| Analysis of the search query | is atmospheric pressure greater at higher altitudes or at lower altitudes |
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Top competitors on query "is atmospheric pressure greater at higher altitudes or at lower altitudes"
http://usatoday30.usatoday.com/weather/resources/askjack/wameasur.htm Competition: low
(3-5-96) Q: How are meteorologists able to determine jet stream locations and the actual speed of the stream? A: The key way of measuring the jet stream is by sending aloft weather balloons from around the country. And, that he chose 32 to be ice's melting point (also pure water's freezing point) because it was sufficiently high enough above zero to allow his instrument to measure temperatures lower than the freezing point of water without the mercury falling below the zero point
http://sportsci.org/traintech/altitude/wgh.html Competition: low
We predict an athlete will get more performance enhancement by using altitude exposure to reach the permissible limit of red cells in the blood than by using erythropoietin or blood doping to reach the same limit.) Ethics of Altitude Exposure There are two good reasons for banning a practice that enhances performance: either it causes illness or injury, or it gives the athlete a technological advantage that is too expensive or too new for most other competitors to use. What's The Best Way To Get Altitude Exposure? Living up a mountain and coming down to train is just one of six or seven ways to get the effect of altitude exposure while maintaining training intensity
Glossary of Terms: S
http://www.physicalgeography.net/physgeoglos/s.html Competition: low
In normally consists of three components: bed load (pebbles and sand which move along the stream bed without being permanently suspend in the flowing water), suspended load (silts and clays in suspension) and dissolved load (material in solution). Snowfall is most common with the frontal lifting associated with mid-latitude cyclones during fall, winter, and spring months when air temperatures are below freezing
http://www.altitude.org/altitude_sickness.php Competition: low
What causes altitude sickness? There is so much less oxygen in the high mountains that it is not surprising that travelling to high altitude causes people to feel unwell, but how this shortage of oxygen actually leads to altitude sickness is still not fully understood. There are many stories of fit and healthy people being badly limited by symptoms of acute mountain sickness, while their older companions have felt fine
ABC of oxygen: Oxygen at high altitude
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1114067/ Competition: low
This is because the decreased driving pressure for oxygen from alveolar gas into arterial blood is insufficient to fully oxygenate the blood as it passes through the pulmonary capillaries. The cause of acute mountain sickness is not understood but is clearly related to hypoxia and factors such as effort, air temperature, previous viral respiratory tract infection, and innate susceptibility
http://www.nap.edu/openbook.php?record_id=5197&page=295 Competition: low
Volunteers for these studies have ranged from average college students, Army soldiers, and Special Forces Mountain Teams to experienced mountain climbers. Assuming that cold is not a contributing factor, the problems of high-altitude exposure can be initially attributed to the reduction in the partial pressure of oxygen in the ambient atmosphere and the body's subsequent responses
Why do people living at high altitudes usually have more red blood cells than people living at low altitudes
http://wiki.answers.com/Q/Why_do_people_living_at_high_altitudes_usually_have_more_red_blood_cells_than_people_living_at_low_altitudes Competition: low
In an effort to take in as much Oxygen is available to us, the human body increases the number of RBCs in the system, which also would reflect in a higher Haemoglobin count for such people. Because of the decre Why do people living at high altitudes have more red blood cells than people living at sea level? It is the bodies way of adapting to lower amounts of oxygen in the environment
http://kids.earth.nasa.gov/archive/air_pressure/ Competition: low
Since you are breathing fewer molecules of oxygen, you need to breathe faster to bring the few molecules there are into your lungs to make up for the deficit. Do you think a decrease in temperature could be explained in terms of air pressure? How? Air Pressure Experiments 1.While holding your hand on your ribs, take a deep breath and observe what happens to your chest
http://www.ehow.com/how_2277508_acclimate-high-altitudes.html Competition: low
What Happens to the Body When You Change Altitudes? A person typically has 30 to 50 percent more red blood cells, once they acclimate to a certain altitude, ... How to Use Bellows Breathing to Acclimate to an Elevation Bellows breathing is a highly energizing yoga breathing technique that involves rapid but deep breathing to increase alertness
http://www.livestrong.com/article/127091-effects-low-barometric-pressure-ears/ Competition: low
Your inner ear is fluid-filled, and fluids are not compressible; in theory that means there's no reason a change in barometric pressure would aggravate your symptoms. Worsening Meniere's If you have Meniere's syndrome, an inner ear abnormality that can lead to vertigo, dizziness and a sensation of pressure in your ear, your ears may not be able to compensate for pressure changes as well someone without the condition
http://www.colorado.edu/physics/phys1140/phys1140_f98/Experiments/O2/O2.html Competition: low
The pressure change due to an adiabatic volume change depends on whether the gas in question is monatomic, like helium or neon, or diatomic, like the main components or air, oxygen and nitrogen. The transducer output is a DC voltage () which is proportional to the pressure difference between the two ports; when the pressures are the same, the output is 0V
OA Guide to High Altitude: Acclimatization and Illnesses
http://www.princeton.edu/~oa/safety/altitude.html Competition: low
This lasts for up to 12 hours outside of the bag which should be enough time to walk them down to a lower altitude and allow for further acclimatization. If your heart and breathing rates normally slow down in X seconds after exercise, but at altitude your recovery time is much greater, it may mean fluid is building up in the lungs
http://www.weather.com/glossary/a.html Competition: low
AIR POLLUTION The soiling of the atmosphere by contaminants to the point that may cause injury to health, property, plant, or animal life, or prevent the use and enjoyment of the outdoors. Although the position is part of a 21,000 year cycle, currently it occurs around July, when the earth is about 3 million miles farther from the sun than at perihelion
http://www.ilo.org/safework_bookshelf/english?content&nd=857170478 Competition: low
The incidence of cerebral oedema is unclear because it is difficult to differentiate a severe case of acute mountain sickness from a mild case of cerebral oedema. Chronic mountain sickness is characterized by plethora, cyanosis and elevated red blood cell mass leading to neurological symptoms that include headache, dizziness, lethargy and impaired memory
atmospheric pressure - definition of atmospheric pressure by the Free Online Dictionary, Thesaurus and Encyclopedia.
http://www.thefreedictionary.com/atmospheric+pressure Competition: low
At sea level the atmospheric pressure is approximately 1 kilogram per square centimeter (14.7 pounds per square inch), which will cause a column of mercury in a mercury barometer to rise 760 millimeters (30.4 inches). Also called barometric pressure.A Closer Look The weight of the air mass, or atmosphere, that envelopes Earth exerts pressure on all points of the planet's surface
http://www.pbs.org/wgbh/nova/everest/exposure/pressure.html Competition: low
Evangelista Torricelli, one of the first to discover atmospheric pressure, once said, "We live submerged at the bottom of an ocean of the element air." The Earth's gravitational field is pulling on air, and this pull, or "pressure" of air, is called atmospheric pressure. In fact, meteorologists monitor atmospheric pressure at the Earth's surface in order to determine whether the pressure is rising or falling, which helps to predict weather patterns
Why does water boil at a lower temperature at higher altitudes
http://wiki.answers.com/Q/Why_does_water_boil_at_a_lower_temperature_at_higher_altitudes Competition: low
Vapor pressure increases with increasing temperature, so when there is less atmospheric pressure, a smaller vapor pressure is required to get the water boiling, hence a lower boiling temperature. Why is the temperature lower at higher altitudes? Well the short answer is that we live in a sea of air, and lower altitudes have higher air pressure Why are temperatures generally lower at higher altitudes? Multiple reasons
http://www.challengers101.com/Pressure.html Competition: low
And, just as the creatures living at the bottom of the ocean are subjected to the pressure exerted on them by the water, we are subjected to the pressure exerted on us by the atmosphere. How much would the air in this tall, skinny column weigh? Remember the water in the tank above? Each square inch of bottom surface has to support the water above it
http://www.ehow.com/facts_5900925_low-barometric-pressure-headaches.html Competition: low
Predict Your Next Headache Keeping a barometer along with a headache diary has been shown to be an effective way of knowing when your next headache will occur. Physical Effects of Barometric Pressure Changes The Center cited other weather conditions as causes in conjunction with the falling barometric pressure, ..
Altitude - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Altitude Competition: low
Although the term altitude is commonly used to mean the height above sea level of a location, in geography the term elevation is often preferred for this usage. On the flight deck, the definitive instrument for measuring altitude is the pressure altimeter, which is an aneroid barometer with a front face indicating distance (feet or metres) instead of atmospheric pressure
How does the atmospheric pressure at altitudes below sea level compare with atmospheric pressure at sea level? - Yahoo! Answers
http://answers.yahoo.com/question/index?qid=20080604093531AAeojf2 Competition: low
A 3.1-L sample of hydrogen at the same temperature and pressure? has the same mass contains the same number of atoms has a higher density contains the same number of molecules If the atmospheric pressure on Mt. Other Answers (1) by Shaun W Member since: December 28, 2006 Total points: 245 (Level 1) Add Contact Block The link below is to noaa and can be used to calculate the pressure at any elevation
Atmospheric pressure - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Atmospheric_pressure Competition: low
When barometers in the home are set to match the local weather reports, they measure pressure reduced to sea level, not the actual local atmospheric pressure. The highest sea-level pressure on Earth occurs in Siberia, where the Siberian High often attains a sea-level pressure above 1050.0 mbar (105.00 kPa, 30.01 inHg), with record highs close to 1085.0 mbar (108.50 kPa, 32.04 inHg)
(3-5-96) Q: How are meteorologists able to determine jet stream locations and the actual speed of the stream? A: The key way of measuring the jet stream is by sending aloft weather balloons from around the country. And, that he chose 32 to be ice's melting point (also pure water's freezing point) because it was sufficiently high enough above zero to allow his instrument to measure temperatures lower than the freezing point of water without the mercury falling below the zero point
We predict an athlete will get more performance enhancement by using altitude exposure to reach the permissible limit of red cells in the blood than by using erythropoietin or blood doping to reach the same limit.) Ethics of Altitude Exposure There are two good reasons for banning a practice that enhances performance: either it causes illness or injury, or it gives the athlete a technological advantage that is too expensive or too new for most other competitors to use. What's The Best Way To Get Altitude Exposure? Living up a mountain and coming down to train is just one of six or seven ways to get the effect of altitude exposure while maintaining training intensity
Glossary of Terms: S
In normally consists of three components: bed load (pebbles and sand which move along the stream bed without being permanently suspend in the flowing water), suspended load (silts and clays in suspension) and dissolved load (material in solution). Snowfall is most common with the frontal lifting associated with mid-latitude cyclones during fall, winter, and spring months when air temperatures are below freezing
What causes altitude sickness? There is so much less oxygen in the high mountains that it is not surprising that travelling to high altitude causes people to feel unwell, but how this shortage of oxygen actually leads to altitude sickness is still not fully understood. There are many stories of fit and healthy people being badly limited by symptoms of acute mountain sickness, while their older companions have felt fine
ABC of oxygen: Oxygen at high altitude
This is because the decreased driving pressure for oxygen from alveolar gas into arterial blood is insufficient to fully oxygenate the blood as it passes through the pulmonary capillaries. The cause of acute mountain sickness is not understood but is clearly related to hypoxia and factors such as effort, air temperature, previous viral respiratory tract infection, and innate susceptibility
Volunteers for these studies have ranged from average college students, Army soldiers, and Special Forces Mountain Teams to experienced mountain climbers. Assuming that cold is not a contributing factor, the problems of high-altitude exposure can be initially attributed to the reduction in the partial pressure of oxygen in the ambient atmosphere and the body's subsequent responses
Why do people living at high altitudes usually have more red blood cells than people living at low altitudes
In an effort to take in as much Oxygen is available to us, the human body increases the number of RBCs in the system, which also would reflect in a higher Haemoglobin count for such people. Because of the decre Why do people living at high altitudes have more red blood cells than people living at sea level? It is the bodies way of adapting to lower amounts of oxygen in the environment
Since you are breathing fewer molecules of oxygen, you need to breathe faster to bring the few molecules there are into your lungs to make up for the deficit. Do you think a decrease in temperature could be explained in terms of air pressure? How? Air Pressure Experiments 1.While holding your hand on your ribs, take a deep breath and observe what happens to your chest
What Happens to the Body When You Change Altitudes? A person typically has 30 to 50 percent more red blood cells, once they acclimate to a certain altitude, ... How to Use Bellows Breathing to Acclimate to an Elevation Bellows breathing is a highly energizing yoga breathing technique that involves rapid but deep breathing to increase alertness
Your inner ear is fluid-filled, and fluids are not compressible; in theory that means there's no reason a change in barometric pressure would aggravate your symptoms. Worsening Meniere's If you have Meniere's syndrome, an inner ear abnormality that can lead to vertigo, dizziness and a sensation of pressure in your ear, your ears may not be able to compensate for pressure changes as well someone without the condition
The pressure change due to an adiabatic volume change depends on whether the gas in question is monatomic, like helium or neon, or diatomic, like the main components or air, oxygen and nitrogen. The transducer output is a DC voltage () which is proportional to the pressure difference between the two ports; when the pressures are the same, the output is 0V
OA Guide to High Altitude: Acclimatization and Illnesses
This lasts for up to 12 hours outside of the bag which should be enough time to walk them down to a lower altitude and allow for further acclimatization. If your heart and breathing rates normally slow down in X seconds after exercise, but at altitude your recovery time is much greater, it may mean fluid is building up in the lungs
AIR POLLUTION The soiling of the atmosphere by contaminants to the point that may cause injury to health, property, plant, or animal life, or prevent the use and enjoyment of the outdoors. Although the position is part of a 21,000 year cycle, currently it occurs around July, when the earth is about 3 million miles farther from the sun than at perihelion
The incidence of cerebral oedema is unclear because it is difficult to differentiate a severe case of acute mountain sickness from a mild case of cerebral oedema. Chronic mountain sickness is characterized by plethora, cyanosis and elevated red blood cell mass leading to neurological symptoms that include headache, dizziness, lethargy and impaired memory
atmospheric pressure - definition of atmospheric pressure by the Free Online Dictionary, Thesaurus and Encyclopedia.
At sea level the atmospheric pressure is approximately 1 kilogram per square centimeter (14.7 pounds per square inch), which will cause a column of mercury in a mercury barometer to rise 760 millimeters (30.4 inches). Also called barometric pressure.A Closer Look The weight of the air mass, or atmosphere, that envelopes Earth exerts pressure on all points of the planet's surface
Evangelista Torricelli, one of the first to discover atmospheric pressure, once said, "We live submerged at the bottom of an ocean of the element air." The Earth's gravitational field is pulling on air, and this pull, or "pressure" of air, is called atmospheric pressure. In fact, meteorologists monitor atmospheric pressure at the Earth's surface in order to determine whether the pressure is rising or falling, which helps to predict weather patterns
Why does water boil at a lower temperature at higher altitudes
Vapor pressure increases with increasing temperature, so when there is less atmospheric pressure, a smaller vapor pressure is required to get the water boiling, hence a lower boiling temperature. Why is the temperature lower at higher altitudes? Well the short answer is that we live in a sea of air, and lower altitudes have higher air pressure Why are temperatures generally lower at higher altitudes? Multiple reasons
And, just as the creatures living at the bottom of the ocean are subjected to the pressure exerted on them by the water, we are subjected to the pressure exerted on us by the atmosphere. How much would the air in this tall, skinny column weigh? Remember the water in the tank above? Each square inch of bottom surface has to support the water above it
Predict Your Next Headache Keeping a barometer along with a headache diary has been shown to be an effective way of knowing when your next headache will occur. Physical Effects of Barometric Pressure Changes The Center cited other weather conditions as causes in conjunction with the falling barometric pressure, ..
Altitude - Wikipedia, the free encyclopedia
Although the term altitude is commonly used to mean the height above sea level of a location, in geography the term elevation is often preferred for this usage. On the flight deck, the definitive instrument for measuring altitude is the pressure altimeter, which is an aneroid barometer with a front face indicating distance (feet or metres) instead of atmospheric pressure
How does the atmospheric pressure at altitudes below sea level compare with atmospheric pressure at sea level? - Yahoo! Answers
A 3.1-L sample of hydrogen at the same temperature and pressure? has the same mass contains the same number of atoms has a higher density contains the same number of molecules If the atmospheric pressure on Mt. Other Answers (1) by Shaun W Member since: December 28, 2006 Total points: 245 (Level 1) Add Contact Block The link below is to noaa and can be used to calculate the pressure at any elevation
Atmospheric pressure - Wikipedia, the free encyclopedia
When barometers in the home are set to match the local weather reports, they measure pressure reduced to sea level, not the actual local atmospheric pressure. The highest sea-level pressure on Earth occurs in Siberia, where the Siberian High often attains a sea-level pressure above 1050.0 mbar (105.00 kPa, 30.01 inHg), with record highs close to 1085.0 mbar (108.50 kPa, 32.04 inHg)
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