Low latitude (<30)

Mid-latitudes (30-60

High latitude (60-90)

limitation

temperature vertical lapse rate

cold front

warm front

Warm and cold air masses meet

At the seaside, when warm and cold air meet softly, the warm air slowly rises above and the cold air falls below.

In valley areas, cold air sinks to the valley bottom and gathers, and the air at the bottom of the valley is pushed upward.

Generate conditions

low altitude flight

factory chimney height

It affects air convection, concentrates pollutants, and easily produces "haze" weather.

UV rays

Absorb infrared rays

Reflection without selectivity

Scattering of blue and violet light with shorter wavelengths

新雪

冰面

infrared

Ground insulation

二氧化碳

晴天温差大

海陆分布

judgment hemisphere

wind direction wind force

The isobaric surface is parallel to the ground

vertical movement

horizontal movement

Air pollution factory layout

Greenbelt

equatorial low pressure belt

polar high pressure zone

subtropical high pressure zone

subpolar low pressure zone

clear

rainy

clear

东亚季风

南亚季风

拓展：如考查区域在南北纬30附近，大多考查全球气压带风带的移动造成风向的转变。

desert

rainforest

Monsoon

grassland

Comparative analysis

Mediterranean

Monsoon

Annual rain pattern

Monsoon

mainland

daily variation

seasonal changes

Interannual variability

seasonal changes

Interannual variability

Controlled by a single cold air mass, sunny, cold and high pressure

continuous precipitation

Single warm air mass control, sunny, warm and low pressure

Single warm air mass, sunny and warm

Rain, snow, hail, significant cooling, strong winds, sandstorms

Single cold air mass control, sunny, low and high

Jianghuai quasi-stationary front

June rainy season

Kunming quasi-stationary front