منابع مشابه
تعیین طول دوره بدون یخبندان با استفاده از تاریخ‌های آغاز و خاتمه یخبندان فرارفتی و تابشی در نواحی زنجان، قزوین و تهران
Dates of start and end of frost based on minimum shelter temperature equal to or less than 0°C were studied in Zanjan, Ghazvin and Tehran during 1961-2000. The cause of these frosts was determined by weather parameter values at observation hours and the aid of synoptic maps. Frost series based upon last spring or first fall advection are defined and found to be random and normally distributed. ...
متن کاملتعیین طول دوره بدون یخبندان با استفاده از تاریخ‌های آغاز و خاتمه یخبندان فرارفتی و تابشی در نواحی زنجان، قزوین و تهران
Dates of start and end of frost based on minimum shelter temperature equal to or less than 0°C were studied in Zanjan, Ghazvin and Tehran during 1961-2000. The cause of these frosts was determined by weather parameter values at observation hours and the aid of synoptic maps. Frost series based upon last spring or first fall advection are defined and found to be random and normally distributed. ...
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The deformation of the ground surface that is produced by frost heave has motivated almost a century of concerted laboratory, field and theoretical studies. Well before the development of equipment capable of resolving the microscopic films that support liquid transport towards growing ice lenses, early investigators predicted their occurrence and noted their importance. Idealized experiments c...
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A great number of organismiis can wvithstan(d temperatures below the freezing point of water. Many plants are even resistant against severe frosts especially during the winter months. In the late spring, during summer and in the early fall, however, they may be killed by moderate frosts. In order to gain resistance they must undergo a hardening process; in spring this resistance is lost by deha...
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ژورنال
عنوان ژورنال: Monthly Weather Review
سال: 1914
ISSN: 0027-0644,1520-0493
DOI: 10.1175/1520-0493(1914)42<590:fafpit>2.0.co;2