What is the relationship between the geographical location of the city and the weather?

It decreases from low latitude to high latitude, so the isotherm is generally parallel to latitude. The temperature of the sea and land at the same latitude is different. In summer, the isotherm protrudes in the direction of high latitude on land and in the direction of low latitude on the ocean. The farther north the cities in the northern hemisphere are, the lower the temperature is, and the farther south the cities in the southern hemisphere are, the lower the temperature is.

Climatologists in China have done a lot of research on the division of climate zones in China. From 65438 to 0959, the Working Committee of Natural Division of China Academy of Sciences divided the eastern part of China into six climatic zones: equatorial zone, tropical zone, subtropical zone, warm temperate zone, temperate zone and cold temperate zone.

People's Republic of China (PRC) Climate Atlas (1979) divides the eastern part of China into nine climatic zones, namely, tropical zone, subtropical zone and temperate zone.

Extended data:

First, the latitude line

Draw a great circle perpendicular to the earth axis in the middle of the earth, so that every point on the circle is equal to the distance between the north and south poles. This circle is called the equator. On the north and south sides of the equator, many circles parallel to the equator are drawn, which is the "weft circle"; The line segments that make up these circles are called parallels.

It is defined as the angle between the line from a point on the earth's surface to the center of the sphere and the equatorial plane. We set the equator as zero latitude, 90 degrees south latitude to north, south latitude to south, and north latitude to north.

The North Pole is 90 degrees north latitude and the South Pole is 90 degrees south latitude. Latitude also marks the hot and cold climate, for example, there is no winter in equatorial and low latitudes, no summer in polar and high latitudes, and four distinct seasons in middle latitudes.

Second, the natural factors of temperature

The temperature in a certain place changes periodically not only because of the change of solar radiation, but also because of the movement of the atmosphere rather than periodically. The change of actual temperature is the result of the interaction between these two aspects. If the former plays a big role, the temperature changes periodically; On the contrary, it shows an aperiodic change.

However, from the general trend and most cases, the periodicity of daily and annual temperature changes is still the main one. Various components in the heat balance, such as radiation difference, latent heat and sensible heat exchange, are affected by different control factors. Astronomical factors such as latitude and season have obvious zonal and periodic characteristics.

However, the nature, topography and weather conditions of the underlying surface, such as cloud cover and atmospheric humidity, all have non-zonal characteristics. At the same time, the influence of these factors is different in different places, so the temperature distribution caused by the change of heat budget is also uneven.

Baidu encyclopedia-temperature

Source: Baidu Encyclopedia-Weft

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