CN106291766B - A kind of forecasting procedure of In Chengdu fair weather - Google Patents
A kind of forecasting procedure of In Chengdu fair weather Download PDFInfo
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- CN106291766B CN106291766B CN201610764790.XA CN201610764790A CN106291766B CN 106291766 B CN106291766 B CN 106291766B CN 201610764790 A CN201610764790 A CN 201610764790A CN 106291766 B CN106291766 B CN 106291766B
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Abstract
The invention discloses a kind of forecasting procedures of In Chengdu fair weather, multiple numerical forecasting products based on wind field monitoring lattice point net feedback are predicted, if multiple numerical forecasting products are consistency gas flow optimized form preferably by north, a period of time in future fine and proclamation form of prediction of inner region weather phenomenon can be predicted；The wind field monitoring lattice point net is in the distributed in three dimensions for covering multiple monitoring stations, profile is corresponding with the profile in Chengdu region, and wind field monitors lattice point net monitoring station longitude and latitude and the monitoring lattice point for numerical forecasting product at 500Hpa isobaris surfaces or 700Hpa isobaris surface space intersections；The numerical forecasting product is wind direction, wind speed.Emphasis of the present invention solves the prediction of In Chengdu, fine meteorology, does not need complicated analysis, the gas flow optimized form by north of consistency only whether is met by wind field condition, you can predicted, prediction technique is simple and practicable.
Description
Technical field
The present invention relates to the weather prediction techniques field of zonule, in particular for the In Chengdu positioned at the Sichuan Basin,
Specifically, it is a kind of forecasting procedure of In Chengdu fair weather.
Background technology
Conventional method is to carry out weather forecast using height field, air pressure field weather system, Sichuan Basin Yin Qite
Different concave landforms and domestic numerous rivers and have the characteristics that steam is plentiful, but also the meteorology that weather forecast needs monitor
Element is numerous, monitoring system complex, forecasts that difficulty is big.Currently, the weather monitoring station of Sichuan Basin setting is usually required to 11
Forecast height layer, more than 30 a meteorological elements are monitored to be acquired with data, and the workload of prediction is larger.
Invention content
It is fine for solving In Chengdu the purpose of the present invention is to provide a kind of forecasting procedure of In Chengdu fair weather
Fair-weather prediction can be analyzed based on the wind fields such as wind direction, wind speed numerical forecasting product and predict Chengdu in following a period of time
Whether area is fair weather, and prediction is simple, feasible.
The present invention is achieved through the following technical solutions：A kind of forecasting procedure of In Chengdu fair weather is supervised based on wind field
The multiple numerical forecasting products for surveying lattice point net feedback are predicted, if multiple numerical forecasting products are that consistency is preferably by north
Gas flow optimized form, then can be predicted that following a period of time inner region weather phenomenon is fine and proclamation form of prediction；The wind field monitors lattice
For point net in the distributed in three dimensions for covering multiple monitoring stations, the profile of overlay area is corresponding with the profile in Chengdu region, wind field prison
It surveys lattice point net and is horizontally disposed with 500Hpa monitor layers, in the horizontally disposed 700Hpa monitorings of 700Hpa isobaris surfaces in 500Hpa isobaris surfaces
Layer, and monitoring station longitude and latitude and the monitoring lattice for numerical forecasting product at 500Hpa isobaris surfaces or 700Hpa isobaris surface space intersections
Point；The numerical forecasting product is wind direction, wind speed.
Further, in order to better illustrate the utility model, consistency gas flow optimized form preferably by north has
Body refers to that the wind direction of adjacent multiple monitoring lattice points is direction by north and same monitoring station 500Hpa monitor layers, 700Hpa monitorings
Its wind direction angle of the corresponding two monitoring lattice point of layer is less than 45 °；The wind direction is direction by north i.e. wind direction and positive true north orientation
Angle is less than 90 °.
Further, in order to better illustrate the utility model, adjacent multiple monitoring lattice points specifically refer to adjacent to
Few corresponding monitoring lattice point in 5 monitoring stations.
Further, in order to better illustrate the utility model, the wind speed includes that 500Hpa monitor layers measure
The 700Hpa wind speed that 500Hpa wind speed, 700Hpa monitor layers measure, 500Hpa wind speed be not small not less than 12m/s and 700Hpa wind speed
In 4m/s, you can the weather phenomenon of forecast corresponding region following a period of time is cloudy or fine.
Further, in order to better illustrate the utility model, the wind field monitors the region and Chengdu of lattice point net covering
Region is consistent or 1-10km is expanded in the region of wind field monitoring lattice point net covering outward along the circle of city in Chengdu.
Compared with prior art, the present invention haing the following advantages and advantageous effect：
（1）All meteorological element numbers that the present invention monitors all weather stations in nearly 10 years Chengdu regional areas daily
According to being analyzed, it is found that the corresponding wind field form of the two isobaris surfaces of 500Hpa, 700Hpa most can reflect the Sichuan Basin especially
The gas system of In Chengdu, especially 700Hpa high dead levels wind field form can effectively analyze the small-sized weather system of In Chengdu
System, i.e., the key point that 500Hpa, 700Hpa high dead level wind field form are analyzed as In Chengdu weather system, compared with traditional analysis side
Method is more acurrate to the positioning of small-sized weather system analysis and prediction, data processing amount is small；
（2）Specific aim of the present invention is stronger, and emphasis solves the prediction of In Chengdu, fine meteorology, does not need complicated analysis,
Only whether meet the gas flow optimized form by north of consistency by wind field condition, you can predicted, prediction technique is simple and practicable.
Description of the drawings
Fig. 1 is wind field definition graph；
Wherein：The positive true north orientation schematic lines of 1-；2- wind direction bars；3- wind speed lines；4- monitors lattice point.
Specific implementation mode
The present invention is described in further detail with reference to embodiment, embodiments of the present invention are not limited thereto.
Embodiment 1：
A kind of forecasting procedure of In Chengdu fair weather, multiple numerical forecasts production based on wind field monitoring lattice point net feedback
Product are predicted, if multiple numerical forecasting products are consistency gas flow optimized form preferably by north, future one can be predicted
Time inner region weather phenomenon is fine and proclamation form of prediction for section；The wind field monitoring lattice point net is in the three-dimensional point for covering multiple monitoring stations
The profile of cloth, overlay area is corresponding with the profile in Chengdu region, and wind field monitoring lattice point net is set in 500Hpa isobaris surface levels
It sets 500Hpa monitor layers, be horizontally disposed with 700Hpa monitor layers in 700Hpa isobaris surfaces, and monitoring station longitude and latitude and 500Hpa are isobaric
It is the monitoring lattice point 4 of numerical forecasting product at face or 700Hpa isobaris surface space intersections；The numerical forecasting product is wind direction, wind
Speed.
Consistency gas flow optimized form preferably by north specifically refers to, and the wind direction of adjacent multiple monitoring lattice points 4 is
Direction by north and corresponding two monitorings lattice point 4 its wind direction angle of same monitoring station 500Hpa monitor layers, 700Hpa monitor layers is small
In 45 °；The wind direction is that direction by north i.e. wind direction and the angle of positive true north orientation are less than 90 °.
As shown in Figure 1, marking positive true north orientation with positive true north orientation schematic lines 1 at monitoring lattice point 4, the direction of wind direction bar 2 is
Come to, positive true north orientation schematic lines 1 and the angle α of wind direction bar 2 to be wind angle for wind, if | α | 90 ° of <, wind direction is by north
, and | α | the smaller then wind direction of value is by north.
The wind direction that a certain monitoring lattice point 4 is monitored in 500Hpa monitor layers is by north and wind angle is α 1, while in 700Hpa
The wind direction of monitor layer monitoring is by north and wind angle is α 2, then both there are wind direction angle β, and β=| α 1- α 2 |：If 45 ° of β <,
Then its consistency by north of the corresponding two monitoring lattice points 4 of monitoring station meets the requirements herein.
Adjacent multiple monitoring lattice points 4 specifically refer to the corresponding monitoring lattice point in adjacent at least five monitoring station 4.To near
Monitoring station carries out the comprehensive analysis of small area, is conducive to the contingency for avoiding single monitoring 4 data of lattice point, and using to not
Carry out the prediction of a period of time meteorological variation.
The wind speed includes the 700Hpa wind that 500Hpa monitor layers the 500Hpa wind speed, the 700Hpa monitor layers that measure measure
Speed, 500Hpa wind speed are not less than 4m/s not less than 12m/s and 700Hpa wind speed, you can forecast corresponding region following a period of time
Weather phenomenon is cloudy or fine.
As shown in Figure 1, the wind speed line 3 of 2 end of wind direction bar represents wind speed, wherein long wind speed line indicate wind speed be 4m/s, it is short
Wind speed line indicates that wind speed is 2m/s, and there is the summation that wind speed line 3 corresponds to wind speed in place to the wind speed of this monitoring lattice point 4 thus.For this
Invention, the more big then cloud amount of wind speed are fewer.
The region of the wind field monitoring lattice point net covering is consistent with the region in Chengdu or wind field monitors the covering of lattice point net
1-10km is expanded in region outward along the circle of city in Chengdu.
Although the present invention is directed to In Chengdu, the weather forecast product of In Chengdu neighboring area is monitored, is united
It counts, summarize, analyze, the prediction that whether In Chengdu is fine in following a period of time be more advantageous to, it is possibility to have effect avoids a certain
Monitor the contingency of 4 corresponding data of lattice point.It is examined according to multiple influence factor synthesis such as In Chengdu landforms, meteorological situation of change
Consider, monitoring region extends outwardly 1-10km.
The present embodiment emphasis solves the prediction of In Chengdu, fine meteorology, does not need complicated analysis, only passes through wind field item
Whether part meets the gas flow optimized form by north of consistency, you can is predicted, prediction technique is simple and practicable.
Monitoring station described in the present embodiment can be existing monitoring station, can also be Chengdu described in cooperation the present embodiment
It is that the forecasting procedure of regional fair weather is newly established, be exclusively used in monitoring 500Hpa monitor layers, 700Hpa monitor layers correspond to wind field
Monitoring point.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is every according to
According to the technical spirit of the present invention to any simple modification, equivalent variations made by above example, the protection of the present invention is each fallen within
Within the scope of.
Claims (4)
1. a kind of forecasting procedure of In Chengdu fair weather, which is characterized in that based on the multiple of wind field monitoring lattice point net feedback
Numerical forecasting product is predicted, can if multiple numerical forecasting products are consistency gas flow optimized form preferably by north
The following a period of time inner region weather phenomenon of prediction is fine and proclamation form of prediction；The wind field monitoring lattice point net is in the multiple monitorings of covering
The profile of the distributed in three dimensions stood, overlay area is corresponding with the profile in Chengdu region, and wind field monitors lattice point net in 500Hpa etc.
Pressure surface is horizontally disposed with 500Hpa monitor layers, is horizontally disposed with 700Hpa monitor layers in 700Hpa isobaris surfaces, and monitoring station longitude and latitude with
It is the monitoring lattice point of numerical forecasting product at 500Hpa isobaris surfaces or 700Hpa isobaris surface space intersections（4）；The numerical forecast
Product is wind direction or wind speed；
Consistency gas flow optimized form preferably by north specifically refers to, adjacent multiple monitoring lattice points（4）Wind direction be inclined
The north to and same monitoring station 500Hpa monitor layers, 700Hpa monitor layers it is corresponding two monitoring lattice point（4）Its wind direction angle is small
In 45 °；The wind direction is that direction by north i.e. wind direction and the angle of positive true north orientation are less than 90 °.
2. a kind of forecasting procedure of In Chengdu fair weather according to claim 1, which is characterized in that described adjacent more
A monitoring lattice point（4）Specifically refer to the corresponding monitoring lattice point in adjacent at least five monitoring station（4）.
3. a kind of forecasting procedure of In Chengdu fair weather according to claim 1, which is characterized in that the wind speed packet
The 700Hpa wind speed that 500Hpa wind speed, the 700Hpa monitor layers that 500Hpa monitor layers measure measure is included, 500Hpa wind speed is not less than
12m/s and 700Hpa wind speed is not less than 4m/s, you can the weather phenomenon of forecast corresponding region following a period of time is cloudy or fine.
4. according to a kind of forecasting procedure of In Chengdu fair weather of claim 1-3 any one of them, which is characterized in that institute
State wind field monitoring lattice point net covering region is consistent with the region in Chengdu or the region of wind field monitoring lattice point net covering is along Chengdu
Circle of city expand 1-10km outward.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610764790.XA CN106291766B (en) | 2016-08-31 | 2016-08-31 | A kind of forecasting procedure of In Chengdu fair weather |
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| CN201610764790.XA CN106291766B (en) | 2016-08-31 | 2016-08-31 | A kind of forecasting procedure of In Chengdu fair weather |
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| AU2009351338A1 (en) * | 2009-08-21 | 2012-03-08 | Bluescout Technologies, Inc. | Wind and power forecasting using LIDAR distance wind sensor |
| US8836518B2 (en) * | 2011-07-06 | 2014-09-16 | Earth Networks, Inc. | Predicting the potential for severe weather |
| US9346556B2 (en) * | 2012-07-31 | 2016-05-24 | General Electric Company | Method and apparatus for providing in-flight weather data |
| CN103955009B (en) * | 2014-04-25 | 2016-03-09 | 宁波市气象台 | A kind of method extracting Objective Typhoon forecast information from numerical forecasting product |
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