Is the high air pressure of 500 hPa opposite to its corresponding ground?

The high air pressure of 500 Pa is the opposite of the other corresponding ground, I think of course it is the opposite, and this is also a special formula, and there is such a relevant provision on his principle.

Whether it is high altitude or low air pressure, it has a lot to do with the local pressure, and all of them are directly proportional to the pressure.

They are definitely suitable for this enterprise and the opposite of the ground, and it is generally physical common sense in the state, so it must be studied well.

This is indeed the case, and in general, it is indeed the opposite, because only in this way can a good effect be achieved, relatively speaking, it is better.

The atmospheric pressure at high altitude is different from the atmospheric pressure at the ground.

Because the atmospheric pressure gradually decreases as the altitude increases, there is a difference in air pressure.

Don't buy dad the elegant experience with other its counterpart to the ground reflected, he has no big reaction with the ground.

This air voltage should not be opposite to its ground, so you can measure its air pressure with this voltage.

The high air pressure is the opposite of the other applications on the ground, and they must have deliberately not wanted to fight.

High air pressure is not the opposite of other coping surfaces, some are opposite, some are not?

He must have the opposite of the ground, and so did the air pressure.

Is it the opposite of it? Definitely, this one has to be the opposite, otherwise it's too scary.

Is 500 beats high air pressure the opposite of other ground? He is adapted to the ground, adapted.

It's possible to be the opposite, take a look at what you've encountered and see what real logical thinking skills are that you don't understand what problems can be directed to.

A test question analysis: According to the elevation of 500 hPa, it can be judged that the elevation at m is low pressure, and the elevation at n is high chaotic collapse pressure, and the air pressure near the ground is opposite to the high altitude, so A is high pressure and B is low pressure. There may be a frontal cyclone at low pressure. Select A for this question.

Comments: The difficulty of this question is medium, and the key to solving this question is to clarify the bending shape of the isobaric surface: the isobaric side of the high-pressure area is convex upward, and the low-pressure area is concave downward; The air pressure near the surface is opposite to the high and low values of the high air pressure and is distributed in an axisymmetric manner.

Methods and techniques] Interpretation steps of isobaric surfaces.

Step 1Interpret the level of air pressure.

The basis for judging the level of air pressure and the interpretation ideas are as follows:

1) The law of vertical decline in air pressure. As the density of the atmosphere decreases with the increase of altitude, the height of the air column borne by the atmosphere at different altitudes is different, resulting in a decrease in the air pressure in the vertical direction with the increase of altitude, as shown in the figure below, in the air column L1, Pa > Pa, PD> PD; In L2, PB > PB, PC > PC.

2) The air pressure at each point on the same isobaric surface is equal. As shown in the figure above, PD PC, PA PB.

In summary, it can be seen that PB>PA>PD>PC.

Step 2Interpret the convex and concave sides of the isobaric surface.

Due to the uneven heat and cold of the ground, there is a difference in air pressure on the surface next to the same horizontal source, which causes the isobaric surface to bend. The convex high part of the isobaric surface is high pressure, and the concave low part is low pressure, which can be vividly remembered as "high convex and low concave". In addition, the near-hail oak ground is in the opposite direction of the high-altitude isobaric surface bulge.

As shown in the figure below).

Step 3Determine the hot and cold conditions near the ground and the properties of the underlying surface.

It can be judged according to the following ideas: The bending condition of the isobaric surface? How high is the air pressure near the ground?

According to the temperature and pressure relationship, how high and low is the air temperature? According to the thermal differences of different underlying surfaces, the properties of the underlying surfaces are interpreted, such as the high pressure may correspond to the sea in summer (land in winter), green space during the day (bare ground at night), and the suburbs of the city.

Step 4Determine the weather conditions and diurnal differences near the ground.

It can be judged according to the following ideas: The bending condition of the isobaric surface? How high is the air pressure near the ground? Interpret the weather conditions (low pressure and rainy weather, high pressure and sunny weather)?The size of the diurnal range (large day difference on sunny days and small day difference on cloudy days).

What you are asking does not belong to the geography knowledge of the first year of high school, this is a question of aviation.

According to the flight altitude, it is divided into:

Low-altitude flight (altitude of 100--1000m, can be used for training, parachute, airdrop, reconnaissance, strong attack and agricultural and forestry operations, etc.).

Medium-altitude flight (altitude between 1000 and 7000 m, which can be used for training, patrol, bombing and route flight).

High-altitude flight (altitude at 7000-15000m, can be used for training, reconnaissance, bombing, interception, patrol and route flight).

Ultra-high-altitude flight (altitude greater than 15000m, can be used for reconnaissance, volley, etc.).

There are many kinds of high-altitude divisions in China, generally 0-3000 is low-altitude (above 700hpa), 3000-6000 is medium-high altitude (400-700hpa), and above 6000 is high-altitude (below 400hpa).

The air pressure values at high altitude and near the ground are not required to be mastered, so it is recommended not to spend time here, and the specific topics will tell us the most adequate conditions.

To be honest, I am also a freshman in high school, and the teacher said that there is no need to distinguish this, because you only need to know that the horizontal pressure gradient force is from high pressure to low pressure.

Hello to know the user, the answer is as follows: satisfied:

The correspondence between air pressure and altitude.

The average altitude of 1000 hPa is 0 meters above sea level;

The average altitude of 950 hPa is about 700 meters;

850 hPa has an average altitude of about 1,500 meters;

The average altitude of 700 hPa is about 3,000 meters;

The average altitude of 500 hPa is about 5,500 meters;

The average altitude of 400 hPa is about 7000 meters;

300 hPa has an average altitude of about 9,000 meters;

250 hPa at an average altitude of about 10,000 meters;

The average altitude of 200 hPa is about 12,000 meters above sea level;

The average altitude of 150 hPa is about 14,000 meters;

The average altitude of 100 hPa is about 16,000 meters.

Your question. 500hpa at an altitude of 5500m. There is a calculation formula, but because the atmospheric density in the vertical direction is not uniform, it is more complicated and does not need to be mastered.

The above table is a check-up, and for people who study meteorology, they are all constants. I carried it, but I forgot it. Usually altimeters are also made on this principle.

Hehe. It's just very, very small.

You're as tall as a glass of water! Is that what you ask?

Normally, the pressure value near the ground is about 1010 hPa, and the altitude is usually 400-500 hPa. If the air pressure value is around 1000 hPa, it is near the ground pressure, and if it is around 500, it is high air pressure.

Typically, the low air pressure is around 1010 hPa and the high pressure is usually 400-500 hPa. If the barometric pressure value is 1000

Around 100 pascals, it is the air pressure near the ground, and if it is about 500, it is high air pressure.

When the altimeter's base is set to 1013MB or, the altimeter indicates the barometric altitude, also known as the standard barometric pressure.

QNE, this altitude value indicates the altitude of the aircraft based on ISA, which is different from the QNH altitude, and the ground clearance cannot be determined. This altitude provides a fixed reference plane for all aircraft flying at high altitudes to maintain the separation between aircraft, but barometric altitude should never be used to calculate obstacle crossing intervals.

The disadvantage of using standard barometric altitude is that it is inconvenient to judge the vertical distance of the aircraft from the obstacle, because the obstacle elevation indicated on the map refers to the vertical distance between the highest point of the obstacle and the mean sea level, not the vertical distance from the QNE, so the use of QNE cannot provide the pilot with an intuitive reference to surpass the obstacle. In general, standard atmospheric pressure.

The difference with the corrected sea level pressure is in a 30 +30

hpa, the error of judging the obstacle height is between -250 and +250 m. At the same time, it is also inconvenient to judge the distance of the aircraft from the runway.

The general pressure near the ground is about 1010 hPa and 400 hPa altitude. If the pressure value is about 1000 hPa, the air pressure near the ground, if 500 is the air pressure at high altitude.

Standard atmospheric pressure, the pressure at sea level under standard atmospheric conditions, the value of which is:

The unit of pressure, denoted as ATM. At one time, the standard temperature and pressure (STP) was defined in chemistry as 0°C (and, but since 1982, IUPAC has redefined the "standard pressure" as 100 kPa).

1 standard atmospheric pressure = 760 mm Hg = 76 cm Hg = water bar. 1 standard atmosphere = 101325 n. (Usually 1 standard atmosphere = n in calculations). 100kpa=

Yes. The standard air pressure is 1013 hPa. Compared to the standard air pressure, 995 is much lower. It is equivalent to the air pressure of a typhoon.

The correspondence between air pressure and altitude.

1000 hPa average.

The altitude is 0 meters above sea level;

The average altitude of 950 hPa is about 700 meters;

850 hPa has an average altitude of about 1,500 meters;

The average altitude of 700 hPa is about 3,000 meters;

The average altitude of 500 hPa is about 5,500 meters;

The average altitude of 400 hPa is about 7000 meters;

300 hPa has an average altitude of about 9,000 meters;

The average altitude of 250 hPa is about 10,000 meters;

The average altitude of 200 hPa is about 12,000 meters;

The average altitude of 150 hPa is about 14,000 meters;

The average altitude of 100 hPa is about 16,000 meters.

500hpa at an altitude of 5500m. There are calculation formulas, but because the density of the atmosphere in the vertical direction is not uniform, it is more complicated and does not need to be mastered. The above table is a check-up, and for people who study meteorology, they are all constants.

I carried it, but I forgot it. Usually altimeters are also made on this principle.

It is possible that the local atmospheric pressure is greater than, equal to, or less than 1 standard atmospheric pressure. Different regions have different altitudes and different air pressures. Standard atmospheric pressure is the air pressure at sea level under standard atmospheric conditions.

Standard atmospheric pressure, proposed by the physicist Torricelli in 1644, is a unit of pressure, denoted as ATM.

At one time, the standard temperature and pressure (STP) was defined in chemistry as 0°C (and, but since 1982, IUPAC has redefined the "standard pressure" as 100 kPa).

1 standard atmospheric pressure = 760 mm Hg = 76 cm Hg = water bar.

A standard atmospheric pressure is defined as 1 atmosphere at sea level at a temperature of 0 and latitude at 45 degrees latitude.

Atmospheric pressureShort for atmospheric pressure. is the atmospheric pressure acting on a unit area, i.e., equal to the weight of the vertical column of air per unit area that extends upwards to the upper boundary of the atmosphere.

Whether the atmospheric pressure in a place is greater than, equal to, or less than 1 standard atmosphere is possible for low altitudes.

The magnitude of the air pressure is related to conditions such as altitude, temperature, etc. Generally, it decreases with increasing height. In the horizontal direction, the difference in atmospheric pressure causes the flow of air.

A unit of air pressure, and it is customary to use the height of the mercury column. For example, a standard atmospheric pressure is equal to the weight of a 760 millimeter-high column of mercury, which is equivalent to the atmospheric pressure of a kilogram on an area of one square centimeter. It is used in an international uniform manner"hPa"As a unit of air pressure.

After conversion: one standard atmosphere = 1013 hPa (mbar). The average annual air pressure in Shenzhen is 10 pascals.

The magnitude of air pressure is related to altitude, atmospheric temperature, atmospheric density, etc., and generally decreases exponentially with the increase of altitude.

There are diurnal and annual variations in air pressure. During the year, the air pressure is higher in winter than in summer. During the day, there is a maximum and a minimum of air pressure, which occurs at 9 10 o'clock and 15 16 o'clock, and a second highest and one sub-low value, which occurs at 21 22 o'clock and 3 4 o'clock, respectively.

The diurnal variation of air pressure is small, generally in kilopascals, and decreases with increasing latitude. The change of air pressure is closely related to the wind and the quality of the weather, so it is an important meteorological factor. The units of air pressure commonly used are Pa (Pa), millimeter mercury column height (mm·hg), and millibar (MB).

The conversion relationship between them is: 100 Pa = 1 mbar 3 4 mm mercury column height. The instruments commonly used to measure air pressure in meteorological observation include mercury barometer, empty box barometer, and barometer.

The pressure at which the vertical column of mercury is 760 mm high at a temperature of 0, and the standard atmospheric pressure was first measured by the Italian scientist Torricelli.