wet season and dry season

Aboriginal and Torres Strait Islander people are advised that the Questacon website may contain images of people who have passed away. [4] However, this growth appears only in the undisturbed parts of the Amazon basin, where researchers believe roots can reach deeper and gather more rainwater. CHAPTER 9: Introduction to the Biosphere. Between October and April warm, moist monsoonal northwest winds bring high humidity and a rainfall which gives the wet season its name. [40] Floods can be exacerbated by fires that occurred during the previous dry season, which cause soils which are sandy or composed of loam to become hydrophobic, or water repellent. [43], The wet season is the main period of vegetation growth within the Savanna climate regime. [5], Areas with a savanna climate in Sub-Saharan Africa, such as Ghana, Burkina Faso,[10][11] Darfur,[12] Eritrea,[13] Ethiopia,[14] and Botswana have a distinct rainy season. For the film, see. "Sirsa District Disaster Management Plan, 2015-2016". [41] In various ways governments may help people deal with wet season floods. Between the tropics and the equator, locations may experience a short wet and a long wet season; and a short dry and a long dry season. [30], In tropical areas, when the monsoon arrives, high daytime high temperatures drop and overnight low temperatures increase, thus reducing diurnal temperature variation. The incidence of malaria and dengue increases in areas where the rainy season coincides with high temperatures, particularly in tropical areas. Dry and rainy months are characteristic of tropical seasonal forests: in contrast to tropical rainforests, which do not have dry or wet seasons, since their rainfall is equally distributed throughout the year. [7] Some animals have adaptation and survival strategies for the wet season. Remote Sensing for Migratory Creatures (2002). Between May and September low humidity and rainfall brought on by dry southeast winds create the dry season. Seasons in the Top End of the Northern Territory are generally known as the wet and the dry. International Journal of Climatology, 28 (3), 329–342. Wet Season Tidal Circulation and flushing in Three Fathoms Cove. (2008): Predicting the regional onset of the rainy season in West Africa. Under the Köppen climate classification, for tropical climates, a dry season month is defined as a month when average precipitation is below 60 millimetres (2.4 in). During this time of the year, the sun is located over the northern hemisphere, so the southern hemisphere receives less … [49] Tropical species of butterflies show larger dot markings on their wings to fend off possible predators and are more active during the wet season than the dry season. This first front sometimes results in a … Examples of such animals are zebras, elephants, and wildebeest. [16] Monsoon regions include the Indian subcontinent, Southeast Asia (including Indonesia and Philippines),[17] northern sections of Australia's North,[18] Polynesia,[19] Central America,[20] western and southern Mexico,[21] the Desert Southwest of the United States,[22] southern Guyana,[23] portions of northeast Brazil. [47], Cows calve, or give birth, at the beginning of the wet season. At the equator there are two wet and two dry seasons, as the rain belt passes over twice a year, once moving north and once moving south. [48] The onset of the rainy season signals the departure of the monarch butterfly from Mexico. [39] The Ghaggar-Hakra River, which only flows during India's monsoon season, can flood and severely damage local crops. Between May and September low humidity and rainfall brought on by dry southeast winds create the dry season. Science Circus, Smart Skills [1], During the dry season, humidity is very low, causing some watering holes and rivers to dry up. https://en.wikipedia.org/w/index.php?title=Wet_season&oldid=983559178, Articles with dead external links from January 2018, Articles with permanently dead external links, Wikipedia articles needing clarification from August 2015, Creative Commons Attribution-ShareAlike License, This page was last edited on 14 October 2020, at 22:40. [35] Leaching of soils during periods of heavy rainfall depletes nutrients. Soil nutrients diminish and erosion increases. [42] Instructions on controlling erosion through outreach[clarification needed] are also provided by telephone or the internet. International Journal of Climatology, 29 (7), 937–954.. Mehari Tesfazgi Mebrhatu, M. Tsubo, and Sue Walker (2004). [6], For the 2006 Chadian film whose title translates to "Dry Season" in English, see, CS1 maint: multiple names: authors list (, Learn how and when to remove this template message, "Updated world Köppen-Geiger climate classification map", "Dry Season Brings On Measles In Sub-Saharan Africa", "Amazon rainforest does have rainy and dry seasons", "Amazon rainforest greens up in the dry season", "Ozone measurements in Amazonia: Dry season versus wet season", https://en.wikipedia.org/w/index.php?title=Dry_season&oldid=975569485, Articles needing additional references from February 2008, All articles needing additional references, Wikipedia articles needing clarification from August 2015, Creative Commons Attribution-ShareAlike License, This page was last edited on 29 August 2020, at 07:23. British Journal of Nutrition: Cambridge University Press, 1994. Generally the season lasts at least a month. [3], Under the Köppen climate classification, for tropical climates, a wet season month is defined as a month where average precipitation is 60 millimetres (2.4 in) or more. Bushfires are common in the Top End in the dry. [38] Such floods cause rivers to burst their banks and submerge homes. [5] Some areas with pronounced rainy seasons will see a break in rainfall mid-season, when the intertropical convergence zone or monsoon trough moves to higher latitudes in the middle of the warm season.[6]. Aboriginal people of this region recognise more than just two seasons. The weather in the tropics is dominated by the tropical rain belt, which moves from the northern to the southern tropics and back over the course of the year. These fires are often started by Aboriginal people, continuing a practice going back many thousands of years to manage the fuel load on the land (to try to prevent really big fires) and to drive animals so they can be caught for food. [2], Data shows that in Africa the start of the dry season coincides with a rise in the cases of measles—which researchers believe might be attributed to the higher concentration of people in the dry season, as agricultural operations are all but impossible without irrigation. Photo by G Crane. [46] Malaria incidence increases during periods of high temperature and heavy rainfall. The term 'green season' is also sometimes used as a euphemism by tourist authorities. [27] Similarly, the wet season in the Negev desert of Israel extends from October through May. For example, in Mexico it is known as "storm season". [1] The term 'green season' is also sometimes used as a euphemism by tourist authorities. October and November are the transition months and are often referred to as the 'build up' because a lot of moisture builds up in the air making it feel very hot and heavy. J. S. 0guntoyinbo and F. 0. [8] Rainfall in the wet season is mainly due to daytime heating which leads to diurnal thunderstorm activity within a pre-existing moist airmass, so the rain mainly falls in late afternoon and early evening in savannah and monsoon regions. Seasonal Variations of Physico-chemical Characteristics in Water Resources Quality in Western Niger Delta Region, Nigeria. Analysis of Wet Season Rainfall Over the Nordeste of Brazil, South America. Stratiform Precipitation in Regions of Convection: A Meteorological Paradox?

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