CN103901505B - A kind of cloud-top height detection method based on wet bulb effect and device - Google Patents
A kind of cloud-top height detection method based on wet bulb effect and device Download PDFInfo
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Abstract
The present invention provides a kind of cloud-top height detection method based on wet bulb effect and device, and detection method includes: rises sonde, makes sonde upwards pass through cloud layer；By being arranged on the first temperature element (TE on described sonde and the second temperature element (TE collecting temperature data, described first temperature element (TE is the nonhygroscopic temperature element (TE in surface, and described second temperature element (TE is the temperature element (TE of surface moisture absorption；Confirm the time point producing wet bulb effect according to described temperature data, be cloud-top height by the altitude record of the described sonde of the time point of described generation wet bulb effect.The present invention can utilize and wear the data automatic discrimination cloud-top height that in cloud process, wireless sonde obtains, and judges that research provides new method and new way for the cloud level.
Description
Technical field
The present invention relates to meteorological detection field, particularly relate to a kind of cloud-top height detection method based on wet bulb effect and device.
Background technology
Cloud is the visible polymer floating on little water droplet or ice crystal microgranule in air, is steam aerial condensation (or sublimating) phenomenon.In the physical processes such as weather system development, precipitation formation and atmospheric radiative transfer, cloud all plays extremely important role, thus the measurement of the various parameters of cloud is extremely important.And the cloud level is as important cloud Macroscopic physical characteristic parameter, air quality, percentage of possible sunshine, atmospheric radiative transfer, boundary layer turbulence and flight safety are suffered from 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.The instrument of the height of cloud base measured by ground and mode has a lot, for instance ceiling balloon, and it rises to, by balloon, the time that cloud base experiences and measures the height of cloud base from ground；Such as 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 angled triangle；Such as laser radar or Laser-ceilometer again, it adopts laser vertical upwards to observe, and receives the backscatter signal produced at the boundary of cloud, by the change of analysis return laser beam, it determines position, cloud base；Additionally, the cloud scope that Ins Atmospheric Physics,Academia Sinica develops adopts infrared radiometer to be scanned all-sky obtaining the bright temperature in cloud base, and then inverting obtains the height of cloud base.Except several metering systems described above, also has a kind of more accurate direct observation method, it is simply that directly observed by aircraft, but cost is too high, it is difficult to long-continued cloud boundary information is provided.
For the measurement on cloud top, currently mainly by satellite remote sensing, carry out Retrieval of Cloud heights of roofs according to its bright temperature value, due to the optical block of cloud, when at night or when having height, medium cloud to cover, in, low cloud layer is difficult to obtain accurate result；The another kind of mode measuring cloud top is by millimeter wave cloud detection radar, it has wider doppler bandwidth, good directionality, affected less by ground clutter, thicker low clouds can be penetrated, and considerable fraction of middle and high stratus can be detected, obtain corresponding cloud top, end height by inverting, its topmost problem is exactly precipitation, and electromagnetic decay is serious, thus is mainly used to detect and does not form the ceiling of clouds of precipitation, thickness.Due to the current respective some shortcomings of detecting devices, therefore these equipment also fail to be widely used in business.
Additionally, as conventional meteorological observation means, radiosonde is widely used in the acquisition of atmospheric parameter, the vertical distribution data of the temperature of its measurement, relative humidity and air pressure 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 (includes temperature, air pressure, humidity inductive element, sounding data processes software) also update, data sampling rate is brought up to second level by a minute level, corresponding sampled point vertical separation is brought up to 10 meters of magnitudes by 50 meters of magnitudes, it is possible to obtain more epidemic disaster change details in sonde ascending path.Therefore, raising along with upper air observation automaticity, the weather information (particularly cloud level information) obtained from conventional Sounding Data, it is possible to the research for numerical forecast, atmospheric remote sensing, physics of clound and fog, weather modification etc. provides more important scientific basis.Radiosonde can pass cloud layer in uphill process, can go out the vertical distribution (including the vertical distribution of cloud top, the height of cloud base, cloud thickness, and multi layer cloud) of cloud according to the mutation analysis of relative humidity profile Sounding Data from theory.Sentencing the feasibility of knowledge in view of utilizing the change of humidity in conventional Sounding Data to carry out the cloud level, domestic and international research worker constantly explores the method utilizing Sounding Data to judge cloud top and the height of cloud base.But the measurement error of sonde humidity element is also relatively larger at present, relative humidity actually measured in the clouds have more than 100%, what have is less than 95%, if determining whether that cloud layer exists with concrete numerical value such as relative humiditys 100% or 95%, a number of erroneous judgement will necessarily occur in its result.Additionally aerial at height, humidity is not form the unique conditional of cloud, when relative humidity reaches more than 90%, if other condition is unsatisfactory for, it is also possible to be formed without cloud.Therefore, rely solely on the relative humidity that sonde records to judge to there is also bigger error to carry out cloud layer.
Summary of the invention
The invention aims to provide a kind of cloud-top height detection method based on wet bulb effect and device, it is possible to utilize and wear the data automatic discrimination cloud-top height that in cloud process, wireless sonde obtains.
The present invention one further objective is that and to judge that research provides new method and new way for the cloud level.
To achieve these goals, the invention provides a kind of cloud-top height detection method based on wet bulb effect, including:
Rise sonde, make sonde upwards pass through cloud layer；
By being arranged on the first temperature element (TE on described sonde and the second temperature element (TE collecting temperature data, described first temperature element (TE is the nonhygroscopic temperature element (TE in surface, and described second temperature element (TE is the temperature element (TE of surface moisture absorption；
Confirm the time point producing wet bulb effect according to described temperature data, be 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 the step producing the time point of wet bulb effect specifically includes according to described temperature data:
Obtain the second temperature value that the first temperature value of the described first temperature element (TE collection of synchronization gathers with described second temperature element (TE, calculating the difference of described first temperature value and described second temperature value, the difference initial time that record is corresponding when there is difference reaches difference corresponding during predetermined threshold and confirms the moment with difference；
Temperature profile according to described first temperature element (TE collection, the temperature profile of described second temperature element (TE collection and described difference confirm that the moment determines wet bulb effect region, if the starting point that described difference initial time is described wet bulb effect region, then confirm the time point that described difference initial time is described generation wet bulb effect.
Optionally, in above-mentioned cloud-top height detection method, also include:
According to season parameter and geo-location parameter adjust described predetermined threshold.
Optionally, in above-mentioned cloud-top height detection method, described predetermined threshold range for 0.5 to 4 degree Celsius.
The present invention also provides for a kind of cloud-top height based on wet bulb effect and detects device, including:
Sonde, for upwards passing through cloud layer；
First temperature element (TE, for the nonhygroscopic temperature element (TE in surface, is arranged on described sonde；
Second temperature element (TE, for the temperature element (TE of surface moisture absorption, is arranged on described sonde；
Processing unit, is used for: the time point according to the temperature data confirmation generation wet bulb effect that described first temperature element (TE and described second temperature element (TE gather, 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 device, described processing unit includes:
Computing unit, for: obtain the second temperature value that the first temperature value of the described first temperature element (TE collection of synchronization gathers with described second temperature element (TE, calculating the difference of described first temperature value and described second temperature value, the difference initial time that record is corresponding when there is difference reaches difference corresponding during predetermined threshold and confirms the moment with difference；
Recognition and verification unit, for: confirm that the moment determines wet bulb effect region according to the temperature profile of described first temperature element (TE collection, the temperature profile of described second temperature element (TE collection and described difference, if the starting point that described difference initial time is described wet bulb effect region, then confirm the time point that described difference initial time is described generation wet bulb effect.
Optionally, in above-mentioned cloud-top height detection device, described processing unit also includes:
Adjustment unit, is used for: according to season parameter and geo-location parameter adjust described predetermined threshold.
Optionally, in above-mentioned cloud-top height detection device, described predetermined threshold range for 0.5 to 4 degree Celsius.
Optionally, in above-mentioned cloud-top height detection device, described temperature element (TE is that beaded surface is aluminized temperature sensor.
The embodiment of the present invention has following technical effect that
1) in the embodiment of the present invention, temperature survey between sonde cloud is carried out by the temperature element (TE of the nonhygroscopic temperature element (TE in surface and surface moisture absorption, when arriving cloud top, because humidity change in air, the metric results of two temperature element (TEs will produce obvious difference because of " wet bulb effect ", the moment arriving cloud top can be accurately judged, thus obtaining cloud-top height according to the sonde height arriving the cloud top moment according to the initial time that this difference occurs.Simple, data obtains convenient
2) embodiment of the present invention can pass through Sounding Data relative humidity and temperature rising curve feature and cloud physics characteristic, obtain reliable cloud-top height data, the information of abundant Sounding Data, particularly the abundant relevant information about cloud, provides a kind of new thinking and solution for the automatic Observation of the cloud level in weather service.
3) sounding data is most basic, one of weather observation data the most widely, and the application embodiment of the present invention can integrally enrich the information of Sounding Data, and the value of raising Sounding Data, social benefit is notable.
Accompanying drawing explanation
Some specific embodiments of the present invention are hereinafter described in detail with reference to the accompanying drawings by way of example, and not by way of limitation.Accompanying drawing labelling identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that what these accompanying drawings were not necessarily drawn to scale.In accompanying drawing:
Fig. 1 is the flow chart of steps of the inventive method embodiment；
Fig. 2 is the humiture curve chart of the sounding process of other method embodiment of the present invention；
Fig. 3 is the structure chart of apparatus of the present invention embodiment.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearly, 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, as it is shown in figure 1, the embodiment of the present invention provides a kind of cloud-top height detection method based on wet bulb effect, including:
Step 110, rises sonde, makes sonde upwards pass through cloud layer；
Step 120, by being arranged on the first temperature element (TE on described sonde and the second temperature element (TE collecting temperature data, described first temperature element (TE is the nonhygroscopic thermometer elements in surface, and described second temperature element (TE is the thermometer elements of surface moisture absorption；
Step 130, confirms the time point producing wet bulb effect, is cloud-top height by the altitude record of the described sonde of the time point of described generation wet bulb effect according to described temperature data.
Wherein, wet bulb effect typically refers to the refrigeration effect in water evaporates process, and ground observation psychrometer is applied this principle exactly and measured air humidity.Psychrometer is made up of two the same thermometers, and a mercury ball is placed in air, i.e. dry bulb；Another mercury ball encloses gauze, and the extended end of gauze is soaked in water, i.e. wet bulb.Owing to water evaporates can take away heat, the temperature that wet bulb thermometer shows is just low than dry bulb thermometer, here it is " wet bulb effect ".Owing to evaporation of water amount is relevant with the humidity of air, the more big evaporation capacity of air humidity is more little, and the heat taken away is more few, and wet and dry bulb temperature difference is more little；The more little evaporation capacity of air humidity is more big, and the heat taken away is also more big, and wet-bulb depression is also more big.So present air humidity conditions can be reflected by the Changing Pattern of wet-bulb depression.
Therefore, in the embodiment of the present invention, temperature survey between sonde cloud is carried out by the temperature element (TE/sensor of the nonhygroscopic temperature element (TE/sensor in surface and surface moisture absorption, behind sonde traverse cloud top, because relative humidity diminishes suddenly in air, the metric results of two temperature element (TE/sensors will produce obvious difference because of " wet bulb effect ", amplitude and the initial time of appearance " wet bulb effect " according to this difference can accurately grasp the moment arriving cloud top, thus obtaining cloud-top height according to the sonde height arriving the cloud top moment.
Visible, the embodiment of the present invention can reliably obtain cloud-top height, simple, and data obtains convenient, provides a kind of brand-new resolving ideas and solution for the automatic Observation of the cloud level in weather service.
In one embodiment of the invention, confirm that the step producing the time point of wet bulb effect specifically includes according to described temperature data:
Obtain the second temperature value that the first temperature value of the described first temperature element (TE collection of synchronization gathers with described second temperature element (TE, calculating the difference of described first temperature value and described second temperature value, the difference initial time that record is corresponding when there is difference reaches difference corresponding during predetermined threshold and confirms the moment with difference；
Temperature profile according to described first temperature element (TE collection, the temperature profile of described second temperature element (TE collection and described difference confirm that the moment determines wet bulb effect region, if the starting point that described difference initial time is described wet bulb effect region, then confirm the time point that described difference initial time is described generation wet bulb effect.
It is, of course, also possible to adopt the method simplified, wet bulb effect region need not be confirmed, as long as being engraved in the scheduled duration after described difference initial time Nei appearance when described difference confirms, it is possible to think the time point that described difference initial time is described generation wet bulb effect.
Wherein, wet bulb effect region, refer to that the temperature profile of the temperature profile of nonhygroscopic first temperature element (TE and the second temperature element (TE of moisture absorption is by overlapping to the process overlapped again that is separated to, and in the such as Fig. 2 of wet bulb effect region, rectangular broken line frame is identified behind sonde traverse cloud top.Graphical discernment by this wet bulb effect region, can avoid because humidity sensor causes relative humidity data mistake because of icing damage, thus cause routine utilize rh value to judge the erroneous judgement of cloud top location method so that the judgement of position, cloud top is more accurate.
In one embodiment of the invention, the surface configuration of the first temperature element (TE has waterproof coating.Make the surface of the first temperature element (TE non-hygroscopic by arranging waterproof coating.And the surface of the first temperature element (TE can not process, it will be influenced by humidity, certainly, in order to increase the sensitivity to humidity, the surface of the first temperature element (TE can arrange hygroscopic material, for instance gauze, and element surface is coated with white paint, increase surface roughness and improve moisture sorption effect etc, in order to increase comparison effect.
In one embodiment of the invention, predetermined threshold range for 0.5 to 4 degree Celsius.Preferably, predetermined threshold is chosen as 2 degrees Celsius, because the temperature difference of two thermometeies reaches 2 degrees Celsius, is just enough to get rid of the erroneous judgement caused because of measurement error and is likely to, it is possible to determine reliably and have arrived at cloud top.
It is pointed out that the value that predetermined threshold is not fixed, this will depending on discharging the season of sonde, the position on cloud top and determine, therefore, in one embodiment of the invention, also include: according to season parameter and geo-location parameter adjust described predetermined threshold.
This is because: two temperature element (TEs are after going out cloud top, owing to wet bulb effect can produce temperature difference, this predetermined threshold will depending on discharging the season of sonde, the position on cloud top and determine, individual example in Fig. 2 is exactly the individual 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 relatively larger, if winter is northern, surface temperature is just relatively low, and the temperature difference at cloud-top height place is just smaller, likely only have the zero point several years, so the amplitude of temperature difference cannot specifically be determined.
Such as, on November 1st, 2013 Shanxi once discharge in record, after wearing cloud, temperature 1(waterproof coating) temperature is-8.94 DEG C, temperature 2(is without waterproof coating) temperature is-9.7 DEG C, two temperature difference maximum amplitudes are only 0.74 DEG C.
Fig. 2 is the humiture curve chart of the sounding process of other method embodiment of the present invention；Owing to being not coated with the sonde temperature element (TE (the second temperature element (TE) of waterproof coating, wear easily collecting water in cloud process, behind the cloud top that flies out, water evaporates is caused owing to surrounding air relative humidity reduces suddenly, temperature element (TE is caused to cool down, its temperature recorded there will be phenomenon more on the low side than ordinary temperature element suddenly, and the embodiment of the present invention utilizes this kind of phenomenon to differentiate cloud-top height.
As in figure 2 it is shown, be the humiture curve chart of a sounding process, sonde carries two kinds of temperature element (TEs (made the first temperature element (TE of waterproof coating and do not made the second temperature element (TE of waterproof coating).In figure, the temperature profile recorded for sonde in the square frame of the left side, it is relative humidity profile in the square frame of the right, it can be seen that the temperature that the first temperature element (TE of good water-proof effect records temperature to be recorded with the second temperature element (TE not making waterproof has obvious difference in position, cloud top on temperature profile figure, namely not making the temperature that the temperature element (TE of waterproof records and record temperature significantly lower than the temperature element (TE of good water-proof effect, then the two temperature is recovered consistent (in the such as Fig. 2 of wet bulb effect region, rectangular broken line frame is identified) more gradually.
As shown in Figure 2: the position, cloud top of this sounding process record probably occurs in sonde and discharges the position of latter 350 seconds, no matter can be seen that whether temperature element (TE does waterproof from left figure sounding temperature curve, sonde discharge after the temperature that records of its temperature element (TE carried all consistent in downward trend, it is down to 12.5 DEG C, subsequently, the temperature that the temperature element (TE not affected by water droplet in cloud with waterproof coating records rises to about 16 DEG C from 12.5 DEG C, do not make the temperature that the temperature element (TE of waterproof coating records and record temperature significantly lower than the temperature element (TE of good water-proof effect, its constant temperature reduces, by 12.5 DEG C, it is down to about 10 DEG C, go up lentamente more subsequently, changed consistent with the temperature profile that the temperature element (TE with waterproof coating records after 25 seconds.It is clearly visible, sonde is when going out cloud, the temperature contrast that the temperature element (TE of different water-proofing treatment records is obvious, the temperature recorded as water-proofing treatment there will be the phenomenon more on the low side than the temperature that the conventional temperature element (TE with waterproof coating records, and in actual sounding process, the original position of this phenomenon appearance and the position consistency on cloud top, so the embodiment of the present invention is based on this phenomenon and proposes to add the temperature element (TE without the waterproof coating method to differentiate cloud top on conventional weather service sonde.
Fig. 3 is the structure chart of apparatus of the present invention embodiment.As it is shown on figure 3, the embodiment of the present invention provides a kind of cloud-top height based on wet bulb effect to detect device, including:
Sonde 210, for upwards passing through cloud layer；
First temperature element (TE 220, for the nonhygroscopic temperature element (TE in surface, is arranged on described sonde；
Second temperature element (TE 230, for the temperature element (TE of surface moisture absorption, is arranged on described sonde；
Processing unit 240, is used for: the time point according to the temperature data confirmation generation wet bulb effect that described first temperature element (TE and described second temperature element (TE gather, 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 includes:
Computing unit, for: obtain the second temperature value that the first temperature value of the described first temperature element (TE collection of synchronization gathers with described second temperature element (TE, calculating the difference of described first temperature value and described second temperature value, the difference initial time that record is corresponding when there is difference reaches difference corresponding during predetermined threshold and confirms the moment with difference；
Recognition and verification unit, for: confirm that the moment determines wet bulb effect region according to the temperature profile of described first temperature element (TE collection, the temperature profile of described second temperature element (TE collection and described difference, if the starting point that described difference initial time is described wet bulb effect region, then confirm the time point that described difference initial time is described generation wet bulb effect.
In another device embodiment of the present invention, described processing unit also includes: adjustment unit, is used for: according to season parameter and geo-location parameter adjust described predetermined threshold.
In another device embodiment of the present invention, the surface configuration of the first temperature element (TE has waterproof coating.Described predetermined threshold range for 0.5 to 4 degree Celsius.Described temperature element (TE is that beaded surface is aluminized temperature sensor, naturally it is also possible to for any temperature sensor that can produce wet bulb effect.
In assembly of the invention embodiment, the conventional sonde in weather service can be adopted, including baroceptor, humidity sensor and the temperature sensor element with waterproof coating, to obtain temperature in air, pressure, wet data, it is in order to avoid wet bulb effect that temperature element (TE adds waterproof coating, to record atmospheric temperature accurately.Assembly of the invention embodiment is to add a temperature element (TE without waterproof coating on conventional sonde basis, after sonde enters cloud, temperature element (TE surface meeting moisture absorption without waterproof coating, when sonde leaves cloud layer, water evaporates is caused owing to surrounding air relative humidity reduces suddenly, its temperature can be more on the low side than conventional (having waterproof coating) temperature element (TE to more (amplitude on the low side is relevant to the relative humidity of cloud top air above height) suddenly, then again progressively close to ordinary temperature element.Therefore, when " wet bulb effect " occurs, sonde process must be the tip position of cloud layer.The special Changing Pattern that apparatus of the present invention embodiment is exactly the measured temperature utilizing " wet bulb effect " without waterproof coating temperature element (TE to cause proposes the new equipment that cloud-top height differentiates.The embodiment of the present invention differentiates that the criterion on cloud top is without waterproof coating temperature element (TE and the special change procedure having waterproof coating temperature element (TE temperature difference, how much unrelated the relative humidity of the cloud layer detected with sonde is actually, also avoids the error of conventional method of discrimination.There will be owing to " wet bulb effect " only goes out Yun Shicai at sonde, therefore, it is possible to accurately judge cloud-top height.
From the foregoing, it will be observed that the embodiment of the present invention has the advantage that
1) in the embodiment of the present invention, temperature survey between sonde cloud is carried out by the temperature element (TE/sensor of the nonhygroscopic temperature element (TE/sensor in surface and surface moisture absorption, when arriving cloud top, because humidity change in air, the metric results of two thermometeies will produce obvious difference because of " wet bulb effect ", amplitude and the initial time of appearance according to this difference can accurately grasp the moment arriving cloud top, thus obtaining cloud-top height according to the sonde height arriving the cloud top moment.Simple, data obtains convenient
2) embodiment of the present invention can pass through Sounding Data relative humidity and temperature rising curve feature and cloud physics characteristic, obtain reliable cloud-top height data, the information of abundant Sounding Data, particularly the abundant relevant information about cloud, provides a kind of new thinking and solution for the automatic Observation of the cloud level in weather service.
3) sounding data is most basic, one of weather observation data the most widely, and the application embodiment of the present invention can integrally enrich the information of Sounding Data, and the value of raising Sounding Data, social benefit is notable.
So far, those skilled in the art will recognize that, although the detailed multiple exemplary embodiments illustrate and describing the present invention herein, but, without departing from the spirit and scope of the present invention, still can directly determine according to present disclosure or derive other variations or modifications many meeting the principle of the invention.Therefore, the scope of the present invention is it is understood that cover all these other variations or modifications with regarding as.
Claims (6)
1. based on a cloud-top height detection method for wet bulb effect, including:
Rise sonde, make sonde upwards pass through cloud layer；
By being arranged on the first temperature element (TE on described sonde and the second temperature element (TE collecting temperature data, described first temperature element (TE is the nonhygroscopic temperature element (TE in surface, and described second temperature element (TE is the temperature element (TE of surface moisture absorption；
Confirm the time point producing wet bulb effect according to described temperature data, be cloud-top height by the altitude record of the described sonde of the time point of described generation wet bulb effect；
Wherein, confirm that the step producing the time point of wet bulb effect specifically includes according to described temperature data:
Obtain the second temperature value that the first temperature value of the described first temperature element (TE collection of synchronization gathers with described second temperature element (TE, calculating the difference of described first temperature value and described second temperature value, the difference initial time that record is corresponding when there is difference reaches difference corresponding during predetermined threshold and confirms the moment with difference；
Temperature profile according to described first temperature element (TE collection, the temperature profile of described second temperature element (TE collection and described difference confirm that the moment determines wet bulb effect region, if the starting point that described difference initial time is described wet bulb effect region, then confirm the time point that described difference initial time is described generation wet bulb effect.
2. cloud-top height detection method according to claim 1, it is characterised in that also include:
According to season parameter and geo-location parameter adjust described predetermined threshold.
3. cloud-top height detection method according to claim 2, it is characterised in that described predetermined threshold range for 0.5 to 4 degree Celsius.
4. the cloud-top height based on wet bulb effect detects device, it is characterised in that including:
Sonde, for upwards passing through cloud layer；
First temperature element (TE, for the nonhygroscopic temperature element (TE in surface, is arranged on described sonde；
Second temperature element (TE, for the temperature element (TE of surface moisture absorption, is arranged on described sonde；
Processing unit, is used for: the time point according to the temperature data confirmation generation wet bulb effect that described first temperature element (TE and described second temperature element (TE gather, is cloud-top height by the altitude record of the described sonde of the time point of described generation wet bulb effect；
Wherein, described processing unit includes:
Computing unit, for: obtain the second temperature value that the first temperature value of the described first temperature element (TE collection of synchronization gathers with described second temperature element (TE, calculating the difference of described first temperature value and described second temperature value, the difference initial time that record is corresponding when there is difference reaches difference corresponding during predetermined threshold and confirms the moment with difference；
Recognition and verification unit, for: confirm that the moment determines wet bulb effect region according to the temperature profile of described first temperature element (TE collection, the temperature profile of described second temperature element (TE collection and described difference, if the starting point that described difference initial time is described wet bulb effect region, then confirm the time point that described difference initial time is described generation wet bulb effect.
5. cloud-top height according to claim 4 detection device, it is characterised in that described processing unit also includes:
Adjustment unit, is used for: according to season parameter and geo-location parameter adjust described predetermined threshold.
6. cloud-top height according to claim 5 detection device, it is characterised in that described predetermined threshold range for 0.5 to 4 degree Celsius.
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| CN106772697B (en) * | 2016-11-21 | 2019-07-05 | 元江哈尼族彝族傣族自治县气象局 | Sea of clouds natural landscape forecasting procedure and system |
| CN109490891B (en) * | 2018-11-23 | 2023-03-31 | 四川省气象探测数据中心 | Secondary cloud data acquisition method and device and cloud parameter computing 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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| MODIS数据的云顶高度反演;林琳，黄思训，杜华栋;《地球信息科学》;20060630;第8卷(第2期);全文 * |
| 一种用来测量低层大气温湿结构的高精度探空仪;吴晓庆，曾宗泳，马成胜;《量子电子学报》;19990831;第16卷(第4期);第380页17-19行 * |
| 借用探空数据校对云高的分析;张玲，***，葛凡;《科技资讯》;20090103(第1期);第42页第2栏4-9行，第3栏7-11行、25-31行，图1和图2 * |
| 基于毫米波雷达、无线电掩盖星和探空仪资料的云边界高度对比研究;严卫，韩丁，赵现斌，周小珂;《地球物理学报》;20120731;第55卷(第7期);全文 * |
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| CN103901505A (en) | 2014-07-02 |
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