Mean
sea level pressure for 1 — 15 July 2011 (left) and 16 — 31 July 2011 (right).
The map of
sea level pressure for October 1 to 30, 2010, shows a high - pressure system cenetered over the Beaufort and Chukchi sea and Greenland, and low pressure over the Kara and Barents seas.
Sea level pressure for May to early June.
Sea level pressure for March and April.
Difference in
sea level pressure for July 2008 minus July 2007.
Not exact matches
For now, Rep. Todd Akin remains in the race, though the
pressure being brought on him to drop his Senate bid in a state that's hotly contested at the presidential
level is surely enough to crush a deep -
sea subamarine.
Researchers had previously suggested that a substantial fraction of the tenuous shroud, which has a surface
pressure about one - billionth that of Earth's atmosphere at
sea level, turns to frost
for the 2 hours that Io lies in Jupiter's shadow.
For this reason, he and his colleague predict the Moon condensed in a
pressure of more than 10 bar, or roughly 10 times the
sea level atmospheric
pressure on Earth.
For every hurricane in the North Atlantic Basin between 1997 and 2013, they pulled information such as mean
sea -
level pressure and temperature as well as vertical temperature and humidity profiles, and entered it into a thermodynamic hurricane model that treats each storm as a gigantic heat engine.
Fisher's pen makes up
for a lack of gravity by storing ink in a cartridge pressurized with nitrogen at 35 pounds per square inch — more than twice as much force as
sea -
level atmospheric
pressure on Earth.
For example, one 1965 study by researchers at the Brooks Air Force Base in Texas showed that dogs exposed to near vacuum — one three - hundred - eightieth of atmospheric pressure at sea level — for up to 90 seconds always surviv
For example, one 1965 study by researchers at the Brooks Air Force Base in Texas showed that dogs exposed to near vacuum — one three - hundred - eightieth of atmospheric
pressure at
sea level —
for up to 90 seconds always surviv
for up to 90 seconds always survived.
They wrote that their comparisons of
sea -
level pressures,
sea - surface temperatures and land - based air temperatures provided «consistent evidence
for strong» regulation of temperatures by changes in ocean cycles «from monthly to century time scales.»
For comparison, the atmospheric
pressure on Earth at
sea level is 1,000,000 microbars (or 1 bar).
195º Low simmer 210º High simmer 212º Boiling water at
sea level; light or vigorous boil 213º - 214º Boiling temperature of salted or sugared water; 1 teaspoon per quart 250º Maximum
pressure cooker temperature 250º Butter smoke point 300º
For seasoning lightly oil - coated pans in the oven 325º Water drops dance on skillet surface 325º Black pepper burning point 350º Clarified butter smoke point
For example, a car equipped with a turbocharger that maintains a constant 200 kpa of absolute
pressure will produce the same horsepower at
sea level and at 10k above
sea level.
So taking your car and measuring HP on a dynojet at
sea level will produce different horsepower than a calibrated dynojet at 10k feet elevation (the dyno can adjust
for the altitude, but what if the car's boost controller works with absolute
pressure and not relative?
The smallest warming /
sea level rise in TAR figure 5 will place a wide range of human and natural systems under very considerable
pressure (and based on estimates of the melt - down point
for greenland place us teetering on the edge of dangerous climate change).
This approach may not be useful
for quantitative reconstructions of past spatial patterns of climate fields, e.g. surface temperature,
sea level pressure, drought, etc..
At the ocean surface, the
sea level response to barometric
pressure is theoretically 10 mm per hectopascal change in mean
pressure (See Gill, A.E., 1982, Atmosphere - ocean dynamics: San Diego, Academic Press, Inc., 662 p.
for a derivation).
The change in May is explained by the
sea level pressure (SLP) and air temperature anomaly field
for May (Figure 8, top).
The models are gauged against the following observation - based datasets: Climate Prediction Center Merged Analysis of Precipitation (CMAP; Xie and Arkin, 1997)
for precipitation (1980 — 1999), European Centre
for Medium Range Weather Forecasts 40 - year reanalysis (ERA40; Uppala et al., 2005)
for sea level pressure (1980 — 1999) and Climatic Research Unit (CRU; Jones et al., 1999)
for surface temperature (1961 — 1990).
Arbetter, 4.7, Statistical A statistical model using regional observations of
sea ice area and global NCEP air temperature,
sea level pressure, and freezing degree day estimates continues the trend of projecting below - average summer
sea ice conditions
for the Arctic.
Relationship Between
Sea Level and Bottom
Pressure on Climate Scales — Implications
for Assessing Heat Content and Deep Variability
In turn, this change in
sea -
level pressure initiates a positive Victoria Mode phase
for the North Pacific.
Christopher G. Piecuch; Katherine J. Quinn; Rui M. Ponte (2012) Relationship Between
Sea Level and Bottom
Pressure on Climate Scales — Implications
for Assessing Heat Content and Deep Variability.
Given the increased
levels of certainty regarding human - induced global warming (from 90 to 95 %), more robust projections on
sea -
level rise and data on melting of ice sheets, and the «carbon budget»
for staying below the 2 °C target, the WGI conclusions together with other AR5 component reports are likely to put more
pressure on the UNFCCC parties to deliver by 2015 an ambitious agreement that is capable of preventing dangerous anthropogenic interference with the climate system.
Knowledge of the relationship between bottom
pressure pb and
sea level ζ is important
for understanding ocean circulation and climate.
Bolin & Eriksson's «buffer» factor would give about 10 times higher CO2 concentration in air vs.
sea water at about 0.0003 atmospheres CO2 partial
pressure, increasing dramatically to an air / water CO2 partition coefficient of about 50:1 at a CO2 partial
pressure of about 0.003 atmospheres (10 times the assumed pre-industrial
level; Bacastow & Keeling, 1973; see Section 7 below
for more on the «buffer» factor).
Lukovich et al. (Centre
for Earth Observation Science, U. of Manitoba); 4.6; Heuristic - Dynamics Investigation of dynamical atmospheric contributions in spring to
sea ice conditions in fall, based on comparison of 2011 and 2007 stratospheric and surface winds and
sea level pressure (SLP) in April and May suggests regional differences in
sea ice extent in fall, in a manner consistent with recent studies highlighting the importance of coastal geometry in seasonal interpretations of
sea ice cover (Eisenman, 2010).
The figure below (Figure 5 a-c) provided by Cecilia Bitz, and similar plots provided by Oleg M. Pokrovsky and the NIC Group, shows the
sea level pressure field centered over the Northern Hemisphere
for July 2008, July 2007, and
for July average conditions (climatology).
Results are shown
for the lower stratosphere (100 mb), the mid-troposphere (500 mb) and the surface (
sea level pressure).
Map of
sea level pressures (SLP)
for July 1 - 19 showing low SLP over the central Arctic Ocean, a pattern that brought cooler and cloudier conditions.
Obviously you are not aware that the decadal variability of ENSO is not in synch with the PDO: The graph is from this post: http://bobtisdale.wordpress.com/2011/06/30/yet-even-more-discussions-about-the-pacific-decadal-oscillation-pdo/ The reasons
for the differences are of course due to the influence of
sea level pressure on the PDO.
I challege you to find the
sea level data at UCB that haven't been corrected
for basin movement, seaonality, salinity, barometric
pressure, etc..
The normal
sea level pressure climatology
for the summer Arctic has been a flat field or a weak monthly mean low
pressure center over the Arctic.
Sea level pressure pattern
for the Arctic showing the return of the Arctic Dipole
pressure pattern in August 2010.
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.
They wrote that their comparisons of
sea -
level pressures,
sea - surface temperatures and land - based air temperatures provided «consistent evidence
for strong» regulation of temperatures by changes in ocean cycles «from monthly to century time scales.»
[Ankh]:» «As
for CO2 itself, the old measurements made at
sea -
level pressure had little to say about the frigid and rarified air in the upper reaches of the atmosphere, where most of the infrared absorption takes place.
The E-OBS holds gridded data
for daily values of the precipitation amount, the daily mean -
sea -
level pressure and the daily maximum, mean and minimum temperatures from January 1950 onward.
Though there can be significant differences in regional surface impacts between one SSW event and another, the typical pattern includes changes in
sea level pressure resembling the negative phase of the North Atlantic Oscillation (NAO) / Arctic Oscillation (AO), (representing a southward shift in the Atlantic storm track), wetter than average conditions
for much of Europe, cold air outbreaks throughout the mid-latitudes, and warmer than average conditions in eastern Canada and subtropical Asia (see figure below, left panel).
So, «
For example, air at
sea level, and saturated with water vapor at 20 °C, has partial
pressures of about 23 mbar of water, 780 mbar of nitrogen, 210 mbar of oxygen and 9 mbar of argon.»
Sea level pressure in the polar and sub polar regions are measured in the Southern and Northern Annular Modes — the changes in sea level pressure creates the potential for the anomalous movement of atmospheric mass into lower latitud
Sea level pressure in the polar and sub polar regions are measured in the Southern and Northern Annular Modes — the changes in
sea level pressure creates the potential for the anomalous movement of atmospheric mass into lower latitud
sea level pressure creates the potential
for the anomalous movement of atmospheric mass into lower latitudes.
The profiles
for mean
sea level (MSL)
pressure for the Northern Hemispheric winter (DJF) are shown below.
Yet
for some reason people persist in saying the surface temperature of Venus, which is closer to the sun and has an atmospheric
pressure 96times that of Earth at
sea level, is the result of «a runaway Greenhouse Effect».
It is circular because the references
for saturation
pressure vary with the freezing and boiling point of water that would vary with
sea level and composition of the gas if I read the equations correctly.
Multi-model mean changes in surface air temperature (°C, left), precipitation (mm day — 1, middle) and
sea level pressure (hPa, right)
for boreal winter (DJF, top) and summer (JJA, bottom).
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For example, air at
sea level, and saturated with water vapor at 20 °C, has partial
pressures of about 23 mbar of water, 780 mbar of nitrogen, 210 mbar of oxygen and 9 mbar of argon.»
At the same time, the tidal
level has increased by some 3 inches (8 centimeters)
for several reasons, including organic structure growth on the barrier reef in the lagoon basin and changes in atmospheric
pressure and wind action on the Adriatic
Sea.