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Vast expansion of the blue ocean is always
an intriguing sight. It embodies the under water world of
animals, plants, insects apart from great secrets, treasures,
misfortunes and resources. Read
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What
is Ocean Thermal Energy Conversion?
The oceans cover a little more than 70 percent
of the Earth's surface. This makes them the
world's largest solar energy collector and energy storage
system. Read
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What's to see in the Ocean?
The ocean plays an essential role in the world's
climate system, absorbing about half the heat from the sun.
The heat escapes to warm the atmosphere, mainly through evaporation
either locally or months or years later having been transported
by ocean currents thousands of kilometres. Read
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Climate and Computer Modelling
The temperature patterns of our global oceans and the seas
around Australia influence changes in rainfall and the evolution
of our climate, which are important issues for our environment
and several primary industries. Read
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Basics of Hurricane
The ingredients for a hurricane include
a pre-existing weather disturbance, warm tropical oceans,
moisture, and relatively light winds aloft. If the right conditions
persist long enough, they can combine to produce the violent
winds, incredible waves, torrential rains, and floods we associate
with this phenomenon. Read
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What is AVHRR?
The primary sensor on board the NOAA polar-orbiting satellites
is the Advanced Very High Resolution Radiometer (AVHRR). The
AVHRR instrument consists of an array of small sensors that
record (as digital numbers) the amount of visible and infrared
radiation reflected and (or) emitted from the Earth's surface. Read
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Petroleum(Oil) in Sea
Oil was formed from the remains of animals and plants that
lived millions of years ago in a marine (water) environment
before the dinosaurs. Over the years, the remains were covered
by layers of mud. Read
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Methyl Bromide in the Atmosphere and Ocean
An understanding of the global distribution and temporal trends of atmospheric methyl bromide (CH3Br) is necessary to place constraints on the magnitude and distribution of its sources and sinks. Although evidence suggests that the atmospheric burden of CH3Br increased during the 1980s, its atmospheric mole fraction does not appear to have changed significantly during the past decade. Read
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Ocean temperatures and sea level increases 50 percent higher than previously estimated
The results are reported in the June 19 edition of the journal
Nature. An international team of researchers, including Lawrence
Livermore National Laboratory climate scientist Peter Gleckler,
compared climate models with improved observations that show
sea levels rose by 1.5 millimeters per year in the period
from 1961-2003. Read
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Climate Models Consistent with Ocean Warming Observations
Climate models provide spatially complete ocean temperature
data, so unlike the incomplete observations, infilling is
not required. By sampling the models only where there are
observations, the Livermore team found that infilling had
a pronounced effect on observed estimates of ocean variability,
and brought model results closer in line with observations. Read
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Bacteria "Feed" on Earth's Ocean-Bottom Crust
Seafloor bacteria on ocean-bottom rocks
are more abundant and diverse than previously thought, appearing
to "feed" on the planet's oceanic crust,
according to results of a study reported in this week's issue
of the journal Nature. Read
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