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Update on the Carbon Mitigation Initiative Robert Socolow
Update on the Carbon Mitigation Initiative Robert Socolow

... •New model studies predict a 20% reduction in fish size and likely tuna habitat reduction due to climate change and ocean warming. ...
Update on the Carbon Mitigation Initiative Robert Socolow Princeton
Update on the Carbon Mitigation Initiative Robert Socolow Princeton

... •New model studies predict a 20% reduction in fish size and likely tuna habitat reduction due to climate change and ocean warming. ...
The influence of the ocean currents parameterization on changes in
The influence of the ocean currents parameterization on changes in

... I.V. Borovko, V.N. Krupchatnikov Abstract. In a number of papers, it is shown that the ocean currents velocity considerably affects the interaction between the atmosphere and the ocean in the regions where currents are sufficiently strong. In this paper, the influence of the ocean currents on its re ...
The Oceans - BradyGreatPath
The Oceans - BradyGreatPath

... - Globally warming sea and air may be increasing the strength and frequency of these cycles © 2011 Pearson Education, Inc. ...
Subduction Zone Divergent Plate Boundary
Subduction Zone Divergent Plate Boundary

... Subduction Zone ocean trench ...
The Dynamic Earth - Moore Public Schools
The Dynamic Earth - Moore Public Schools

... where sunlight never reaches, are very cold, just above freezing. ...
The Shape of the Ocean Basins - Geomorphology - essie-uf
The Shape of the Ocean Basins - Geomorphology - essie-uf

... who live on shorelines that have relief in regions close to the coast. But for those who live in relatively flat regions, like the western Pacific, there are reasons to be very concerned. Within several generations their territories may disappear. Approximately 15,000 years ago the sea level was ove ...
Ocean Floor
Ocean Floor

... • Continents are thick (30 to 40 km), have low density and rise high above the supporting mantle rocks. • Sea floor is thin (4 to 10 km), has greater density and does not rise as high above the mantle. ...
Marine Microbiology
Marine Microbiology

... weather patterns) -Biological effects of climate change (phenology, distribution, body size) ...
The Ocean Floor
The Ocean Floor

... Less than 0.1 percent of the world's seamounts have been explored to learn what species live on them, but many of the species that have been found so far are new to science. It has been estimated that more than 30,000 seamounts reaching more than 1,000 meters tall are found in the Pacific Ocean. App ...
Second
U.S.
Ocean
Acidification
Principal
Investigators'
Meeting
 Gallaudet
University's
Kellogg
Conference
Center,
Washington,
DC

Second
U.S.
Ocean
Acidification
Principal
Investigators'
Meeting
 Gallaudet
University's
Kellogg
Conference
Center,
Washington,
DC


... estimated
$1.9
trillion
per
year.

Their
high
rates
of
carbon
assimilation
may
reduce
local
pCO2
levels
by
 >50%
during
daytime.


As
a
result
seagrasses
sequester
“blue
carbon”,
storing
as
much
as
19.9
Pg
of
organic
 carbon
in
the
form
of
anaerobic,
organic‐rich
loams.

They
are
responsible
for
an
 ...
arctic ice
arctic ice

... The Arctic ice cover [has been decreasing] overall. In the course of the past two decades, it’s been retreating at about a rate of 2.8% per decade. Baron. That’s like losing an area the size of Maryland every year. Measurements from ships and airplanes suggest the pack ice has been shrinking for the ...
Earth’s Complex Complexion
Earth’s Complex Complexion

... there is now a third, ultraslow. Ultraslow-spreading ridges, which may make up one-third of the global ocean ridge system, have distinctive characteristics. Like other mid-ocean ridges, ultraslow ridges have areas where magma rises from the mantle and erupts at the seafloor to create new ocean crust. ...
To change the ocean water density we can: provide heating/cooling
To change the ocean water density we can: provide heating/cooling

... Ocean heat fluxes are influenced by the uncertainties (observational, sampling, etc.), which impact on the zonal heat balance and propagate quickly to MHT through the integration: MHT, being physically a very important parameter, remains not very effective measure of the reliability of surface flux ...
The sea floor spreads apart at divergent boundaries.
The sea floor spreads apart at divergent boundaries.

... Mid-ocean ridges are the longest chain of mountains on Earth. Most of these ridges contain a rift valley along their center, as shown in the diagram below. When molten material rises from the asthenosphere, cold ocean water cools the rock until it becomes solid. As the plates move apart, new cracks ...
OCEAN-ATMOSPHERIC INTERACTION IN THE SUBTROPICAL
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... a mechanism for transferring mass, heat, salt and tracers between the subtropical and equatorial gyres. Model results suggest STCs play a potential role in modulating climate through equatorial SST either by advecting water subducted with anomalous temperature and/or salinity in the subtropics to th ...
Wegener—Continental Drift
Wegener—Continental Drift

... drift. Which of the following is the best fossil evidence for continental drift? A. Fossils of the same land dwelling animals were found on widely separated continents. B. Fossils of the same ocean dwelling organisms were found in different oceans. C. Fossils of the same warm climate organisms were ...
Slide 1
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... plankton are plants that produce much of the Earth’s oxygen and serve as the base of the ocean ecosystem? ...
Australasian Regional IODP Workshop in 2017 for building new
Australasian Regional IODP Workshop in 2017 for building new

... number of excellent proposals being submitted, which could be drilled as a group, thus making logistical sense. The results exceeded our expectations, with many expeditions already completed in the Indian Ocean, and a major series of expeditions scheduled in the Southwest Pacific Ocean. However, new ...
Unit 7: The Ocean Floor
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... middle of the Atlantic Ocean, around the tip of Africa and into the Indian Ocean. The chain then continues across to the Pacific Ocean and north to North America. In some areas, the highest peaks of the mid-ocean ranges reach above sea level, forming island chains. Mid-ocean ridges do not form in th ...
What Changes in the Carbonate System, Oxygen, and Temperature
What Changes in the Carbonate System, Oxygen, and Temperature

... n many regions of the world ocean, global change   is leading to alterations in a suite of abiotic factors that have wide-ranging effects on the physiologies of marine organisms (Gattuso and Hansson 2011, Gattuso et al. 2015). Understanding how environmentally driven changes in physiological systems ...
floor features notes
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... – Formed by deposition of sediment from land brought by turbidity currents – Not found at active continental margins ...
Plate Tectonics Study Guide (Chapter 13 Lesson 1) Challenge Date
Plate Tectonics Study Guide (Chapter 13 Lesson 1) Challenge Date

... 7. Compare oceanic and continental crust. Which is thicker? Which is denser? 8. Describe the different types of plate boundaries in terms of how plates move and features that form (e.g. volcanoes, trenches, mid-ocean ridges, rift valleys, earthquakes, mountains). Be able to recognize diagrams of eac ...
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... • What could happen if the polar regions had less upwelling due to change in ocean circulation? ...
Understanding Ocean Acidification Prior Knowledge Summary
Understanding Ocean Acidification Prior Knowledge Summary

... the amount of carbonate ions available for many marine organisms to form their calcium carbonate hard parts. Coral polyps are less able to precipitate the mineral aragonite, which they use to build or rebuild their skeletons. This means that a coral reef might stop growing and become more vulnerable ...
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Ocean acidification



Ocean acidification is the ongoing decrease in the pH of the Earth's oceans, caused by the uptake of carbon dioxide (CO2) from the atmosphere. An estimated 30–40% of the carbon dioxide from human activity released into the atmosphere dissolves into oceans, rivers and lakes. To achieve chemical equilibrium, some of it reacts with the water to form carbonic acid. Some of these extra carbonic acid molecules react with a water molecule to give a bicarbonate ion and a hydronium ion, thus increasing ocean acidity (H+ ion concentration). Between 1751 and 1994 surface ocean pH is estimated to have decreased from approximately 8.25 to 8.14, representing an increase of almost 30% in H+ ion concentration in the world's oceans. Since current and projected ocean pH levels are above 7.0, the oceans are technically alkaline now and will remain so; referring to this effect as ""decreasing ocean alkalinity"" would be equally correct if less politically useful. Earth System Models project that within the last decade ocean acidity exceeded historical analogs and in combination with other ocean biogeochemical changes could undermine the functioning of marine ecosystems and disrupt the provision of many goods and services associated with the ocean.Increasing acidity is thought to have a range of possibly harmful consequences, such as depressing metabolic rates and immune responses in some organisms, and causing coral bleaching. This also causes decreasing oxygen levels as it kills off algae.Other chemical reactions are triggered which result in a net decrease in the amount of carbonate ions available. This makes it more difficult for marine calcifying organisms, such as coral and some plankton, to form biogenic calcium carbonate, and such structures become vulnerable to dissolution. Ongoing acidification of the oceans threatens food chains connected with the oceans. As members of the InterAcademy Panel, 105 science academies have issued a statement on ocean acidification recommending that by 2050, global CO2 emissions be reduced by at least 50% compared to the 1990 level.Ocean acidification has been called the ""evil twin of global warming"" and ""the other CO2 problem"".Ocean acidification has occurred previously in Earth's history. The most notable example is the Paleocene-Eocene Thermal Maximum (PETM), which occurred approximately 56 million years ago. For reasons that are currently uncertain, massive amounts of carbon entered the ocean and atmosphere, and led to the dissolution of carbonate sediments in all ocean basins.
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