Научная статья на тему 'THE ROLE OF AIR TEMPERATURE AND DEW POINT DURING FOG RECURRENCES ON THE ABSHERON PENINSULA (AZERBAIJAN)'

THE ROLE OF AIR TEMPERATURE AND DEW POINT DURING FOG RECURRENCES ON THE ABSHERON PENINSULA (AZERBAIJAN) Текст научной статьи по специальности «Науки о Земле и смежные экологические науки»

CC BY
0
0
i Надоели баннеры? Вы всегда можете отключить рекламу.
Ключевые слова
fog / meteorological optical range (MOR) / air temperature / dew point temperature / automatic weather station / physical-meteorological analysis / туман / дальность метеорологической видимости (ДМВ) / температура воздуха / температура точки росы / автоматическая метеостанция / физико-метеорологический анализ

Аннотация научной статьи по наукам о Земле и смежным экологическим наукам, автор научной работы — Х. В. Мамедова

The article focuses on the characteristics of air temperature and dew point changes observed during repeated fog events in the Absheron Peninsula in 2000...2022. For this purpose, continuous observation data of Heydar Aliyev International Airport was used. Here is an analysis of all types of fog by month of occurrence. The limits of total fog, Meteorological Optical Range ≤ 500 m. and 501...1000 m. are considered in the analysis. Repeating such criteria, attention was paid to the recorded air temperature and dew point indicators for I...III, IV...VI and X...XII months of the year. The analyzes show that the fogs observed in the peninsula are mostly recorded at a temperature of 6...8 0C. The most commonly observed dew point temperature ranges of 0,0...0,3 0C and 1,0...1,2 0C at all ranges of MOR in fog repeats. The results of the research are of particular importance for the planning of the work of all transport areas and the forecast of fogs.

i Надоели баннеры? Вы всегда можете отключить рекламу.
iНе можете найти то, что вам нужно? Попробуйте сервис подбора литературы.
i Надоели баннеры? Вы всегда можете отключить рекламу.

РОЛЬ ТЕМПЕРАТУРЫ ВОЗДУХА И ТОЧКИ РОСЫ ПРИ ОПРЕДЕЛЕНИИ ПОВТОРЯЕМОСТИ ТУМАНА НА АБШЕРОНСКОМ ПОЛУОСТРОВЕ (АЗЕРБАЙДЖАН)

В статье рассмотрены особенности изменения температуры воздуха и точки росы, наблюдавшиеся во время повторных туманов на полуострове Абашерон в 2000...2022 гг. Для этого были использованы данные постоянного мониторинга Международного аэропорта им. Гейдара Алиева. В анализе учитываются пределы общего тумана, дальность метеорологической видимости (ДМВ) ≤ 500 м. и 501...1000 м. При повторении таких критериев обращали внимание на регистрируемые показатели температуры воздуха и точки росы для I...III, IV...VI и X...XII месяцев года. Анализы показывают, что наблюдаемые на полуострове туманы в основном фиксируются при температуре 6...8 0С. Наиболее часто наблюдаемые температуры точки росы во всех диапазонах ДМВ в повторах тумана находятся в пределах 0,0...0,3 0С и 1,0...1,2 0С. Результаты исследования имеют особое значение для планирования работы всех транспортных направлений и прогнозирования туманов.

Текст научной работы на тему «THE ROLE OF AIR TEMPERATURE AND DEW POINT DURING FOG RECURRENCES ON THE ABSHERON PENINSULA (AZERBAIJAN)»

Hydrometeorology and ecology №2 2024

UDC 551.5

IRSTI 37.21

THE ROLE OF AIR TEMPERATURE AND DEW POINT DURING FOG RECURRENCES

ON THE ABSHERON PENINSULA (AZERBAIJAN)

H.V. Mammadova

National Aviation Academy AZ1044, Baku, Azerbaijan

E-mail: hajar.mammadova@azans.az

The article focuses on the characteristics of air temperature and dew point changes observed

during repeated fog events in the Absheron Peninsula in 2000...2022. For this purpose,

continuous observation data of Heydar Aliyev International Airport was used. Here is an

analysis of all types of fog by month of occurrence. The limits of total fog, Meteorological

Optical Range ≤ 500 m. and 501...1000 m. are considered in the analysis. Repeating such

criteria, attention was paid to the recorded air temperature and dew point indicators for

I...III, IV...VI and X...XII months of the year. The analyzes show that the fogs observed in the

peninsula are mostly recorded at a temperature of 6...8 0C. The most commonly observed dew

point temperature ranges of 0,0...0,3 0C and 1,0...1,2 0C at all ranges of MOR in fog repeats.

The results of the research are of particular importance for the planning of the work of all

transport areas and the forecast of fogs.

Keywords: fog, meteorological optical range (MOR), air temperature, dew point temperature, automatic

weather station, physical-meteorological analysis.

Accepted:16.05.24

DOI: 10.54668/2789-6323-2024-113-2-34-41

INTRODUCTION

Recurrence of fog events is observed with

decreasing Meteorological Optical Range (MOR)

(Huseynov N.Sh.,2011, Guliyev H.I. et al, 2004).

This atmospheric phenomenon poses a threat

to agriculture and transport. Reduced visibility

creates difficulties in driving a vehicle, and as a

result, accidents are inevitable (Tanriverdiyev X.K.

et al, 2015, Mehdiyev A.S. et al, 2008). The area of

transport where fog events pose a greater threat is

air transport. Loss of horizontal visibility paralyzes

the operation of air transport. This violates the

minimum visibility of aircrafts, does not allow them

to take off and land on the runway, free movement

and approach to the stop (Tanriverdiyev X.K. et al,

2015, Huseynov N.Sh., 2011, Mehdiyev A.S. et al,

2008). On 27.03.1977, which went down in history

as the «Tenerife airport tragedy», the failure to

track the movement of two aircrafts on the runway

resulted in the tragic loss of 583 passengers on both

aircrafts. There are many such facts in the history

of air transport (Mammadova G.A., 2017). For this

reason, the constant repetition and study of fog

events is important for the safety of transport.

The phenomenon of fog is characterized

by the loss of meteorological visibility due to the

accumulation of sublimation and condensation

products in the atmospheric layer near the surface

of the earth in calm weather conditions, at certain

temperature and dew point limits. The warning

received by the Civil Aviation Authority due to

the reduction of the horizontal visibility distance

(SPECİ) is issued when the limits of 1000, 850,

550, 300, 150, 75 m are exceeded. At this time,

the control body and the staff controlling the

aircraft, according to the accepted criteria, make an

important decision for the flight with the help of

the equipment.

In order to study the occurrence of fog, its

physical properties are studied. The dependence

of fog on other meteorological parameters, the

change of its appearance and other meteorological

elements in its different extremes are constantly

attracting attention.

A. M. Shikhlinski, A. J. Eyyubov, H. I.

Guliyev, N. Sh. Huseynov, R. N. Mahmudov

and other scientists played a great role in the

investigation of various features of fog phenomena

across the country. In such studies, attention was

paid to the theoretical basis of fog, microphysics,

34

Scientific article

Mammadova. The role of air temperature and dew point...

theoretical basis of fog, microphysics, distribution

of foggy days throughout the year in space and

time.

The extensive study of the effects of

fog on air transport in the country belongs to

N. Sh. Huseynov. N. Sh. Huseynov extensively

studied the physical and geographical features

of the recurrence of fog events at the airports

of Azerbaijan, and focused on the role of other

meteorological factors in their formation.

However, the conducted research should be

constantly updated and modernized. The

increase in the number of observations, the

development of scientific and technological

tools for the statistical registration of fogs makes

it necessary to take such steps (AAR-ANS-008

Meteorological service to air traffic, Mammadov

R.M., 2013).

in the country. In addition to small aviation, in

order to increase the activity of international

and local air flights, the safety of flights must be

ensured first.

The Absheron water area has a complex

physical-geographical position (Andersen H. et al,

2020, AAR-ANS-008 Meteorological service to

iНе можете найти то, что вам нужно? Попробуйте сервис подбора литературы.

air traffic). Cold, dry, humid air masses coming to

the area from the north, south and east throughout

the year and the Caspian Sea determine the

synoptic conditions of this area (Tanriverdiyev

X.K. et al, 2015, Kanchan, L. et al, 2022). Also,

during the transitional periods of the year, fog

formation occurs in this region in clear weather

conditions and with the intervention of southern

air masses in the region. Depending on the type

of fog that occurs on the Absheron Peninsula,

depending on the conditions of its formation,

it sometimes lasts for several days and slows

MATERIALS AND METHODS

down the traffic (AAR-ANS-008 Meteorological

The fog monitoring data of the H. service to air traffic, Hydrometeorological Atlas

Aliyev International Airport (-7 m) operating of the Caspian Sea...2014).

on the Absheron Peninsula covering the

Fogs are divided into advective, radiative

years 2000...2022 were used in the research. and mixed types according to the conditions

The research was conducted on the basis of of formation (Tanriverdiyev X.K. et al, 2015,

mathematical and physical-statistical methods. Huseynov N.Sh., 2011). The formation of fogs

The observational data used in the study are on the Absheron Peninsula coincides with

based on the regular fog registration of the the cold period of the year. The main factors

most modern transmissometers installed in the that play a role in the formation of fogs are air

automatic meteorological stations. During the temperature and dew point (Tanriverdiyev X.K.

analysis, the occurrences of fog recurrence at et al, 2015, Ayyubov A.C. et al, 1984). That is

different thresholds of air temperature and dew why, the role of air temperature and dew point in

point recorded in the observations of all types of their repetition was investigated in the research

fog were investigated. They are grouped by I...VI work on the months of the year.

and X...XII months according to the recurrence

During fog events, the repetitions of air

characteristics of fog events ( Tanriverdiyev temperature and dew point in different gradations

X.K. et al, 2015, Mammadov R.M., 2013).

are distributed differently. Thus, during the years

The purpose of the study

2000...2022, in repeated fog events in January,

Determining

the

recurrence February and March, 28 % of the cases where the

characteristics of fog events at different extremes meteorological optical range was ≤ 500 m were

of air temperature and dew point throughout 6...8 0C, 24 % were 4...6 0C, 14 % were 0...2 0C,

the year. For this purpose, the characteristics 12 % occurred in air temperature conditions

of their recurrences in several gradations of air of 2...4 0C. At this MOR threshold, 1 % each

temperature and dew point recorded during fogs occurred in the intervals -4...-2 0C (3 %),

recurring in multi-year seasons in 2000...2022 -2...0 0C (5 %), 10...12 0C and 14...16 0C, and

are investigated.

3 % at 22...24 0C. Summarizing the result, the

main part (97 %) of repeated fogs was recorded

DISCUSSION AND RESULTS OF in the range of 0...12 0C, especially 2...10 0C

THE STUDY

(85 %), and a small part (13 %) was recorded in

The Absheron Peninsula is the most the air temperature range of -4...0 0C, 10...12 0C,

important region in terms of aviation operations 22...24 0C.

35

(22.0-23.9)

(20.0-21.9)

(18.0-19.9)

≤1000

(16.0-17.9)

(14.0-15.9)

(12.0-13.9)

(10.0-11.9)

(8.0-9.9)

(6.0-7.9)

(4.0-5.9)

(2.0-3.9)

(0.0-1.9)

≤500

(-2.0-0.1)

39

36

33

30

27

24

21

18

15

12

9

6

3

0

(-4.1-2.1)

Recurrence, %

Hydrometeorology and ecology №2 2024

Temperature, 0C

Fig. 1. Air temperature changes during fog events in months I...III

36 % of fog recurrences in the range

of 501...1000 m of MOR are 6...8 0C, 24 % are

4...6 0C, 15 % are 8...10 0C, 11 % are 2...4 0C,

8 % -i occurred in the range of 0...2 0C. At this

visibility limit, 7 % of the total fogs were repeated

in the range of air temperature -4 ... -2 0C (1 %),

-2...0 0C (2 %), 10...12 0C (2 %). It appears that

regardless of the MOR threshold, recurring fog

events in January, February, and March were

mostly recorded in the 6...8 0C air temperature

range. In addition, 94 % of the total reproduction

occurred in the air temperature conditions of

iНе можете найти то, что вам нужно? Попробуйте сервис подбора литературы.

0...10 0C. In the study, different thresholds of

the dew point observed during the fogs that

occurred in the I...III months were calculated.

Analyzes show that 51 % of fogs in cases where

MOR is ≤ 501m are formed under 0 0C, 27 % at

0,1...0,3 0C, 14 % at 1...1,2 0C, and 5% at

0,4...0,6 0C dew point deficiency. In the range

of 501...1000 m of MOR, 42 % of fogs occur

when there is a dew point deficit of 0 0C,

25 % of 0,1...0,3 0C, 18 % of 1...1,2 0C, and

7 % of 0,4...0,6 0C. At each of the other dew point

deficiency thresholds, fog repeats are no higher

than 2 % for both appearance criteria (Table 1).

Table 1

MOR

0

0,1…0,3

0,4…0,6

0,7…0,9

1,0…1,2

1,9…2,1

2,8…3,0

4,0…4,2

Variation of MOR in fogs in months I...III depending on dew point

Cases

≤ 500

≤ 1000

51

42

27

25

5

7

1

1

14

18

0

2

1

2

0

1

1647

662

If we focus on the different air temperature

thresholds recorded during fog recurrences in

April, May and June, in the phase when MOR

is below 500 m, 24 % of total recurrences are

8...10 0C, 21 % are 10...12 0C, 20 % 6...8 0C, 11 %

12...14 0C, 8 % 16...18 0C, 7 % 4...6 0C. At other

extremes of air temperature, fog recurrences are

not higher than 3%, and this accounts for 9 % of

the total cases. However, at MGM ≤ 501 m, 91 %

of the total fog events in the 4...14 0C range were

repeated (Figure 2).

In April, May, and June, 24 % of repeated

fog events within ≤1000 m of MOR were observed

at temperature limits in the range of 8...10

and 10...12 0C, 23 % were 6...8 0C, 12 % were

12...14 0C, 6 % were 14...16 0C. In the range of

2...6 0C (5 %) and 16...22 0C (6 %), fog recurrences

accounted for 11 % of all cases. However, 89 %

of the total replication occurred in the 6...16 0C

range.

36

Mammadova. The role of air temperature and dew point...

Scientific article

≤500

(22.0-23.9)

(20.0-21.9)

(18.0-19.9)

(16.0-17.9)

(14.0-15.9)

(12.0-13.9)

(10.0-11.9)

(8.0-9.9)

(6.0-7.9)

(4.0-5.9)

(2.0-3.9)

≤1000

(0.0-1.9)

Recurrence, %

26

24

22

20

18

16

14

12

10

8

6

4

2

0

Temperature, 0C

Fig. 2. Dependence of air temperature on dew point during fog events in IV...VI months

For both MOR thresholds, the highest

iНе можете найти то, что вам нужно? Попробуйте сервис подбора литературы.

fog recurrences occur in the temperature range of

6...12 0C. The analysis of dew point thresholds

observed during fogs during these months is also

of interest. The analysis shows that more fog

cases (57 %) were recorded at 0.0 0C or closer to

the MOR visibility limits below 500 m. During

fog, the visibility distance of less than 500 m

was repeated in 25 % of cases in the range of

0,1...0,3 0C, and in 9 % of cases in the range of

1...1,2 0C. Fog recurrences at other dew point

thresholds did not exceed 3 %. 91 % of the

total repeatability was recorded in the range of

0...0,3 0C and 1,0...1,2 0C, and 9 % in other dew

point ranges.

MOR

0,1…0,3

0,4…0,6

0,7…0,9

1,0…1,2

1,9…2,1

2,8…3,0

4,0…4,2

5,0…5,2

5,9…6,1

Table 2

0

Variation of MOR in fogs in IV...VI months depending on dew point

Cases

≤ 500

≤ 1000

57

53

25

27

3

11

0

2

9

5

1

0

2

0

1

1

1

0

1

1

556

235

53 % of this visibility threshold is

observed at 0 0C, 27 % at 0,1...0,3 0C, 11 % at

0,4...0,6 0C, and 5 % at 1,0...1,2 0C dew point

thresholds during the MOR threshold in the range

of 500...1000 m. Only 4 % of the occurrence of

the total ≤1000 m MOR limit occurred in the

dew point ranges of 0,7...0,9 0C, 4...4,2 0C, and

5,9...6,1 0C. 96 % of cases where MOR is below

500 m are recorded in dew point cases of 0...0,6

and 1...1,2 0C.

During fog in October, November

and December, 15 % of cases of MOR below

500 m have air temperatures of 6...8 0C, 13 %

of 12...14 0C, 12 % of 2...4 0C, 8...10 0C and

10...12 0C , 9 % were recorded in the range of 4...6 0C,

7 % in the range of 0...2 0C and 14...16 0C, and

6% in the range of 16...18 0C. In the range of

-2...0 0C, 18...20 0C and 20...22 0C, 7 % of the

total cases of MOR below 500 m are repeated.

The general repeatability shows that 93 % of

cases where MOR is ≤ 500 m during fog occur in

the air temperature range of 0...16 0C, especially

in the range of 6...12 0C (52 %).

In these months, 18 % of the cases of

MOR observed at ≤1000 m during fog were

6...8 0C, 16 % 2...4 0C, 14 % 8...10 0C, 12 %

12...14 0C, 9 % 4...6 0C, 9 % 12...14 0C, 9 %

14...16 0C, 6 % 0...2 0C, 5 % 18...20 0C. In the

temperature range of -2...0 0C, 16...18 0C and

20...22 0C, this indicator is only 5 % of the total

repeatability. However, 95 % of the repetition

of this appearance threshold was found to occur

in the range 0...16 0C, especially in the range

6...12 0C (44 %).

37

(20.0-21.9)

(18.0-19.9)

≤1000

(16.0-17.9)

(14.0-15.9)

(12.0-13.9)

(10.0-11.9)

(8.0-9.9)

(6.0-7.9)

(4.0-5.9)

(2.0-3.9)

(0.0-1.9)

≤500

iНе можете найти то, что вам нужно? Попробуйте сервис подбора литературы.

(-2.0-0.1)

20

18

16

14

12

10

8

6

4

2

0

(-4.1-2.1)

Recurrence, %

Hydrometeorology and ecology №2 2024

Temperature, 0C

Fig. 3. Dependence of air temperature on dew point during fog events in X...XII months

In recurring fogs in October, November,

and December, 58 % of cases where MOR

was ≤500 m had a dew point of 0 0C, 21 %

0,1...0,3 0C, 13 % 1...1,2 0C, 7 % 0,4...0,6 0C

recorded in the interval. Only 1 % of the total

cases where this appearance threshold was

repeated occurred in other dewpoint cases, 99 %

in the 0...0,6 0C and 1,0...1,2 0C dewpoint range,

especially in the 0,0...0,3 0C (79 %) dewpoint range.

During these months, 48 % of 501...1000 m

MOR thresholds recorded during fogs were

repeated at 0,0 0C, 20 % at 0,1...0,3 0C, 14 %

at 0,4...0,6 0C, and 12 % at 1,0...1,2 0C dew

point thresholds. During these months, 48 % of

501...1000 m MOR thresholds recorded during

fogs were repeated at 0,0 0C, 20 % at 0,1...0,3 0C,

14 % at 0,4...0,6 0C, and 12% at 1,0...1,2 0C dew

point thresholds. 8 % of the total repeatability

was found in the dew point ranges of 0,7...0,9 0C,

1,3...3,0 0C and 5,0...5,2 0C. However, 82 % of

cases where MOR was ≤ 1000 m recorded dew

point thresholds in the range 0...0,6 0C (Table 3).

MOR

0,1…0,3

0,4…0,6

0,7…0,9

1,0…1,2

1,3…1,5

1,9…2,1

2,8…3,0

5,0…5,2

Table 3

0

Variation of MOR in fogs in X...XII months depending on dew point

≤ 500

≤ 1000

58

48

21

20

7

14

1

4

13

12

0

1

0

1

0

1

0

1

In the study, phase I of maximum cases of

MOR below 500 m in annual repeated fog events

from 2000 to 2022 is located in the range of air

temperature 0...10 0С and dew point 0,0 0 C (Table 4).

0,1...0,3 0С dew point and 0...10 0С range of

air temperature is maximum phase II when MOR

≤500 m is observed during fog. The dew point

range of 1,0...1,2 0С and the temperature range of

0...10 0С is phase III where the maximum of MOR

is observed below 500 m. A total multiyear MOR

of less than 500 m was observed in 3,668 cases.

During the multi-year period of fog, the

first phase in which the cases of MOR recorded

at the range of ≤ 1000 m were repeated more often

occurred in the conditions of air temperature

0...14 0С and dew point 0,0 0С (Table 5).

The second phase, where this appearance

threshold is more repeated, is the temperature

range of 2...12 0С and the dew point range

of 0,1...0,3 0С. The third maximum phase, in

which the limit of MOR ≤1000 m is repeated,

coincides with the approximate range of dew

point 1,0...1,2 0C and temperature 2...12 0С.

38

Mammadova. The role of air temperature and dew point...

Scientific article

≤ 500 m

Table 4

Variation of MOR below 500 m as a function of air temperature and dew point in annual replicated

iНе можете найти то, что вам нужно? Попробуйте сервис подбора литературы.

fog from 2000 to 2022

0

Td, C

MOR

0

0,1…0,3

0,4…0,6

0,7…0,9

1,0…1,2

Summary

T°, C

-4,1…2,1

1

0

0,2

0,0

0,1

2

-2,0…0,1

2

1

0,3

0,0

0,3

3

0,0…1,9

5

2

0,5

0,1

1,4

9

2,0…3,9

9

3

0,9

0,2

2,7

16

4,0…5,9

8

4

0,9

0,1

1,9

15

6,0…7,9

13

5

0,6

0,1

1,4

20

8,0…9,9

5

3

0,3

0,0

2,8

12

10,0…11,9

4

2

0,2

0,1

0,9

8

12,0…13,9

3

2

0,5

0,1

0,2

6

14,0…15,9

2

1

0,3

0,1

0,1

3

16,0…17,9

2

0

0,0

0,1

0,4

3

18,0…19,9

1

0

0,1

0,0

0,3

2

20,0…21,9

0

0

0,0

0,0

iНе можете найти то, что вам нужно? Попробуйте сервис подбора литературы.

0,1

1

22,0…23,9

1

0

0,1

0,0

0,0

1

Summary

56

23

5

1

13

3668

Table 5

Variation of the 501…1000 m threshold of MOR as a function of air temperature and dew point in

repeated annual fogs from 2000 to 2022

≤ 000 m

MOR

Td, 0C

T, C

0,0

0,1…0,3

0,4…0,6

0,7…0,9

1,0…1,2

1,9…2,1

2,8…3,0

4,0…4,2

Sum

-4,1…2,1

0

0

0

0

0

0,0

0,0

0,0

0

-2,0…0,1

0

0

0

0

0

0,0

0,0

0,0

1

0,0…1,9

3

1

1

0

1

0,2

0,0

0,0

6

2,0…3,9

6

2

1

0

3

0,5

0,2

0,1

13

4,0…5,9

7

4

1

0

2

0,2

0,5

0,3

15

6,0…7,9

13

8

2

0

3

0,2

0,0

0,3

27

0

8,0…9,9

7

4

1

1

2

0,0

iНе можете найти то, что вам нужно? Попробуйте сервис подбора литературы.

0,2

0,0

16

10,0…11,9

4

2

1

0

1

0,2

0,3

0,1

10

12,0…13,9

2

1

1

0

0

0,0

0,0

0,0

5

14,0…15,9

3

1

0

0

0

0,0

0,0

0,0

4

16,0…17,9

0

0

0

0

0

0,0

0,0

0,0

2

18,0…19,9

1

0

0

0

0

0,1

0,1

0,2

2

20,0…21,9

0

0

0

0

0

0,0

0,0

0,0

0

22,0…23,9

0

0

0

0

0

0,0

0,0

0,0

0

Sum

47

23

10

2

13

1

1

1

1333

39

Hydrometeorology and ecology №2 2024

A total of 501...1000 m MOR occurred

in 1333 cases in the multiyear period. Given the

small numbers of repeated occurrences during

fog in the tables, it can be said that the main fog

occurrences occurred at temperatures of 6...8 0С

and dew points of 0,0 0C at both analyzed MOR

thresholds.

CONCLUSION

The following results were obtained

during the study of the dependence of MOR

on air temperature and dew point thresholds

during repeated fogs in Absheron Peninsula in

2000...2022:

1. In January, February, March, 75 % of

cases of MOR below 500 m have an air temperature

iНе можете найти то, что вам нужно? Попробуйте сервис подбора литературы.

of 2...10 0C, in April, May, June, 76 % of cases are

6...14 0C, and in October, November, December,

60 % It happened in the range of 4...14 0C.

2. In January, February, March, 85 % of

cases of MOR below 501...1000 m air temperature is

2...10 0C, in April, May, June 83 % is 6...14 0C,

and 67 % in October, November, December It

happened in the range of 2...12 0C.

3. All MOR thresholds for year-round

recurring fog occur in the dew point ranges of 0.0

0

C, 0,1...0,3 0C and 1,0...1,2 0C.

4. During fog, the maximum repetition of

both MOR thresholds occurs at 0,0 0C dew point

conditions with temperatures of 6...8 0C.

The analyzes of the fogs occurring in the

Absheron water area are used for future forecasting,

air transportation planning, charting, etc. can be

used in the assessment of the logistics interests of

the state and in the planned organization of the

work of transport types.

In the conditions of modern climate

changes, the process of increasing the temperature

of the air and decreasing the amount of precipitation

continues on the Absheron peninsula. In such

conditions, air humidity is also decreasing. Our

analysis shows that global warming will weaken

the recurrence of fog events on the Absheron

Peninsula, leading to internal shifts in its timing.

Therefore, it is recommended to give priority to

the use of regional forecast models in which the

local relief factor is taken into account in fog

forecasting.

REFERENCES

1. Andersen H, Cermak J, Fuchs J, Knippertz P,

Gaetani M, Quinting J et al (2020) Synoptic-scale

controls of fog and low-cloud variability in the

Namib Desert. Atmos Chem Phys 20(6):3415–

3438. – URL: https://doi.org/10.5194/acp-203415-2020

2. AAR-ANS-008 Meteorological service to air

traffic. Guidance document.

3. National Atlas of the Republic of Azerbaijan

[Atlas] / – Baku: State Land and Mapping

Committee, – 2014. – 444 p.

4. Geography of the Republic of Azerbaijan.

Physical Geography [Volume I] / X.K.

Tanriverdiyev, H.A. Khalilov, M.Y. Khalilov

[and others]. - Baku: Europe, – 2015. –530 p.

5. Ayyubov, A.C. Climatic resources of the

Azerbaijan SSR / A.C. Ayyubov, G.A. Hajiyev Baku: Science, – 1984. – 136 p.

6. Huseynov, N.Sh. Synoptic meteorology /

N.Sh. Huseynov. - Baku: Sada, –2011. –316 p.

7. Hydrometeorological Atlas of the Caspian Sea

[Map] / – Baku: Nafta-Press, –2014. –300 p.

8. Guliyev H.I. Course of short lectures on

«Aviation meteorology» / H.I. Guliyev, N.Sh.

Huseynov. - Baku: MAA, – 2004. – 79 p.

9.

Mahmudov,

R.N.

Analysis

of

hydrometeorological conditions in Azerbaijan /

R.N. Mahmudov. - Baku: Ziya, – 2015. – 106 p.

10. Kanchan, L., Kirti, A. A review on factors

infuencing fog formation, classifcation,

forecasting, detection and impacts // –Ranchi:

Rendiconti Lincei. Scienze Fisiche e Naturali,

–2022. v. 33, –p. 319–353.

11. Mehdiyev, A.S. Basics of meteorology and

climatology / A.S. Mehdiyev, A.S. Ahmadov Baku: Science, – 2008. – 340 p.

12. Mammadov, R.M. Hydrometerology of the

Caspian Sea / R.M. Mammadov. -Baku: Europe,

– 2013. – 176 p.

13. Mammadova, G.A. Climate of Azerbaijan.

Textbook / G.А. Mammadova. -Baku: National

Aviation Academy, –2017. –194 p.

14. Safarov, S.H. Economic hydrometeorology

(teaching material) / S.H. Safarov. - Baku: MAA,

– 2019. – 134 p.

15. State Committee of the USSR on

Hydrometeorology, Azerbaijan Republican

Committee on Hydrometeorology. Climatic

regime and meteorological conditions of fog at

Baku airport, –1988. –52 p.

16. Website Encyclopaedia Britannica Online–

URL:htts://www.britannica.com/event/Tenerifeairline-disaster [Electron. resource](Date of

40

Scientific article

Mammadova. The role of air temperature and dew point...

АБШЕРОН ТҮБЕГІНДЕГІ (ӘЗІРБАЙЖАН) ТҰМАННЫҢ ҚАЙТАЛАНУЫН

АНЫҚТАУДАҒЫ АУА ТЕМПЕРАТУРАСЫ МЕН ШЫҚ НҮКТЕСІНІҢ РӨЛІ

Х. В. Мамедова

Ұлттық авиация академиясы AZ1044, Баку, Әзірбайжан

E-mail: hajar.mammadova@azans.az

Мақалада 2000...2022 жж. Абашерон түбегінде қайталанған тұман кезінде байқалған

ауа температурасы мен шық нүктесінің өзгеру ерекшеліктері қарастырылған. Бұл үшін

Гейдар Әлиев халықаралық әуежайының тұрақты мониторингі деректері пайдаланылды. Талдауда жалпы тұманның шегі, метеорологиялық көріну қашықтығы ≤ 500 м.

және 501...1000 м. ескеріледі. Мұндай критерийлердің қайталануы кезіндегі ауа температурасы мен шық нүктесінің I...III, IV...VI және X...XII айларында тіркелген көрсеткіштеріне назар аударылды. Талдаулар түбекте байқалған тұман негізінен 6...8 ⁰С температурада тіркелетінін көрсетеді. Тұманның қайталануындағы метеорологиялық көріну

қашықтығының барлық диапазонында жиі байқалатын шық нүктесінің температурасы 0,0...0,3 ⁰С және 1,0...1,2 ⁰С аралығында болады. Зерттеу нәтижелері барлық көлік

iНе можете найти то, что вам нужно? Попробуйте сервис подбора литературы.

бағыттарының жұмысын жоспарлау және тұманды болжау үшін ерекше маңызға ие.

Түйін сөздер: тұман, метеорологиялық көріну қашықтығы, ауа температурасы, шық нүктесінің температурасы, автоматты метеостанция, физика-метеорологиялық талдау.

РОЛЬ ТЕМПЕРАТУРЫ ВОЗДУХА И ТОЧКИ РОСЫ ПРИ ОПРЕДЕЛЕНИИ

ПОВТОРЯЕМОСТИ ТУМАНА НА АБШЕРОНСКОМ

ПОЛУОСТРОВЕ (АЗЕРБАЙДЖАН)

Х. В. Мамедова

Национальная авиационная академия AZ1044, Баку, Азербайджан

E-mail: hajar.mammadova@azans.az

В статье рассмотрены особенности изменения температуры воздуха и точки росы, наблюдавшиеся во время повторных туманов на полуострове Абашерон в 2000...2022 гг. Для

этого были использованы данные постоянного мониторинга Международного аэропорта

им. Гейдара Алиева. В анализе учитываются пределы общего тумана, дальность метеорологической видимости (ДМВ) ≤ 500 м. и 501...1000 м. При повторении таких критериев

обращали внимание на регистрируемые показатели температуры воздуха и точки росы

для I...III, IV...VI и X...XII месяцев года. Анализы показывают, что наблюдаемые на полуострове туманы в основном фиксируются при температуре 6...8 0С. Наиболее часто наблюдаемые температуры точки росы во всех диапазонах ДМВ в повторах тумана находятся в пределах 0,0...0,3 0С и 1,0...1,2 0С. Результаты исследования имеют особое значение

для планирования работы всех транспортных направлений и прогнозирования туманов.

Ключевые слова: туман, дальность метеорологической видимости (ДМВ), температура воздуха, температура точки росы, автоматическая метеостанция, физико-метеорологический анализ.

Сведения об авторе/Автор туралы мәліметтер/Information about author:

Мамедова Хаджар Видади кызы - инженер по качеству, «Азербайджан Хава Йоллары» Закрытое Акционерное Общество «Азераеронавигация» Управление Воздушным Движением Международный аэропорт им. Гейдара

Алиева, sofiyarom@mail.ru

Мамедова Хаджар Видадикызы – сапа инженері, «Әзірбайжан Хава Йоллары» Жабық Акционерлік Қоғамы,

«Әзіреронавигация» Гейдар Әлиев атындағы Халықаралық Әуе Қозғалысын Басқару әуежайы, sofiyarom@mail.ru

Mammadova Hajar Vidadi - quality engineer, «Azerbaijan Hava Yolları» CJSC «Azeraeronavigation» Air Traffic

Department Haydar Aliyev International Airport, sofiyarom@mail.ru

41

i Надоели баннеры? Вы всегда можете отключить рекламу.