Critical water level
the water level at the nearest hydrological post, above which flooding and material damage begin. An effective way (means) to establish the critical water level and the risk of flooding is a hydrological forecast.
Edwart. Glossary of terms of the Ministry of Emergency Situations, 2010
See what the "Critical water level" is in other dictionaries:
Critical Level- the water level at the nearest hydrological post, above which flooding and causing material damage begin ... Civil protection. Conceptual and terminological dictionary
1. CRITICAL, oh, oh. 1. Containing criticism (1, 4 signs). K. revision of what l. Some remarks. K. essay. K. magazine department. 2. Possessing the ability to criticize (1 2 zn.). K. mind. K. mentality. 3. Distrustful, skeptical. ◊ Critical… … encyclopedic Dictionary
CRITICAL, oh, oh. 1. Being in a state of crisis. K. age (critical). Critical temperature (temperature of the transition of a body from one state to another; special). 2. Dangerous, associated with the possibility of disrupting the normal state of something ... Explanatory dictionary of Ozhegov
critical- I oh, oh. see also critically 1) containing criticism 1), 4) Critically / chesky review of what l. Some remarks. Critical essay. Critical department of the journal. 2) having the ability to criticize 1 ... Dictionary of many expressions
STO 17330282.27.140.002-2008: Hydraulic structures of HPPs and PSPPs. Creation conditions. Norms and requirements- Terminology STO 17330282.27.140.002 2008: Hydrotechnical structures of HPPs and PSPPs. Creation conditions. Norms and requirements: 3.1 absolute movement: The movement of the points of the structure, defined as the sum of the translational and relative movements during ... ...
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SO 34.21.308-2005: Hydraulic engineering. Basic concepts. Terms and Definitions- Terminology SO 34.21.308 2005: Hydraulic engineering. Basic concepts. Terms and definitions: 3.10.28 outport: water area limited by wave protection dams in the upstream of the hydroelectric complex, equipped with mooring facilities and intended for placement ... Dictionary-reference book of terms of normative and technical documentation
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The rivers are of great importance for the economic activity of society. And this is important not only for agriculture, but also for hydropower and construction. In Russia, water levels in a river or lake are measured relative to the surface of the Baltic Sea off the coast of Kronstadt. The same technology is used for reservoirs of various types.
Water level in rivers: seasonal fluctuations
The flow of any river is affected by many factors related to the region in which the river is located, as well as seasonal changes that are possible in any climate. If the river flows through different climatic zones, then the number of factors contributing to the change in water level only increases.
The water levels in the river can rise noticeably at different times of the year. For example, during a hot period, characteristic of arid regions, the river can become shallow or completely dry up, forming the so-called wadis. While during the rainy season, rivers overflow their banks, creating flood zones that can harm economic facilities and infrastructure. The water level in rivers can also rise in winter, when ice makes it difficult for water to flow.
Anthropogenic factors
The most important and ubiquitous factor influencing how water levels in a river change is the construction of dams and dams for power plants.
The creation of dams for large hydroelectric power plants significantly changes the natural watercourse. Accordingly, the level rises above the dam, which creates a height difference necessary for generating electricity.
On the other hand, the construction of barriers along the rivers helps to protect the people living along the banks of the rivers. After all, water rises can be so significant that they harm houses, and sometimes completely destroy settlements.
By controlling the water levels in the river, a person protects his property from the elements, receives electricity, but at the same time causes irreparable damage to nature, causing the death of entire populations of living beings, whose habitat is in the flood zone of the dam. Ecologists regularly raise the question of the feasibility of building reservoirs around the world.
Although water levels in a river or lake may vary from season to season, from region to region, there is always a certain reference point. In Russia, the point in such a reference system is an ordinar located in St. Petersburg.
In summary, it is worth saying that many spheres of human activity depend on the water content of rivers. But the most sensitive to the watering regime is, of course, agriculture, on which, in turn, the direct survival of people depends.
May 10, 2017, YakutiaMedia. Water levels on the rivers of Yakutia are below critical levels. On the Lena River, the water level is 418 cm, while the critical level is 1167 cm. On the Lena, Aldan, Vilyui, Amga rivers, the processes of ice cover destruction are observed, the Yakutia Ministry of Emergency Situations told YakutiaMedia news agency.
On the Lena River, the lower edge of the ice drift is observed in the area of the settlement. Krestovsky, Lensky district, the water level is 418 cm, with a critical 1167 cm. Ice drift. The upper edge is in the area of the settlement. Vitim Lensky district, a rare ice drift.
Near the city of Lensk, ice shifts and leads are observed, the water level is 296 cm, with a critical level of 1760 cm.
Near the city of Olekminsk there are leads, the water level is 174 cm, with a critical level of 1350 cm.
On the Aldan River, there is a rise in water levels, rims, water on ice, the ice has risen. In the upper reaches, ice shifts and leads are noted, downstream - rims, the ice has risen.
At n.p. In Ust-Maya, Ust-Maya region, water lines are observed, the water level is 403 cm, with a critical level of 1300 cm.
On the territory of the Ust-Maisky and Tomponsky regions, ice shifts are observed in the Eldikan-Okhotsky Perevoz section.
On the Amga River, ice drift passes in two sections: the lower edge of the main ice drift is observed in the area of the settlement. Somorsun (Mikhailovka) Amginsky district. The water level near the settlement Amga is 484 cm, with a critical 925 cm, there is a rare ice drift. The upper edge is 10 km below the Buyaga gauging station, the water levels are 365 cm, a rare ice drift.
The lower edge of the second section of the ice drift is observed in the area of the settlement. Chimnayi Tattinsky district, the water level is 952 cm, with a critical 1140 cm, the average ice drift. Upper edge - at n.p. Daya-Amga, Tattinsky district, water level below the rail, critical level 1200 cm.
On the Vilyuy River, along the entire length of the river, there is a rise in water levels, in some places there are rims, water on ice.
On the Lena, Aldan, Vilyui, Amga rivers, processes of ice cover destruction are observed. On the northern rivers: Kolyma, Indigirka and Yana - freezing.
Water levels on the rivers of the republic are below critical levels. There are no flooded settlements on the territory of the Republic of Sakha (Yakutia).
In order to control measures to ensure the accident-free passage of flood waters and monitor the hydrological situation on the rivers of the republic in the territory of the Lensky, Aldan, Amginsky and Churapchinsky regions, operational groups of the Main Directorate of the EMERCOM of Russia for the Republic of Sakha (Yakutia) are working.
The Main Directorate of the Ministry of Emergency Situations of Russia for the Republic of Sakha (Yakutia) has organized the duty of an interdepartmental working group to plan anti-flood measures and monitor the passage of spring floods and summer floods on the rivers of the republic.
The Main Directorate of the Ministry of Emergency Situations of Russia for the Republic of Sakha (Yakutia) appeals to residents of the Lensky, Amginsky, Churapchinsky, Tattinsky districts with a request to prepare for the approach of flood waters. To do this, it is necessary to raise all valuables in the attic in advance, bring livestock to pre-allocated elevated areas, collect documents, essentials, and monitor river levels and reports from local authorities.
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the water level at the nearest hydrological post, above which flooding and material damage begin. An effective way (means) to establish the critical water level and the risk of flooding is a hydrological forecast.
Meanings in other dictionaries
Critical value of the initiating explosive impulse
the minimum amount of energy released during an explosive explosion sufficient to ignite a particular combustible medium. As a rule, the minimum amount of energy is normalized in terms of the mass of the charge of a particular explosive that ignites a combustible medium. ...
Critical organ
in the case of irradiation, a tissue, organ or part of the body, the irradiation of which, under given conditions, can cause the greatest damage to the health of a given person or his offspring. For different critical organs, different values of the main dose limits are set. With a relatively uniform irradiation of the body, damage to health is considered according to the level of irradiation of the whole body. ...
Critical situation
in medicine - the state of the affected (patient), which is characterized by severe disorders of the vital systems of the body (primarily cardiovascular and respiratory), requiring emergency recovery (partial or complete replacement) with resuscitation. In a critical condition, a preagonal phase, agony and clinical death are distinguished. ...
Relations between the city authorities and Tver Vodokanal LLC, which leases water supply and sanitation infrastructure from the municipality, have moved into the stage of open conflict.
The situation around the water supply of the half-million city has already outgrown the municipal and regional levels. The President of Russia was informed that the regional center has problems in this area. The attention of Governor Igor Ruden and Vladimir Putin was drawn to the state of affairs in this area.
“Maybe our requirements are too high, but we do not see the proper efficiency that should be,” Rudenya explained the relationship with a private company.
Let's add that the name "Tver Vodokanal" did not appear in the conversation with the head of state, but there is no doubt that this utility company was in question. “Unfortunately, not to other regions, but to other countries,” the governor told the president about, which includes 400 million rubles that ended up offshore in the British Virgin Islands.
According to the reports of law enforcement agencies, the fact of the withdrawal of the assets of Tver Vodokanal LLC at the expense of funds collected for the implementation of the investment program has been established.
According to Igor Rudenya, today there are consultations with business representatives who deal with water supply issues. At the same time, against the backdrop of these negotiations, the Arbitration Court of the Tver Region is located, which the city administration filed two days after the meeting between the governor and the president. The city is trying through the courts to terminate the contract with the company owned by the Alfa Group consortium, concluded ten years ago. The main claim against the tenant is a poor quality service to the population, including in terms of the quality of the water itself, as well as certain problems with the implementation of the investment program.
We add that representatives of Tver Vodokanal name the key claims of the city authorities and are ready for a lawsuit.
At the same time, Igor Rudenya is sure that strict control by the authorities is necessary in the housing and communal services sector. This is proved by the recognized positive experience of the Tver Generation heat supply company, which, after the disastrous heating season of 2015-2016, came under the control of the executive branch.
According to the co-chairman of the regional headquarters of the ONF, Pavel Yakovlev, the main message that was given at the meeting between Putin and Rudenya indicates that the utility industry should not be in the hands of unscrupulous tenants or concessionaires. “I fully support this position. The All-Russian Popular Front in the Tver region also went to the federal level with this problem. We voiced it at an expert meeting at the Central Headquarters of the ONF in Moscow in the presence of federal ministries and the prosecutor's office," Yakovlev said.
Experts believe that two scenarios for resolving the crisis are possible.
The option of the transition of Tver Vodokanal LLC from leasing urban infrastructure to concluding a concession agreement with the municipality will obviously suit business structures. Another scenario is that the management of the water supply and sanitation sector is transferred to a municipal enterprise, which is fully controlled by the authorities.
Note that similar processes are taking place in other regions. For example, the Novosibirsk authorities are not ready to consider concluding a concession agreement for Gorvodokanal, citing a likely increase in tariffs. Meanwhile, the governor of the Ulyanovsk region, Sergei Morozov, told Kommersant: “The practice of concessions operating in Russia shows that investors do not always upgrade facilities. In our region, there are cases when the concessionaire left the game or provided insufficient quality services to the population, then the municipality had to take everything under control.”
Tver has its own negative experience of concessions. In particular, the project for the reconstruction of Victory Park. However, the scope of that agreement is incomparable with the possible option of including the key enterprise of the communal structure of the half-million city in the concession agreement.
