What does warm winter mean?

Interpretation of warm winter: the average temperature in the whole winter is higher than normal.

Meteorological terminology

Definition:

According to this definition, the average winter temperature in China in 1987-2004 is higher than the average climate in1-1990, that is, -4.7℃, so it can be said that the warm winter phenomenon occurred in 18. However, if the new 65438, 1995/ 1996 and 1999/2000 are adopted, the national average temperatures are -4.3℃ and -4.4℃ respectively, which are lower than the new climate average and cannot be considered as warm winters. So it is more scientific to say that 2004 is the fourth consecutive warm winter.

The standard of warm winter:

According to the regulations of the International Meteorological Organization, in 2002, China began to use the average temperature in the winter from 197 1 to 2000 (i.e. 12 to February of the following year) as the perennial value (climate average). The phenomenon of cold and warm in winter can be divided into three categories: warm winter, cold winter and normal winter. The specific classification is: when the average temperature in a certain area is 0.5℃ higher than normal, it is called warm winter, and when it is 0.5℃ lower than normal, it is called cold winter. The rest is normal winter. From 20 12, 1, 1, in our daily climate business.

Abolish the previous climate average 197 1-2000, and start to use a new round of average 198 1-20 10 as the perennial value or climate value.

Scientific definition:

The concept of warm winter has a strict scientific definition. Whether it is a warm winter depends on whether the national average temperature in the whole winter is higher than the normal value. Therefore, a high temperature (relatively warm) at a certain time in winter is said to be warm winter, and a low temperature (relatively cold) at another time is said to be cold winter, so there is a joke that winter is both warm and cold.

The past year of 2006 was really warm winter weather in China. The temperature is generally high and there is less snowfall.