CN118274676A - Method for reducing thunderstorm system based on high-energy catalysis mode - Google Patents
Method for reducing thunderstorm system based on high-energy catalysis mode Download PDFInfo
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Abstract
A method for reducing a thunderstorm system based on a high-energy catalytic mode, comprising the following steps: judging the occurrence position, strength, moving path and moving speed of the thunderstorm system by utilizing satellite and radar data; on the moving path of the thunderstorm system, the effective high-energy catalysis protection distance is met, multiple defense lines are arranged according to the moving speed, and proper catalysis time for reducing the thunderstorm system is selected; identifying a suitable catalytic site within the thunderstorm system; the high-energy catalytic material is brought into the thunderstorm system by using the power device, and a series of steps are carried out to form a disturbing airflow field with strong gradient, so that the attenuation effect on the thunderstorm system is achieved. The invention reduces the thunderstorm system by using a manual intervention mode, reduces damage to electric facilities, forests, personal safety, buildings and the like caused by strong convection weather of lightning stroke, lightning, strong wind, hail and strong precipitation, improves the capability of resisting the thunderstorm system and reduces the disaster risk of the thunderstorm system.
Description
Technical Field
The invention relates to a method for manually intervening in a thunderstorm system, in particular to a method for reducing the thunderstorm system based on a high-energy catalysis mode, and belongs to the technical field of the intersection subjects of atmospheric science and explosive physics.
Background
Thunderstorm systems are often accompanied by strong convective weather systems of lightning strikes, lightning, strong winds, hail and strong precipitation, bringing great safety risks to electrical facilities, flight safety, personal safety, buildings and the like. The lightning generated by the thunderstorm system has frequent influence on the safe operation of the power grid, and the lightning strike problem of the power grid is always focused. According to the statistical result of six years, the lightning trip accounts for 39.4% -50.8% of the total number of the trips of the alternating current transmission lines of 330 kV and above, and the lightning restart accounts for 43.5% -64.3% of the total number of the fault restarts of the direct current transmission lines of +/-500 kV and above. It follows that lightning strikes remain a primary factor in transmission line tripping/fault restarting (hereinafter "tripping"). Lightning also causes lightning strike fire risk, the house is scraped down by strong wind, crops such as big trees, fruits, vegetables and the like are seriously lost after being struck by hail, even particles are not collected, and sometimes local storm also causes geological disasters such as mountain torrents, debris flows and the like. Thunderstorm systems can produce a wide variety of weather phenomena that endanger flight safety, such as strong turbulence, jolts, ice accretions, lightning strikes (lightning strikes), storms, sometimes accompanied by hail, tornadoes, downburst and low altitude wind shear. In the clouds rolled in the air, huge energy is stored, and the clouds have extremely high destructive power. When the aircraft enters the thunderstorm active area by mistake, the light person causes man-machine injury, and the heavy person destroys the man and death. Thus, thunderstorms are now recognized by the world aviation world and the meteorological sector as natural enemies that severely threaten aviation flight safety. The ascending and descending air flow in the thunderstorm cloud causes serious threat to the flight, especially the thunderstorm cloud in the mature stage, the strongest ascending air flow can reach 50-60 m/s, the highest ascending air flow is different from typhoon, the aircraft flies in the thunderstorm area, and the aircraft can encounter serious jolts, so that the flying height can rise and fall within tens of meters to hundreds of meters within a few seconds. In severe cases, the flight instruments are distorted, and the aircraft is difficult to operate and even out of control, which is one of the most dangerous weather phenomena causing flight accidents.
Manual intervention of the thunderstorm system, which reduces the damage of the thunderstorm system, is a great challenge task.
Disclosure of Invention
The invention aims to provide a method for reducing a thunderstorm system based on a high-energy catalysis mode, which reduces damages to electric facilities, forests, personal safety, buildings and the like caused by strong convection weather accompanied by lightning stroke, lightning, strong wind, hail and strong precipitation of the thunderstorm system, improves the capability of resisting the thunderstorm system and reduces the disaster risk of the thunderstorm system.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for reducing a thunderstorm system based on a high-energy catalysis mode is characterized by comprising the following steps:
S1, judging the occurrence position, strength, moving path and moving speed of a thunderstorm system by utilizing satellite and radar (etc.) data;
S2, on the moving path of the thunderstorm system, the effective high-energy catalysis protection distance is met, a plurality of defense lines are set according to the moving speed, and proper catalysis time for reducing the thunderstorm system is selected;
s3, identifying a proper catalytic part in the thunderstorm system;
And S4, carrying a proper high-energy catalytic material into the thunderstorm system by using a power device, and forming a dynamic equivalent pressure field around the explosion point by using the high-energy catalytic effect including shock waves, sound waves and disturbance airflow fields generated by power explosion, wherein the pressure gradient force generated by the shock waves of the explosion plays a role in braking the rising airflow of the thunderstorm system, and the shock waves convert energy into airflow disturbance energy in dissipation to form the disturbance airflow field with a strong gradient, so that the effect of reducing the thunderstorm system is achieved.
In the above technical solution, the preferred technical solution may be that step S1 includes:
S1.1, judging the occurrence position of a thunderstorm system by utilizing satellite and radar data;
s1.2, judging the intensity level of the thunderstorm system according to the characteristic and the threshold of the thunderstorm system in satellite data and radar data;
s1.3, continuously tracking a thunderstorm system by utilizing satellite and radar data, and determining a moving path and a moving speed of the thunderstorm system;
s1.4, the occurrence position, strength, moving path and moving speed of the thunderstorm system are obtained after processing according to the steps S1.1, S1.2 and S1.3.
In the above technical solution, the preferred technical solution may further include step S2:
S2.1, determining a single-point single-time high-energy protection effective distance R1 according to multiple protection effect statistics;
S2.2, setting 2-5 defense lines according to the moving speed V of the thunderstorm system, comparing R2 with R1 at intervals of 5min, and setting the defense lines;
(1) If R1 is more than or equal to R2, setting a defense line at the distance of R2;
(2) If R1 is less than R2, setting a defense line with the distance of R1;
s2.3, selecting proper operation time according to the intensity level (F) and the development stage of the thunderstorm system.
In the above technical solution, the preferable technical solution may further include step S3:
S3.1, statistical analysis shows that a main inflow region exists in the flow field of the thunderstorm system, the main horizontal inflow corresponds to the main updraft region on the vertical plane, and a zero region with the relative horizontal velocity close to zero (zero) exists in the hollow; analyzing radar tracking monitoring thunderstorm system data and flow field data, and finding out an area where a zero domain is located;
And S3.2, determining a main inflow region below a zero region as a proper catalytic site.
In the above technical solution, the preferable technical solution may further include step S4:
s4.1, utilizing a power device to bring a proper high-energy catalytic material into the thunderstorm system;
S4.2, forming dynamic equivalent pressure field around the explosion point of the high-energy catalytic material, wherein the pressure gradient force generated by the explosion shock wave has a braking effect on the ascending air flow of the thunderstorm system; the dynamic explosion can generate light sound waves, the shock waves can also decay into sound waves, and the influence range of the strong sound waves reaches 300-500 meters; the shock wave converts energy into air flow disturbance energy in dissipation to form a disturbance air flow field with strong gradient; the impact wave, sound wave and disturbance airflow field generated by dynamic explosion can reduce thunderstorm system.
In the above technical solution, the preferable technical solution may also be that the power device in step S4 is a ground emission device such as an antiaircraft gun or a rocket gun, or an airborne emission device such as a flame bomb, and the power device may be any one of an antiaircraft gun, a rocket gun, and a flame bomb emitter, and the action of the power explosion on the thunderstorm system in step S4.2 is rapid, and the action on the thunderstorm system is completed within 5-10 minutes after the explosion.
From the physics of explosives, it is known that the energy of the shock wave caused by explosion in the air accounts for more than 90% of the energy released by explosion, and the shock wave is transmitted outwards and inwards after being formed, and because the shock wave passes through an air medium and is an entropy increasing process, the wave energy is dissipated and converted into irregular thermal motion energy in the dissipation, so that the shock wave is fast attenuated in the propagation, and the shock wave is estimated by installing 60g of passivated black ropes Jin Zhayao in each high-energy catalytic material, and the overpressure of the shock wave is reduced to about 1g/cm 2 at a distance of 100m from the explosion point. For high-energy catalytic materials, whether wave energy or not, most of the explosion energy is concentrated within 100m of the point of explosion.
In step S4, for high-energy catalytic power explosion, the pressure gradient force generated by the shock wave of the high-energy catalytic power explosion plays a role in braking the airflow, and the ascending airflow of 3-8 m/S is braked to zero.
In step S4, for high-energy catalytic power explosion, it is concentrated within the explosion point 100m, and the disturbance energy mainly comes from explosion energy, or the disturbance energy can be developed due to instability of motion caused by external disturbance or inherent randomness of flow, and the energy of the disturbance air flow can be quite large, if the maximum value of the disturbance energy is 25m 2/S2, that is, the average magnitude of the disturbance is 5m/S (the observed value in the convection cloud is 7 m/S), so that a disturbance field with the intensity rapidly decreasing towards the periphery centering around the explosion point can have quite strong effect with the basic flow. In the step S4, the thunderstorm system is subjected to the reduction effect, wherein the radar echo shows that the intensity of the thunderstorm system is weakened, the thunderstorm system is split, the echo collapse top is low, the intensity of the generated thunder is weakened, the frequency is low and the like; the time interval for the abatement of the thunderstorm system is 5-10 minutes.
In the above technical solution, the preferable technical solution may further be that the high-energy catalytic material explosion point in step S4.2 includes: after the power device emits the high-energy catalytic material, the high-energy catalytic material fuze is ignited to generate a power explosion position. According to the difficulty of the thunderstorm system in reducing, the silver iodide-carrying high-energy catalytic material is emitted to the proper position on the moving path and in the thunderstorm system, and the high-energy catalytic material and the traditional catalyst act together, so that the aim of reducing the thunderstorm system is fulfilled.
The invention provides a method for reducing a thunderstorm system based on a high-energy catalysis mode, which improves the monitoring and protection of the thunderstorm system by one step, and forms a set of closed loop processing technology for monitoring, early warning, protection and intervention of the thunderstorm system.
In summary, the invention provides a method for reducing a thunderstorm system based on a high-energy catalysis mode, which reduces damage to electric facilities, forests, personal safety, buildings and the like caused by strong convection weather accompanied by lightning stroke, lightning, strong wind, hail and strong precipitation of the thunderstorm system, improves the capability of resisting the thunderstorm system, and reduces disaster risk of the thunderstorm system. Through external field test, through SCIT monomer tracking, it is found that the thunderstorm monomer without manual intervention has a life history of 33 individual scans (one individual scan for 6 minutes), while the thunderstorm monomer after manual intervention has a fast weakening dissipation, and only 1 individual scan is maintained for weakening dissipation, and only 4 individual scans are maintained for the longest, and the life history of the thunderstorm monomer is greatly reduced.
Drawings
Fig. 1 is a flow chart of a first embodiment of the present invention (method for reducing thunderstorm systems based on high energy catalysis).
Fig. 2 is a schematic structural diagram of a high-energy catalytic manner-based thunderstorm abatement system according to a first embodiment of the invention.
Fig. 3 is a vertical cross-section of a radar echo, flow field and internal operating site of a typical thunderstorm system in accordance with a first embodiment of the invention.
Fig. 4 and 5 are schematic diagrams of reynolds stress field characteristics generated by a dynamic field (or a disturbance field) generated by an explosion in a first example of the invention. Fig. 4 is a diagram of stress field characteristics formed by a local strong dynamic field (or disturbance field), and fig. 5 is a diagram of the effect of reynolds stress field on background flow.
FIG. 6 is a diagram of a first embodiment of the invention for a thunderstorm system SCIT monomer trace and station location (O is the thunderstorm monomer historical location, +..
Fig. 7 is a graph of the horizontal echo and vertical profile evolution of the radar before and after high energy catalysis of the operating point to thunderstorm system (contour lines represent reflectivity factors, units: dBZ,Representing the job location).
Fig. 8 is a diagram of the evolution of SCIT monomer tracking non-tampered and tampered thunderstorm system monomers according to the first embodiment of the present invention (the solid line with black dots is the tampered monomer, and the arrow is the working time).
FIG. 9 is a graph showing the evolution of the original lightning peak current and the lightning peak current in the protection range of 2-3km in the first embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to examples. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art without the inventive effort, are within the scope of the present invention based on this embodiment.
Example 1: description of the drawings: in fig. 2, reference numeral 1 denotes a power plant, reference numeral 2 denotes a transmission device, reference numeral 3 denotes a power explosion, and reference numeral 4 denotes a thunderstorm system. In fig. 3, the area D is radar echo, the solid line a is a thunderstorm system flow field, the solid line B is a zero line position, and the flat circular area C is an operation area.
As shown in fig. 1,2, 3,4, 5, 6, 7, 8 and 9, the method for reducing thunderstorm system based on high-energy catalysis mode of the invention comprises the following steps:
s1, judging the occurrence position, strength, moving path and moving speed of the thunderstorm system by utilizing satellite and radar data. The step S1 comprises the following steps:
S1.1, judging the occurrence position of a thunderstorm system by utilizing satellite and radar data;
s1.2, judging the intensity level of the thunderstorm system according to the characteristic and the threshold of the thunderstorm system in satellite data and radar data;
s1.3, continuously tracking a thunderstorm system by utilizing satellite and radar data, and determining a moving path and a moving speed of the thunderstorm system;
s1.4, the occurrence position, strength, moving path and moving speed of the thunderstorm system are obtained after processing according to the steps S1.1, S1.2 and S1.3.
S2, on the moving path of the thunderstorm system, the high-energy catalysis effective protection distance is met, a plurality of defense lines are set according to the moving speed, and proper catalysis time for reducing the thunderstorm system is selected. The step S2 comprises the following steps:
S2.1, determining a single-point single-time high-energy protection effective distance R1 according to multiple protection effect statistics;
S2.2, setting 2-5 defense lines according to the moving speed V of the thunderstorm system, comparing R2 with R1 at intervals of 5min, and setting the defense lines;
(1) If R1 is more than or equal to R2, setting a defense line at the distance of R2;
(2) If R1 is less than R2, setting a defense line with the distance of R1;
s2.3, selecting proper operation time according to the intensity level and the development stage of the thunderstorm system.
And S3, identifying a proper catalytic site in the thunderstorm system. The step S3 comprises the following steps:
S3.1, a main inflow region exists in the flow field of the thunderstorm system, the main horizontal inflow corresponds to the main updraft region on the vertical plane, and a zero region with the relative horizontal velocity close to zero (zero) exists in the hollow; analyzing radar tracking monitoring thunderstorm system data and flow field data, and finding out an area where a zero domain is located;
And S3.2, determining a main inflow region below a zero region as a proper catalytic site.
And S4, carrying a proper high-energy catalytic material into the thunderstorm system by using a power device, and forming a dynamic equivalent pressure field around the explosion point by using the high-energy catalytic effect including shock waves, sound waves and disturbance airflow fields generated by power explosion, wherein the pressure gradient force generated by the shock waves of the explosion plays a role in braking the rising airflow of the thunderstorm system, and the shock waves convert energy into airflow disturbance energy in dissipation to form the disturbance airflow field with a strong gradient, so that the effect of reducing the thunderstorm system is achieved. The step S4 includes:
s4.1, utilizing a power device to bring a proper high-energy catalytic material into the thunderstorm system;
S4.2, forming dynamic equivalent pressure field around the explosion point of the high-energy catalytic material, wherein the pressure gradient force generated by the explosion shock wave has a braking effect on the ascending air flow of the thunderstorm system; the dynamic explosion can generate light sound waves, the shock waves can also decay into sound waves, and the influence range of the strong sound waves reaches 300-500 meters; the shock wave converts energy into air flow disturbance energy in dissipation to form a disturbance air flow field with strong gradient; the impact wave, sound wave and disturbance airflow field generated by dynamic explosion can reduce thunderstorm system.
In the step S4, the power device is a foundation launching device such as an antiaircraft gun or a rocket gun, or an airborne launching device such as a flame bomb, and the power device can be any one of the antiaircraft gun, the rocket gun and the flame bomb launcher, and in this embodiment, the power device is the antiaircraft gun. The action of the dynamic explosion on the thunderstorm system in step S4.2 is rapid, and the action on the thunderstorm system is completed within 5 minutes after the explosion. From the physics of explosives, it is known that the energy of the shock wave caused by explosion in the air accounts for more than 90% of the energy released by explosion, and the shock wave is transmitted outwards and inwards after being formed, and because the shock wave passes through an air medium and is an entropy increasing process, the wave energy is dissipated and converted into irregular thermal motion energy in the dissipation, so that the shock wave is fast attenuated in the propagation, and the shock wave is estimated by installing 60g of passivated black ropes Jin Zhayao in each high-energy catalytic material, and the overpressure of the shock wave is reduced to about 1g/cm 2 at a distance of 100m from the explosion point. For high-energy catalytic materials, whether wave energy or not, most of the explosion energy is concentrated within 100m of the point of explosion. In step S4, for the high-energy catalytic power explosion, the pressure gradient force generated by the shock wave of the high-energy catalytic power explosion plays a role in braking the airflow, and the ascending airflow of 3-8 m/S is braked to zero. In step S4, for the high-energy catalytic power explosion, it is concentrated within 100m of the explosion point, and the disturbance energy mainly comes from explosion energy, or the disturbance energy can be developed due to instability of motion caused by external disturbance or inherent randomness of flow, and the energy of the disturbance air flow can be converted from basic flow, so that if the maximum value of the disturbance energy is 25m 2/S2, that is, the average magnitude of the disturbance is 5m/S (the observed value in convection cloud is 7 m/S), such a disturbance field with the explosion point as the center and the intensity rapidly decreasing towards the periphery can have quite strong effect on the basic flow.
In the step S4, the thunderstorm system is subjected to the reduction effect, wherein the radar echo shows that the intensity of the thunderstorm system is weakened, the thunderstorm system is split, the echo collapse top is low, the intensity of the generated thunder is weakened, the frequency is low and the like; the time interval for the abatement of the thunderstorm system is 5-10 minutes. The high-energy catalytic material explosion point in step S4.2 comprises: after the power device emits the high-energy catalytic material, the high-energy catalytic material fuze is ignited to generate a power explosion position.
According to the difficulty of the thunderstorm system in reducing, the silver iodide-carrying high-energy catalytic material is emitted to the proper position on the moving path and in the thunderstorm system, and the high-energy catalytic material and the traditional catalyst act together, so that the aim of reducing the thunderstorm system is fulfilled.
Atmospheric motion is low-speed motion and explosion is high-speed motion. What are the mechanisms and roles of their interactions? The energy released by explosion or supersonic flight is finally given to the atmosphere in terms of energy, and the generated shock waves, sound waves and gravity waves are propagated in four directions, and some waves can reach a place far from the explosion point, but the main energy component is air flow disturbance induced by explosion or high-speed flight.
Taking dynamic explosion as an example, dynamic equivalent pressure field (abbreviated as dynamic field or disturbance field) formed by explosion is three-dimensional. For ease of understanding, the x-z profile is first seen. The local strong dynamic field (or disturbance field) should be strong in center and weaken with increasing distance, and the stress field characteristics formed by the local strong dynamic field (or disturbance field) are shown in fig. 4 and 5. It can be seen from the sign of the Reynolds stress term, that is, from the direction of the change of the Reynolds stress to the background flow velocity, the effect is accelerated in the first quadrant pair u and w, and decelerated in the third quadrant; the second, four quadrants are acceleration and deceleration, see fig. 4. The effect of the reynolds stress field on the background flow is significantly non-uniform and asymmetric. The effect of the reynolds stress field on the background flow caused by the symmetrically distributed disturbance intensity field is push-pull distortion, see fig. 5. The Reynolds stress field can be developed with reference to the characteristic of the dynamic (or perturbation) field created by the explosion. The quasi-disturbance field of point explosion is three-dimensional sphere or two-dimensional circle, and set off firecrackers is many bullets and many bullets are shot together, and the point of impact has a dispersion point source disturbance which can become a body source disturbance, so that some central intensities are enhanced and some influence scales are enlarged in the process. Reference is made to the reynolds equation for the interaction of the disturbance field with the elementary streams in the turbulence study:
Where the amount of the band' "is the amount of the disturbance field to distinguish from the amount of the elementary stream, ρ a is the air density. The first term is a local time variation term; the third term is the air pressure gradient force term; the fourth term is a molecular viscosity term; the fifth term is the disturbance velocity stress term, Is reynolds stress; the sixth term is gravity and loadForce term, taken zero when i+.3, taken 1 when i=3. Attention is now directed to the fifth itemEffects of the pair。
In the case of a 60g passivated black soldier explosive, which is concentrated within the explosion point 100m, these dynamic (or perturbative) equivalent pressure field energies are primarily from the explosion energy, which can also develop due to instability of the motion from external perturbations or the inherent randomness of the flow, which can also be diverted from the base flow, and thus the energy of the perturbed gas flow can be substantial. Here we take the average magnitude of 25m 2/s2, i.e. [ u '] and [ w' ] to be 5.0m/s (7 m/s for observations in the convective cloud, larger for laboratory). Such a [ u 'w' ] field, centered around the burst point, whose intensity decreases rapidly to the surroundings, can act quite strongly with the elementary stream.
Taking test as an example, at A1, the manual intervention is carried out on the fire line strong thunderstorm system by adopting a high-energy catalysis mode. A2 The ground S wave band double-polarization radar and FY-4A satellite monitoring shows that the A3 mountain area has a line to move towards the A1 direction, the lightning frequency 1S can reach 10-20 times, the maximum lightning peak current can reach-158.5 KA, and the system is a high-grade thunderstorm system. The whole lightning storm system moves from the southwest to the northeast, the moving speed is 25-40 km/h, and the ground A1 is influenced at about 15 hours. According to the effective protection distance, the intensity of the thunderstorm system, the moving direction and the moving speed, as shown in fig. 6, 4 defending lines are arranged in the vertical thunderstorm system moving direction, specifically: 1. a first line of defense operation site 1 and an operation site 2;2. a second defense line operation station 3, an operation station 4, an operation station 5, an operation station 6 and an operation station 7;3. a third line of defense work station 8, a work station 9, and a work station 10;4 fourth line of defense working stations 11 and 12. And respectively selecting proper operation time according to the intensity level and the development stage of the thunderstorm system and the distance from a single point. Both station 1 and station 2 begin to catalytically reduce nearby thunderstorm monomers at 15:22. Then, the second line of defense work stations 3, 4,5, 6, 7 start working, then the work stations 8, 9, 10 start working again, and finally the work stations 11 and 12 start working. The operating information of the abatement thunderstorm system by high energy catalytic operation is shown in table 1.
As can be seen from SCIT tracking the thunderstorm system cell and the site location of fig. 6, the thunderstorm cell M6 is located at the middle front protrusion of the paraline thunderstorm system, the thunderstorm cell B0 is located at the head location of the paraline thunderstorm system, where B0 is far from each site of A1, not within the protective range, and M6 is very close to the site, within its protective range. The radar tracking monitoring thunderstorm system data and flow field data are analyzed, a main inflow region exists in the thunderstorm single M6 flow field 4.5-6.5 km, the main horizontal inflow corresponds to the main updraft region on the vertical plane, a zero domain which is close to zero relative to the horizontal speed exists in the hollow, and the main inflow region below the zero domain is determined to be a proper catalytic position. The operation site 1 is commanded to emit the high-energy catalytic material along the elevation angle of 45-50 degrees, the azimuth angle of 225-270 degrees, and the operation site 2 is commanded to perform high-energy catalytic operation along the elevation angle of 46-55 degrees and the azimuth angle of 45-225 degrees. At 15:22, the operation site 2 of A1 is about 3km away from the thunderstorm monomer M6, and the operation is started within the protection range of the operation site 2, and the operation lasts for two minutes. According to the development of the thunderstorm system, the operation station 2 is subjected to multiple rounds of operation. Then, along with the movement of the thunderstorm system to the northeast direction, the second defense line operation stations 3-7 in the 15:23-15:45 period start high-energy catalysis operation successively, the third defense line operation stations 8-10 in the 15:56-16:08 period start high-energy catalysis successively, and finally the thunderstorm system moves to the fourth defense line operation station 11-12 zone, and operation starts successively at 16:14 and 16:37 respectively.
From the horizontal echo and vertical profile evolution of the radar before and after the high energy catalysis of the thunderstorm system M6 monomer by the operation station 2 in FIG. 7, the X-band radar of 15:22 A1 directs the operation of two operation points of the operation station 1 and the operation station 2. Within 4min after the operation of the operation station 3, the echo is obviously weakened, the internal splitting of the echo is mainly shown, the central strength is obviously weakened, and the area of the strong echo is obviously reduced.
As can be seen from the SCIT monomer trace of fig. 8, which was not interfered with and interfered with the evolution trend of the thunderstorm system monomer, the line strong thunderstorm system head was generated when there was a thunderstorm monomer B0 activity, 14:06, and since there was no manual intervention, the life history was maintained for 198min (33 individual sweeps), finally the dissipation was reduced at 16:18, whereas the manually interfered thunderstorm monomer M6 was manually interfered with for two continuous minutes by a high energy catalytic manner of 15:22-15:24, and the reflectance factor was rapidly decreased, and was reduced after 12 minutes, i.e., 15:36, and only 12 minutes was maintained after the catalytic operation.
From fig. 9, it can be seen that the evolution trend of the original lightning peak current and the lightning peak current within the protection range of 2-3 km shows that the lightning peak current is greatly reduced in the protection range of the high-energy catalysis mode of loading 60g of passivated black cable gold explosive, and the lightning peak current is reduced from 98.7KA to 7.9KA and up to 92% after 4 rounds of high-energy catalysis operation, so that the disaster risk of a thunderstorm system is greatly reduced.
At present, no method for reducing the thunderstorm system based on a high-energy catalysis mode is searched, the manual intervention mode is utilized to reduce the damage of the thunderstorm system to electric facilities, forests, personal safety, buildings and the like in strong convection weather accompanied by lightning stroke, lightning, strong wind, hail and strong precipitation, improve the capability of resisting the thunderstorm system and reduce the disaster risk of the thunderstorm system.
Claims (10)
1. A method for reducing a thunderstorm system based on a high-energy catalytic mode, which is characterized by comprising the following steps:
s1, judging the occurrence position, strength, moving path and moving speed of a thunderstorm system by utilizing satellite and radar data;
s2, on the moving path of the thunderstorm system, the effective high-energy catalysis protection distance is met, a plurality of defense lines are set according to the moving speed, and proper catalysis time for reducing the thunderstorm system is selected;
s3, identifying a proper catalytic part in the thunderstorm system;
And S4, carrying a proper high-energy catalytic material into the thunderstorm system by using a power device, and forming a dynamic equivalent pressure field around the explosion point by using the high-energy catalytic effect including shock waves, sound waves and disturbance airflow fields generated by power explosion, wherein the pressure gradient force generated by the shock waves of the explosion plays a role in braking the rising airflow of the thunderstorm system, and the shock waves convert energy into airflow disturbance energy in dissipation to form the disturbance airflow field with a strong gradient, so that the effect of reducing the thunderstorm system is achieved.
2. The method of high energy catalytic based abatement of a thunderstorm system as claimed in claim 1 wherein step S1 comprises:
S1.1, judging the occurrence position of a thunderstorm system by utilizing satellite and radar data;
s1.2, judging the intensity level of the thunderstorm system according to the characteristic and the threshold of the thunderstorm system in satellite data and radar data;
s1.3, continuously tracking a thunderstorm system by utilizing satellite and radar data, and determining a moving path and a moving speed of the thunderstorm system;
s1.4, the occurrence position, strength, moving path and moving speed of the thunderstorm system are obtained after processing according to the steps S1.1, S1.2 and S1.3.
3. The method of high energy catalytic based abatement of a thunderstorm system as claimed in claim 2 wherein step S2 comprises:
S2.1, determining a single-point single-time high-energy protection effective distance R1 according to multiple protection effect statistics;
S2.2, setting 2-5 defense lines according to the moving speed V of the thunderstorm system, comparing R2 with R1 at intervals of 5min, and setting the defense lines;
(1) If R1 is more than or equal to R2, setting a defense line at the distance of R2;
(2) If R1 is less than R2, setting a defense line with the distance of R1;
s2.3, selecting proper operation time according to the intensity level and the development stage of the thunderstorm system.
4. A method of high energy catalytic based abatement of a thunderstorm system as claimed in claim 3 wherein step S3 comprises:
S3.1, a main inflow region exists in the flow field of the thunderstorm system, the main horizontal inflow corresponds to the main updraft region on the vertical plane, and a zero region with the relative horizontal velocity close to zero exists in the hollow; analyzing radar tracking monitoring thunderstorm system data and flow field data, and finding out an area where a zero domain is located;
And S3.2, determining a main inflow region below a zero region as a proper catalytic site.
5. The method of high energy catalytic based abatement of a thunderstorm system as set forth in claim 4 wherein step S4 comprises:
s4.1, utilizing a power device to bring a proper high-energy catalytic material into the thunderstorm system;
S4.2, forming dynamic equivalent pressure field around the explosion point of the high-energy catalytic material, wherein the pressure gradient force generated by the explosion shock wave has a braking effect on the ascending air flow of the thunderstorm system; the dynamic explosion also generates sound waves, and the shock waves decay into sound waves; the shock wave converts energy into air flow disturbance energy in dissipation to form a disturbance air flow field with strong gradient; the impact wave, sound wave and disturbance airflow field generated by dynamic explosion can reduce thunderstorm system.
6. The method of claim 1, wherein in step S4 the power means is an antiaircraft gun or rocket gun or flame projectile launcher.
7. The method for reducing a thunderstorm system as claimed in claim 5 wherein said action of said dynamic explosion on said thunderstorm system in step S4.2 is rapid and said action on said thunderstorm system is completed within 5 minutes after said explosion;
The method comprises the steps of loading 60g of passivated black ropes Jin Zhayao according to each high-energy catalytic material, estimating that at a position 100m away from a explosion point, the overpressure of a shock wave is reduced to 1g/cm 2, and the explosion energy is concentrated within 100m from the explosion point no matter whether the energy is wave state energy or non-wave state energy;
in the step S4, for high-energy catalytic power explosion, the pressure gradient force generated by the shock wave of the high-energy catalytic power explosion plays a role in braking the airflow, and the ascending airflow of 3-8 m/S is braked to zero;
in step S4, for high-energy catalytic power explosion, the high-energy catalytic power explosion is concentrated within 100m of the explosion point, and the disturbance energy mainly comes from explosion energy, and the maximum value of the disturbance energy is 25m 2/S2, namely the average magnitude of the disturbance is 5m/S.
8. The method for reducing a thunderstorm system based on a high energy catalysis mode according to claim 1, wherein in step S4, the thunderstorm system is reduced, the intensity of the thunderstorm system is reduced, the thunderstorm system splits, the echo collapse peak becomes low, the intensity of the generated thunder becomes weak, and the frequency becomes low; the time interval for the abatement of the thunderstorm system is 5-10 minutes.
9. The method of high energy catalytic based abatement of a thunderstorm system as set forth in claim 5 wherein said high energy catalytic material explosion point of step S4.2 comprises: after the power device emits the high-energy catalytic material, the high-energy catalytic material fuze is ignited to generate a power explosion position.
10. The method for reducing the thunderstorm system based on the high-energy catalysis mode according to claim 1, wherein the high-energy catalysis material with silver iodide is emitted to a proper position on a moving path and inside the thunderstorm system according to the reduction difficulty of the thunderstorm system, and the high-energy catalysis and the traditional catalyst work together, so that the aim of reducing the thunderstorm system is achieved.
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