What's the reason for feeling the heat wave?
In recent years, global climate change has led to frequent heatwaves and rising temperatures. The formation of heat wave is closely related to meteorological factors and human activities, such as high pressure system, air humidity and El Nino phenomenon. In response to the heat wave, it is necessary to strengthen public education, develop green energy, optimize urban planning and establish early warning mechanisms.
Heat wave phenomena in the context of global climate change
Earth's climate changes, frequent extreme weather, heat waves.
Hot summer, heat wave swept the world, people miserable.
City streets, heat wave, people hide in air-conditioned rooms, looking for a moment of cool.
Crops hit by heat wave, production decline, food security concerns.
A series of chain reactions triggered by the heat wave have a serious impact on human life.
Heat wave phenomena in the context of global climate change
Scientists dug deeper and revealed a strong link between climate change and heat waves.
The research data suggest that extreme heat wave events are frequent and that the Earth is experiencing unprecedented temperature increases.
Climate change has a far-reaching impact on human life, and the heat wave phenomenon has become the focus of global attention.
Heat wave phenomena in the context of global climate change
The global temperature is rising, the heat wave phenomenon is more frequent, brings many troubles to the human life.
Hot weather threatens people's health, crops are reduced and ecosystems are out of balance.
The intensification of heat wave has become an important symbol of global climate change.
Meteorological causes of heat wave
The formation of the heat wave is related to a variety of meteorological factors, including the following three aspects of atmospheric pressure system changes, when the high pressure system formed and continued to strengthen, As the air sinks, surface temperatures rise; abnormal increases in ocean temperatures, especially near the equator, can rapidly raise atmospheric humidity. Further aggravate the impact of heat wave; terrain factors can not be ignored, mountains and other terrain obstacles can guide the air flow, making some areas significantly higher temperature.
Meteorological causes of heat wave
As the high pressure system rises, the air is forced to sink and the temperature rises.
The sinking air is unstoppable, and the temperature keeps rising.
With the continuous increase of air pressure, heat wave gradually formed, hot atmosphere filled.
The power of the heat wave can not be underestimated, it brings a lot of inconvenience to our lives.
Meteorological causes of heat wave
The water vapor content in the atmosphere increases, the water evaporation process accelerates, and the heat energy is absorbed.
After the ground absorbs solar radiation, the temperature rises, the hot air rises, forms the low pressure area.
The cold air in the high pressure area sinks and meets the rising hot air, forming a strong convection.
This increased convective activity, leading to a further rise in temperature, the formation of heat wave weather.
Meteorological causes of heat wave
Atmospheric circulation anomalies, such as El Niño, trigger a sharp rise in local temperatures.
This phenomenon often leads to temperatures in some areas beyond the normal range.
Under the influence of El Nino, temperatures in some areas can even reach extreme temperatures.
Section 3 effects of human activities on heat waves
The accelerated process of urbanization, the manufacture and use of a large number of building materials, the release of a large number of greenhouse gases.
Industrial production, energy consumption and emissions of greenhouse gases continue to accumulate, aggravating the Earth's greenhouse effect.
The rapid development of transportation, especially the emission of automobile exhaust, has played an important role in the rise of atmospheric temperature.
Section 3 effects of human activities on heat waves
The urbanization process accelerates, the surface hardens, causes the urban heat island effect to aggravate, causes the urban temperature to rise.
High-rise buildings, roads covered with asphalt, everything is moving towards industrialization and modernization.
This is followed by a series of environmental problems, one of which is the frequency of heat waves.
Urban water reduction, green area decline, which make the city's ability to absorb heat weakened.
When the heat wave hit, the city as if into a huge oven, people miserable.
Section 3 effects of human activities on heat waves
Intensive industrial production, emissions of a large number of greenhouse gases, heavy transport, emissions can not be underestimated, these combined effects, The concentration of greenhouse gases in the Earth's atmosphere is increasing year by year.
With the increasing concentration of greenhouse gases, the trend of global warming is becoming more and more obvious, and the extreme weather phenomenon is increasing, especially the heat wave.
The frequent occurrence of heat wave not only brings a lot of inconvenience to human life, but also has a serious impact on the ecological environment.
Strengthen urban greening and reduce surface temperature by planting trees and building artificial water bodies.
Improve ventilation systems, especially in public places and residential areas, to improve air circulation.
Implement emergency summer plans to provide residents with summer shelters and necessary cooling supplies.
Strengthen public health publicity, improve public awareness of the hazards of heat wave and prevention awareness.
International cooperation to jointly address the heat wave challenges posed by global climate change.
Section 4 measures to deal with heat wave
Take emergency cooling measures, by adjusting the work and rest time to avoid high temperature period indoor ventilation is good.
Promote the use of sunscreen products, to promote outdoor activities to wear sun visors, sun protective clothing.
Increase spraying equipment in public places, such as shopping malls and parks, to provide immediate cooling services to the public.
Strengthen community awareness and organize residents to learn how to prevent heat stroke, including dietary adjustments and symptom recognition.
Increase care for the elderly, children and people with chronic diseases and ensure that they have access to adequate cooling resources.
Enterprises and government agencies are encouraged to adjust their working hours to reduce outdoor work during high temperatures.
Section 4 measures to deal with heat wave
Developing green energy, reducing greenhouse gas emissions, mitigating climate change, innovating energy technologies and promoting clean energy, Such as solar energy, gradually replace traditional fossil fuels.
Afforestation, enhance the carbon sink function of the ecosystem, reduce carbon dioxide concentration through tree planting, and improve air quality.
Improve energy efficiency, promote energy-saving emission reduction measures, such as energy-saving buildings, efficient lighting equipment, reduce energy consumption.
Optimize urban layout, reasonable planning of green space system, improve green coverage, introduce more water, enhance natural ventilation, reduce building density.
Promote the use of green building materials, such as high-performance thermal insulation materials, to reduce the absorption of solar radiation buildings.
Consider natural lighting and ventilation in building design and construction to reduce energy consumption for air conditioning and lighting.
We will strengthen the construction of urban drainage systems to avoid surface runoff and flood disasters and reduce urban water accumulation.
Upgrade the urban public transport system, encourage the use of public transport, reduce private car use and reduce carbon emissions.
We will strengthen urban emergency plans, establish and improve heat wave warning and response mechanisms, and improve the city's ability to respond to extreme weather events.
Section 4 measures to deal with heat wave
4. Immediately activate the Heatwave Early Warning System and disseminate early warning information in a timely manner through multiple channels to ensure prompt public access to warnings.
Take emergency measures, such as adjusting working hours and strengthening ventilation and cooling in public places, to reduce the interference of heat wave on people's daily life.
Organize a team of experts to analyze all kinds of emergencies caused by heat wave and develop corresponding coping strategies.
Strengthen communication and collaboration between the community and the government to ensure rapid response to emergencies during heatwaves.