans.
To understand these, techniques of classical physics, chemistry,
geology and biology are joined with modern instrumentation and
computers.
The Department of Earth and Ocean Sciences offers a Major degree.
Students not intending to pursue graduate study but interested
in Oceanography can do Majors in Earth and Ocean Sciences comprised
mainly of oceanography courses. The Honours programs are recommended
for students who wish to go onto graduate study. The Major program
is structured so students will have a solid grounding in one
or more of the basic sciences that make up the multidisciplinary
field of oceanography.
Why is Oceanography important?
Perhaps the most
important observation is that oceanography gives you a world
view, ...an understanding of the global system that is our environment,
which can inspire your work, wherever it leads.
Today, we still need to bring back samples of water from the deep ocean
for analysis, but many of our measurements are now electronic;
and there are many more things we can measure. Physical variables
like temperature and salinity are observed in this way, and
there are new probes being designed that will allow electronic
measurement of many chemical and biological variables.
What do Oceanographers do?
Not all oceanography is done from ships. Seismology and sub-seabed
geophysics are being explored using underwater observatories.
Moorings, with steel or Kevlar cable extending from near the
ocean surface to its bottom, are laced with instruments that
record observations internally, and perhaps relay them to a
satellite. And, increasingly, autonomous undersea vehicles (AUVs)
propel themselves or drift with currents for years at a time.
In the environmentally sensitive coastal ocean and estuaries,
"cat-scans" can be done using fast, small boats towing
instruments that fly through the water on a carefully controlled
course. Meanwhile, acoustic waves are sent down through the
water column, and their reflections off small particles in the
water give a complete profile of the ocean velocity, from top
to bottom.
Arctic oceanographers also have a novel way of doing research: in ice
camps near the North Pole. Icebreakers are sometimes involved,
but often it is a matter of boring holes in the ice and using
helicopters and ski-equipped airplanes to do 'sections' across
the Arctic, or to set moorings and autonomous vehicles into
action.
The Arctic Ocean is an important part of the climate system, and
it is now rapidly changing; it is predicted to lead the world
in global warming. Doing research there one is unlikely to get
seasick, but one must be wary of polar bears.
Theoretical work in oceanography has the flavor of classical physics, and
indeed discoveries by ocean/atmosphere scientists have kindled
many sub-fields of physics: for example the science of chaos,
which involves the complex behavior of seemingly simple physical
systems, arose largely from a simple model of the atmospheric
circulation. The solition, a fundamental, nonlinear wave that
propagates undistorted over great distances, was discovered
in oceanography and now is found in fiber-optics cables, and
many physical systems.
Computers play an intense role in physical oceanography, giving us simulations
of waves and circulation based on Newtonian dynamics. Ocean
and atmosphere are coupled together in climate models and circulation
models; the computer models become the meeting point for observations,
theory and prediction.
Physical oceanography is involved in many facets of global climate
research, and recent observations carried out by oceanographers
in the Arctic and sub-Arctic are shedding new light on global
warming. The intensification of the fresh-water movement in
the atmosphere, land and ocean due to global warming may be
driving major changes in ocean circulation.
Techniques of molecular biology are giving us the power to profile
the genetics of oceanic biological communities, and explore
their evolutionary history. New applications of ocean biology
relate to transmission of disease, and fundamental questions
about the oceanic food web. The search for extra-terrestrial
life, the origins of life on Earth, and general questions about
life in extreme environments, are being explored by a diverse
population of scientists, involving significantly oceanography.
In ocean geophysics the time development of seafloor processes
is being studied with recording instruments, Seismic waves from
earthquakes and test explosions probe the structure of the solid
Earth, including the special hot spots along mid-ocean ridges
where upwelling of heat and magma occurs. Discovery of a large
biomass living in hydrothermal systems beneath the sea-bed has
suggested new modes for evolution of life on Earth. A study
of life in extreme environments, from deep-sea vent waters with
temperature ~ 400C, to Arctic algae living in extreme cold,
to possible life beneath the icy shell of Europa, one of the
many moons of Jupiter. This subject cuts across all the sub-fields
of traditional oceanography.
Chemical investigations into the carbon cycle are central to
climate research; the fate of carbon dioxide, methane and other
trace gases added to the system by human activity, involves
exchange across the sea surface and in river outflows. By examining
the stratified sediments of the seafloor, and stratified ice
layers in Greenland and Antarctica, paleoclimatologists can
trace millions of years of climate evolution. Bubbles trapped
in the ice give us a 'whiff' of ancient air, and a surprisingly
varied and convincing picture of trace gases present. Carbon
dioxide levels in the atmosphere were greatly reduced during
each glaciation, though we do not yet know whether this is a
cause or an effect of ice sheets.
There is particular focus in all these disciplines on the coastal ocean, for it
is close to much human activity, and is under great stress.
The newly developed sensors and vehicles make it possible to
observe the ocean. There is a pressing need to get out and do
it, as the rising global change are erasing the system as it
once was.
Jobs in Oceanography?
Because the nature of oceanography involves the sea, most oceanographers
work aboard ship. A great deal of time, however, may also be
spent in the laboratory interpreting data. Oceanographic work
is carried out in research laboratories, universities, and in
industry. Most Ph.D. graduates work in academia, or the research
labs which are really a part of academia. This is changing,
with a broader spectrum of employment for highly skilled environmental
scientists...even as far as the profession of science reporting
and writing. A vast majority of undergraduates use their oceanographic
training in some way, yet less likely in academic research.
Environmental science training can contribute strongly to work
in economics, politics, governmental regulatory practice and
law. Understanding the scientific method of observation, experimentation
and inference is an important part of our program, and is a
rare commodity in these professions. Computing skills are intensively
developed in oceanography, and these of course can be applied
very widely in technical and business-oriented jobs.
There is a widespread need for scientists in industry, commerce or
research, who have a strong scientific training including laboratory
or computing skills, as well as knowledge about the environment.
Graduates have directly applied their Oceanography training by: obtaining
teaching places on MSc and PhD courses; obtaining jobs in industrial
research laboratories; obtaining jobs in government research
laboratories including the Water Boards and environmental protection
agencies. Other Oceanography graduates have applied their degree
to obtain a wide range of jobs within Commerce, Education and
the Armed Forces.
Career Services
Do you know where your future lies after you graduate from UBC?
The question may seem a little premature, but it isn't. The
nature of 'employment' and 'careers' is changing rapidly and
the successful graduate will be one who learns how to capitalize
on the knowledge and skills gained in a degree program in order
to secure the type of employment she or he seeks.
A little-known branch of UBC's Student Services is called Career
Services. Housed in Brock Hall, Career Services staff can help
you prepare for a career after you graduate from UBC. They offer
workshops on searching for jobs and on the skills needed to
get interviews and make them successful. Students also get access
to web-based career resources and on-campus visits by potential
employers. Unfortunately, many students make their first contact
with Career Services in their last term of fourth year and that's
much too late. Don't be one of them!
Oceanography
Oceanography Office
Biological Sciences Building, Room 1461
6270 University Boulevard
Telephone: (604) 822-3278
Advising and Program Approval
Advising is encouraged though not required, for the Major program. Combined Honours programs
in Oceanography and another science require formal approval
from advisers in both departments.
See the advisor
list for all science or Co-op program phone, email and mail
contacts.