CN109146140A - A kind of Urban Flood Waterlogging prediction technique - Google Patents
A kind of Urban Flood Waterlogging prediction technique Download PDFInfo
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- CN109146140A CN109146140A CN201810824811.1A CN201810824811A CN109146140A CN 109146140 A CN109146140 A CN 109146140A CN 201810824811 A CN201810824811 A CN 201810824811A CN 109146140 A CN109146140 A CN 109146140A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 103
- 238000004364 calculation method Methods 0.000 claims description 7
- 238000000342 Monte Carlo simulation Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 230000002123 temporal effect Effects 0.000 claims description 3
- 238000007726 management method Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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Abstract
The invention discloses a kind of Urban Flood Waterlogging prediction techniques, comprising: step 1 carries out charge for remittance Division to city based on geographic information data；Step 2, the water capacity for calculating water catchment area；Step 3 is based on weather forecast, calculates the water accumulating volume of water catchment area following a period of time；Step 4, when the water accumulating volume of water catchment area be greater than alarm threshold when, issue flood warning.The water accumulating volume of water catchment area following a period of time can be calculated by weather forecast, and the early warning to Urban Flood Waterlogging is realized by alarm threshold, and city management personnel is facilitated to formulate scheme of taking precautions against natural calamities accordingly.The present invention can be used in Urban Flood Waterlogging management.
Description
Technical field
The present invention relates to city management technical field, in particular to a kind of Urban Flood Waterlogging prediction technique.
Background technique
Flood damage is always the natural calamity for perplexing human social development, with the propulsion of urbanization, the flood in city
Diaster prevention and control becomes the project of city manager's growing interest.The management of flood at present generally by detection river,
Lake, inspection shaft water level determine the means of Flood prevention disaster.But this method has certain hysteresis quality, city pipe
Reason personnel are difficult to adjust control strategy in time, so that city is easy to happen flood, therefore, how to predict and alert city flood
Damage caused by waterlogging evil, is the problem of city management personnel extremely pay close attention to.
Summary of the invention
The object of the present invention is to provide a kind of predictable and alarm Urban Flood Waterlogging methods.
The solution that the present invention solves its technical problem is: a kind of Urban Flood Waterlogging prediction technique, comprising:
Step 1 carries out charge for remittance Division to city based on geographic information data；
Step 2, the water capacity for calculating water catchment area；
Step 3 is based on weather forecast, calculates the water accumulating volume of water catchment area following a period of time；
Step 4, when the water accumulating volume of water catchment area be greater than alarm threshold when, issue flood warning.
Further, in step 2, the calculation method of the water capacity of water catchment area includes:
Water catchment area is divided into several ponding regions by step 2.1；
The basic water level of step 2.2, periodic measurement ponding region；
Step 2.3, the region area that ponding region is obtained based on geographic information data；
Step 2.4, the warning line for setting out ponding region in advance based on urban planning；
Step 2.5 passes through calculation formula: (lt-l0) * S=W obtains the water capacity of ponding region；Wherein, lt is ponding
The warning line in region, l0 are the basic water level of ponding region, and S is the region area of ponding region, and S is the water capacity of ponding region
Amount；
Step 2.6 obtains the water capacity of water catchment area according to the water capacity of ponding region.
Further, in step 3, it is based on weather forecast, calculates the sub-step of the water accumulating volume of water catchment area following a period of time
Include:
Step 3.1 is based on weather forecast, and the spatial and temporal distributions of rainfall in following a period of time are predicted using random theory；
Step 3.2, calculating drop into the rainfall of water catchment area within following a period of time；
Step 3.4, the water flow for obtaining outflow water catchment area；
Rainfall is subtracted water flow and obtains the water accumulating volume of water catchment area by step 3.5.
Further, the random theory includes Monte Carlo method or point collocation.
The beneficial effects of the present invention are: the water accumulating volume of water catchment area following a period of time can be calculated by weather forecast, and
The early warning to Urban Flood Waterlogging is realized by alarm threshold, and city management personnel is facilitated to formulate scheme of taking precautions against natural calamities accordingly.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described.Obviously, described attached drawing is a part of the embodiments of the present invention, rather than is all implemented
Example, those skilled in the art without creative efforts, can also be obtained according to these attached drawings other designs
Scheme and attached drawing.
Fig. 1 is the step flow chart of the method for the present invention.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to design of the invention, specific structure and generation clear
Chu is fully described by, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair
Bright a part of the embodiment, rather than whole embodiments, based on the embodiment of the present invention, those skilled in the art are not being paid
Other embodiments obtained, belong to the scope of protection of the invention under the premise of creative work.In addition, be previously mentioned in text
All connection/connection relationships not singly refer to that component directly connects, and referring to can be added deduct according to specific implementation situation by adding
Few couple auxiliary, to form more preferably coupling structure.Each technical characteristic in the invention, in not conflicting conflict
Under the premise of can be with combination of interactions.
Embodiment 1, with reference to Fig. 1, a kind of Urban Flood Waterlogging prediction technique, comprising:
Step 1 carries out charge for remittance Division to city based on geographic information data；
Step 2, the water capacity for calculating water catchment area；
Step 3 is based on weather forecast, calculates the water accumulating volume of water catchment area following a period of time；
Step 4, when the water accumulating volume of water catchment area be greater than alarm threshold when, issue flood warning.
As optimization, in step 2, the calculation method of the water capacity of water catchment area includes:
Water catchment area is divided into several ponding regions by step 2.1；
The basic water level of step 2.2, periodic measurement ponding region；
Step 2.3, the region area that ponding region is obtained based on geographic information data；
Step 2.4, the warning line for setting out ponding region in advance based on urban planning；
Step 2.5 passes through calculation formula: (lt-l0) * S=W obtains the water capacity of ponding region；Wherein, lt is ponding
The warning line in region, l0 are the basic water level of ponding region, and S is the region area of ponding region, and S is the water capacity of ponding region
Amount；
Step 2.6 obtains the water capacity of water catchment area according to the water capacity of ponding region.
As optimization, in step 3, it is based on weather forecast, calculates the sub-step of the water accumulating volume of water catchment area following a period of time
Suddenly include:
Step 3.1 is based on weather forecast, and the spatial and temporal distributions of rainfall in following a period of time are predicted using random theory；
Wherein, the random theory includes Monte Carlo method or point collocation.
Step 3.2, calculating drop into the rainfall of water catchment area within following a period of time；
Step 3.4, the water flow for obtaining outflow water catchment area；
Rainfall is subtracted water flow and obtains the water accumulating volume of water catchment area by step 3.5.
City is divided into several water catchment areas, city can intuitively be known by doing so by geographic information data by the present invention
City's water flows through region.Meanwhile the water capacity of water catchment area is obtained by statistics and calculation, by the water capacity of obtained water catchment area
Amount, so that it may know the water capacity in entire city, and the water capacity based on entire city, according to the requirement of urban planning, in advance
Set alarm threshold.When rainfall comes interim, be based on weather forecast, it is 1 hour following using random theory prediction, 2 hours, 6 hours,
12 hours and 24 hours probable maximum precipitation amounts, and calculate separately 1 hour, 2 hours, 6 hours, 12 hours and 24 hours following
Corresponding return period P, construct rainfall in 1 hour, 2 hours, 6 hours, 12 hours and 24 hours following respectively according to return period P
Journey line model；Charge for remittance will be dropped within 1 hour, 2 hours, 6 hours, 12 hours and 24 hours according to rainfall line model calculating future
The rainfall in area.Meanwhile the water flow of outflow water catchment area can be obtained by the way that the water ga(u)ge of the water outlet of water catchment area is arranged in
Amount, thus, water flow, which is subtracted, using rainfall obtains the water accumulating volume of water catchment area.When the water accumulating volume of water catchment area is greater than alarm threshold
When, the danger that city occurs flood has been turned out, city management personnel's system can have been facilitated by issuing flood warning
Fixed scheme of taking precautions against natural calamities accordingly.
The invention can calculate the water accumulating volume of water catchment area following a period of time by weather forecast, and pass through Police sports
Value realizes the early warning to Urban Flood Waterlogging, and city management personnel is facilitated to formulate scheme of taking precautions against natural calamities accordingly.
Better embodiment of the invention is illustrated above, but the invention is not limited to the implementation
Example, those skilled in the art can also make various equivalent modifications on the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.
Claims (4)
1. a kind of Urban Flood Waterlogging prediction technique characterized by comprising
Step 1 carries out charge for remittance Division to city based on geographic information data；
Step 2, the water capacity for calculating water catchment area；
Step 3 is based on weather forecast, calculates the water accumulating volume of water catchment area following a period of time；
Step 4, when the water accumulating volume of water catchment area be greater than alarm threshold when, issue flood warning.
2. a kind of Urban Flood Waterlogging prediction technique according to claim 1, which is characterized in that in step 2, water catchment area
The calculation method of water capacity include:
Water catchment area is divided into several ponding regions by step 2.1；
The basic water level of step 2.2, periodic measurement ponding region；
Step 2.3, the region area that ponding region is obtained based on geographic information data；
Step 2.4, the warning line for setting out ponding region in advance based on urban planning；
Step 2.5 passes through calculation formula: (lt-l0) * S=W obtains the water capacity of ponding region；Wherein, lt is ponding region
Warning line, l0 be ponding region basic water level, S be ponding region region area, S be ponding region water capacity；
Step 2.6 obtains the water capacity of water catchment area according to the water capacity of ponding region.
3. a kind of Urban Flood Waterlogging prediction technique according to claim 2, which is characterized in that in step 3, be based on day
Gas forecast, the sub-step for calculating the water accumulating volume of water catchment area following a period of time include:
Step 3.1 is based on weather forecast, and the spatial and temporal distributions of rainfall in following a period of time are predicted using random theory；
Step 3.2, calculating drop into the rainfall of water catchment area within following a period of time；
Step 3.4, the water flow for obtaining outflow water catchment area；
Rainfall is subtracted water flow and obtains the water accumulating volume of water catchment area by step 3.5.
4. a kind of Urban Flood Waterlogging prediction technique according to claim 3, which is characterized in that the random theory includes
Monte Carlo method or point collocation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810824811.1A CN109146140A (en) | 2018-07-25 | 2018-07-25 | A kind of Urban Flood Waterlogging prediction technique |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810824811.1A CN109146140A (en) | 2018-07-25 | 2018-07-25 | A kind of Urban Flood Waterlogging prediction technique |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110399638A (en) * | 2019-06-15 | 2019-11-01 | 湖南闲暇科技有限公司 | A method of flood and overflow time of origin are calculated according to meteorological data |
| CN112382091A (en) * | 2020-11-11 | 2021-02-19 | 北京世纪高通科技有限公司 | Road water accumulation early warning method and device |
| CN115293469A (en) * | 2022-10-10 | 2022-11-04 | 山脉科技股份有限公司 | Urban flood control and drainage risk prediction method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103116695A (en) * | 2013-01-16 | 2013-05-22 | 吴立新 | Urban area water logging flood processing simulation method based on CD-TIN |
| CN103559775A (en) * | 2013-11-12 | 2014-02-05 | 武汉大学 | Urban flood disaster early warning system and method |
| CN105067072A (en) * | 2015-07-27 | 2015-11-18 | 湖南大麓管道工程有限公司 | Water-level rising early-warning system and method |
-
2018
- 2018-07-25 CN CN201810824811.1A patent/CN109146140A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103116695A (en) * | 2013-01-16 | 2013-05-22 | 吴立新 | Urban area water logging flood processing simulation method based on CD-TIN |
| CN103559775A (en) * | 2013-11-12 | 2014-02-05 | 武汉大学 | Urban flood disaster early warning system and method |
| CN105067072A (en) * | 2015-07-27 | 2015-11-18 | 湖南大麓管道工程有限公司 | Water-level rising early-warning system and method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110399638A (en) * | 2019-06-15 | 2019-11-01 | 湖南闲暇科技有限公司 | A method of flood and overflow time of origin are calculated according to meteorological data |
| CN112382091A (en) * | 2020-11-11 | 2021-02-19 | 北京世纪高通科技有限公司 | Road water accumulation early warning method and device |
| CN115293469A (en) * | 2022-10-10 | 2022-11-04 | 山脉科技股份有限公司 | Urban flood control and drainage risk prediction method |
| CN115293469B (en) * | 2022-10-10 | 2022-12-27 | 山脉科技股份有限公司 | Urban flood control and drainage risk prediction method |
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