GOAL 1: Examine the historical evolution of the arctic ice -
ocean system from 1948 to 2003 to understand the large - scale changes that have occurred in sea ice and the upper Arctic Ocean over this time period.
Not exact matches
The M142 High Mobility Artillery Rocket
System (HIMARS) is no longer reserved for bombarding the bejesus out of ISIS militants in Syria from the cover of the war - torn country's rolling deserts: Marine Corps officials are experimenting with firing the guided artillery system from the deck of an amphibious ship in the middle of the
System (HIMARS) is no longer reserved for bombarding the bejesus out of ISIS militants in Syria
from the cover of the war - torn country's rolling deserts: Marine Corps officials are experimenting with firing the guided artillery
system from the deck of an amphibious ship in the middle of the
system from the deck of an amphibious ship in the middle of the
ocean.
Atlantic Sand Assessment Project — To help coastal communities recover
from Hurricane Sandy, promote resilient coastal
systems, and help build a national offshore sand inventory, the Bureau of
Ocean Energy Management (BOEM) sponsored offshore surveys to identify new sources of sand in federal waters
from Miami, Florida to Massachusetts in 2015 and several site specific surveys in 2016 and 2017.
This week's celebration of the 125th anniversary of the Last Spike is an opportunity to reflect not only on the «national dream» of linking Canada
from coast to coast, but also on the larger «international dream» of a combined rail and
ocean transportation
system that linked North America to Asia.
I find this odd coming
from someone who denies the possibility or probability of a deity, and embraces a
system that touts its adherence to science and reason, can make the claim that «certainty the
ocean and the moon and the stars... live with something that is cherished and feel the treasure of it».
OCEAN BREEZE — Staten Island University Hospital is set to receive $ 28 million to protect itself
from future storms — including raising the building's power
systems, Mayor Bill de Blasio announced.
One unknown is how the addition of massive flows of freshwater
from Siberian rivers, bolstered by thawing permafrost, could affect the
system, says study co-author Eddy Carmack, an oceanographer with Fisheries and
Oceans Canada in Sidney.
Sato et al. (p. 1395, published online 19 May) describe the huge displacements
from ocean bottom transponders — previously placed directly above the earthquake's hypocenter — communicating with Global Positioning
System (GPS) receivers aboard a ship.
Following the maxim of keeping everything as simple as possible, but not simpler, Will Steffen
from the Australian National University and I drew up an Anthropocene equation by homing in on the rate of change of Earth's life support
system: the atmosphere,
oceans, forests and wetlands, waterways and ice sheets and fabulous diversity of life.
That question is central to understanding the effects of ice sheet melting on
ocean water properties, circulation, and biological
systems, on scales
from local to basinwide.
Millan, a UCI graduate student researcher in Earth
system science, and his colleagues analyzed 20 major outlet glaciers in southeast Greenland using high - resolution airborne gravity measurements and ice thickness data
from NASA's Operation IceBridge mission; bathymetry information
from NASA's
Oceans Melting Greenland project; and results
from the BedMachine version 3 computer model, developed at UCI.
And, in fact, the general circulation — the global
system of
ocean and air currents that we observe — results
from this north - south imbalance.
Co-author Dr Gavin Foster,
from Ocean and Earth Science at the University of Southampton, says: «Our work focused on the discovery of new relationships within the natural Earth
system.
Whereas Pluto's putative
ocean could in principle support life, it is probably locked beneath perhaps 200 kilometers of ice and very far
from Earth, making it a much less appealing target for astrobiological studies than other, closer subsurface
oceans known to exist in the solar
system, such as those within the icy moons circling Jupiter and Saturn.
In our solar
system, the planet Mars suffered this fate and turned
from a world warm enough for briny
oceans to a cold, dry desert.
Andrew Rosenberg, a scientist who led one of the report's chapters on
oceans and directs the Center for Science and Democracy at the Union of Concerned Scientists, said the report outlines changes that are happening now in various
systems from agriculture to water resources to forestry to
oceans.
These findings
from University of Melbourne Scientists at the ARC Centre of Excellence for Climate
System Science, reported in Nature Climate Change, are the result of research looking at how Australian extremes in heat, drought, precipitation and
ocean warming will change in a world 1.5 °C and 2 °C warmer than pre-industrial conditions.
«Considering the Southern
Ocean absorbs something like 60 % of heat and anthropogenic CO2 that enters the ocean, this wind has a noticeable effect on global warming,» said lead author Dr Andy Hogg from the Australian National University Hub of the ARC Centre of Excellence for Climate System Sci
Ocean absorbs something like 60 % of heat and anthropogenic CO2 that enters the
ocean, this wind has a noticeable effect on global warming,» said lead author Dr Andy Hogg from the Australian National University Hub of the ARC Centre of Excellence for Climate System Sci
ocean, this wind has a noticeable effect on global warming,» said lead author Dr Andy Hogg
from the Australian National University Hub of the ARC Centre of Excellence for Climate
System Science.
Based on the unique fish fauna observed
from a manned submersible on a southern Caribbean reef
system in Curaçao, Smithsonian explorers defined a new
ocean - life zone, the rariphotic, between 130 and 309 meters (about 400 to 1,000 feet) below the surface.
That
system — which includes tags, sound receivers and software — was initially designed to provide a more accurate picture of how young salmon migrate
from their birthplace in Columbia River Basin waters to the open Pacific
Ocean.
Aliens might want resources
from our solar
system (Earth's
oceans, perhaps, full of hydrogen for refilling a fusion - powered spacecraft) and swat us aside if we get in the way, as we might dismiss mosquitoes or beetles stirred up by the logging of a rain forest.
Changes in the Southern Annular Mode, an
ocean current that prevents low - pressure rain
systems from passing over southern Australia, has helped shut off winter showers in Perth.
This bombardment of asteroids a few million years after the start of the solar
system could have easily delivered enough ice — locked inside the rocks, safe
from the sun's heat — to account for Earth's
oceans, computer simulations indicate.
At the mouth of the Bay of Fundy, just off the coast of Maine, a tidal power
system built and operated by the
Ocean Renewable Power Company (ORPC) draws energy
from currents created as 100 billion tons of water flow into and out of the bay.
Co-author of the study Professor Ian Hall,
from the School of Earth and
Ocean Sciences, said: «Our results highlight the challenge of basing our understanding of the climate
system on generally short observational records.
The models also include the greenhouse gas emissions and other pollutants that result
from these processes, and they incorporate all of that information within a global climate model that simulates the physical and chemical processes in the atmosphere, as well as in freshwater and
ocean systems.
Astronomers know very little for certain about Ceres, but based on indirect evidence, they speculate that it is a world of clay and ice, and possibly even has a subsurface
ocean of liquid water, preserved
from the very creation of the solar
system.
«These conditions will cause changes in phytoplankton growth and
ocean circulation around Antarctica, with the net effect of transferring nutrients
from the upper
ocean to the deep
ocean,» said lead author J. Keith Moore, UCI professor of Earth
system science.
Debris left over
from the solar
system's creation regularly slammed into Earth, boiling away the early
ocean and coating the planet with molten rock.
What we see as a mere light in the sea is a phenomenon occurring in nearly all the organisms living in the seas and
oceans,
from bacteria to large fish, and which impacts the behaviour and dynamics of the entire
system.
«This relationship between Antarctica temperature and CO2 suggested that somehow the Southern
Ocean was pivotal in controlling natural atmospheric CO2 concentrations,» said Dr Maxim Nikurashin
from the ARC Centre of Excellence for Climate
System Science.
Better knowledge of lightning - heavy tropical
ocean storms could improve weather forecasts far
from the equator, Mass said, since many global weather
systems originate in the tropics.
«When we included projected Antarctic wind shifts in a detailed global
ocean model, we found water up to 4 °C warmer than current temperatures rose up to meet the base of the Antarctic ice shelves,» said lead author Dr Paul Spence
from the ARC Centre of Excellence for Climate
System Science (ARCCSS).
For much of the global
ocean the coarser resolution is okay, but when you are studying a unique location like the Gulf of Maine, with its complex bathymetry of deep basins, channels, and shallow banks combined with its location near the intersection of two major
ocean current
systems, the output
from the coarser models can be misleading.»
Geothermal activity may sustain hidden
oceans on worlds ejected
from their planetary
systems
Study co-author Katy Sheen, a Postdoctoral Research Fellow
from Ocean and Earth Science at the University of Southampton, says: «These findings will help us to understand the processes that drive the ocean circulation and mixing so that we can better predict how our Earth system will respond to the increased levels of carbon dioxide that we have released into the atmosphere.&r
Ocean and Earth Science at the University of Southampton, says: «These findings will help us to understand the processes that drive the
ocean circulation and mixing so that we can better predict how our Earth system will respond to the increased levels of carbon dioxide that we have released into the atmosphere.&r
ocean circulation and mixing so that we can better predict how our Earth
system will respond to the increased levels of carbon dioxide that we have released into the atmosphere.»
This diagram shows an interlinked
system of animals that carry nutrients
from ocean depths to deep inland — through their poop, urine, and, upon death, decomposing bodies.
Most important, it relies on the first published results
from the latest generation of so - called Earth
System climate models, complex programs that run on supercomputers and seek to simulate the planet's
oceans, land, ice, and atmosphere.
That's because a current of cold
ocean water moves
from north to south along the West Coast, cooling the coastal Pacific and removing the threat of hurricanes, which form only when low pressure
systems siphon off the energy
from warm
ocean water.
Conor Purcell
from Cardiff University's School of Earth and
Ocean Sciences, said: «Using the simulations performed with our climate model, we were able to demonstrate that the climate
system can respond to small changes with abrupt climate swings.
«The model we developed and applied couples biospheric feedbacks
from oceans, atmosphere, and land with human activities, such as fossil fuel emissions, agriculture, and land use, which eliminates important sources of uncertainty
from projected climate outcomes,» said Thornton, leader of the Terrestrial
Systems Modeling group in ORNL's Environmental Sciences Division and deputy director of ORNL's Climate Change Science Institute.
These variations originate primarily
from fluctuations in carbon uptake by land ecosystems driven by the natural variability of the climate
system, rather than by
oceans or
from changes in the levels of human - made carbon emissions.
They used baited remote underwater video
systems — cameras lowered to the
ocean floor with a small amount of bait — to survey sharks and other predators
from the surrounding reef.
«Not only does this discovery make it one of the most geologically interesting bodies in the solar
system, it also implies two - way communication between the exterior and interior — a way to move material
from the surface into the
ocean — a process which has significant implications for Europa's potential as a habitable world.»
Scientists are involved in the evaluation of global - scale climate models, regional studies of the coupled atmosphere /
ocean / ice
systems, regional severe weather detection and prediction, measuring the local and global impact of the aerosols and pollutants, detecting lightning
from space and the general development of remotely - sensed data bases.
Many organic molecules needed for life could even have formed below the
ocean floor
from interactions between minerals and circulating hot water driven these hydrothermal ven
systems.
The
system is called Global Fishing Watch, and it was conceived by
ocean - hugger nonprofit Oceana, developed by our favorite eye - in - the - sky watchdog SkyTruth, powered by satellite company SpaceQuest, with technical support
from Google.
The mission is to replace two similar National
Ocean Surveillance
System (NOSS) spacecraft launched
from Cape Canaveral on Feb 3, 2005 on the final Atlas - III rocket before the shift to the Atlas - V Evolved Expendable Launch Vehicle (EELV).
For one thing, the fit neglects lags in the
system (such as those resulting
from ocean heat uptake) and it also neglects changes in albedo and other radiative factors.
The AMOC is part of a global
ocean circulation
system that carries heat
from the tropics to the North Atlantic.