خدمة تلخيص النصوص العربية أونلاين،قم بتلخيص نصوصك بضغطة واحدة من خلال هذه الخدمة
A snowfall consists of myriads of minute ice crystals that fall to the ground in the
form of frozen precipitation. The formation of snow begins with these ice crystals in the
subfreezing strata of the middle and upper atmosphere when there is an adequate
supply of moisture present. At the core of every ice crystal is a minuscule nucleus, a
solid particle of matter around which moisture condenses and freezes. Liquid water
droplets floating in the supercooled atmosphere and free ice crystals cannot coexist
within the same cloud, since the vapor pressure of ice is less than that of water. This
enables the ice crystals to rob the liquid droplets of their moisture and grow continuously.
The process can be very rapid, quickly creating sizable ice crystals, some of which
adhere to each other to create a cluster of ice crystals or a snowflake. Simple flakes
possess a variety of beautiful forms, usually hexagonal, though the symmetrical shapes
reproduced in most microscope photography of snowflakes are not usually found in
actual snowfalls. Typically, snowflakes in actual snowfall consists of broken fragments
and clusters of adhering ice crystals.
For a snowfall to continue once it starts, there must be a constant inflow of moisture
to supply the nuclei. This moisture is supplied by the passage of an airstream over a
water surface and its subsequent lifting to higher regions of the atmosphere. The Pacific
Ocean is the source of moisture for most snowfalls west of the Rocky Mountains, while
the Gulf of Mexico and the Atlantic Ocean feed water vapor into the air currents over
the central and eastern sections of the United States. Other geographical features also
can be the source of moisture for some snowstorms. For example, areas adjacent to the
Great Lakes experience their own unique lake-effect storms, employing a variation of
the process on a local scale. In addition, mountainous section or rising terrain can
initiate snowfalls by the geographical lifting of a moist airstream.
A snowfall consists of myriads of minute ice crystals that fall to the ground in the
form of frozen precipitation. The formation of snow begins with these ice crystals in the
subfreezing strata of the middle and upper atmosphere when there is an adequate
supply of moisture present. At the core of every ice crystal is a minuscule nucleus, a
solid particle of matter around which moisture condenses and freezes. Liquid water
droplets floating in the supercooled atmosphere and free ice crystals cannot coexist
within the same cloud, since the vapor pressure of ice is less than that of water. This
enables the ice crystals to rob the liquid droplets of their moisture and grow continuously.
The process can be very rapid, quickly creating sizable ice crystals, some of which
adhere to each other to create a cluster of ice crystals or a snowflake. Simple flakes
possess a variety of beautiful forms, usually hexagonal, though the symmetrical shapes
reproduced in most microscope photography of snowflakes are not usually found in
actual snowfalls. Typically, snowflakes in actual snowfall consists of broken fragments
and clusters of adhering ice crystals.
For a snowfall to continue once it starts, there must be a constant inflow of moisture
to supply the nuclei. This moisture is supplied by the passage of an airstream over a
water surface and its subsequent lifting to higher regions of the atmosphere. The Pacific
Ocean is the source of moisture for most snowfalls west of the Rocky Mountains, while
the Gulf of Mexico and the Atlantic Ocean feed water vapor into the air currents over
the central and eastern sections of the United States. Other geographical features also
can be the source of moisture for some snowstorms. For example, areas adjacent to the
Great Lakes experience their own unique lake-effect storms, employing a variation of
the process on a local scale. In addition, mountainous section or rising terrain can
initiate snowfalls by the geographical lifting of a moist airstream.
تلخيص النصوص العربية والإنجليزية اليا باستخدام الخوارزميات الإحصائية وترتيب وأهمية الجمل في النص
يمكنك تحميل ناتج التلخيص بأكثر من صيغة متوفرة مثل PDF أو ملفات Word أو حتي نصوص عادية
يمكنك مشاركة رابط التلخيص بسهولة حيث يحتفظ الموقع بالتلخيص لإمكانية الإطلاع عليه في أي وقت ومن أي جهاز ماعدا الملخصات الخاصة
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