Sentences with phrase «sea level pressure decreases»

Variability in sea level pressure decreases on average in the Southern Hemisphere, while in the Northern Hemisphere there are regional differences.»

Not exact matches

These cyclones are characterized by strong localized drops in sea level pressure, and as Arctic - wide decreases in sea level pressure are one of the expected results of climate change, this could increase extreme Arctic cyclone activity, including powerful storms in the spring and fall.

A new study in Geophysical Research Letters uses historical climate model simulations to demonstrate that there has been an Arctic - wide decrease in sea level pressure since the 1800's.

Air pressure decreases with an increase of altitude - about one millibar (0.03 inches of mercury) per 27 feet (8.23 m) close to sea level.

Freshwater injection into the North Atlantic and Southern oceans increases sea level pressure at middle latitudes and decreases it at polar latitudes (Figs. 20, S22), but the impact is different in the North Atlantic than in the Southern Ocean.

Impact of ice melt on storms Freshwater injection onto the North Atlantic and Southern Oceans causes increase of sea level pressure at middle latitudes and decrease at polar latitudes.

Radiation from the atmosphere's greenhouse gases is narrow - band, even at sea level but increasingly so at higher altitudes as the effect of pressure - broadening decreases.

Sea level pressure changes in the two solstice seasons from a GCM simulation with increased sea surface temperature gradient minus a simulation with a decreased gradient in the Atlantic (top row), in the Pacific (middle row), and increased gradient in the Atlantic along with a decreased gradient in the Pacific minus the reverse (bottom roSea level pressure changes in the two solstice seasons from a GCM simulation with increased sea surface temperature gradient minus a simulation with a decreased gradient in the Atlantic (top row), in the Pacific (middle row), and increased gradient in the Atlantic along with a decreased gradient in the Pacific minus the reverse (bottom rosea surface temperature gradient minus a simulation with a decreased gradient in the Atlantic (top row), in the Pacific (middle row), and increased gradient in the Atlantic along with a decreased gradient in the Pacific minus the reverse (bottom row).

However, if the temperature warms, or the pressure is reduced (for instance if local sea level decreases), the hydrate will break up and release the methane as gas which can bubble up through the ocean and enter the atmosphere.

This is important in that the atmospheric circulation trends over the Antarctic vary substantially by season, with summer and autumn exhibiting decreases in sea level pressure over the circumpolar trough and over the continent.

In response to increasing concentrations of greenhouse gases and tropospheric sulfate aerosols, the multimodel average exhibits a positive annular trend in both hemispheres, with decreasing sea level pressure (SLP) over the pole and a compensating increase in midlatitudes.

--- Atmospheric mass and composition: approx. 510 trillion m ^ 2 (surface area) * 0.1013 MPa (surface pressure) / 9.81 m / s ^ 2 = 5.266 E18 kg = 5.266 million Gt Hartmann, «Global Physical Climatology», p. 8 gives 5.136 million Gt (the difference could be due to actual average surface pressure being lower than average sea level pressure; counteracting that, gravity decreases with height (not much over most of the mass of the atmosphere) and I think global average g may be less than 9.81 (maybe 9.80?)