Secondary special education of the republic of uzbekistan fergana state university


Download 389.2 Kb.
Pdf ko'rish
bet1/3
Sana25.04.2023
Hajmi389.2 Kb.
#1398446
  1   2   3
Bog'liq
SARDORBEK FOZILJONOV 6



MINISTRY OF HIGHER AND 
SECONDARY SPECIAL EDUCATION OF 
THE REPUBLIC OF UZBEKISTAN 
FERGANA STATE UNIVERSITY 
 
 
 
Direсtion: 
JISMONIY MADANIYaT 
 
Stage 1 22.24-Group A student 
 
 
FOZILJONOV SARDORBEK
 
INDIVIDUAL 
WORK 
Theme:
 
POSITION AND CLIMATE OF UZBEKISTAN 
 
 
 
 
 


POSITION AND CLIMATE OF UZBEKISTAN 
 
Plan: 
 
1. Climate of Uzbekistan 
2. Water resources of Uzbekistan 
3. Temperature distribution 
4. Seasons in Uzbekistan 
Uzbekistan is a continental climate due to its remoteness from the oceans and seas 
and the interior of the Eurasian continent. In Uzbekistan, there are large differences 
between the annual changes in all elements of the climate, which depend primarily 
on the characteristics of climate-forming factors. 
The climate of Uzbekistan is formed as a result of its geographical location and, in 
connection with it, solar radiation, atmospheric circulation, relief, the condition of 
the earth's surface, the impact of human activities on the climate (anthropogenic). 
One of the most important factors in shaping the climate of Uzbekistan is its 
geographical location and associated solar radiation. Solar radiation is the energy 
base of all natural processes. Solar radiation, in turn, depends on the latitude of the 
place, the openness of the air and the period of the Sun's radiance. 
It is known that Uzbekistan is located in the desert zone, mainly in subtropical 
latitudes, inside the oceans. This plays an important role in the formation of some 
features of its climate, such as the fact that the Sun is above the horizon, 
illuminating and heating for a long time, and less cloudy. Due to the fact that 
Uzbekistan is located in the far southern latitudes (about 37 ° and 45 ° -36 northern 
latitudes), it is summer. The sun shines more steeply (71-72 ° in the north and 760 
° in the south in June) and shines for a long time. In winter, the sun has an angle of 


21 ° in the north and 29 ° in the south of Uzbekistan. Due to the fact that the 
territory of our republic stretches from north to south by 8 ° 25, the period of solar 
radiation and, in connection with it, the amount of total solar radiation also 
changes. Therefore, in Tashkent, the Sun shines an average of 2,889 hours a year, 
while in the southernmost Termez, the figure is 3,095 hours. The weather in 
Uzbekistan is clear all year round, especially in summer. Cloudy days are rare. Due 
to this, in May-October, which is the period of ripening of agricultural crops in the 
country, the sun shines in Tashkent 1749 hours, in Termez - 2012 hours. However, 
this figure reaches Cairo (located at about 30 ° N) (see Table 1), because Cairo is 
close to the Mediterranean Sea, so there are more cloudy days than in Tashkent and 
Termez. Therefore, it is no coincidence that Uzbekistan is a sunny country. In 
Uzbekistan, the period of sunshine in summer (June-August) is 84-95% of the 
period of radiance, and in winter (December-February) is 40-50%. 
In the mountainous part of Uzbekistan, the period of solar radiation is 600-700 
hours less than in the plains: at an altitude of 2,000 m in the mountains, the Sun 
shines an average of 2,300-2,500 hours a year. The main reason for this is the 
increase of cloudy days along the mountain slope, the position of the mountain 
slope relative to the sun (exposure). 
Due to the fact that the sun is higher than the horizon in Uzbekistan, there are 
many cloudless days (90 days a year in Tashkent and 57 days in Termez), the sun 
shines for a long time, so a lot of light energy (heat) ) falls. In the northern part of 
the country, 136-140 kilocalories of heat per cm2 per year, ie in the southern part, 
160 kilocalories of heat. The amount of total solar radiation is not evenly 
distributed throughout the year. The highest solar radiation is in the summer 
months (5 times more than in the winter months). Even in the south of Uzbekistan 
in July the radiation balance reaches 20 kcal / cm2. This is because in summer the 
sun rises above the horizon and shines and warms for a long time. On the contrary, 
in winter the sunlight falls flat, the cloudy days shed less light than they used to, 
and the albedo becomes larger due to the snow cover. As a result, in winter, 


especially in January, the total amount of radiation is positive in the central and 
southern parts of Uzbekistan, amounting to 0.1-1.0 kcal per cm2. However, in the 
north-western part of the republic (Ustyurt) in some years in winter the balance of 
radiation can be negative. 
Atmospheric circulation (change of air masses) also plays an important role in the 
formation of the climate of Uzbekistan. The territory of the republic is affected by 
the following three main air masses throughout the year. Arctic, temperate and 
tropical. 
In order to get a good idea of the changing characteristics of the atmospheric 
circulation in the territory of Uzbekistan, we describe the hot (summer) and cold 
(winter) seasons of the year. In winter, the territory of Uzbekistan is more arctic 
and temperate (qu tbiy) under the influence of air masses, which enter from the 
northwest, north and northeast. 
It is known that Turkestan, including Uzbekistan, is located south of the high-
pressure barometric axis formed by the Siberian anticyclone in winter. As a result, 
air mass entered the territory of Uzbekistan from the same high-pressure 
barometric axis, ie from the north-east. Due to the anti-cyclone nature of this air 
mass, when it enters Uzbekistan, the air is clear, but at night it is dry and cold, and 
during the day it is slightly warm under the influence of sunlight, and there is 
almost no precipitation. This weather can last for three days, sometimes up to five 
days. Such weather is 28% of winter days. As a result, weak air masses from other 
regions of Uzbekistan also changed their properties under the influence of the same 
Siberian anticyclone (temperate Siberian-polar) air mass, and Turan (local 
continental) air forms a mass. 
In winter, warm tropical air masses sometimes enter the territory of Uzbekistan 
from Iran-Afghanistan. As a result, in the southern part of Turkestan there is a 
polar front, which separates the temperate zone from the cold tropical air from Iran 
and Afghanistan. The weather around the front line is unstable, the movement of 
cyclones intensifies, and the south of the Caspian Sea and through the Tajang and 


Murgab valleys between Kopetdag and Parapamiz Mountains enters Turkestan and 
moves to the north-east. As a result, it will be weakened on the territory of 
Kazakhstan. 
Due to the fact that the Oiklons bring with them a mass of warm tropical air, the air 
in the areas covered by them hangs (the temperature rises to 15-20), the clouds 
increase and it rains. Such weather is 25% of winter days. forms. 
Mild and Arctic cold air masses blow through the south-eastern part of the Russian 
Plain to the territory of Uzbekistan from the north-west and north. These air 
masses make up 24% of winter wool. The air mass invading from the north-west 
will significantly cool the territory of Uzbekistan and reduce the daily temperature 
by -10-20 °. In addition, sometimes in winter, the Arctic cold air mass infiltrates 
and stagnates, and in January the temperature can drop to -35 °. Such colds were 
observed in December 1930, December 1948, January 1949, and January 1969. 
Similar cold days in the winter of 1948/49 occurred in southern Uzbekistan and 
even in Iran, where many fruit trees were frozen and dried up. 
As mentioned above, as a result of the eastward movement of the oceans, the sea 
air mass of the temperate zone enters the territory of Uzbekistan from the west. As 
this air mass passes through the Mediterranean and Black Seas, it becomes humid, 
causing rain and sometimes snow. Such weather is 11% of the winter days. 
In hot weather, air circulation in Uzbekistan differs sharply from winter. Since 
May, due to the rapid warming of the air of the Turan plain, a low-pressure center - 
thermal depression - has been formed. As a result, the air becomes very hot and the 
local continental Turan tropical air is formed. During this period, the temperature 
in Uzbekistan rose and reached 50 ° in Termez. Such weather (days of thermal 
depression) makes up 15% of the summer period. 
In summer, in the north of the Turan plain, there is a moderate (polar) front line, 
one network is in Kazakhstan, and the other network is located in the north of the 
Black Sea and the middle reaches of the Volga River, where air pressure is high. 


As a result of thermal depression, the same high-pressure air mass is drawn in like 
a suction pump, and a mass of cool air blows from the north, northwest and west to 
the Turanian plane. According to the data, in summer the northern and north-
western (38% of summer days) and western (29% of summer days) cool air masses 
are repeated in the Turan plain 1.5-2.0 times more than in winter. . However, due 
to overheating of the Turan plain, it does not change its climate, only lowers the 
temperature by 3-10 °, so the air is still clear, dry, low relative humidity, and 
condensation is difficult. Due to this, in the Turan plain, the northern, northwestern 
and western air masses are abundant in summer, but there is no precipitation. 
These air masses cool in the mountains of Uzbekistan (due to the cooling of the air 
as they rise) and form clouds.precipitation, sometimes in the form of snow. 
Air currents blowing in Uzbekistan in summer. 
The composition of the climate of Uzbekistan is also influenced by its surface 
structure - relief. The eastern and southern parts of Uzbekistan are surrounded by 
mountains, and the western and northern parts are open. Therefore, cold air masses 
from the north, northwest and west can easily enter its territory. The presence of 
mountains such as Paropamiz in the southern part of our country prevents the 
inflow of warm tropical air masses. The effect of relief on the climate of the 
republic can also be seen in the distribution of precipitation. It is known that the 
humid western and northwestern air masses blow more in summer than in winter, 
but the plains do not produce precipitation due to the extreme heat in summer, and 
in the mountainous part due to low temperatures condensation. rain or snow. In 
addition, the western and south-western slopes of the mountains of the same height 
receive more precipitation, while the humid air masses receive less precipitation on 
the opposite slopes. The impact of relief on the climate can be seen in the example 
of the Surkhan-Sherabad valley. Due to the fact that the valley is surrounded by 
mountains from the east, north and west, it blocks the flow of cold air, as a result 
of which the winter is warmer than in other parts of Uzbekistan. and 3.6 °. Relief 
affects not only the distribution of temperature and precipitation in the country, but 


also the formation of winds, especially local winds - Fyon, Garmsel, Afghan wind, 
Bekabad wind. 
The climate of Uzbekistan is also affected by its surface condition, ie snow cover, 
soils and vegetation. Because the ability of the snow cover to reflect solar radiation 
(alhbedo) is very large (80-90% of the radiation falling on the snow surface is 
returned). This causes the air on the surface to become much colder. As a result, 
the air cools down further, causing severe winters. However, in Uzbekistan, the 
snow cover is unstable and may not melt for 30 days in the north and 1-3 days in 
the south. In the mountainous part, the snow cover is stable, and in the highest 
parts it is preserved in summer. This, in turn, partially affects the cooling of the air. 
The plains of Uzbekistan are mostly covered with sand, there is brown and gray 
soil, vegetation is sparse. This absorbs most of the sun's radiation and reflects back 
a small portion, causing the air to heat up. 
Anthropogenic factors also influence the formation of the climate of Uzbekistan. 
This is due to population growth and urbanization, increase in urban and industrial 
enterprises and cars, pollution of the air due to the release of dust, harmful gases, 
dry matter, smoke and solid particles due to various constructions, accelerating the 
process of condensation. . As a result, foggy days are increasing over the 
industrialized cities of the republic, the amount of precipitation is increasing: in 
Samarkand it is foggy for 14 days a year and 328 mm of precipitation, in the 
surrounding villages it is foggy for 31 days for 317 mm. `adi. In addition, in 
densely populated, industrialized cities, the air is polluted and the average annual 
temperature is 0.5-1.5 ° higher. Due to air pollution in 28 cities and settlements of 
Uzbekistan, various harmful compounds are much higher than the sanitary level. 
Among them are Andijan, Almalyk, Angren, Bekabad, Fergana, Chirchik, Navoi, 
Tashkent, Samarkand. 
In Uzbekistan, more than 40,000 km2 have been irrigated and turned into oases. As 
a result, the microclimate changed, the air temperature in summer decreased by 
1.5-3.5 ° C compared to the surrounding non-irrigated lands, the relative humidity 


increased by 10-15%, and the climate of the oasis was formed. Such places include 
Karshi and Mirzachul, Fergana, Chirchik-Ahangaron, Zarafshan, Surkhan-
Sherabad and Lower Amudarya oases. 
Due to the decrease in the water level of the Aral Sea, the average January 
temperature decreases in the surrounding areas, July increases and the spring frosts 
are extended to 12 days, while the autumn frosts begin 12 days earlier. 
Temperature distribution. Temperature distribution in Uzbekistan depends on 
factors such as radiation, horizontal air exchange (advetic) and surface structure. It 
is known that the sun plays an important role in the distribution of summer 
temperatures, and the heat from it does not change from year to year, so the 
summer temperature in our country is stable and not as variable as in winter. 
Therefore, the temperature difference in Uzbekistan in summer (July-August) is 
around 3 °. However, in winter, the difference between December and February 
can exceed 8 ° due to the influx of cold air from the north and hot tropical air from 
the south. 
To get an idea of the distribution of heat in the territory of Uzbekistan, it is first 
necessary to know the location of the average annual temperature. In the plains of 
Uzbekistan, the average annual temperature rises from northwest to southeast. If 
the average annual temperature in Karakalpakstan (Churuk - 8.6 °, Nukus - 11.0 °, 
Turtkul - 12.4 °) is around 8.6-12.4 °, Bukhara-Karako l voh (in Shafirkan — 14.2 
°, in Karakol — 14.8 °) 14.2—14.8 °, in the Surkhandarya valley of our republic 
(Denau — 15.9 °, Termez — 17.8 °, Sherabad — 18.0 °) is 15.9-18 °. This means 
that the coldest place in Uzbekistan is on the Ustyurt Plateau, and the hottest place 
is in the Surkhan-Sherabad oasis. This phenomenon is disrupted in the 
mountainous part of our republic. Because as it rises, the temperature decreases. 
Therefore, the average annual temperature at the height of 2300 m of the 
Ahangaron plateau is 4.0 °, at the height of 3200 m of the Turkestan ridge - 0.1 °, 
and at the height of 3700 m of the Western Tianshan mountains - 6.5 °. dir. 


The winter weather in Uzbekistan is changeable, with the coldest temperature in 
January. The average temperature in January also fluctuates from northwest to 
south in the plains of the republic: in Churuk - 11.1 °, in Nukus - 6.9 °, in Urgench 
- 5.1 °, in Shafirkan - 1 , 5 °, in Karakol — 0.4 °, in Karshi —0.2 °, in Sherabad —
3.6 °. These data show that the average January temperature is below zero in the 
plains of Uzbekistan, except for Surkhan-Sherabad, the valley and the rest of the 
Kashkadarya region, such as Kitab, Guzar, as well as in the mountains. 
In winter, sometimes due to the inflow of cold air from the Arctic and Siberia, the 
temperature in the territory of Uzbekistan drops sharply, reaching the lowest 
temperature in the north-east (Churuk - 37 °, Nukus - 32 °, Tomdi - 31) - 29 ° -37 ° 
falls. At the same time, the lowest temperature in the Surkhandarya-Sherabad 
valley, which is the warmest region of Uzbekistan (-20 ° in Sherabad, -21 ° in 
Termez, -23 ° in Denau, -25 ° in Kumkurgan) dropped to -20-25 °. , causes damage 
to subtropical plants. 
In some years, the winter in Uzbekistan is warm, and the plants do not stop 
growing. This winter is called "vegetative winter" and is more common in the 
south of Uzbekistan (80-100% of the total winter), while in the north, "vegetative 
winter" is 0-5% of the total winter. just 
Summers in Uzbekistan are open, dry, hot and influenced by the local tropical air 
mass. In addition, sunlight: falls steeply and shines for a long time, as a result of 
which in July the earth's surface becomes very hot, and the sands in the deserts can 
heat up to 80 °. At this time, the plains and foothills of Uzbekistan are warm, and 
the average July temperature rises to 27.3 ° -32 °. The hottest places in the country 
in summer are in the central part of the Kyzylkum (average July temperature in 
Tomdi is 30 °) and the Surkhan-Sherabad valley (in Termez - 31.4, in Sherabad - 
32.1 °), with an isotherm of July 30-32 °. passes. The cooler summer in the country 
is in the Lower Amudarya and Ustyurt Plateau, where the average July temperature 
(Churuk - 27.3 °, Nukus - 27.1 °, Urgench - 27.3 °) is 27.1-27. However, due to a 
decrease of 0.6 ° per 100 m ascending to the mountains, the average July 


temperature was 16.2 at an altitude of 2,300 m on the Ahangaron plateau and 10.3 
at 3,200 m on the Turkestan ridge. , At an altitude of 3700 m in western Tianshan 
falls to 4.2 °. 
In some years, the summer is extremely hot, with the highest temperature in the 
plains of Uzbekistan in July in the northwest (+ 43 ° in Churuk, + 44 ° in Nukus) to 
43-44 °, in the central part (45 in Shafirkan and Karakol). °) reaches 45 ° and 48 ° 
in the southeast. The hottest place in Uzbekistan was observed in Termez, where 
on June 21, 1914 the maximum temperature reached 49.6 °. 
Humidity and cloudiness. Humidity and cloudiness of the air in Uzbekistan depend 
primarily on the nature and variability of air masses, air temperature, surface 
condition and the rate of evaporation of precipitation. Due to the high temperature 
in the plains of Uzbekistan, especially in the hot part of the year, the possible 
evaporation is 15-20 times higher than the amount of oil. The annual amount of 
possible evaporation in our country ranges from 900 mm (around the Aral Sea) to 
2000-2500 mm (in the Kyzylkum and Termez) and is not evenly distributed by 
month. If we say that the annual evaporation is 100%, 80-85% of it falls on the 
warm period of the year (May-October). Even the amount of evaporation in July is 
8-10 times higher than in January. 
Humidity is one of the most important climatic elements in the arid plains of 
Uzbekistan. Humidity, in particular the absolute humidity, which is the amount of 
water in the air, is not evenly distributed throughout the country. Absolute 
humidity varies from north to south, depending on air temperature and the 
condition of the earth's surface. In winter, especially in January, the average 
temperature in the north of the plains of Uzbekistan is Z-4 mm, and in the south - 
5-6 mm. However, due to the low temperature in the mountains, the absolute 
humidity is less than 1-2 mm. The average absolute humidity in summer is higher 
than in winter, reaching 19-25 mm on the Aral Sea, in the Lower Amudarya, and 
9-10 mm in the Kyzylkum. Hence, the distribution of absolute humidity in summer 


is y in addition to temperature It also depends on the availability of irrigated lands 
and water bodies (rivers, canals, reservoirs, lakes). 
The relative humidity in the territory of Uzbekistan changes throughout the year, 
decreases in summer and increases in winter due to lower temperatures and 
increased precipitation. In winter (January) in the country, the relative humidity in 
the plains varies from 70-80% from north to south, in the mountains it can decrease 
to 55-59% and below, in Tashkent - 79%, in Termez - 79%. in Chimgan, which has 
a height of 1438 m, by 59%, the absolute height is 1545 m. in Shahimardon, which 
is 55%. 
Due to high temperatures and almost no precipitation in Uzbekistan in summer 
(July), the average relative humidity is lowest in the Kyzylkum, Karshi and 
Sherabad deserts, at 30-35%. In the rest, the average relative humidity varies 
around 40-50% (40% in Tashkent, 46% in Andijan, 48% in Chimgan). It is of 
practical importance to know the number of dry days in the agriculture of 
Uzbekistan (days with a relative humidity of less than 30% are called "dry days"). 
Such days vary around 155-202 days in the plains of the republic: in Turtkul - 155 
days, in Kogan - 202 days. 
Another peculiarity of Uzbekistan's climate is that it is far from the oceans, inside 
the Eurasian continent, so there are few cloudy days and the weather is clear for 
most of the year. There are many open days in the territory of Uzbekistan, 143-168 
days a year, while cloudy days are only 52-94 days: in Mirzachol 143 days are 
open, 83 days are cloudy, in Samarkand 155 days are open, It will be 77 days 
cloudy, 168 days clear in Kogan and 54 days cloudy. The most open and the least 
cloudy days in both plains and mountains of the republic are August-September. 
During this period, open days in the plains are 19-27 days, and cloudy days are 0-4 
days; in the mountains the open days are 12-15 days. The most cloudy days of the 
year are in January-March. During this period, there will be 26-40 cloudy days in 
the plains of Uzbekistan: 26 days in Khiva, 29 days in Kogan, 39 days in Fergana, 
40 days in Kitab. 


Precipitation and snow cover. In Uzbekistan, where there is enough light and heat, 
on the contrary, the amount of precipitation is very low and very unevenly 
distributed throughout the region. This is due to the fact that it is located in the 
mainland of our republic, far from the oceans, the properties of air masses and 
relief. Turkestan, including Uzbekistan, is affected by a dry, cold air mass from the 
northeast in winter - the Siberian anticyclone. In summer, the western and north-
western air masses heat up due to the extreme heat of the Turan plain, the 
formation of "thermal depression", the decrease in relative humidity, the difficulty 
of condensation and the absence of precipitation. As a result, very little 
precipitation falls on the plains of Uzbekistan, especially in the north-west. The 
lowest precipitation areas in the country are the Lower Amudarya, the western part 
of the Kyzylkum and the western part of the Fergana Valley, with an average 
annual precipitation of 80-100 mm: Khiva - 79 mm, Nukus - 82 mm, Qo In the 
blood — 89 mm, in the roof — 108 mm. In the rest of the plains of Uzbekistan the 
annual precipitation is about 300 mm: in Churuk - 122 mm, in Shafirkan - 120 
mm, in Karakol - 114 mm, in Termez - 133 mm, in Navoi - 177 mm, in Karshi - 
225 mm, Kattako 100-252 mm in diameter. 
Annual precipitation is increasing in the foothills and mountains of Uzbekistan. 
This is due to the fact that as the temperature rises, condensation occurs and 
precipitation occurs. In addition, due to the fact that the precipitation is mainly 
brought by the western air masses, the western and south-western slopes of the 
mountains of the republic receive more precipitation than the northern and eastern 
slopes. 
Precipitation in the foothills of Uzbekistan averages 300-550 mm per year (Denau 
- 360 mm, Kamashi - 327 mm, Samarkand - 328 mm, Tashkent - 359 mm, Jizzakh 
- 425 mm, Kitab - 545 mm). falls. The highest precipitation in the republic falls on 
its mountainous part, in particular, on the western and south-western slopes of the 
Western Tianshan, Zarafshan and Gissar mountains, with an average annual 
precipitation of 550— Precipitation is 900 mm, and in some places more than 900 


mm: in Hazrati Bashir - 550 mm, in the East - 625 mm, in Chimgan - 787 mm, in 
Khumson - 879 mm, in Omonkoton - 881 mm. 
In addition to the uneven distribution of precipitation in the territory of Uzbekistan, 
it does not fall evenly in the seasons. 30-50% of the total precipitation falls in 
spring, 25-40% in winter, 10-12% in autumn and 1-10% in summer. It is obvious 
that the highest amount of precipitation in the country falls in the spring and winter 
months. The main reason for this is the formation of a middle zone front zone in 
the territory of Uzbekistan, which separates the cold air masses from the warm 
tropical air masses in winter and spring, and the movement of cyclones intensifies 
and precipitation occurs. 
In the plains of Uzbekistan, in particular, Ustyurt, Kuy i Amudarya, Kyzylkum, 
Lower Zarafshan, Karshi and Sherabad deserts have the highest precipitation in the 
spring, during which 35-50% of the total precipitation falls: in Ustyurt 35%, Lower 
In the Amudarya 42-45%, in the Kyzylkum 48%, in the Lower Zarafshan 44-45%, 
and in the Karshi and Sherabad deserts 44-45% of precipitation falls in the spring. 
Our republic is mountainous and has the highest precipitation in the mountainous 
region 
In spring, it makes up 41-49% of the annual rainfall 
reaches 41% in Tashkent, 43% in Kosonsoy and 47% in Gallaorol 
percent, in Samarkand 49 percent, in Boysun 45 percent, in Omonkoton 
45%, in Hazrat Bashir 45%, in the East 46% in spring 
corresponds to. 
The highest annual rainfall in the country is in March, which is 14-24% of the 
annual rainfall. 14% in Andijan, 17% in Tashkent, 20% in Shafirkan, 21% in 
Karshi, 24% in Urgench, 20% in Omankotan and Kitob in March. 
The lowest rainfall in Uzbekistan is in the summer months. In this season in the 
deserts of the Lower Amudarya, Kyzylkum, Mirzachul, Karshi and Sherabad 1-7% 


of annual precipitation (in Termez and Sherabad - 1%, in Karshi and Karakol - 2%, 
in Tomdi - 3%, in Gallaaral —4%, in Urgench 7%). In summer, due to the fall of 
the mountains and the decrease in temperature towards the mountains, the 
precipitation increases to 13-26% of the annual amount (in Chatkal - 13%, in Kuva 
- .14%). The lowest precipitation in summer is in August, with no precipitation at 
all in Surkhan-Sherabad oasis, Karshi desert, Lower Zarafshan and Kyzylkum; 
Tashkent, 1 mm in the Mirzachul oasis, 1-3 mm in the Lower Amudarya, 1-10 mm 
in the Fergana Valley. It's raining. However, in the summer months in some 
regions of Uzbekistan, including the Zarafshan, Fergana, Chirchik valleys, Nurata 
nets. 50 mm of rain was recorded in Tashkent, 37 mm in Bukhara, 75 mm in 
Jizzakh and 82 mm in Samarkand. 
In winter, most of the precipitation in Uzbekistan is in the form of heavy snow. 
Although it snows in all parts of the republic, the snow cover in the plains remains 
unstable for an average of 5-20 days. Such places include Ustyurt, Lower 
Amudarya, Kyzylkum, Lower Zarafshan, Karshi and Surkhan-Sherabad oasis. 
Snow lasts for 50 days in Karakol, 15 days in Sherabad and Termez, 17 days in 
Turtkul, 11 days in Karshi and 20 days in Tomdi. In other parts of the plain and 
foothills, the average snowfall is 20-45 days (29 days in Guzar, 21 days in 
Kattakurgan, 35 days in Mirzachol, 39 days in Samarkand and Kitab, 43 days in 
Tashkent. day) is preserved. In the mountains of the republic the snow cover does 
not melt for a long time (up to 2-6 months), and in the highest parts there is a 
permanent snow cover. 
In the plains of Uzbekistan the snow cover is very thin, reaching 3-7 cm, and in 
some cases 10-20 cm, and in the narrow zone 20-30 cm. However, the snow cover 
in the nets is thick, about 50-100 cm, and may even exceed 1-1.5 meters in some 

Download 389.2 Kb.

Do'stlaringiz bilan baham:
  1   2   3




Ma'lumotlar bazasi mualliflik huquqi bilan himoyalangan ©fayllar.org 2024
ma'muriyatiga murojaat qiling