CN103901505A - Cloud top height detection method and device based on wet bulb effect - Google Patents
Cloud top height detection method and device based on wet bulb effect Download PDFInfo
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- CN103901505A CN103901505A CN201410088025.1A CN201410088025A CN103901505A CN 103901505 A CN103901505 A CN 103901505A CN 201410088025 A CN201410088025 A CN 201410088025A CN 103901505 A CN103901505 A CN 103901505A
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Abstract
The invention provides a cloud top height detection method and device based on the wet bulb effect. The detection method includes the steps that a sonde is lifted, and the sonde is made to go upwards to pass through a cloud layer; a first temperature element and a second temperature element arranged on the sonde are used for collecting temperature data, the first temperature element is the temperature element with the surface not absorbing moisture, and the second temperature element is the temperature element with the surface absorbing moisture; a time point for generating the wet bulb effect is determined according to the temperature data, and the height of the sonde at the time point for generating the wet bulb effect is recorded as the height of a cloud top. According to the cloud top height detection method, data obtained by the wireless sonde in the cloud passing process can be used for automatically judging the height of the cloud top, and a new method and a new approach are provided for cloud height judging and studying.
Description
Technical field
The present invention relates to aerological sounding field, relate in particular to a kind of cloud-top height detection method and device based on wet bulb effect.
Background technology
Cloud is to float on little water droplet in atmosphere or the visible condensate of ice crystal particulate, (or sublimating) phenomenon that to be that steam is aerial condense.In the physical processes such as weather system development, precipitation formation and atmosphere radiation transmission, cloud is all being played the part of extremely important role, so the measurement of the various parameters to cloud is extremely important.And the cloud level is as important cloud macroscopic view physical characteristic parameter, air quality, percentage of possible sunshine, atmosphere radiation transmission, boundary layer turbulence and flight safety are had to important impact, be also the important factor in diagnostic analysis.
Cloud level information generally comprises the measurement data to the height of cloud base and cloud-top height.Ground is measured instrument and the mode of the height of cloud base to be had a lot, for example ceiling balloon, and it rises to the time that cloud base experiences and measures the height of cloud base from ground by balloon; For example lamps behind a curtain and rotary light beam ceilometer again, its range measurement principle is to utilize given data to obtain the height of cloud base of zenith direction according to the corner relation of right-angle triangle; For example laser radar or Laser-ceilometer again, it adopts laser vertical upwards to observe, and is received in the backscatter signal of the boundary generation of cloud, by analyzing the variation of return laser beam, differentiates position, cloud base; In addition, the cloud scope of Ins Atmospheric Physics,Academia Sinica's development adopts infrared radiometer to scan and obtain the bright temperature in cloud base all-sky, and then inverting obtains the height of cloud base.Except several metering systems of above introduction, also have a kind of more accurate direct observation method, directly observe by aircraft exactly, but cost is too high, be difficult to provide long-continued cloud boundary information.
For the measurement on cloud top, mainly remote sensing via satellite at present, carrys out Retrieval of Cloud heights of roofs according to its bright temperature value, because the optics of cloud blocks, at night or have height, medium cloud to cover in the situation that, in, low cloud layer is difficult to obtain accurate result; The another kind of mode of measuring cloud top is by millimeter wave cloud detection radar, it has wider doppler bandwidth, good directionality, affected by ground clutter less, can penetrate thicker low clouds, and can detect quite most middle and high stratus, obtain corresponding cloud top, end height by inverting, its topmost problem is exactly that precipitation is serious to electromagnetic decay, thereby is mainly used to survey the ceiling of clouds, the thickness that do not form precipitation.Due to current detecting devices some shortcomings separately, therefore these equipment also fail to be widely used in business.
In addition, as conventional meteorological observation means, radiosonde is widely used in obtaining of atmospheric parameter, and the vertical distribution data of temperature, relative humidity and the air pressure of its measurement is the basic data of research atmospheric thermodynamics and dynamic process.The technical development of China's sounding is rapid in recent years, radiosonde detection system (comprises temperature, air pressure, humidity inductive element, sounding data process software) also update, data sampling rate is brought up to a second level by a minute level, corresponding sampled point vertical separation is brought up to 10 meters of magnitudes by 50 meters of magnitudes, can obtain more temperature, humidity in sonde rising path and change details.Therefore, along with the raising of upper air observation automaticity, the weather information (particularly cloud level information) of obtaining from conventional Sounding Data, can provide more important scientific basis for the research of numerical forecasting, atmospheric remote sensing, physics of clound and fog, weather modification etc.Radiosonde can pass cloud layer in uphill process, can go out according to the mutation analysis of relative humidity profile Sounding Data the vertical distribution (comprising cloud top, the height of cloud base, cloud thickness, and the vertical distribution of multi layer cloud) of cloud from theory.In view of utilizing the variation of humidity in conventional Sounding Data to carry out the cloud level to sentence the feasibility of knowledge, researchist constantly explores the method for utilizing Sounding Data to judge cloud top and the height of cloud base both at home and abroad.But the measuring error of sonde humidity element is also larger at present, what the actual relative humidity recording had in the clouds exceedes 100%, what have is less than 95%, if judged whether that with concrete numerical value such as relative humidity 100% or 95% cloud layer exists, will inevitably there is the erroneous judgement of some in its result.Aerial at height in addition, humidity is not to form the unique conditional of cloud, reaches 90% when above in relative humidity, if other condition does not meet, may not form cloud yet.Therefore, only rely on relative humidity that sonde records to carry out cloud layer judgement and also have larger error.
Summary of the invention
The object of the invention is to provide a kind of cloud-top height detection method and device based on wet bulb effect, can utilize and wear the data automatic discrimination cloud-top height that in cloud process, wireless sonde obtains.
Further object of the present invention is will judge research for the cloud level to provide new method and new way.
To achieve these goals, the invention provides a kind of cloud-top height detection method based on wet bulb effect, comprising:
Rise sonde, make sonde upwards pass through cloud layer;
By being arranged on the first temperature element (TE) and the second temperature element (TE) collecting temperature data on described sonde, described the first temperature element (TE) is surperficial nonhygroscopic temperature element (TE), the temperature element (TE) that described the second temperature element (TE) is surperficial moisture absorption;
The time point of confirming to produce wet bulb effect according to described temperature data is cloud-top height by the altitude record of the described sonde of the time point of described generation wet bulb effect.
Optionally, in above-mentioned cloud-top height detection method, confirm that according to described temperature data the step of the time point that produces wet bulb effect specifically comprises:
Obtain the first temperature value of described the first temperature element (TE) collection and second temperature value of described the second temperature element (TE) collection of synchronization, calculate the difference of described the first temperature value and described the second temperature value, record when corresponding difference initial time and difference reach predetermined threshold while there is difference corresponding difference confirm the moment;
Determine wet bulb effect region according to the temperature profile of the temperature profile of described the first temperature element (TE) collection, described the second temperature element (TE) collection and described difference confirmation moment, if described difference initial time is the starting point in described wet bulb effect region, confirm that described difference initial time is the time point of described generation wet bulb effect.
Optionally, in above-mentioned cloud-top height detection method, also comprise:
According to season parameter and geo-location parameter adjust described predetermined threshold.
Optionally, in above-mentioned cloud-top height detection method, the scope of described predetermined threshold is 0.5 to 4 degree Celsius.
The present invention also provides a kind of cloud-top height sniffer based on wet bulb effect, comprising:
Sonde, for upwards passing through cloud layer;
The first temperature element (TE), is the nonhygroscopic temperature element (TE) in surface, is arranged on described sonde;
The second temperature element (TE), is the temperature element (TE) of surperficial moisture absorption, is arranged on described sonde;
Processing unit, for: confirming to produce the time point of wet bulb effect according to the temperature data of described the first temperature element (TE) and described the second temperature element (TE) collection, is cloud-top height by the altitude record of the described sonde of the time point of described generation wet bulb effect.
Optionally, in above-mentioned cloud-top height sniffer, described processing unit comprises:
Computing unit, be used for: the first temperature value of described the first temperature element (TE) collection and the second temperature value of described the second temperature element (TE) collection that obtain synchronization, calculate the difference of described the first temperature value and described the second temperature value, record when corresponding difference initial time and difference reach predetermined threshold while there is difference corresponding difference confirm the moment;
Recognition and verification unit, be used for: determine wet bulb effect region according to the temperature profile of the temperature profile of described the first temperature element (TE) collection, described the second temperature element (TE) collection and described difference confirmation moment, if described difference initial time is the starting point in described wet bulb effect region, confirm that described difference initial time is the time point of described generation wet bulb effect.
Optionally, in above-mentioned cloud-top height sniffer, described processing unit also comprises:
Adjustment unit, for: according to season parameter and geo-location parameter adjust described predetermined threshold.
Optionally, in above-mentioned cloud-top height sniffer, the scope of described predetermined threshold is 0.5 to 4 degree Celsius.
Optionally, in above-mentioned cloud-top height sniffer, described temperature element (TE) is the pearl surface temperature sensor of aluminizing.
The embodiment of the present invention has following technique effect:
1) in the embodiment of the present invention, temperature element (TE) by the nonhygroscopic temperature element (TE) in surface and surperficial moisture absorption carries out temperature survey between sonde cloud, in the time arriving cloud top, because humidity changes in air, the metering result of two temperature element (TE)s will produce obvious difference because of " wet bulb effect ", can accurately judge the moment that arrives cloud top according to the initial time that occurs this difference, thereby obtain cloud-top height according to the sonde height that arrives the cloud top moment.Simple, data is obtained conveniently
2) embodiment of the present invention can be passed through Sounding Data relative humidity and temperature rising curve feature and cloud physics characteristic, obtain reliable cloud-top height data, enrich the information of Sounding Data, the particularly abundant relevant information about cloud, for the automatic Observation of the cloud level in weather service provides a kind of new thinking and solution.
3) sounding data be the most substantially, one of weather observation data the most widely, the application embodiment of the present invention can integrally be enriched the information of Sounding Data, improves the value of Sounding Data, social benefit is remarkable.
Accompanying drawing explanation
Hereinafter describe specific embodiments more of the present invention in detail in exemplary and nonrestrictive mode with reference to the accompanying drawings.In accompanying drawing, identical Reference numeral has indicated same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not draw in proportion.In accompanying drawing:
Fig. 1 is the flow chart of steps of the inventive method embodiment;
Fig. 2 is the humiture curve map of the sounding process of other method embodiment of the present invention;
Fig. 3 is the structural drawing of apparatus of the present invention embodiment.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with accompanying drawing, specific embodiment is described in detail.
Fig. 1 is the flow chart of steps of the inventive method embodiment, and as shown in Figure 1, the embodiment of the present invention provides a kind of cloud-top height detection method based on wet bulb effect, comprising:
Wherein, wet bulb effect typically refers to the refrigeration effect in water evaporates process, and ground observation psychrometer is applied exactly this principle and measured air humidity.Psychrometer is made up of two the same thermometers, and a mercury bulb is placed in air, i.e. dry bulb; Another mercury bag gauze, and the extended end of gauze is under water, i.e. wet bulb.Because water evaporates can be taken away heat, the temperature that wet bulb thermometer shows is just low than dry bulb thermometer, and Here it is " wet bulb effect ".Because evaporation of water amount is relevant with the humidity of air, the larger evaporation capacity of air humidity is less, and the heat of taking away is fewer, and wet and dry bulb temperature difference is less; The less evaporation capacity of air humidity is larger, and the heat of taking away is also larger, and wet-bulb depression is also just larger.So can reflect current air humidity situation by the Changing Pattern of wet-bulb depression.
Therefore, in the embodiment of the present invention, temperature element (TE)/sensor by the nonhygroscopic temperature element (TE)/sensor in surface and surperficial moisture absorption carries out temperature survey between sonde cloud, pass behind cloud top at sonde, because relative humidity diminishes suddenly in air, the metering result of two temperature element (TE)/sensors will produce obvious difference because of " wet bulb effect ", can accurately grasp according to the initial time of the amplitude of this difference and appearance " wet bulb effect " moment that arrives cloud top, thereby obtain cloud-top height according to the sonde height that arrives the cloud top moment.
Visible, the embodiment of the present invention can be obtained cloud-top height reliably, simple, and data is obtained conveniently, for the automatic Observation of the cloud level in weather service provides a kind of brand-new solution thinking and solution.
In one embodiment of the invention, confirm that according to described temperature data the step of the time point that produces wet bulb effect specifically comprises:
Obtain the first temperature value of described the first temperature element (TE) collection and second temperature value of described the second temperature element (TE) collection of synchronization, calculate the difference of described the first temperature value and described the second temperature value, record when corresponding difference initial time and difference reach predetermined threshold while there is difference corresponding difference confirm the moment;
Determine wet bulb effect region according to the temperature profile of the temperature profile of described the first temperature element (TE) collection, described the second temperature element (TE) collection and described difference confirmation moment, if described difference initial time is the starting point in described wet bulb effect region, confirm that described difference initial time is the time point of described generation wet bulb effect.
Certainly, can also adopt the method for simplification, need not confirm wet bulb effect region, occur as long as be engraved in when described difference is confirmed in the scheduled duration after described difference initial time, just can think that described difference initial time is the time point of described generation wet bulb effect.
Wherein, wet bulb effect region, refer at sonde through behind cloud top, the temperature profile of the second temperature element (TE) of the temperature profile of nonhygroscopic the first temperature element (TE) and moisture absorption is by overlapping to the process overlapping again that is separated to, and wet bulb effect region identifies as rectangular broken line frame in Fig. 2.By the graphical discernment in this wet bulb effect region, can avoid because humidity sensor damages and causes relative humidity error in data because freezing, thereby cause that the conventional rh value that utilizes judges the erroneous judgement of cloud top location method, makes the judgement of position, cloud top more accurate.
In one embodiment of the invention, the surface of the first temperature element (TE) is provided with water-proof coating.By being set, water-proof coating make the surface of the first temperature element (TE) non-hygroscopic.And the surface of the first temperature element (TE) can not process, it will be subject to the impact of humidity, certainly, in order to increase the sensitivity to humidity, the surface of the first temperature element (TE) can arrange hygroscopic material, for example gauze, and element surface is coated with white paint, increase surfaceness improves moisture sorption effect and so on, to increase comparison effect.
In one embodiment of the invention, the scope of predetermined threshold is 0.5 to 4 degree Celsius.Preferably, predetermined threshold is chosen as 2 degrees Celsius, because the temperature difference of two thermometers reaches 2 degrees Celsius, is just enough to get rid of the erroneous judgement possibility causing because of measuring error, can determine reliably and arrive cloud top.
It is pointed out that the value that predetermined threshold is not fixed, this will be depending on discharging the season of sonde, and therefore the position on cloud top and determining, in one embodiment of the invention, also comprises: according to season parameter and geo-location parameter adjust described predetermined threshold.
This be because: two temperature element (TE)s are going out behind cloud top, because wet bulb effect can produce temperature difference, this predetermined threshold will be depending on discharging the season of sonde, the position on cloud top and determining, if the individual example in Fig. 2 is exactly the example that Shanghai Summer discharges, surface temperature is high, cloud-top height is low, so the temperature difference that wet bulb effect produces is just larger, if winter the north, surface temperature is just lower, the temperature difference at cloud-top height place is just smaller, likely only have the several years at zero point, so the amplitude of temperature difference cannot specifically be determined.
For example, once the discharging in record of Shanxi on November 1st, 2013, wear after cloud temperature 1(water-proof coating) temperature is-8.94 ℃, temperature 2(is without water-proof coating) temperature is-9.7 ℃, two temperature difference maximum amplitudes are only 0.74 ℃.
Fig. 2 is the humiture curve map of the sounding process of other method embodiment of the present invention; Owing to not being coated with the sonde temperature element (TE) (the second temperature element (TE)) of water-proof coating, wear easily collecting water in cloud process, flying out behind cloud top, because surrounding air relative humidity reduces and causes water evaporates suddenly, cause temperature element (TE) cooling, its temperature recording there will be the conventional temperature element (TE) of unexpected ratio phenomenon on the low side, and the embodiment of the present invention utilizes this kind of phenomenon to differentiate cloud-top height.
As shown in Figure 2, be the humiture curve map of a sounding process, sonde carries two kinds of temperature element (TE)s (made the first temperature element (TE) of water-proof coating and do not made the second temperature element (TE) of water-proof coating).In figure, the temperature profile recording for sonde in the square frame of the left side, in the square frame of the right, it is relative humidity profile, the first temperature element (TE) that can see good water-proof effect on temperature profile figure records temperature has obvious difference with the temperature that the second temperature element (TE) of not making waterproof records in position, cloud top, do not make the temperature element (TE) that temperature that the temperature element (TE) of waterproof records is starkly lower than good water-proof effect and record temperature, then the two temperature is recovered consistent (wet bulb effect region as rectangular broken line frame in Fig. 2 identify) more gradually.
As shown in Figure 2: the position, cloud top of this sounding process record probably appears at the position that sonde discharges latter 350 seconds, can see from left figure sounding temperature curve: no matter whether temperature element (TE) does waterproof, all consistent downward trends that is of the temperature that records of its temperature element (TE) carrying after sonde discharges, be down to 12.5 ℃, subsequently, be not subject to the temperature that temperature element (TE) that in cloud, water droplet affects records to rise to 16 ℃ of left and right from 12.5 ℃ with water-proof coating, do not make the temperature element (TE) that temperature that the temperature element (TE) of water-proof coating records is starkly lower than good water-proof effect and record temperature, its temperature continues to reduce, by 12.5 ℃, be down to 10 ℃ of left and right, go up lentamente more subsequently, after 25 seconds, change consistent with the temperature profile recording with the temperature element (TE) of water-proof coating.Obviously see, sonde is in going out cloud, the temperature contrast that the temperature element (TE) of different preventing water treatment records is obvious, the temperature recording as water-proofing treatment there will be the temperature phenomenon on the low side recording than the temperature element (TE) with water-proof coating of routine, and in actual sounding process, the reference position that this phenomenon occurs and the position consistency on cloud top, so the embodiment of the present invention is just added a temperature element (TE) without water-proof coating and differentiates the method on cloud top on conventional weather service sonde based on this phenomenon proposition.
Fig. 3 is the structural drawing of apparatus of the present invention embodiment.As shown in Figure 3, the embodiment of the present invention provides a kind of cloud-top height sniffer based on wet bulb effect, comprising:
Sonde 210, for upwards passing through cloud layer;
The first temperature element (TE) 220, is the nonhygroscopic temperature element (TE) in surface, is arranged on described sonde;
The second temperature element (TE) 230, is the temperature element (TE) of surperficial moisture absorption, is arranged on described sonde;
Processing unit 240, for: confirming to produce the time point of wet bulb effect according to the temperature data of described the first temperature element (TE) and described the second temperature element (TE) collection, is cloud-top height by the altitude record of the described sonde of the time point of described generation wet bulb effect.
In another device embodiment of the present invention, described processing unit comprises:
Computing unit, be used for: the first temperature value of described the first temperature element (TE) collection and the second temperature value of described the second temperature element (TE) collection that obtain synchronization, calculate the difference of described the first temperature value and described the second temperature value, record when corresponding difference initial time and difference reach predetermined threshold while there is difference corresponding difference confirm the moment;
Recognition and verification unit, be used for: determine wet bulb effect region according to the temperature profile of the temperature profile of described the first temperature element (TE) collection, described the second temperature element (TE) collection and described difference confirmation moment, if described difference initial time is the starting point in described wet bulb effect region, confirm that described difference initial time is the time point of described generation wet bulb effect.
Of the present invention another device embodiment in, described processing unit also comprises: adjustment unit, for: according to season parameter and geo-location parameter adjust described predetermined threshold.
In another device embodiment of the present invention, the surface of the first temperature element (TE) is provided with water-proof coating.The scope of described predetermined threshold is 0.5 to 4 degree Celsius.Described temperature element (TE) is the pearl surface temperature sensor of aluminizing, and can certainly be any temperature sensor that can produce wet bulb effect.
In device embodiment of the present invention, can adopt the conventional sonde of using in weather service, comprise baroceptor, humidity sensor and the temperature sensor element with water-proof coating, to obtain temperature, pressure, the wet data in atmosphere, it is for fear of wet bulb effect that temperature element (TE) adds water-proof coating, to record atmospheric temperature accurately.Device embodiment of the present invention adds a temperature element (TE) without water-proof coating on conventional sonde basis, enter after cloud at sonde, without the temperature element (TE) surface meeting moisture absorption of water-proof coating, in the time that sonde leaves cloud layer, because surrounding air relative humidity reduces and causes water evaporates suddenly, its temperature can, suddenly than conventional (having water-proof coating) temperature element (TE) more (amplitude on the low side is relevant to the relative humidity height of the above air in cloud top) on the low side, then progressively approach again conventional temperature element (TE).Therefore, in the time that " wet bulb effect " occurs, sonde process must be the tip position of cloud layer.Apparatus of the present invention embodiment utilizes the special Changing Pattern of the measured temperature causing without " wet bulb effect " of water-proof coating temperature element (TE) to propose the new equipment that cloud-top height is differentiated.The criterion that the embodiment of the present invention is differentiated cloud top is without water-proof coating temperature element (TE) and the special change procedure that has water-proof coating temperature element (TE) temperature difference, it is irrelevant that the relative humidity of the cloud layer detecting with sonde is how many actually, also just avoided the error of conventional method of discrimination.There will be because " wet bulb effect " only goes out Yun Shicai at sonde, therefore can accurately judge cloud-top height.
As from the foregoing, the embodiment of the present invention has following advantage:
1) in the embodiment of the present invention, temperature element (TE)/sensor by the nonhygroscopic temperature element (TE)/sensor in surface and surperficial moisture absorption carries out temperature survey between sonde cloud, in the time arriving cloud top, because humidity changes in air, the metering result of two thermometers will produce obvious difference because of " wet bulb effect ", can accurately grasp according to the initial time of the amplitude of this difference and appearance the moment that arrives cloud top, thereby obtain cloud-top height according to the sonde height that arrives the cloud top moment.Simple, data is obtained conveniently
2) embodiment of the present invention can be passed through Sounding Data relative humidity and temperature rising curve feature and cloud physics characteristic, obtain reliable cloud-top height data, enrich the information of Sounding Data, the particularly abundant relevant information about cloud, for the automatic Observation of the cloud level in weather service provides a kind of new thinking and solution.
3) sounding data be the most substantially, one of weather observation data the most widely, the application embodiment of the present invention can integrally be enriched the information of Sounding Data, improves the value of Sounding Data, social benefit is remarkable.
So far, those skilled in the art will recognize that, illustrate and described of the present invention multiple exemplary embodiment although detailed herein, but, without departing from the spirit and scope of the present invention, still can directly determine or derive many other modification or the modification that meet the principle of the invention according to content disclosed by the invention.Therefore, scope of the present invention should be understood and regard as and cover all these other modification or modifications.
Claims (9)
1. the cloud-top height detection method based on wet bulb effect, comprising:
Rise sonde, make sonde upwards pass through cloud layer;
By being arranged on the first temperature element (TE) and the second temperature element (TE) collecting temperature data on described sonde, described the first temperature element (TE) is surperficial nonhygroscopic temperature element (TE), the temperature element (TE) that described the second temperature element (TE) is surperficial moisture absorption;
The time point of confirming to produce wet bulb effect according to described temperature data is cloud-top height by the altitude record of the described sonde of the time point of described generation wet bulb effect.
2. cloud-top height detection method according to claim 1, is characterized in that, confirms that the step of the time point that produces wet bulb effect specifically comprises according to described temperature data:
Obtain the first temperature value of described the first temperature element (TE) collection and second temperature value of described the second temperature element (TE) collection of synchronization, calculate the difference of described the first temperature value and described the second temperature value, record when corresponding difference initial time and difference reach predetermined threshold while there is difference corresponding difference confirm the moment;
Determine wet bulb effect region according to the temperature profile of the temperature profile of described the first temperature element (TE) collection, described the second temperature element (TE) collection and described difference confirmation moment, if described difference initial time is the starting point in described wet bulb effect region, confirm that described difference initial time is the time point of described generation wet bulb effect.
3. cloud-top height detection method according to claim 2, is characterized in that, also comprises:
According to season parameter and geo-location parameter adjust described predetermined threshold.
4. cloud-top height detection method according to claim 3, is characterized in that, the scope of described predetermined threshold is 0.5 to 4 degree Celsius.
5. the cloud-top height sniffer based on wet bulb effect, is characterized in that, comprising:
Sonde, for upwards passing through cloud layer;
The first temperature element (TE), is the nonhygroscopic temperature element (TE) in surface, is arranged on described sonde;
The second temperature element (TE), is the temperature element (TE) of surperficial moisture absorption, is arranged on described sonde;
Processing unit, for: confirming to produce the time point of wet bulb effect according to the temperature data of described the first temperature element (TE) and described the second temperature element (TE) collection, is cloud-top height by the altitude record of the described sonde of the time point of described generation wet bulb effect.
6. cloud-top height sniffer according to claim 5, is characterized in that, described processing unit comprises:
Computing unit, be used for: the first temperature value of described the first temperature element (TE) collection and the second temperature value of described the second temperature element (TE) collection that obtain synchronization, calculate the difference of described the first temperature value and described the second temperature value, record when corresponding difference initial time and difference reach predetermined threshold while there is difference corresponding difference confirm the moment;
Recognition and verification unit, be used for: determine wet bulb effect region according to the temperature profile of the temperature profile of described the first temperature element (TE) collection, described the second temperature element (TE) collection and described difference confirmation moment, if described difference initial time is the starting point in described wet bulb effect region, confirm that described difference initial time is the time point of described generation wet bulb effect.
7. cloud-top height sniffer according to claim 6, is characterized in that, described processing unit also comprises:
Adjustment unit, for: according to season parameter and geo-location parameter adjust described predetermined threshold.
8. cloud-top height sniffer according to claim 7, is characterized in that, the scope of described predetermined threshold is 0.5 to 4 degree Celsius.
9. cloud-top height sniffer according to claim 7, is characterized in that, described temperature element (TE) is the pearl surface temperature sensor of aluminizing.
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| CN106772697A (en) * | 2016-11-21 | 2017-05-31 | 元江哈尼族彝族傣族自治县气象局 | Sea of clouds natural landscape forecasting procedure and system |
| CN109490891A (en) * | 2018-11-23 | 2019-03-19 | 四川省气象探测数据中心 | Secondary cloud data capture method, device and cloud parameter calculate equipment |
| CN111366930A (en) * | 2020-03-09 | 2020-07-03 | 上海眼控科技股份有限公司 | Cloud top height verification method and device, computer equipment and storage medium |
| CN111856620A (en) * | 2020-07-03 | 2020-10-30 | 上海眼控科技股份有限公司 | Method and equipment for determining cloud top height and cloud bottom height |
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