阅读说明：本技术 一种人工防御冰雹科学应用安全射界的有效作业方法及系统 (effective operation method and system for artificially defending hail scientific application safety shooting range ) 是由 李红斌 邓国峰 姚展予 夏薇 张靖萱 何阳 闻家梁 孙承梁 于 2019-08-07 设计创作，主要内容包括：本申请提供了一种人工防御冰雹科学应用安全射界的有效作业方法及系统,基于国家最新的人影高炮作业安全射界图应用规范,结合人工防雹催化原理及最新防雹理论,根据风暴单体的类型、防雹作业点的设置位置以及获取多普勒雷达回波的时间参量,确定作业发射仰角,与单纯依据作业安全射界图确定作业发射仰角相比,本申请最大限度地将高炮防雹作业的科学性和安全性有机结合,开展科学和安全有效的防雹作业,最大限度地减少炮弹损失和浪费,确保高炮人工防雹作业的有效实施,将冰雹灾害损失降到最低,从而达到人工防雹的目的,取得防雹作业社会综合效益。(The application provides an effective operation method and system for artificially defending hail scientific application safety shooting, based on the application specification of the latest national figure antiaircraft gun operation safety shooting map, the artificial hail prevention catalysis principle and the latest hail prevention theory are combined, according to the type of a storm monomer, the setting position of a hail prevention operation point and the time parameter for obtaining Doppler radar echo, the operation launching elevation angle is determined, and compared with the operation launching elevation angle determined only according to the operation safety shooting map, the application organically combines the scientificity and the safety of the antiaircraft gun hail prevention operation to the maximum extent, the scientific and safe and effective hail prevention operation is carried out, the shell loss and the waste are reduced to the maximum extent, the effective implementation of the antiaircraft gun artificial hail prevention operation is ensured, the hail disaster loss is reduced to the minimum, the aim of artificial hail prevention is achieved, and the comprehensive benefits of the hail prevention operation society are obtained.)

1. An effective operation method for artificially defending hail science application safety shooting, which is characterized by comprising the following steps:

acquiring Doppler radar echoes of storm monomers;

Judging the type of the storm monomer according to the Doppler radar echo;

When the storm monomer is a strong hail cloud in a mature stage and is located within a range of a hail suppression operation point, determining an operation launching elevation angle according to the set position of the hail suppression operation point;

and when the storm monomer is monomer hail cloud or multi-monomer hail cloud and is positioned in the range of a hail-suppression operating point, determining the operating emission elevation according to the time parameter for acquiring the Doppler radar echo.

2. the method of claim 1, wherein the step of determining the type of storm cell from the doppler radar echo comprises:

determining the type of the radar echo according to the radar characteristic parameters of the Doppler radar echo, wherein the radar characteristic parameters comprise: the echo intensity, the echo shape, the echo area, the strong center height, the cloud top height and the vertical integral liquid water content of the storm monomer.

3. the method of claim 1, wherein said step of determining a working transmission elevation angle based on a location of a hail suppression working site for a mature hail cloud comprises:

Determining the operational launch elevation angle to be 45 ° when the hail suppression operation point is disposed in a crop protection area;

determining that the operational launch elevation angle is greater than or equal to 55 ° when the hail suppression operation point is disposed in a lowland crop area upstream of a region of significant crop protection.

4. The method of claim 1, wherein said step of determining a working transmit elevation angle from said time parameter of acquisition of said doppler radar echo comprises:

When the time parameter of the single hail cloud or the multi-single hail cloud is spring or autumn, determining that the operation launching elevation angle is 45 degrees;

And when the time parameter of the single hail cloud or the multi-single hail clouds is summer, determining that the operation emission elevation is a high elevation of the center of the strong echo or a high elevation corresponding to a-6 ℃ layer.

5. The method of claim 4, wherein said step of determining a working transmit elevation angle from said time parameter of acquisition of said doppler radar echo further comprises:

When the time parameter of the single hail cloud or the multi-single hail cloud is spring or autumn, determining that the operation part is at the center of a strong echo of the Doppler radar echo or in a safe shooting boundary area close to one side of the center of the strong echo;

And when the time parameter of the single hail cloud or the multi-single hail cloud is in summer, determining that the operation part is the center of a strong echo of the Doppler radar echo or the height of a layer at minus 6 ℃.

6. An efficient operation system for artificially defending against hail science employing safe shooting boundaries, said system comprising:

an acquisition module configured to acquire a Doppler radar echo of a storm cell;

A determination module configured to determine a type of the storm cell from the Doppler radar echo;

the first operation module is configured to determine an operation emission elevation angle according to the set position of the hail-suppression operation point when the storm monomer is a strong hail cloud in a mature stage and is located within the range of the hail-suppression operation point;

And the second operation module is configured to determine an operation emission elevation according to the time parameter for acquiring the Doppler radar echo when the storm monomer is a monomer hail cloud or a multi-monomer hail cloud and is located in the range of a hail-suppression operation point.

7. the system of claim 6, wherein the decision module is specifically configured to:

Determining the type of the radar echo according to the radar characteristic parameters of the Doppler radar echo, wherein the radar characteristic parameters comprise: the echo intensity, the echo shape, the echo area, the strong center height, the cloud top height and the vertical integral liquid water content of the storm monomer.

8. the system according to claim 6, wherein for a mature hail cloud, said first operations module is specifically configured to:

Determining the operational launch elevation angle to be 45 ° when the hail suppression operation point is disposed in a crop protection area;

Determining that the operational launch elevation angle is greater than or equal to 55 ° when the hail suppression operation point is disposed in a lowland crop area upstream of a region of significant crop protection.

9. The system of claim 6, wherein the second job module is specifically configured to:

when the time parameter of the single hail cloud or the multi-single hail cloud is spring or autumn, determining that the operation launching elevation angle is 45 degrees;

and when the time parameter of the single hail cloud or the multi-single hail clouds is summer, determining that the operation emission elevation is a high elevation of the center of the strong echo or a high elevation corresponding to a-6 ℃ layer.

10. The system of claim 9, wherein the second job module is further configured to:

When the time parameter of the single hail cloud or the multi-single hail cloud is spring or autumn, determining that the operation part is at the center of a strong echo of the Doppler radar echo or in a safe shooting boundary area close to one side of the center of the strong echo;

and when the time parameter of the single hail cloud or the multi-single hail cloud is in summer, determining that the operation part is the center of a strong echo of the Doppler radar echo or the height of a layer at minus 6 ℃.

Technical Field

The invention relates to the field of artificial weather influence, in particular to an effective operation method and an effective operation system for artificial hail defense scientific application safety shooting.

background

hail disasters are one of the most serious meteorological disasters in China. Artificial hail suppression is an important measure and means for meteorological disaster prevention and reduction. The great company is positioned at the southeast end of the northeast, and the special geographic environment and climatic characteristics of three sides of the world cause the frequent weather of spring hail and autumn hail in the great company area, and the disasters generated by hail each year bring serious influence and hundred million yuan economic loss to the economic development of local national people, particularly to the production and the life of agriculture and peasants, so that the great importance is paid by leaders of governments at all levels, the artificial hail-suppression operation of the antiaircraft gun is developed in the last 50 th century, and the scientific operation experience is continuously accumulated in practice.

with the rapid development and application of a new-generation weather radar in China, the research on hail cloud identification and hail suppression operation technical methods is advanced, and the technological level and the operation benefit of artificial hail suppression operation are continuously improved; meanwhile, due to the continuous development of socioeconomic performance in China, the potential safety hazard factors of construction facilities and the like around the rocket and antiaircraft operation points are continuously increased, so that the weather modification operation has the limitation of an operation safety shooting range diagram, the rain fly operation of people cannot be brought into play with the corresponding benefits at the proper position, especially the artificial hail prevention operation of the antiaircraft can cause the loss and waste of shells due to the limitation of the safety shooting range, even the opposite result that hail is more and more serious is caused, the serious loss of hail disasters is caused, and the problems of adverse influence on local operation points and the disaster prevention and reduction work of meteorological phenomena are caused.

Disclosure of Invention

the invention provides an effective operation method and an effective operation system for scientifically applying safe shooting by artificially defending hail, which aim to solve the problems that the safety shooting boundary diagram of weather rocket and antiaircraft operation is artificially influenced, particularly, cannonball loss and waste are caused by the limitation of the safe shooting boundary in the antiaircraft artificial hail prevention operation, even the opposite result that the hail is shot more and more is generated, serious hail disaster loss is caused, and adverse influence is brought to local operation points and meteorological disaster prevention and reduction work.

In order to solve the problems, the invention discloses an effective operation method for artificially defending hail science application safety shooting, which comprises the following steps:

Acquiring Doppler radar echoes of storm monomers;

judging the type of the storm monomer according to the Doppler radar echo;

when the storm monomer is a strong hail cloud in a mature stage and is located within a range of a hail suppression operation point, determining an operation launching elevation angle according to the set position of the hail suppression operation point;

And when the storm monomer is monomer hail cloud or multi-monomer hail cloud and is positioned in the range of a hail-suppression operating point, determining the operating emission elevation according to the time parameter for acquiring the Doppler radar echo.

Compared with the prior art, the invention has the following advantages:

The technical scheme is based on the application standard of the national latest figure antiaircraft gun operation safety shot boundary diagram, the artificial hail suppression catalysis principle and the latest hail suppression theory are combined, the operation emission elevation angle is determined according to the type of a storm monomer, the setting position of a hail suppression operation point and the time parameter of obtaining Doppler radar echo, and compared with the operation emission elevation angle determined only according to the operation safety shot boundary diagram, the application maximally organically combines the scientificity and the safety of the antiaircraft gun hail suppression operation, develops scientific and safe and effective hail suppression operation, the shell loss and waste are reduced to the maximum extent, the effective implementation of the antiaircraft hail artificial hail suppression operation is ensured, the loss of the hail disaster is reduced to the minimum, the purpose of artificial hail suppression is achieved, and the comprehensive social benefit of the hail suppression operation is obtained.

Drawings

In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required to be used in the description of the embodiment of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain drawings for acquiring other radar storm monomer echoes according to the methods without inventive labor.

FIG. 1 shows a setting scene diagram of a figure 37mm antiaircraft gun;

FIG. 2 shows a safe shot point map for a figure 37mm antiaircraft gun;

FIG. 3 is a flow chart illustrating steps of a method for effectively operating an artificial defense against hail scientific applied safety range according to an embodiment of the present application;

FIG. 4 shows a PPI and RHI radar echo superposition map of the hail clouds in the area of 2018, 9, 29, 12:51 major reaches;

FIG. 5 shows a 12:51 hail cloud radar echo versus plum blossom sense organ horizontal distance plot of 9.29.2018;

Fig. 6 shows a block diagram of an effective operation system for artificially defending against hail science application safety range according to an embodiment of the present application.

Detailed Description

in order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

With the continuous expansion of the demand and the scale of the artificial hail suppression operation in China, the cognition of people on the space structure of the hail suppression cloud is the premise of effectively implementing the hail suppression operation, and a new-generation weather radar is an important technical means for knowing the structure of the hail suppression cloud and is also an essential detection tool for decision and command of the current artificial hail suppression operation. With the continuous development of weather radar technology, more important technical support is certainly provided for artificial hail suppression and rain enhancement operation decision and real-time command, but how to scientifically apply a safe shooting range diagram on the basis, the artificial hail suppression operation is safely and effectively implemented, the loss and waste of human rain bullets are reduced, and the economic loss of hail disaster is reduced to the minimum is still a technical problem.

The artificial hail suppression operation is mainly characterized in that an antiaircraft gun (or rocket) is used for launching cannonballs (or rocket bullets) to proper positions in a hail cloud to explode (or spray) in the cloud, artificial catalysis ice nuclei (AgI) are conveyed to a hail embryo growth area in the hail cloud, and therefore influences are exerted on a cloud layer, the hail embryo in the cloud cannot grow into a large hail, or small ice particles are made to land on the ground in advance before becoming the large hail to become the hail and cannot form the catalysis principle of the hail disaster. The selection of the hail suppression operation part is crucial, the operation effect is influenced, the loss and the waste of the cannonball can be caused, and the success or failure of the operation is determined particularly for the developed strong hail cloud.

The artificial hail suppression operation safety shooting boundary is a preselected falling safety area range of the unexploded pellet for preventing ground personnel or important facilities from being damaged when the unexploded pellet in the air falls to the ground. The shadow antiaircraft gun and rocket operation is quasi-military activity, the operation safety is always the best of the major matters such as shadow, the shadow safety management regulation issued by the country in 2001 has already been stipulated, and at present, the latest shadow 37mm antiaircraft gun (refer to figure 1) operating point safety shooting boundary diagram (refer to figure 2) making standard is issued by the Chinese meteorological office (2015).

The method aims to solve the problems that the safety shooting boundary diagram of weather rocket and antiaircraft operation is artificially influenced, particularly, artillery manual hail suppression operation is limited by the safety shooting boundary to cause cannonball loss and waste, even the opposite result that hailstones are more and more serious is caused, serious hailstone damage is caused, and adverse effects are brought to local operation points and meteorological disaster prevention and reduction work. The invention is based on the application specification of the national latest figure antiaircraft gun operation safety shooting boundary diagram, through the business application practice of carrying out the target on the antiaircraft gun artificial hail suppression operation safety shooting boundary in recent years, particularly the problem that the antiaircraft gun has operation failure and the like in the implementation operation of strong hail clouds with strong development, the invention combines the artificial hail suppression catalysis principle and the latest hail suppression theory, and the research on the hail suppression operation practice in the world of the world, particularly the technical analysis summary of the typical strong hail-suppression antiaircraft hail suppression operation in the world of 29 th 9 th 2018 th, and the invention aims at scientifically applying the safety shooting boundary diagram to the antiaircraft artificial hail suppression, ensures that the hail suppression operation is deeply analyzed and summarized, and provides an effective operation method for the artificial hail defense scientific application safety shooting boundary, which is specifically as follows:

in a season that hail suppression is easy to occur, firstly, a Doppler radar echo of a storm monomer is obtained through a hail suppression command system; judging the type of the storm monomer according to the Doppler radar echo; when the storm monomer is a strong hail cloud in a mature stage and is located within the range of a hail suppression operating point, determining an operating emission elevation angle according to the set position of the hail suppression operating point; when the storm monomer is monomer hail cloud or multi-monomer hail cloud and is located in the range of the hail-suppression operating point, the operating emission elevation angle is determined according to the time parameter of obtaining Doppler radar echo.

referring to fig. 3, a flow chart of steps of an effective operation method for artificially defending against hail science application safety shooting is shown.

Wherein, storm monomer is convection current cloud, including thundercloud and hail cloud.

Specifically, the type of the storm cell can be determined according to a radar characteristic parameter of a doppler radar echo, wherein the radar characteristic parameter includes: the echo intensity, echo shape, echo area, strong center height, cloud top height and vertical integral liquid water content of the storm monomer.

For example, when the echo intensity of the Doppler radar echo is greater than or equal to 25dBZ, the height of the strong center (30dBZ) is between 4.0km and 5.3km, the height of the top of the strong center (30dBZ) is between 6km and 11km, the height of the cloud top is between 8km and 16km, and the vertically integrated liquid water content is 5g/m²To 40g/m²in between, can judge that the storm monomer is monomer hail cloud.

When the echo intensity of the Doppler radar echo is greater than or equal to 30dBZ, the height of the strong center (30dBZ) is between 4.0km and 6km, the height of the top of the strong center (30dBZ) is between 7km and 13km, the height of the cloud top is between 10km and 17km, and the vertically integrated liquid water content is 10g/m²to 50g/m²In between, can judge that the storm monomer is multi-monomer hail cloud.

When the echo intensity of the Doppler radar echo is greater than or equal to 45dBZ, the height of the strong center (30dBZ) is between 5.0km and 7.5km, the height of the top of the strong center (30dBZ) is between 9km and 15km, the height of the cloud top is between 12km and 18km, and the vertically integrated liquid water content is greater than or equal to 25g/m²and in time, the storm monomer can be judged to be the hail cloud. Further, whether the hail clouds are in a mature stage or not can be judged according to radar characteristic parameters such as the shape, the area size, the echo intensity, the height of a strong center, the height of a cloud top, the vertical integral liquid water content and the like of the hail clouds. In practical application, the radar characteristic parameter values of the strong hail clouds in the mature stage can be defined according to the actual conditions of all regions, historical data and the like.

When the storm monomer is the strong hail cloud of maturity stage, and is located hail suppression operation point's range, can confirm this hail suppression operation point's operation emission elevation according to hail suppression operation point's the position that sets up.

When the storm monomer is monomer hail cloud or multi-monomer hail cloud and is located in the range of the hail-suppression operating point, the operating emission elevation angle can be determined according to the season corresponding to the time parameter for obtaining the Doppler radar echo.

the effective operation method for the artificial hail defense scientific application safety fire boundary provided by the embodiment is based on the application specification of the latest national figure antiaircraft gun operation safety fire boundary diagram, combines the artificial hail defense catalysis principle and the latest hail defense theory, determines the operation launching elevation according to the type of a storm monomer, the setting position of a hail defense operation point and the time parameter of obtaining Doppler radar echo, and compared with the operation launching elevation determined only according to the operation safety fire boundary diagram, the method organically combines the scientificity and the safety of the antiaircraft hail defense operation to the maximum extent, develops the scientific, safe and effective hail defense operation, reduces the loss and the waste of shells to the maximum extent, ensures the effective implementation of the antiaircraft gun artificial hail defense operation, reduces the loss of hail disasters to the minimum, thereby achieving the purpose of artificial hail defense, and obtaining the comprehensive social benefits of the hail defense operation.

In one implementation manner of the embodiment, the step of determining the operation transmitting elevation angle according to the set position of the hail suppression operation point may include: when the hail suppression operation point is arranged in a crop protection area, determining that the operation emission elevation angle is 45 degrees; when the hail suppression operating point is disposed in a low-crop area upstream of the area of significant crop protection, the operating launch elevation angle is determined to be greater than or equal to 55 °.

specifically, when the mature strong hail cloud (super monomer hail cloud) is developed and enters the range of the hail suppression operation point, the selection of the hail suppression operation elevation angle has two schemes according to the actual situation, wherein the scheme is as follows: if the hail-suppression operation point is arranged at a low crop area at the upstream of the important crop protection area (namely, the low crop area behind the important crop protection area in the advancing direction of the strong hail cloud), the elevation angle of the hail-suppression operation safety shooting boundary is more than or equal to 55 degrees, namely, the hail-suppression point is used for landing the strong hail in advance (namely, the principle of 'losing cars and protecting the hails'), so as to protect the downstream important crop area, minimize hail disasters and achieve the aim of hail suppression; scheme II: if the hail-suppression operation point is just arranged in a crop protection area, the elevation angle of a safety range of the antiaircraft hail-suppression operation should be selected to be 45 degrees, namely a weak echo area (10-30dBz) in front of and below the center of a strong echo of the hail cloud radar, or the hail-suppression operation is not performed, so that the opposite result is avoided.

In an implementation manner of this embodiment, the step of determining the operation transmission elevation angle according to the time parameter of acquiring the doppler radar echo may include: when the time parameter of the single hail cloud or the multi-single hail cloud is spring or autumn, determining that the operation launching elevation angle is 45 degrees; and when the time parameter of the single hail cloud or the multi-single hail clouds is summer, determining that the operation emission elevation is the high elevation of the center of the strong echo or the high elevation corresponding to the-6 ℃ layer.

Further, the step of determining the operation transmitting elevation angle according to the time parameter of the obtained Doppler radar echo can further comprise: when the time parameter of the single hail cloud or the multi-single hail cloud is spring or autumn, determining that the operation part is at the center of a strong echo of a Doppler radar echo or in a safe shooting boundary area close to the center of the strong echo; and when the time parameter of the single hail cloud or the multi-single hail cloud is in summer, determining that the operation part is the strong echo center of the Doppler radar echo or the height of a layer at minus 6 ℃.

Specifically, artificial hail suppression operation is carried out in spring and autumn (or the height of a zero-degree layer is lower), 45 degrees (namely the lowest elevation angle of safe operation of an antiaircraft gun) should be selected for the transmitting elevation angle of hail suppression operation of single hail clouds or multi-single hail clouds, namely when hail suppression operation is carried out on the single hail clouds or the multi-single hail clouds, the operation parts are selected at the strong center of radar echo RHI (or in a safe fire boundary area close to one side of the strong center); if the elevation angle is higher, the hail suppression and rain enhancement operation benefit (the effect of artificial catalysis ice nucleus on eating the supercooled water is not obvious) can be reduced, and a great amount of rain shells are lost and wasted.

When the artificial hail suppression operation is carried out on the single hail clouds or the multi-single hail clouds in summer, the operation part is selected at the height corresponding to the center of the strong echo of the hail cloud radar RHI or the layer at minus 6 ℃, and the elevation angle emitted by the antiaircraft gun is the height elevation angle of the center of the strong echo or the height elevation angle corresponding to the layer at minus 6 ℃.

through the effective operation method of the artificial defense hail scientific application safety shooting border provided by the application, the safe operation and the scientific operation can be organically integrated, the effective implementation of the antiaircraft gun artificial hail suppression operation is ensured, the hail disaster loss is reduced to the minimum, and the artificial hail suppression effect and the purpose are achieved.

in the practical application process, on the basis of a developed and established artificial hail suppression operation decision command system in the metropolitan market, the determining technical method for the operation part of the antiaircraft hail suppression safe and effective implementation can be obtained by superposing the safe shot boundary diagram of the antiaircraft operation point and the hail suppression decision command system, and combining the real-time output elevation angle and azimuth angle of the antiaircraft operation with the technical idea method according to radar development related technologies.

When the weather station sends out short-term 24-hour forecast of convective rainfall or hail weather, the business platform of the market figure command center monitors in real time according to the new generation weather radar in the large company city, guarantees the business operation of the artificial hail suppression operation decision command system, carries out real-time operation early warning and decision judgment on hail clouds in a certain area of an operation point, timely determines and outputs the related technical scheme (the operation time, the operation position, the shot consumption and the like) of the antiaircraft hail suppression operation of the operation point, and sends out operation alarm.

and (3) according to the related operation points and operation technical schemes which are reported and output by the radar hail suppression decision command system, the city shadow command center performs further characteristic analysis such as high-visibility vertical profile on the echo intensity of the hail cloud radar, judges whether the hail cloud is a mature strong hail cloud or not, carefully determines the implementation scheme of hail suppression operation and guides the operation.

After the operation, the urban shadow should be investigated and hail-reducing information collected in time, and necessary scientific popularization explanations and the like are carried out on disaster-affected operation points and related aspects according to the conditions.

for easy understanding, a typical strong hail-reducing weather process of 9, 29 and 29 days in 2018 in the Dalian province is described in detail in combination with the effective operation method of the artificial hail defense science application safety range.

The weather potential field generated by the strong hailstone cloud is the most common northeast cold vortex potential field in the great reaches of regions. The urban shadow command center analyzes and discovers in real time through body scanning data monitored by a large-range Doppler radar in real time and a radar hail suppression decision command system: the hail cloud is formed on a strong convection echo band above a Bohai sea at 27 th day at 9 am, after development and evolution lasting for 3 hours or more, the hail cloud is logged in a northern mountain area of Dalian in 51 minutes at 12 hours, and rapidly develops into a mature strong hail cloud under the combined action of terrain lifting and thermal lifting (referring to radar echoes such as radar RHI high-apparent echo intensity, stretching space and strong echo center height in figure 4, and the strong hail cloud about hail reduction can be clearly seen). The urban shadow organization organizes two hail-suppression operation points of local Liguan and Tucheng in time to develop the antiaircraft joint defense operation.

12 hours 51 minutes, the city mansion command center hail suppression command system platform alarms, and output the li guan, the local city operating point hail suppression operation approaches the early warning scheme, the city mansion command center finds through manual correction analysis that the strong hail cloud is the slope form, and the strong center position has been in the antiaircraft gun range, just inform two operating points immediately and make the antiaircraft gun implement and prepare, required adjustment elevation angle to 55 degrees according to the li guan operating point safety shot boundary diagram, after applying through the operation airspace, 53 minutes at 12 minutes point the hail suppression operation has been implemented simultaneously to two gun points of li guan, local city, the common firing hail suppression shell 80 launches. Wherein, the hail-proof cannonball 40 is shot by adopting 45-degree elevation angle at the shot point (in the crop protection area) of the southern soil city, and a small amount of soft hail is put around the shot point after the operation; in the operation process, strong hail reduction (namely the strong hail reduction which cannot be met in twenty years in the local area) is generated in the range of the shot point and more than ten square kilometers in the north, the longest hail reduction lasts for more than ten minutes, the maximum hail reduction diameter is 20, and the local fruit growers suffer from serious hail disasters and economic losses in the mature picking period of the apples.

Research and technology show that the elevation angle of the cannon is raised according to the requirement of a safe shooting boundary when a Li guan (refer to black solid triangle in figure 4) works at a north working point, the elevation angle is raised from original 45 degrees to 55 degrees, and measurement and analysis show that the hail-resistant cannonball is hitting a strong center of a hail cloud, namely a hail removing point (refer to figures 4 and 5, a 3305 factory cannonball is adopted, the height of the 55-degree elevation angle explosion point is 4.3km, and the horizontal distance is 3.5 km; from 12 hours 51 radar echoes RHI, the height of the strong center of the hail cloud is between 4 and 6km and is 3.4km or so away from the horizontal distance of the Li guan working point), so that strong hail is locally generated, the Dongmatun Dalian apple production base of a downstream area is unintentionally protected, and hail disaster loss of the Dalian ice city is reduced to the minimum.

the application is based on the application specifications of the latest national figure antiaircraft gun operation safety shooting boundary diagram, combines an artificial hail suppression catalysis principle and the latest hail suppression theory, and is researched and researched by years of hail suppression operation practice in the Dalian region, and particularly summarizes and researches the technical method for effectively applying the antiaircraft gun artificial hail suppression operation safety shooting boundary diagram on the one-time typical strong hail suppression in the Dalian city in 9-29 th in 2018. The method organically combines the scientificity and safety of the antiaircraft hail suppression operation to the maximum extent, carries out scientific, safe and effective hail suppression operation, reduces the loss and waste of shells to the maximum extent, and reduces the loss of hail disasters to the minimum, thereby achieving the aim of artificial hail suppression and obtaining the social comprehensive benefits of hail suppression operation.

another embodiment of the present application also provides an effective operation system for artificial defense against hail scientific application safety law, referring to fig. 6, which may include:

An obtaining module 601 configured to obtain a doppler radar echo of a storm cell;

A determination module 602 configured to determine a type of the storm cell from the doppler radar echo;

A first operation module 603 configured to determine an operation launch elevation according to a set position of a hail suppression operation point when the storm monomer is a strong hail cloud at a mature stage and is within a range of the hail suppression operation point;

A second operation module 604 configured to determine an operation emission elevation according to a time parameter for obtaining the doppler radar echo when the storm monomer is a single hail cloud or a multi-single hail cloud and is within a range of a hail suppression operation point.

In an optional implementation manner, the determining module 602 is specifically configured to:

Determining the type of the radar echo according to the radar characteristic parameters of the Doppler radar echo, wherein the radar characteristic parameters comprise: the echo intensity, echo shape, echo area, strong center height, cloud top height and vertical integral liquid water content of the storm monomer.

in an optional implementation manner, the first job module 603 is specifically configured to:

Determining the operational launch elevation angle to be 45 ° when the hail suppression operation point is disposed in a crop protection area;

Determining that the operational launch elevation angle is greater than or equal to 55 ° when the hail suppression operation point is disposed in a lowland crop area upstream of a region of significant crop protection.

in an optional implementation, the second job module 604 is specifically configured to:

when the time parameter of the single hail cloud or the multi-single hail cloud is spring or autumn, determining that the operation launching elevation angle is 45 degrees;

And when the time parameter of the single hail cloud or the multi-single hail clouds is summer, determining that the operation emission elevation is a high elevation of the center of the strong echo or a high elevation corresponding to a-6 ℃ layer.

Further, the second job module 604 is further configured to:

When the time parameter of the single hail cloud or the multi-single hail cloud is spring or autumn, determining that the operation part is at the center of a strong echo of the Doppler radar echo or in a safe fire boundary area close to one side of the center of the strong echo;

and when the time parameter of the single hail cloud or the multi-single hail cloud is in summer, determining that the operation part is the center of the strong echo of the Doppler radar echo or the height of a layer at minus 6 ℃.

the effective operation system for artificially defending hail science application safety shooting provided by the embodiment can realize various processes and effects in the method embodiment shown in fig. 3, and is not described herein again in order to avoid repetition.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The effective operation method and system for the artificial hail defense scientific application safety range provided by the invention are introduced in detail, a specific example is applied in the method to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.