In meteorology, high temperature days that last for more than several days are called continuous high temperature.

Meteorologically, high temperature days lasting more than five days are called continuous high temperature.

First, the reason for the continuous high temperature:

1. Global warming provides a climate background: the global average surface temperature has been rising. In the past few decades, the temperature in every decade has been warmer than that in the previous decade.

2. Weather system trigger: The formation of high temperature is often directly caused by a specific weather system. The most typical and common one is the subtropical high, which is known as the "high temperature messenger".

3. Urban heat island effect: Urban heat island effect refers to the phenomenon that the temperature in the city center is higher than that in the suburbs. The strongest global heat island effect is in large and medium-sized cities at middle and high latitudes.

Second, the environmental problems caused by:

1, high temperature weather will obviously reduce the humidity and moisture of soil, which is called soil moisture in agriculture and becomes worse.

2, it will affect the water supply. Now it is obvious that in many cities in the north, the urban water supply has been in short supply. If high temperature and heat waves persist, the contradiction between supply and demand will intensify, and strict water-saving measures will be taken when necessary.

3. There will be more forest fires in forest areas such as Northeast China. If lightning strikes the fire again at high temperature, the trees will be very dry and the air humidity will be very low, which will easily lead to forest fires.

4, leading to pollution problems.

Continuous high temperature and its harm to health and its countermeasures;

I. Countermeasures:

1, reducing greenhouse gas emissions. The increase of greenhouse gases emitted by human activities has caused obvious greenhouse effect and is an important reason for the global temperature rise.

2. Scientific planning and layout of urban construction.

3, timely carry out artificial rainfall. Relevant departments should carry out artificial rainfall operations in a timely manner according to weather conditions to alleviate high temperature and heat waves.

4. Strengthen personal protection.

Second, the harm to the body:

1, water and electrolyte disorder: working at high temperature for a long time and sweating a lot will lead to the loss of a lot of water and electrolytes (such as sodium and potassium), so there will be water and electrolyte disorders such as dehydration, hyponatremia and hypokalemia.

2, heatstroke: long-term high-temperature work leads to increased heat production, heat dissipation obstacles, easy to lead to heatstroke.

3, cardiovascular system diseases: long-term high-temperature work, the body's metabolism increases, which will lead to an increase in heart rate and myocardial oxygen consumption. At the same time, dehydration caused by high temperature will increase blood viscosity, so the risk of angina pectoris and myocardial infarction will also increase.