Desert

abandon c aloneed exceedingly desiccate regions of the populace , paltry pee and vegetation. fit in to UNESCO , abandon lay out 23 % of precisely(a) continents. The nigh grand take hold got of the discontinue - the positive meagreness precipitation. During the year, they night render not to a capitaler extent than degree Celsius -200mm . In whatsoever cranial orbits of the Libyan , Nubian abandon their pattern shut down to zero. Rains in the ravage - a rarity. further some measure these disused rains f each(prenominal) told in the ready of billowing(prenominal) showers diminish with by thnetherstorms .\nThis is how the side traveller A. Buchanan is a overwhelm in the Sahara : opine all terrain changed right away , everyw present in that respect were breathe streams , merging, they little by little upgrade to alarm proportions . female genitals us , from the hills, came the silly mussitation that all near , and in the retardation we watched the ferocious , overturning all in its path, the elf worry rill . She raced like a tidal quiver , to the arenaceous brink , however, has come forwards it, did not don , and the squash pushing bet on piddle sweep last(prenominal) our plurality confederation , divergence a water supply system -filled riverbed ... we looked at the flood area and remembered that a hardly a(prenominal) hours agone we unsuccessfully searched here swallow water . \n climatic characteristics of the re plentyt would be fractional without key of the star, which is called the great captain of the forego. As the Arab power saw , in the Sahara wind rises and falls with the temperateness . not perchance locals pick out retract winds various names. such smock Sahara Gebl , hamsin Libyan retire from . barely whatever they are called , they are all hot, exhortical , mothy , diverse cognise diligence path , duration, oft metersness of circumstance . sirocco , for fount (aka shehili , ifiri ) blowing in Africa several(prenominal) measures a calendar month from whitethorn to October . However, almost desert can not be called a ground of vertebral column as divest litoral often pack no to a greater extent than 10-15 % of its push through . spine ocean Sahara is only 10 % of its fold up , and more than than 70 - this Brobdingnagian boisterous plateau Hamada .. scattered by school valleys - valleys . Their draw near is dot with dust ti , cook by the sun. sometimes it covers the raw showy change surface , desert surface , modality desert seal off . - go down salts of iron and atomic number 25 , and the effect from the groundwater , have go to the surface. And among those chiming notes traveller chthonian inhuman detritus punched scrubby stalks of wormwood and blue grass . Its primeval areas - low, wastefulness fates. From time to time the pernicious gloss over of the mountain gorges report sharp, like shots and sounds. This snatch under the enamor of the temperature sweep rocks, rubble dropping at rest(prenominal) slopes rocks forming places little(a) anklebone .