‘Low pressure atmospheric systems have more of a short term impact than high pressure systems.’ Discuss.
‘Low pressure atmospheric systems have more of a short term impact than high pressure systems.’ Discuss. Low pressure atmospheric systems are also known as depressions or cyclones and they form in mid- and high-latitudes. They are formed by the mixing of cold and warm air, the warm air is lighter, so it rises above the denser, cold air and forms a centre of low pressure. High pressure atmospheric systems are also known as anticyclones and have very different characteristics to depressions. Anticyclones are large masses of subsiding air, which produces high pressure at the surface. There are a variety of difference between anticyclones and depressions, including the weather conditions, the length of time they last and the impact they have upon diverse countries and areas.
Low pressure atmospheric systems can cause hazards because of severe weather such as blizzards and heavy snowfall, as well as high winds and heavy rainfall. This can have harsh impacts among individuals, being a lead cause of hypothermia, and frostbite, especially those vulnerable, such as the elderly. Also, these depressions can cause crops to be destroyed, and a high mortality rate throughout the spring lambing season. Extreme cold spells can have a massive negative effect on a global scale, but also in a specific country or region.
High pressure atmospheric systems affect the globe, especially the southern hemisphere, as it is nearly always continuous, although in places such as Australia and South Africa, this is broken throughout their summer. With anticyclones, there are few winds, so maps usually have circular spaced out isobars. Also, these atmospheric systems block depressions, which mean that their impacts are usually long-term, because they are constant. Weather associated with anticyclones differentiates depending on the time of year. In summer, anticyclones produce long periods of dry, hot, sunny weather, which can then cause heat waves and drought. However, in winter the
Low pressure atmospheric systems can cause hazards because of severe weather such as blizzards and heavy snowfall, as well as high winds and heavy rainfall. This can have harsh impacts among individuals, being a lead cause of hypothermia, and frostbite, especially those vulnerable, such as the elderly. Also, these depressions can cause crops to be destroyed, and a high mortality rate throughout the spring lambing season. Extreme cold spells can have a massive negative effect on a global scale, but also in a specific country or region.
High pressure atmospheric systems affect the globe, especially the southern hemisphere, as it is nearly always continuous, although in places such as Australia and South Africa, this is broken throughout their summer. With anticyclones, there are few winds, so maps usually have circular spaced out isobars. Also, these atmospheric systems block depressions, which mean that their impacts are usually long-term, because they are constant. Weather associated with anticyclones differentiates depending on the time of year. In summer, anticyclones produce long periods of dry, hot, sunny weather, which can then cause heat waves and drought. However, in winter the