CN106383373A - Isoline and isosurface drawing and early warning method based on practical measurement and forecasted rainfall quantity - Google Patents
Isoline and isosurface drawing and early warning method based on practical measurement and forecasted rainfall quantity Download PDFInfo
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- CN106383373A CN106383373A CN201611133797.8A CN201611133797A CN106383373A CN 106383373 A CN106383373 A CN 106383373A CN 201611133797 A CN201611133797 A CN 201611133797A CN 106383373 A CN106383373 A CN 106383373A
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- G01W—METEOROLOGY
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Abstract
The invention provides an isoline and isosurface drawing and early warning method based on practical measurement and forecasted rainfall quantity. Meanwhile, the forecasted rainfall isoline and isosurface drawing can be performed by considering the existing practically measured rainfall quantity and the future forecasted rainfall quantity; the forecasted rainfall quantity and the practically measured rainfall quantity are obtained; data of the forecasted rainfall quantity and the practically measured rainfall quantity is processed; the rainfall isoline and isosurface are drawn according to the treated forecasted rainfall quantity; therefore regions to be focally concerned in future can be directly known through the treated forecasted rainfall quantity isoline and isosurface; the emergency preparation time can be greatly brought forward. Further, early warning can be given out in advance on the basis of the comparison of the treated forecasted rainfall quantity with the measured station early warning threshold value, so that relevant responsible persons can take note of the regions possibly generating the dangerous conditions; the dealing measures can be taken in advance.
Description
Technical field
The invention belongs to weather forecast and early warning field are and in particular to a kind of equivalence based on actual measurement and forecast rainfall
Line, Isosurface construction, method for early warning.
Background technology
The mode that existing flood control informationization related system is shown with regard to rainfall mainly has：1st, with the shape of text or form
Formula shows rainfall.2nd, show rainfall in the form of rainfall block diagram.3rd, show fall in the form of precipitation isohyetal line, contour surface
Rainfall（It is mainly based upon actual measurement rainfall or forecast rainfall is drawn, do not consider actual measurement rainfall and forecast fall
Rainfall）.
Mainly had based on the method for early warning of rainfall：1st, actual measurement rainfall and threshold value of warning are contrasted, and reach threshold value and enter
Row early warning.2nd, forecast rainfall and threshold value of warning are contrasted, and reach threshold value and carry out early warning.3rd, consider actual measurement rainfall
With forecast rainfall, contrasted with early warning value, reach threshold value and carry out early warning.
The third alarm mode referenced patent document：201610132726.X a kind of calculated based on the quantitative rainfall forecast of fusion
The mountain torrents early warning platform of method and method for early warning.
In current flood control informationization related system, mostly precipitation isohyetal line, the drafting of contour surface are to be carried out based on actual measurement rainfall
Draw, work of flood prevention personnel pass through contour, contour surface can only understand current zones of different rainfall distribution situation, for anti-
Prepare the emergent time relatively short for flood work arrangements.For this kind of situation, also there is part system using forecast rainfall
Carry out the drafting of contour, contour surface, work of flood prevention personnel can be made to recognize the impact that following rainfall is likely to result in advance, be
Tackle possible dangerous situation and win the time.But work of flood prevention is a dynamic process not to reach thereby increases and it is possible to there is rainfall
Threshold value of warning, forecast rainfall do not reach threshold value of warning yet, but rainfall adds the early warning threshold that forecast rainfall has reached the corresponding period
The situation of value；Consider further that the problem of current rainfall forecast technology accuracy rate, consider rainfall and forecast rainfall and carry out
Early warning practicality is higher.The present invention is exactly to provide one kind to consider rainfall and forecast rainfall, by contour, contour surface
Form show and carry out the method and system of early warning, leading time to dangerous situation is improved with intuitive way, enables leader
Enough notice potential danger earlier.
Content of the invention
It is an object of the invention to provide a kind of contour based on actual measurement and forecasting rainfall, Isosurface construction, the pre- police
Method, considers rainfall and forecast rainfall drawing isoline, contour surface and then carry out contrast with threshold value of warning and carry out early warning.
For achieving the above object, the present invention employs the following technical solutions：A kind of equivalence based on actual measurement and forecast rainfall
Line, Isosurface construction, method for early warning are it is characterised in that comprise the following steps：Step S1：Obtain predictions for future rainfall product data
With current actual measurement rainfall product data；Step S2：The predictions for future rainfall obtaining in step S1 and actual measurement rainfall product data are pressed
Processed according to the rule setting, the data after process referred to as forecasts rainfall, exported contour, Isosurface construction module and pre-
Alert determination module；Step S3：Forecast rainfall data is carried out with the drafting of precipitation isohyetal line, contour surface；Each period is provided with
Threshold value of warning, forecast rainfall is contrasted with the threshold value of warning of corresponding period, reaches or beyond during early warning, needs will be entered
The survey station of row early warning, area, corresponding rainfall and the corresponding period information of this rainfall pass to early warning release module and enter step
Rapid S4；Step S4：Carry out early warning issue.
Further, forecast in step S2 that the computational methods of rainfall comprise the following steps：Step S21：Obtain different periods
Forecast rainfall and actual measurement rainfall；Step S22：If the period collection of forecast rainfall is combined into following A hour, survey rainfall
Period collection be combined into over B hour, early warning period collection is combined into C hour, a ∈ A, b ∈ B, c ∈ C, c ' ∈ C；A, b, c are nature
Number；Step S23：If a=c and（a+b）C, then a hour forecast rainfall do not process directly as c hour forecast rainfall, early warning
When compare with c hour threshold value of warning, meet or exceed threshold value of warning issue early warning information；If a=c, a+b=c ', point two kinds of feelings
Condition：One is that a hour forecast rainfall does not process directly as c hour forecast rainfall, opposes with c hour threshold value of warning during early warning
Ratio meets or exceeds threshold value of warning and issues early warning information；One is that a hour forecast rainfall adds b hour actual measurement rainfall as c '
Hour forecast rainfall, is compared with c ' hour threshold value of warning during early warning, meets or exceeds threshold value of warning and issues early warning information；Work as a
When C, a+b=c, a hour forecast rainfall adds b hour actual measurement rainfall and forecasts rainfall as c hour, with c hour early warning during early warning
Threshold value compares, and meets or exceeds threshold value of warning and issues early warning information.
Further, the forecast rainfall after the computational methods in step S23 calculate, if following a hour forecast rainfall
Survey rainfall sum with past b hour, then carry out special identifier in systems, to show and directly to make predictions for future rainfall
For forecasting the difference of this situation of rainfall.
Further, in step S4, early warning is issued by early warning note, wireless alarming broadcast, mailbox or is faxed to early warning survey
Stand or region related personnel sends early warning information.
Further, the early warning in step S4 is issued and is passed through early warning template, automatically generates corresponding early warning content, and then carries out
The issue of early warning；Early warning template is by system according to presetting automatic running or arranged by artificial.
In an embodiment of the present invention, early warning content carries out early warning issue or through phase by system automatically according to the rule of setting
Pass personnel examination ＆ verification is issued after changing if necessary.
The present invention processing simple in rule and it can be readily appreciated that being carried out by the form of contour, contour surface to rainfall data
Show vivid, directly perceived, in combination with early warning issuing function, enable work of flood prevention personnel to perceive possible danger in advance, enter
And prepare counter-measure in advance, on reducing, disaster impact is significant.
Brief description
Fig. 1 is the main flow schematic diagram of the present invention.
Specific embodiment
With specific embodiment, explanation is further explained to the present invention below in conjunction with the accompanying drawings.
A kind of contour based on actual measurement and forecasting rainfall, Isosurface construction, method for early warning, it comprises the following steps：
Step S1：Obtain predictions for future rainfall product data and current actual measurement rainfall product data；Step S2：To the future obtaining in step S1
Forecast rainfall and actual measurement rainfall product data are processed according to the rule setting, and the data after process referred to as forecasts rainfall, defeated
Go out to contour, Isosurface construction module and early warning determination module；Step S3：To forecast rainfall data carry out precipitation isohyetal line,
The drafting of contour surface；Each period is provided with threshold value of warning, and forecast rainfall is contrasted with the threshold value of warning of corresponding period,
Reach or beyond during early warning, by survey station, area, corresponding rainfall and this rainfall corresponding period letter needing to carry out early warning
Breath passes to early warning release module and enters step S4；Step S4：Carry out early warning issue.
Forecast in step S2 that the computational methods of rainfall comprise the following steps：
Step S21：Obtain forecast rainfall and the actual measurement rainfall of different periods；
Step S22：If the period collection of forecast rainfall is combined into following A hour, the period collection B of being combined into over of actual measurement rainfall is little
When, early warning period collection is combined into C hour, a ∈ A, b ∈ B, c ∈ C, c ' ∈ C；A, b, c are natural number.
Step S23：If a=c and（a+b）C, then a hour forecast rainfall do not process directly as c hour forecast rain
Amount, is compared with c hour threshold value of warning during early warning, meets or exceeds threshold value of warning and issues early warning information；If a=c, a+b=c ', point
Two kinds of situations, one is that a hour forecast rainfall does not process directly as c hour forecast rainfall, with c hour early warning threshold during early warning
Value compares, and meets or exceeds threshold value of warning and issues early warning information, one is that a hour forecast rainfall adds b hour actual measurement rainfall
Forecast rainfall as c ' hour, compare with c ' hour threshold value of warning during early warning, meet or exceed threshold value of warning and issue early warning letter
Breath；As a C, during a+b=c, a hour forecast rainfall adds b hour actual measurement rainfall and forecasts rainfall as c hour, during early warning and c
Hour threshold value of warning compares, and meets or exceeds threshold value of warning and issues early warning information.
C after calculating in step S23（Or c ', in this paragragh, following description is using c as general designation）Hour forecast
Rainfall, if following a hour forecast rainfall and the rainfall sum of b hour actual measurement in the past, then carries out special identifier in systems,
To show the difference with the forecast this situation of rainfall that directly looks to the future, such as represent c hour warning level, leading time with " c (a) "
A hour, c-a=b hour of having rained；Or " c (b) " represents that c hour warning level, b hour of having rained, leading time c-b=a are little
When；Or " c-a " represents c hour warning level, leading time a hour, c-a=b hour of having rained;It can also be other mark side
Formula, the present invention does not limit；If being identified with " c ", represent predictions for future rainfall directly as forecast rainfall.
In specific embodiment：Rain detection with radar is mainly short forecasting, based on this suppose to obtain following 1 hour, 2 hours, 3 little
When rainfall forecast data.Rainfall early warning considers 1 hour, 3 hours, 6 hours, 12 hours 4 ranks." forecast rainfall " is：1 hour
Forecast data does not process, and directly as 1 hour " forecast rainfall ", is contrasted with 1 hour threshold value of warning；Pre- count off in 2 hours
According to the actual rainfall product data plus past 1 hour, as 3 hours " forecast rainfall ", contrast with 3 hours threshold value of warning, can mark
It is designated as " 3（2）" or " 3-2 " etc.；3 hours forecast data, are divided into two kinds of situations：One kind is not deal with, little directly as 3
When " forecast rainfall ", contrast with 3 hours threshold value of warning, another kind is that 3 hours forecast data are added the reality of 3 hours in the past
Rainfall product data, as 6 hours forecast rainfall, can be labeled as " 6（3）" or " 6-3 " etc..
This example does not limit to rainfall forecast period, early warning period, is only used as one of embodiment, period root
Can adjust according to the development of forecasting technique or the needs of real work.
Further, for by forecasting rainfall and actual measurement rainfall sum in the past as forecast rainfall in step S4
Situation is identified, no matter being the drafting of contour, contour surface, or generate early warning information content, and by early warning note,
Wireless alarming broadcast, mailbox or fax and send early warning information to early warning survey station or region related personnel.
Further, the early warning in step S4 is issued according to early warning template, automatically generates corresponding early warning content, and then carries out
The issue of early warning；Early warning template is by system according to presetting automatic running or arranged by artificial.Early warning template can be in system
In preset, preferably, user can carry out to early warning template increasing, the operation such as deletes, changes.
Early warning content by system automatically according to setting rule carry out early warning issue or through related personnel examination ＆ verification repair if necessary
Issued after changing.
Early warning is issued and is included early warning template-setup, early warning information editor, alarm mode selection, sending object selection function,
Specifically system still can manually be arranged according to presetting automatic running.Early warning release module obtains early warning determination module
Judge to need to send the information of early warning, corresponding early warning content is automatically generated according to default early warning template, also can human-edited's early warning
Content, and then carry out the issue of early warning.Early warning is the published method present invention be not limited, and can be the rule automatically according to setting for the system
Then carry out early warning issue it is also possible to provide early warning audit function related personnel examination ＆ verification to be issued after changing if necessary, or protect
Two kinds of mechanism are stayed to supply user to select.Additionally, the means present invention is issued in early warning not also being limited, optional include following a kind of or
Outside multiple or example set forth below：The rainfall contour surface reaching the region of threshold value of warning is entered with special mode
Row represents, such as flicker, sound, or the survey station of association early warning region is shown on contour surface（Both can be survey station figure
The displaying on map such as mark, title pushes early warning survey station information it is also possible to be click on prewarning area, or stackable all surveys
Information of standing but need the survey station of early warning special to show such as by the mode such as flicker, different colours or sound）；By pre-
Alert note, wireless alarming broadcast, mailbox, fax etc. send early warning information to early warning survey station or region related personnel.The present invention
There is provided and issue passage, sending object setting function, equally can preset automatic issue, be configured when also can issue every time,
The operation such as also can carry out issuing passage, the newly-increased, modification of sending object, delete.
It is more than presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, produced function is made
With without departing from technical solution of the present invention scope when, belong to protection scope of the present invention.
Claims (6)
1. a kind of based on actual measurement and the forecast contour of rainfall, Isosurface construction, method for early warning it is characterised in that include with
Lower step：
Step S1：Obtain predictions for future rainfall product data and current actual measurement rainfall product data；
Step S2：At the predictions for future rainfall obtaining in the step S1 and actual measurement rainfall product data rule according to setting
Reason, the data after process is referred to as forecast rainfall, is exported contour, Isosurface construction module and early warning determination module；
Step S3：Forecast rainfall data is carried out with the drafting of precipitation isohyetal line, contour surface；Each period is provided with early warning threshold
Value, forecast rainfall is contrasted with the threshold value of warning of corresponding period, when reaching or exceeding early warning, will be needing to carry out early warning
Survey station, area, corresponding rainfall and the corresponding period information of this rainfall pass to early warning release module and enter step S4；
Step S4：Carry out early warning issue.
2. the contour based on actual measurement and forecasting rainfall according to claim 1, Isosurface construction, method for early warning, its
It is characterised by：Forecast in step S2 that the computational methods of rainfall comprise the following steps：
Step S21：Obtain forecast rainfall, the actual measurement rainfall of different periods；
Step S22：If the period collection of forecast rainfall is combined into following A hour, the period collection B of being combined into over of actual measurement rainfall is little
When, early warning period collection is combined into C hour, a ∈ A, b ∈ B, c ∈ C, c ' ∈ C；A, b, c are natural number；
Step S23：If a=c and（a+b）C, then a hour forecast rainfall do not process directly as c hour forecast rainfall, in advance
Compare with c hour threshold value of warning when alert, meet or exceed threshold value of warning and issue early warning information；If a=c, a+b=c ', divide two kinds
Situation：One is that a hour forecast rainfall does not process directly as c hour forecast rainfall, makees with c hour threshold value of warning during early warning
Contrast, meets or exceeds threshold value of warning and issues early warning information；One is that a hour forecast rainfall adds the actual measurement rainfall conduct of b hour
C ' hour forecasts rainfall, compares with c ' hour threshold value of warning during early warning, meets or exceeds threshold value of warning and issues early warning information；When
A C, during a+b=c, a hour forecast rainfall adds b hour actual measurement rainfall and forecasts rainfall as c hour, pre- with c hour during early warning
Alert threshold value compares, and meets or exceeds threshold value of warning and issues early warning information.
3. the contour based on actual measurement and forecasting rainfall according to claim 2, Isosurface construction, method for early warning, its
It is characterised by：The forecast rainfall after computational methods calculating in step S23, if following a hour forecast rainfall is little with b in the past
When survey rainfall sum, then carry out special identifier in systems, using show with directly by predictions for future rainfall as forecast rain
Measure the difference of this situation.
4. the contour based on actual measurement and forecasting rainfall according to claim 1, Isosurface construction, method for early warning, its
It is characterised by：In step S4, early warning is issued by early warning note, wireless alarming broadcast, mailbox or is faxed to early warning survey station or area
Domain related personnel sends early warning information.
5. the contour based on actual measurement and forecasting rainfall according to claim 1, Isosurface construction, method for early warning, its
It is characterised by：Early warning in step S4 is issued and is passed through early warning template, automatically generates corresponding early warning content, and then carries out sending out of early warning
Cloth；Early warning template is by system according to presetting automatic running or arranged by artificial.
6. the contour based on actual measurement and forecasting rainfall according to claim 5, Isosurface construction, method for early warning, its
It is characterised by：Early warning content carries out early warning issue or laggard through related personnel's examination ＆ verification modification by system automatically according to the rule of setting
Row is issued.
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| CN110111538A (en) * | 2019-04-30 | 2019-08-09 | 中国电建集团北京勘测设计研究院有限公司 | A kind of mountain flood dynamic monitoring prewarning analysis system |
| CN114093133A (en) * | 2021-11-24 | 2022-02-25 | 合肥工业大学 | Regional geological disaster weather forecast early warning method |
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