Sentences with phrase «over ocean increases»

A question for those with more knowledge than me in the matter: does rainfall over the oceans increase the rate of sea - level rise?

Not exact matches

Ocean acidification, which is a direct consequence of increased atmospheric carbon dioxide levels, is expected to have a deleterious effect on many marine species over the next century.

While tougher regulations have driven lead levels down globally since the 1990s, mercury levels in the North Pacific Ocean have increased 30 percent over the last 20 years, potentially putting humans at higher risk of exposure from seafood (See «Made in China: Our Toxic, Imported Air Pollution»).

As well as confirming the tropospheric hotspot, the researchers also found a 10 % increase in winds over the Southern Ocean.

According to a 2015 report in Science, over 10 million tons of plastic waste enter the ocean each year, and that figure may increase 10 times by 2025.

Terrestrial ecosystems have encountered substantial warming over the past century, with temperatures increasing about twice as rapidly over land as over the oceans.

Southern Ocean seafloor water temperatures are projected to warm by an average of 0.4 °C over this century with some areas possibly increasing by as much as 2 °C.

Things can be rough on the open ocean — and they appear to be getting rougher, with increased average air speed, wave height, and frequency of strong winds and large waves over the past two decades.

Fiber goes out in the ocean, and it's all over the land, so this technology increases the likelihood that a sensor is near the rupture when an earthquake happens, which translates into finding small events, improved earthquake locations, and extra time for early warning.»

A new study shows immense increases in shipping are likely over the North Pole and Arctic Ocean in the coming years, alerting scientists who study invasive species

They can also explain more than half of the warming recorded over the Antarctic Peninsula, because «anomalously strong westerlies should act to decrease the incidence of cold air outbreaks from the south and lead to increased warm advection from the Southern Ocean.»

When carbon dioxide, CO2, from the atmosphere is absorbed by the ocean, it forms carbonic acid (the same thing that makes soda fizz), making the ocean more acidic and decreasing the ocean's pH. This increase in acidity makes it more difficult for many marine organisms to grow their shells and skeletons, and threatens coral reefs the world over.

Climate change is expected to increase the intensity of winds over the Southern Ocean throughout the next century, and the new findings show that Totten Glacier will probably respond to the changing winds.

«The results represent a one thousand-fold increase in data over previous attempts to characterize ocean microbial biodiversity,» said a senior author on one of the papers, Peer Bork, during a teleconference for reporters on 19 May, «and yet, this is still the tip of the iceberg.»

The region also experienced the highest rates of sea - level rise over the world, indicating large increases in ocean heat content and leading to substantial impacts on small island states in the region.

Over the course of coming decades, though, trade wind speed is expected to decrease from global warming, Thunell says, and the result will be less phytoplankton production at the surface and less oxygen utilization at depth, causing a concomitant increase in the ocean's oxygen content.

Although the prevailing winds are blowing the bulk of radio isotopes from the plant out over the Pacific Ocean, periodic changes in weather patterns are dumping fallout inland, increasing the doses that residents receive.

A new analysis using changes in cloud cover over the tropical Indo - Pacific Ocean showed that a weakening of a major atmospheric circulation system over the last century is due, in part, to increased greenhouse gas emissions.

«Furthermore, model projections suggest that over the coming decades that South Georgia will experience increased stress from ocean - wide acidification.»

During an El Niño, satellites often observe a shift in precipitation over the ocean, specifically an increase in rain over the eastern Pacific, said Huffman.

Severe hurricanes, storm surges and an increase in the number of icebergs are just some of the changes planet Earth has experienced due to warming oceans over the last 20 years, according to a new report.

To their surprise, the total mercury levels were similar, despite the fact that their modeling estimated a 9 % to 26 % increase in the concentration of inorganic mercury at the ocean surface over the same time period.

Many more people are enjoying the ocean, and so, although the number of shark bites per year has increased over the last six decades, these numbers actually hide a much reduced risk to individuals.

Coral skeletons are the building blocks of diverse coral reef ecosystems, which has led to increasing concern over how these key species will cope with warming and acidifying oceans that threaten their stability.

The effects of wind changes, which were found to potentially increase temperatures in the Southern Ocean between 660 feet and 2,300 feet below the surface by 2 °C, or nearly 3.6 °F, are over and above the ocean warming that's being caused by the heat - trapping effects of greenhouse gOcean between 660 feet and 2,300 feet below the surface by 2 °C, or nearly 3.6 °F, are over and above the ocean warming that's being caused by the heat - trapping effects of greenhouse gocean warming that's being caused by the heat - trapping effects of greenhouse gases.

Strengthening ENSO over the current interglacial period, caused by increasing positive ocean - atmosphere feedbacks

«There's a perception that jellyfish numbers are exploding in the world's oceans,» says marine scientist Rob Condon of the Dauphin Island Sea Lab in Alabama, «but there's no real evidence for a global increase in jellyfish over the past two centuries.»

MHW frequency increased over 82 % of the global ocean between two 17 - year periods at the beginning and end of the record (1982 — 1998 and 2000 — 2016, splitting the time series in half; Fig. 1b).

Surface specific humidity has generally increased after 1976 in close association with higher temperatures over both land and ocean.

Changes in the MHW duration proxy between the two periods showed an increase over 91 % of the global ocean (Fig. 5c).

It's the ocean «These small global temperature increases of the last 25 years and over the last century are likely natural changes that the globe has seen many times in the past.

The westerlies in the Northern Hemisphere, which increased from the 1960s to the 1990s but which have since returned to about normal as part of NAO and NAM changes, alter the flow from oceans to continents and are a major cause of the observed changes in winter storm tracks and related patterns of precipitation and temperature anomalies, especially over Europe.

However, ENSO also increased the mean and variability of MHW duration in the northeast Pacific Ocean (Supplementary Fig. 1E, F), the variability of intensity off Western Australia and California (Supplementary Fig. 1D) and the variability of frequency over much of the Tropics in all ocean basins as well as the mid - and high - latitudes in the Pacific Ocean (Supplementary Fig.Ocean (Supplementary Fig. 1E, F), the variability of intensity off Western Australia and California (Supplementary Fig. 1D) and the variability of frequency over much of the Tropics in all ocean basins as well as the mid - and high - latitudes in the Pacific Ocean (Supplementary Fig.ocean basins as well as the mid - and high - latitudes in the Pacific Ocean (Supplementary Fig.Ocean (Supplementary Fig. 1B).

The observed and projected rates of increase in freshwater runoff could potentially disrupt ocean circulation if global temperatures rise by 3 to 4 °C over this century as forecast by the IPCC 2001 report.

The observed fact that temperatures increases slower over the oceans than over land demonstrates that the large heat capacity of the ocean tries to hold back the warming of the air over the ocean and produces a delay at the surface but nevertheless the atmosphere responds quit rapidly to increasing greenhouse gases.

MHW intensity between 1982 — 1998 and 2000 — 2016 increased in over 65 % of the global ocean, most notably in all five western boundary current regions, where the mean warming has been considerably faster than the global average39, and most mid-latitude ocean basins (Fig. 1e).

Is it the case that evaporation will increase primarily over land while precipitation will rise mostly over oceans?

If it is true, as some studies suggest for example, that El Nino events become more frequent and greater in magnitude due to anthropogenic forcing (this is not yet a settled issue), then, given the established relationship between the El Nino / Southern Oscillation (ENSO) and the extratropical Pacific / North American atmospheric circulation, we might expect increased baroclinicity and greater storminess over a substantial region of the mid-latitude North Pacific ocean and neighboring western U.S..

Global mean temperatures averaged over land and ocean surfaces, from three different estimates, each of which has been independently adjusted for various homogeneity issues, are consistent within uncertainty estimates over the period 1901 to 2005 and show similar rates of increase in recent decades.

Similarly, if as a number of recent studies suggest, anthropogenic climate forcing leads to a greater tendency for the positive phase of the North Atlantic Oscillation (NAO)[or related «Arctic Oscillation» (AO)-RSB- pattern, we would expect increased baroclinicity and storminess over a substantial region of the mid-latitude North Atlantic ocean and neighboring western Europe..

Total column water vapour has increased over the global oceans by 1.2 ± 0.3 % per decade from 1988 to 2004, consistent in pattern and amount with changes in SST and a fairly constant relative humidity.

Our general circulation model simulations, which take into account the recently observed widespread occurrence of vertically extended atmospheric brown clouds over the Indian Ocean and Asia3, suggest that atmospheric brown clouds contribute as much as the recent increase in anthropogenic greenhouse gases to regional lower atmospheric warming trends.

The abstract includes the statement: «Evidence is presented that the recent worldwide land warming has occurred largely in response to a worldwide warming of the oceans rather than as a direct response to increasing greenhouse gases (GHGs) over land.»

«Global mean time series of surface - and satellite - observed low - level and total cloud cover exhibit very large discrepancies, however, implying that artifacts exist in one or both data sets... The surface - observed low - level cloud cover time series averaged over the global ocean appears suspicious because it reports a very large 5 % - sky - cover increase between 1952 and 1997.

The decrease over the last 20 years is well substantiated by observation and is indistinguishable from the calculated decline assuming that the surface ocean is in near thermodynamic equilibrium with increasing CO2 concentration of the atmosphere.

The increase in ocean heat content is much larger than any other store of energy in the Earth's heat balance over the two periods 1961 to 2003 and 1993 to 2003, and accounts for more than 90 % of the possible increase in heat content of the Earth system during these periods.

Study Finds Rising Levels of Plastics in Oceans Photo Some eight million metric tons of plastic waste makes its way into the world's oceans each year, and the amount of the debris is likely to increase greatly over the next decade unless nations take strong measures to dispose of their trash responsibly, new research sugOceans Photo Some eight million metric tons of plastic waste makes its way into the world's oceans each year, and the amount of the debris is likely to increase greatly over the next decade unless nations take strong measures to dispose of their trash responsibly, new research sugoceans each year, and the amount of the debris is likely to increase greatly over the next decade unless nations take strong measures to dispose of their trash responsibly, new research suggests.

The team found that 66 percent of the oceans showed an increase in human stressors over the five - year period.

Increased levels of atmospheric carbon dioxide could also significantly alter ocean temperatures and chemistry over the next century, which could lead to increased and more severe mass bleaching and other stressors on corIncreased levels of atmospheric carbon dioxide could also significantly alter ocean temperatures and chemistry over the next century, which could lead to increased and more severe mass bleaching and other stressors on corincreased and more severe mass bleaching and other stressors on coral reefs.

Photo Some eight million metric tons of plastic waste makes its way into the world's oceans each year, and the amount of the debris is likely to increase greatly over the next decade unless nations take strong measures to dispose of their trash responsibly, new research suggests.