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Aridity index information


An aridity index (AI) is a numerical indicator of the degree of dryness of the climate at a given location. The American Meteorological Society defined it in meteorology and climatology, as "the degree to which a climate lacks effective, life-promoting moisture". Aridity is different from drought because aridity is permanent whereas drought is temporary.[1] A number of aridity indices have been proposed (see below); these indicators serve to identify, locate or delimit regions that suffer from a deficit of available water, a condition that can severely affect the effective use of the land for such activities as agriculture or stock-farming.

  1. ^ "Did You Know? | National Centers for Environmental Information (NCEI)". www.ncei.noaa.gov. Retrieved 2023-05-18.

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Aridity index

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life-promoting moisture". Aridity is different from drought because aridity is permanent whereas drought is temporary. A number of aridity indices have been proposed...

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Aridity

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thereby increase aridity. Look up aridity in Wiktionary, the free dictionary. Wikivoyage has a travel guide for Arid region safety. Arid Forest Research...

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Drylands

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with an aridity index of less than 0.65. One can classify drylands into four sub-types: Dry sub-humid lands Semi-arid lands Arid lands Hyper-arid lands...

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Thornthwaite climate classification

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humidity and aridity indexes, respectively. The Seasonal Variation of Effective Moisture is described by two indexes: The Aridity Index (Ia), used in...

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Fresh water

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super arid areas with more than 0.67 aridity index, there was constant recharge with little variation with precipitation; in most sites (arid, semi-arid, humid)...

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Climate classification

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Tundra climate Polar climate Climate classification systems include: Aridity index – part of many systems Alisov climate classification (ru) Berg climate...

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Common nightingale

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25 °C (77 °F) annual precipitation less than 750 millimetres (30 in) aridity index lower than 0.35 no closed canopy In the U.K., the bird is at the northern...

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Flash drought

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"Agrometeorological screening of major world climatic types with the FAO aridity index". Agricultural and Forest Meteorology. 265: 171–183. doi:10.1016/j.agrformet...

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Desertification

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degradation of fertile land into arid desert due to a combination of natural processes and human activities. This spread of arid areas is caused by a variety...

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Aridification

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America are currently undergoing aridification. Arid Aridity index Central Arid Zone Research Institute Arid Forest Research Institute Desert Desertification...

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Potential evapotranspiration

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precipitation, the symbol for which is P. The ratio of the two, P/PET, is the aridity index. A humid subtropical climate is a zone of climate with hot and humid...

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Drought

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Province China resulting in 5 million and 2.5 million deaths respectively. Aridity index Drought refuge Flash drought Food security Leaf Sensor List of droughts...

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Holdridge life zones

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greater than PET. The ratio, Precipitation/PET, is the aridity index (AI), with an AI<0.2 indicating arid/hyperarid, and AI<0.5 indicating dry. The coldest...

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Geography of Kerala

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anthropogenic pressures. A study on the incidence of droughts based on the aridity index shows that during the period 1871– 2000, the State of Kerala experienced...

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Climate of France

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Indices derived from these measurements can be created, such as the aridity index and evapotranspiration. These objective measurements are supplemented...

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Gilf Kebir

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rainfall amount hardly reaches 0.1 mm) but also because the geological aridity index/dryness ratio is over 200, which means that the solar energy received...

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Vojvodina

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Basarin, Biljana; Marković, Slobodan B. (20 August 2019). "Forestry Aridity Index in Vojvodina, North Serbia". Open Geosciences. 11 (1): 367–377. Bibcode:2019OGeo...

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Pleistocene Park

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Siberia is in fact similar to that of the mammoth steppe. The radiation aridity index for northern Siberia on Mikhail Budyko's scale is 2 (= steppe bordering...

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Gaussen Index

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The Gaussen Index (or Bagnouls-Gaussen Index) or xerothermic index is a method of calculating and comparing aridity. According to Henri Gaussen (French...

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Qaidam Basin

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the sea. The area is among the most arid non-polar locations on Earth, with some places reporting an aridity index of 0.008–0.04. Across the entire basin...

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Journal of Arid Environments

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The Journal of Arid Environments is a monthly peer-reviewed scientific journal published by Elsevier. The journal was established in 1978 and was first...

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Emmanuel de Martonne

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Martonne aridity index". In his work Problème des régions arides Sud-Américaines De Martonne was the first to coin and the define the South American Arid Diagonal...

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Phalee

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Moist Broadleaf Forests biome. It has mean soil pH of 5.49 and 1.49 aridity index. The current organic carbon content in the soil (within the top 2 M)...

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Hammerschmiede clay pit

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7-27.9 °C, warm month precipitation of 79–172 mm and an average Köppen Aridity Index of 25.4. All this suggests a seasonally dry climate, with swamps developing...

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BGI

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program based in Washington State Bagnoles-Gaussen Index, or Gaussen Index, a climatological measure of aridity Barclays Global Investors, an asset management...

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Sonoran Desert

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dry summers and cold winters). This creates an extreme contrast between aridity and moisture. The Sonoran desert wraps around the northern end of the Gulf...

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List of fictional diseases

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rabbits causing blindness and death. Wildcard coccus A Certain Magical Index by Kazuma Kamachi It is a highly virulent killer bacterium. Its method of...

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Israel

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It is ranked 14th in the Global Innovation Index in 2023, and fifth in the 2019 Bloomberg Innovation Index. Israel has 140 scientists, technicians, and...

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South Africa

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labourers and contributing around 2.6% of GDP for the nation. Due to the aridity of the land, only 13.5% can be used for crop production, and only 3% is...

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