What is the relationship between weather and climate

1. What is the difference between weather and climate?

The main goal is for students to learn the difference and connection between weather and climate.

1. The concept is different

Weather refers to the combination of atmospheric states (such as t, e, p, etc.) and atmospheric phenomena (such as wind, clouds, fog, precipitation, etc.) in a certain area at a certain moment or in a certain period of time.

Climate is the synthesis of a large number of weather processes over a period of time. It includes not only the weather conditions that have often occurred in the area over the years, but also the occasional extreme weather conditions in certain years.

Climate is a summary and generalization based on the observed weather for many years, and a long-term atmospheric process derived from the synthesis of a large number of weather processes in a certain period of time, and there is a statistical relationship between the two, which reflects the relationship between micro and macro in time.

2. In terms of time scale:

Weather is short-lived, and climate is long-term.

The weather is volatile, and the climate is relatively stable.

The weather is not exactly the same in different parts of the country at the same time, and the weather in the same area is often different at different times. The climate is generally relatively stable, and the climatic characteristics of a place are greatly affected by the latitude, altitude, and relative position of land and sea.

The causes are different: weather is formed by air masses and fronts, while climate is formed by the long-term interaction of solar radiation, atmospheric circulation, underlying surface properties and human activities.

3. Weather is the basis of climate, and climate is the summary and generalization of weather. (Contact).

Weather is different from the length of time of climate: weather is short-term, changing in days, hours, etc.; The climate cycle is longer, usually 30 years or more, and is the average weather that can be achieved over a period of time. Weather is the specific state of the atmosphere in a certain area that is close to the earth's surface in a short period of time; Climate refers to the multi-year average state of an area's atmosphere.

Climate is a long-term average state of the physical characteristics of the atmosphere and, unlike weather, it has a certain stability. According to the World Meteorological Organization, a standard climate calculation time is 30 years. Climate is measured in terms of cold, warm, dry, and wet characteristics, and is usually characterized by averages and dispersions over a period of time.

Precautions for hot and cold weather.

The weather is changeable, hot and cold, the temperature difference between morning and evening is large, the wind blows, bacteria, viruses and other microorganisms are active, Chongqing citizens should pay attention to keeping warm to prevent colds when they go out, especially children, pregnant women, the elderly and people with weak bodies and other people with poor resistance should pay more attention. In addition, you should avoid excessive fatigue and too long when you go green, try not to stay out overnight, and it is best to bring some medicines to prevent and treat colds.

Prevent diarrhea while playing. Food is prone to spoilage, so it's best to carry food with airtight packaging, especially meat, when you go out. Unpacked food should be eaten as soon as possible. It is best to wash your hands before eating before eating outside for a picnic.

The difference between weather and climate is that the weather is short and changeable; The climate is long and generally does not change much.

Weather: Suddenly, like a night of spring breeze, thousands of trees and pear blossoms. The sound of wind and rain comes at night, and the flowers fall to know how much. In the next 24 hours, there will be northerly winds of 6 to 7 degrees and temperatures drop by 6 to 8 degrees Celsius in the region. Sunny.

Climate: withered vines and old trees, small bridges and flowing water, ancient roads and westerly winds. Kunming is like spring all year round. The Sahara Desert in Africa is hot, dry and rainless all year round. Long summer without winter.

The main factors influencing the formation of climate are solar radiation, atmospheric circulation, ground conditions, ocean currents and human activities.

1. Solar radiation is the fundamental energy source for atmospheric movement. The climatic differences in different regions and the seasonal variations in the same region are mainly due to the uneven distribution of solar radiation on the Earth's surface and its variation over time.

The distribution of surface solar radiation decreases from low latitude to high latitude. The climate change in the same region with cold winters and hot summers is also mainly due to the fact that it receives less solar radiation in winter and more solar radiation in summer.

2. Atmospheric circulation: Atmospheric circulation has a dual role in the formation of climate, on the one hand, it adjusts the distribution of global heat and water vapor and affects the climate of various places; On the other hand, it is also a climatic phenomenon in its own right.

The three-circle circulation continuously transports heat from the lower latitudes to the higher latitudes, regulating and balancing the heat difference between the lower and higher latitudes. Pressure and wind bands have a great influence on precipitation. For example, the Mediterranean climate on the west coast of the continent is controlled alternately by the subtropical high pressure belt and the westerly wind belt, forming the climate characteristics of winter rain and summer dryness.

Monsoon circulation is a kind of atmospheric circulation formed by the thermal difference between land and sea on the east coast of the continent, and the monsoon circulation itself is a kind of climate - monsoon climate. Due to the difference in the thermal properties of land and sea, low pressure forms on the land in summer, and the wind blows from the ocean to the land, bringing abundant precipitation. In winter, high pressure forms on land, and winds blow from the land to the ocean, resulting in a relatively dry land breeze with less precipitation.

3. Ground conditions: The ground is the direct heat source and water source of the atmosphere, and the ground conditions are different, which directly affects the water and heat conditions in the atmosphere.

The specific heat capacity mainly affects the magnitude of temperature change, the formation of sea and land breeze and monsoon. The location of land and sea mainly affects the amount of precipitation and the size of the temperature difference. Topographic factors affect the distribution of water and heat. Ground reflectivity affects how much solar radiation energy the ground gets.

The Earth's atmosphere is constantly moving and changing, so the weather phenomena we see are always changing. Sometimes the sky is clear and the wind is beautiful, and sometimes the clouds are dense and the wind and rain are fierce, which has the characteristics of rapid change. Weather refers to the comprehensive state of meteorological factors such as temperature, air pressure, and temperature in a short period of time, and the atmospheric phenomena such as wind, clouds, and rain caused by it.

Climate refers to the combination of weather conditions that occur occasionally in a region for many years and in special years. Climate and weather are closely related: weather is the basis of climate, and climate is a generalization of weather.

The climatic characteristics of a place are reflected by the multi-year average of various meteorological factors (temperature, humidity, precipitation, wind, etc.) in the region and the extreme values of special years. For example, the climate of Beijing: the average temperature in January is the average temperature in July, the minimum temperature is recorded on January 13, and the maximum temperature is recorded on June 15); The average annual precipitation is mm, and the precipitation in summer (June to August) accounts for 74% of the annual precipitation.

In a nutshell, Beijing's climate is characterized by cold and dry winters and hot and rainy summers.

1. What is the difference between weather and climate?