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Topic: Low pressure system

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	Encyclopedia: Low pressure area (Site not responding. Last check: 2007-10-22)
		A low pressure area, or a low for short, is a region where the atmospheric pressure is lowest with relation to the surrounding area.
		Surface low pressure systems will tend to be smaller in area and have stronger surface winds than a given high pressure system, due to the addition of surface friction to the pressure gradient force and coriolis effect that drive the circulation.
		The pressure gradient force is the force that is usually responsible for accelerating a parcel of air from a high atmospheric pressure region to a low pressure region, resulting in wind.
	www.nationmaster.com /encyclopedia/Low-pressure-area (845 words)

	High and Low Pressure Systems
		Low pressure systems that travel across the Northern Hemisphere (better known as mid-latitude cyclones and more loosely known as lows, cyclones or storm systems) typically develop, intensify and dissipate over periods of 3 to 4 days.
		High pressure systems, on the other hand, tend to be of two types: either the semi-permanent systems that occupy the central portions of the Pacific and Atlantic Oceans, or the large systems that represent the large domes of cold (cool) air that invade southern latitudes following the passage of lows.
		Low pressure systems are marked by low-level convergence, upper-level divergence, rising motion, and clouds.
	okfirst.ocs.ou.edu /train/meteorology/HiLowSystems.html (663 words)

	Atmospheric pressure - Encyclopedia.WorldSearch (Site not responding. Last check: 2007-10-22)
		Air masses are affected by the general atmospheric pressure within the mass, creating areas of high and low pressure.
		Atmospheric pressure is often measured with a mercury barometer, and a height of approximately 30 inches of mercury is often used to teach, make visible, and illustrate (and measure) atmospheric pressure.
		In terms of city water pressure, one atmosphere is approximately one half to one quarter the pressure of typical city water mains (i.e.
	encyclopedia.worldsearch.com /atmospheric_pressure.htm (911 words)

	Top Story - ATMOSPHERIC WAVE LINKED TO SEA ICE FLOW NEAR GREENLAND, STUDY FINDS - August 28, 2002
		Low pressure or cyclonic circulation is depicted in blues and purples where atmospheric pressure is as low, or lower than 1004 millibars, or 29.65 inches of mercury.
		Because a center of low pressure is situated to the east of the Strait during the Eastward mode, more sea ice is forced through the Strait by the southerly winds associated with this low.
		Whenever this secondary low pressure system exists, wave 1 shifts eastward and is said to be in its eastward phase, as opposed to a westward phase.
	www.gsfc.nasa.gov /topstory/20020807seaice.html (1129 words)

	USATODAY.com (Site not responding. Last check: 2007-10-22)
		Low pressure systems have different intensities with some producing a gentle rain while others produce hurricane force winds and a massive deluge.
		If the low pressure area is the center of a Northern Hemisphere extratropical storm, a steady rain or snow can fall to the north of the warm front as warm moist air from the south rises up and over the cold air ahead of the warm front.
		Due to the counterclockwise circulation around low pressure areas in the Northern Hemisphere, cold air will likely be found to the north and west of low pressure areas while warm air is most often found to the south and east of low pressure areas.
	www.usatoday.com /weather/tg/wlowpres/wlowpres.htm (227 words)

	Causes of Variability in the Aleutian Low (Site not responding. Last check: 2007-10-22)
		The Aleutian low in the North Pacific is a primary driver of the local oceanic and ecosystem variability.
		The changes in the mean sea level pressure before and after the regime shifts in the late 70's and the early 90's are ~7 mb or 33% of the amplitude of the Aleutian low.
		The sea level pressure increase in the North Pacific in the 90's was accompanied by a large pressure decrease in the Arctic.
	www.pmel.noaa.gov /~miletta/pices.html (382 words)

	Mr. Burns' Science Page: Low Pressure Systems (Site not responding. Last check: 2007-10-22)
		Low pressure systems are important in understanding our weather in the Poconos.
		When the variation in pressure is lower than the surrounding areas, we have a low pressure system.
		Because of this difference in pressure, winds begin to move from the higher pressure areas to the lower.
	home.epix.net /~tgburns/lowpres.html (558 words)

	Glossary : Low or Low-Pressure System (Site not responding. Last check: 2007-10-22)
		Since air always moves from areas of high pressure to areas of low pressure, air from these adjacent areas of higher pressure will move toward the low pressure area to equalize the pressure.
		The air eventually rises near the center of the low, causing cloudiness and precipitation.
		The air in a low rotates in a counterclockwise direction in the Northern Hemisphere, and in a clockwise direction in the Southern Hemisphere.
	www.windows.ucar.edu /glossary/glossary_low-pressure_system.html (153 words)

	Low (atmospheric) -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-22)
		A low, or a low pressure area, is a region where the atmospheric pressure is lowest with relation to the surrounding area.
		Many of the worlds (A forest with heavy annual rainfall) rainforests are associated with these climatological low pressure systems.
		Thermal lows also form over areas such as (A desert area in eastern California and southern Nevada; the lowest point in North America) Death Valley as the result of intense ground heating; they are much smaller in geographic extent than either convergence lows or frontal lows.
	www.absoluteastronomy.com /encyclopedia/l/lo/low_(atmospheric).htm (252 words)

	Tippmann Marker Systems (Site not responding. Last check: 2007-10-22)
		The Response Trigger System increases your trigger speed by resetting the trigger and sear with excess gas during firing.
		The new A-5 Comp Air System consists of a lighter rear bolt, new valve assembly, low pressure feeder gas line, 90 degree elbow, 7 3/4” gas line, and a low pressure chamber and vertical assembly.
		CO2 changes pressure as the temperature changes, the higher the temperature the higher the pressure.
	www.blast-em-paintball.com /tippmann/systems.html (929 words)

	Atlantic Hurricane report - September 27th, 2005 (Site not responding. Last check: 2007-10-22)
		A small circular low pressure system began moving westward from the African coast (at the bottom of the graphics as denoted once again by a red line, and you can also see a 'hump' in the green high pressure region around this low which moves with it as it tracks westward).
		The upper level high pressure ridge over the Atlantic is responsible for tracking the low pressure system westward, and as of the 27th, it continues to be positioned to funnel hurricanes into the Gulf of Mexico.
		This High Pressure system over the Atlantic is a permanent feature (the region is called the Horse Latitudes, and is positioned between the Westerlies (in the North) and the Trade Winds near the Equator, and is usually centered around 30 degrees in latitude.
	www.awitness.org /column/w27.html (463 words)

	Lows without Fronts: Hawaii Weather Patterns
		Generally, the rainiest weather occurs when the Low forms to the west of the Islands, as in the satellite image.
		Kona Lows should not be confused with Kona weather, which refers to generally clear skies, hot and humid conditions, and light and variable winds, usually from the southwest.
		These systems move from east to west over the Islands with the trade winds and can bring heavy rainfall and thunderstorms in summer as they temporarily displace the inversion.
	apdl.kcc.hawaii.edu /~earth/low.htm (546 words)

	Re: more high low pressure dabate
		Therefore lets say that this totals to be 1.2 psi of total outlet pressure with a variance of.05 psi in a low pressure system and in a high pressure system it is 20psi with a similar variance of.05 psi.
		The final pressure difference for a low pressure system is 0.136 to 0.264 or about 32% swing from the ideal 0.2 psi.
		With the outlet pressure of the system now ranging from 19.95 to 20.05 we can recalculate the worst case of the pressure differential and find the final outlet pressure will be between -0.07 and 0.452 psi.
	fins.actwin.com /aquatic-plants/month.9905/msg00159.html (700 words)

	Tuesday Daily Weather Summary
		The low pressure system in Nebraska is forecast to continue moving southeastward across the Plains by Tuesday morning.
		The strong winds were the result of the strong pressure gradient that developed between the deepening low pressure system and higher air pressure to the west and south of the system.
		The strong pressure gradient between the high pressure cell across interior Alaska and the low over British Columbia was responsible for some strong winds from the east along the Gulf of Alaska coast, especially at those locations where the winds were channeled through mountain passes.
	www.aos.wisc.edu /~hopkins/online/spring/990ptsum.htm (2149 words)

	Welcome to Charlotte County Utilities!! (Site not responding. Last check: 2007-10-22)
		For low pressure sewer, CCU owns, and is responsible for, the low pressure sewer tank and pump.
		However, improper use of the low pressure sewer system resulting in unnecessary maintenance, is the responsibility of the customer.
		The system was approved by the Florida Department of Environmental Protection in June 1981 and is commonly used today.
	www.charlottecountyfl.com /ccu/FAQs/faq7.htm (846 words)

	Wednesday Daily Weather Summary
		By Wednesday morning the low pressure system is expected to have continued eastward, reaching the Upper Potomac River Valley of northern Virginia and western Maryland.
		The cold front trailing the low pressure system is expected to pass across the Olympic Peninsula and Puget Sound during the early hours of Wednesday.
		Another low pressure located to the west of Prince Rupert, BC was moving to the northeast, close to southern tip of the Panhandle.
	www.aos.wisc.edu /~hopkins/online/fall/2006wsum.htm (1539 words)

	Maintaining Your Low Pressure Pipe System - Fact Sheet 3 (Site not responding. Last check: 2007-10-22)
		Failing systems are expensive to repair or replace and poor maintenance is a common cause of premature system failure.
		In contrast, replacing a failing system with a new one typically costs from $3,000 to $10,000, assuming you have enough property to install the replacement system.
		A low pressure pipe system was specified for your building location because of some limiting factor(s) in the soil.
	www.watershedcommittee.org /publications/fact_sheets/fact_sheet_3.htm (1451 words)

	BioMagic OdorStop, Sample low pressure misting system for Composting area (Site not responding. Last check: 2007-10-22)
		For the system to function at the highest level of odor control, the following factors should be considered in the design of the misting system.
		Considering that most odors are lighter than air, the misting system should treat the air above the composting operation and consideration of the prevailing wind should determine the placement and the amount of coverage outside of the composting area.
		The output of the Dosatron is connected to the overhead misting system by PVC pipe.
	www.biomagic.com /mist.html (867 words)

	NSFC FRD-10 Pressure/Low Pressure Pipe System
		Pressure and low pressure pipe (LPP) systems are shallow, dosed soil absorption systems.
		The effluent flows by gravity from the pretreatment system to the pump chamber.
		When a predetermined level within the pump chamber is reached (usually marked by a float control), the pump forces the effluent through the distribution lines under pressure.
	www.nesc.wvu.edu /nsfc/frd-10/pressurelow.htm (83 words)

	Ceilidh ... Re: low Pressure System (Site not responding. Last check: 2007-10-22)
		When you have a system of this nature up and running, you usually have the motor running all of the time, because the amperage draw for a motor of this size simply kills the electric meter when it is turned on and off all of the time.
		If this is not enough to keep the oil in a cool state (constant heat breaks the oil down, causing it to deteriorate, which then becomes a disposal problem) you have to add either an air cooled heat exchanger with a fan, or go to a water cooled unit.
		All of the related components of the system are smaller (the press frame is smaller, making it stronger as it does not have to bridge so far to the other vertical upright).
	www.bonnydoonengineering.com /ceilidh/d19d3224IGz-3507-890+00.htm (581 words)

	Frontal low pressure system: Newfoundland and Labrador Heritage (Site not responding. Last check: 2007-10-22)
		The cloud patterns visible on this GOES satellite image illustrate features typical of mid-latitude frontal low pressure systems affecting eastern Canada, including Newfoundland, throughout the year, particularly during fall, winter and spring.
		On this occasion an area of low pressure covers the Great Lakes region, with associated layers of cloud at various elevations, the tops of which strongly reflect the sunlight, therefore appearing as bright, near-white masses on the image.
		West of this warm air sector is the cold front, which is advancing eastward from the eastern seaboard of the U.S. It marks the leading edge of cool, drier, continental air, and is recognisable on the visual image as a narrower NE-SW line of bright, (i.e.
	www.heritage.nf.ca /environment/front.html (166 words)

	Blood Cancer Low Pressure
		For your convenience we have provided a listing of "Blood Cancer Low Pressure" topics that may be of interest to you.
		Low Blood Pressure - Depression symptoms, causes, and treatments including clinical and manic depression.
		of 65, low blood pressure is just as big a health risk, increasing the chances of dying from cancer or lung...
	www.cancer-directory.com /cancer/3/blood-cancer-low-pressure.html (1186 words)

	Optimization of Hollow-Fiber Design and Low-Pressure Membrane System Operation (Site not responding. Last check: 2007-10-22)
		A multidimensional optimization of an ultrafiltration system is formulated for cost minimization and numerically solved for key optimal design and operating variables.
		Hollow-fiber ultrafiltration operation under steady-state conditions is assumed and optimized with respect to fiber radius, fiber length, crossflow velocity, transmembrane pressure, and system recovery.
		For typical small to moderately sized low-pressure membrane facilities (≈1 mgd), optimal fiber design and membrane system operation is predicted to be largely influenced by the characteristic dominance of capital costs over operating costs.
	www.pubs.asce.org /WWWdisplay.cgi?0102028 (261 words)

	Blood pressure - low (Site not responding. Last check: 2007-10-22)
		Low blood pressure is an abnormal condition where a person's blood pressure (the pressure of the blood against the walls of the blood vessels during and after each beat of the heart) is much lower than usual, which can cause symptoms such as dizziness or lightheadedness.
		When the blood pressure is too low, there is inadequate blood flow to the heart, brain, and other vital organs.
		Another common cause type of low blood pressure is orthostatic hypotension, which results from a sudden change in body position, usually from lying down to an upright position.
	pennhealth.com /ency/article/003083.htm (510 words)

	Atmospheric Pressure: The force exerted by the weight of air
		ir pressure is the force exerted on you by the weight of tiny particles of air (air molecules).
		Barometers are used to measure the current air pressure at a particular location in "inches of mercury" or in "millibars" (mb).
		If a high pressure system is on its way, often you can expect cooler temperatures and clear skies.
	kids.mtpe.hq.nasa.gov /archive/air_pressure (604 words)

	Volume low pressure (Site not responding. Last check: 2007-10-22)
		Consequently, the total pressure upstream from the nozzle is the velocity pressure at the nozzle outlet - and the volume of low is easily calculated.
		Evaluation of high volume,low pressure endotracheal tube cuff for appropriate intracuff pressure by nurse anesthetists in general anesthesia.
		If the velocity is low, you need to increase the regulator pressure to increase the air volume.
	getinfoeasy.com /q/volume-low-pressure.html (842 words)

	Nova APM 800 Low Pressure Mattress System
		The APM-8000 therapy low pressure system has 8" deep cell floatation designed for use in long term or home care settings.
		One of the most convenient systems for the treatment of pressure ulcers, this system offers easy installation, operation and pressure relief performance.
		Cells are alternated by the pump every five minutes for 50 hz or 4 minutes for 60 hz.
	www.phc-online.com /nova_8000.htm (144 words)

	Low Pressure System - BC Adventure Network (Site not responding. Last check: 2007-10-22)
		posted March 08, 2004 12:13 PM I realize that an advancing low pressure system has a generally negative effect on the success rate of fishing.
		However, I agree with you that there can at times, be good fishing while still under the influence of a low pressure system.
		It seems like as the system is still advancing on a particular area, and the pressure is still changing that I am noticing the most difference.
	www.bcadventure.com /adventure/forums/Forum2/HTML/021690.html (405 words)

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