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Atmospheric precipitation

Last update of indicator24.01.2024

Indicator definition

The indicator describes the observable development of atmospheric precipitation totals as one of the negative manifestations of climate change on the territory of the Slovak Republic.

Units

°C, mm, %

Metadata

Key question

What is the observable development of atmospheric precipitation?

Key messages

  • The year 2022 was below normal in terms of precipitation as a whole, 13 daily precipitation totals of 70 mm or more were registered in Slovakia in 2022, i.e. more than three times less than in the previous year
Change since 2005 Change since 2015 Last year-on-year change
- emo_sad emo_sad
  More and more significant negative effectsof climate change were recorded. The negative effects of climate change continued, the deficit of electricity was extraordinary to extreme

Summary assessment

Annual total atmospheric precipitation in Slovakia (2022)
 

Zdroj: SHMÚ


Percent of normal (1991–2020) annual precipitation totals for 2022

Source: SHMI

Detailed assessment

Annual total atmospheric precipitation (1951 – 2022)

The year 2022 was below normal in terms of precipitation. The annual value of the spatial total of atmospheric precipitation for the entire territory of Slovakia, calculated by the isohyet method, reached 619 mm (deficit of 143 mm, 81% compared to the long-term average 1901–2000). In western Slovakia, the annual value of the spatial total of precipitation reached 508 mm (a deficit of 154 mm, 77% compared to the long-term average of 1901-2000). In central Slovakia it was 724 mm (deficit 148 mm, 83% compared to the long-term average 1901–2000) and in eastern Slovakia it was 607 mm (deficit 140 mm, 81% compared to the long-term average 1901–2000). The relatively highest annual precipitation totals were recorded in some parts of the Tatras, Low Tatras and northwestern Slovakia, for example Lomnický štít 1877 mm, Skalnaté Pleso 1314 mm, Zuberec-Zverovka 1231 mm, Oravská Lesná 1149 mm, Martinské hole 1148 mm, Jasná pod Chopkom 1105 mm, Chopok 1085 mm, Ždiar – Podspády 1079 mm, Vitanová – Oravice 1063 mm, Vrátna dolina 1055 mm, Novoť 1029 mm, Tatranská Javorina 1023 mm and Stará Bystrica 1009 mm. On the contrary, the lowest annual rainfall totals were registered in some places of the Danube Plain, or in adjacent areas, for example, less than 400 mm was 376 mm in Cífer, 379 mm in Jánošíkov na Ostrov and 395 mm in Boleráz.

The balance of atmospheric precipitation in individual months of 2022 was negative in Slovakia in January, March, April, May, June, July, August, October and November. On the contrary, more abundant precipitation was recorded in September, but also in December. Especially at the end of spring and during the summer, strong storms gradually started to occur in some cases and their occurrence was quite often local in this season. The precipitation deficit was already carried over from the fall and the beginning of winter in 2021 and continued continuously until the end of summer in 2022, while its overall extent and significance took on an extraordinary to extreme character in larger areas of Slovakia. The resulting precipitation deficit was partially corrected locally by summer stormy downpours. Above all, there was a lot of rain in the second and third decade of September, which corrected the very unfavorable drought indicators and revitalized the natural landscape. In October and also in November, there was less precipitation again, but this did not affect most of the drought characteristics as adversely as it was in the previous seasons.

The winter of 2021/2022 was, if we evaluate Slovakia as a whole, below average in terms of precipitation. This winter was also above average warm, although during its course, there were transitional frosty periods and at this time more significant temperature fluctuations and certain regional differences in temperature conditions and in the occurrence of snow cover were registered. For example, on 27 December 2021, the minimum daily air temperature in Podolínec dropped to minus 27.3 °C, but in the extreme south-west of Slovakia it was already relatively warm at that time, and on the very first day of 2022, the maximum daily air temperature in Bratislava was recorded at the airport of 16 .0 °C. This had an impact on the stability of the snow cover at lower altitudes. Its lack at the beginning of spring 2022 contributed, in addition to other causes, to the development of an extraordinary to extreme drought, which lasted a long time in Slovakia in 2022 and affected a large area.

In the summer of 2022, as it happens more regularly at this time of the year, stormy downpours again contributed a large proportion to the total amount of precipitation at this time of the year. The highest daily precipitation totals recorded during these storms this summer include: 21/08/2022 in Lipovce 115 mm, 21/08/2022 in Trstená 107 mm and 21/08/2022 in Ústí nad Priehradou 106 mm.

In 2022, 3 daily rainfall totals of 100 mm or more were recorded in the SHMÚ network of rain gauge stations. They occurred on August 21, 2022. In 2022, 13 daily precipitation totals of 70 mm or more were registered in Slovakia, which is more than three times less than in the previous year. In 2022, 57 daily precipitation totals with a value of 50 mm or more were registered in the SHMÚ network of precipitation measuring stations, and it was even more than four times less than in the previous year. It was also a symptom of the lack of atmospheric precipitation and drought this year.

The annual amount of atmospheric precipitation in Hurbanov in 2022 was 469.2 mm.

Since 1951, the annual amount of atmospheric precipitation in Hurbanov represents a statistically insignificant upward trend (increase of 19 mm) in a linear trend until 2022, while the years 1965-1966, 2010 (maximum), 2013-2014 and 2016 were statistically significantly rich in precipitation totals , on the contrary, the years 1967, 1971, 1978, 1982 – 1983, 1990, 2003 and 2011 (minimum) were the poorest in terms of annual totals. We observed the highest negative difference (deficit) in the annual precipitation total compared to the normal value for the period 1991-2020 in 2011 (- 246.7 mm), on the contrary, the highest positive difference in 2010 (406.5 mm).

The annual amount of atmospheric precipitation in Liptovský Hrádok in 2022 was 573.4 mm. Since 1951, the annual amount of atmospheric precipitation in Liptovský Hrádok represents a statistically significant upward trend in a linear trend until 2022 (an increase of 110 mm), while the years 1970, 1974, 2004, 2010 (maximum), 2014, 2016 – 2017 and 2020 were statistically significantly rich in precipitation totals, on the contrary, the years 1956 (minimum), 1968 – 1969, 1971, 1973, 1982 – 1983 and 2003 were the poorest in annual totals. We observed the highest negative difference (deficit) in the annual precipitation total compared to the normal value for the period 1991-2020 in 1956 (-263.2 mm), on the contrary, the highest positive difference in 2010 (250.7 mm).

Development of annual precipitation totals (1951 – 2022)

 

Contact

Ing. Dorota Hericová, SAŽP, dorota.hericova@sazp.sk

Definitions related to the indicator:


CMS Meteorology and Climatology was established by the resolution of the Minister of the Slovak Republic. It was not a proposal for a new monitoring network, as the measurement networks of meteorology and climatology are one of the oldest systematic observation networks in Slovakia. The project complements the complex environmental monitoring system of the Slovak Republic with additional full-scale monitoring sub-systems. The task of measuring networks of meteorology and climatology is to obtain data on the state and progress of the weather and on the state and development of the climate system. The operation of measuring networks of meteorology and climatology is bound by the Slovak Republic's international obligations (Ratification of the WMO Convention dated 11.10.1947, Ratification of the Convention on Civil Aviation dated 18.4.1945, Ratification of the Framework Convention on Climate Change dated 25.8.1994). Ratification of the Framework Convention on Climate Change by the Slovak Republic dated August 25, 1994 obliges the Slovak Republic, among other things, to maintain long-term stable monitoring of the climate system.

The monitoring network is a network of climatological stations consisting of 104 stations with a climatological program. Of these, 27 are integrated into the network of terrestrial synoptic stations and 77 stations are with a volunteer observer, of which 9 stations are managed by other organizations, but with instrumentation and under the methodological supervision of the SHMÚ. Measurements of 19 quantities are made 3 times a day. The mentioned stations are marked in the "Map of climatological stations" and the coordinates of the stations together with indicators are in the "List of climatological stations".

19 quantities are measured and observed at the climatological stations, in the table "Measured and observed quantities in the network of climatic stations" The specified quantities form the basis for the processing of climatic characteristics and indicators. Measurements and observations at climatological stations are carried out in the classic way by reading the instrument or observing the phenomenon daily at 7, 14, 21 h local mean solar time, measuring precipitation and snow cover at 7 o'clock, the occurrence of precipitation and significant weather phenomena is recorded continuously Measurements and observations are provided by voluntary observers of the SHMÚ, at stations with synoptic observations by professional observers of the SHMÚ, at stations managed by other institutions mostly by employees of this institution.

A climatic element is a statistical characteristic derived from the measurement or observation of a meteorological element, or the meteorological element itself, used for climatological purposes, e.g. average daily, monthly, annual air temperature, average amount of atmospheric precipitation in the selected period, moisture and temperature balances, etc.

Air temperature is measured at a height of 2 m above the surface. In order to measure the actual temperature of the air, the thermometer must not be exposed to direct radiation (the Sun) - so we measure in a "cold room", a special meteorological booth is used in meteorology. In this context, it is sometimes said that it can be warmer in the sun. If the thermometer direct sunlight shows very distorted values. Yes, it is warmer in the sun, but that is already our subjective feeling, which depends on whether we have black or white clothing, whether our skin is dry or wet, etc. The temperature is (one ) a physical quantity that has different values in different places and at different times. In the forecasts, we always state the lowest and highest expected temperature for the given day. So it is correct to say (in the singular): "the temperature will drop to 2 to -2 degrees", " tomorrow the (daily, highest daily, maximum) temperature will be 26 to 30 degrees", "the temperature (now in Slovakia) is in the range of 5 to 10 degrees". So the temperature does not move, but ranges from ... to ..., will, will rise, will reach ..., etc.

Atmospheric precipitation is water particles that are formed by condensation or desublimation of water vapor, occur in the atmosphere when the air temperature drops to the dew point temperature and fall on the earth's surface or are formed on it or on objects in the atmosphere. It is therefore water in liquid or solid form, which falls from various types of clouds (or fog) or settles on the earth's surface. Atmospheric precipitation belongs to hydrometeors, but not all hydrometeors are atmospheric precipitation (hydrometeors such as fog, smoke, swirling snow, water spray do not belong to precipitation). In case the falling precipitation does not reach the earth's surface, they are called virga or precipitation streaks.

Data source

: SHMÚ

 

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