CN102183238A - Portable device for measuring height of atmospheric mixing layer in real time - Google Patents
Portable device for measuring height of atmospheric mixing layer in real time Download PDFInfo
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- CN102183238A CN102183238A CN2011100477854A CN201110047785A CN102183238A CN 102183238 A CN102183238 A CN 102183238A CN 2011100477854 A CN2011100477854 A CN 2011100477854A CN 201110047785 A CN201110047785 A CN 201110047785A CN 102183238 A CN102183238 A CN 102183238A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Abstract
The invention discloses a portable device for measuring a height of an atmospheric mixing layer in real time. A control machine case is mounted on a triangle fixing frame; a T-shaped support frame is vertically arranged on the control machine case; a wind direction detecting part and a wind speed detecting part of a wind direction and wind speed sensor are mounted on a left horizontal arm and a right horizontal arm of the support frame respectively; a solar radiation sensor is fixed on the top of a vertical support rod of the support frame; an environmental temperature and humidity sensor, an atmospheric pressure sensor and a dew point temperature sensor are mounted on a support plate projected out of the control machine case; and the solar radiation sensor, the wind direction and wind speed sensor, the environmental temperature and humidity sensor, the atmospheric pressure sensor, the dew point temperature sensor and a time signal generator, a data memory, a keystroke and a display are all connected with a digital signal processor. By the portable device for measuring the height of the atmospheric mixing layer in real time, the height of the atmospheric mixing layer can be calculated simply, quickly and accurately.
Description
Technical field
The present invention relates to a kind of mancarried device of real-time measurement atmospheric mixed layer height.
Background technology
Atmospheric mixed layer not only has directly and confidential relation with the people, and with the earth on nearly all biology all have direct and close getting in touch because all exchange process between the ground and the water surface and atmosphere (comprising exchange heat, energy exchange and mass exchange etc.) all carry out in atmospheric mixed layer.In addition, because the air in the atmospheric mixed layer is the gas that people directly breathe, so the characteristic of atmospheric mixed layer often is people's Focal Point of Common Attention.The atmospheric mixed layer height is one of most important characteristic of atmospheric mixed layer, and it is meant atmosphere pollution and Atmospheric components because hot buoyancy lift or mechanical force turbulent flow and the abundant mixed process height near the ground that can reach.The atmospheric mixed layer height is being controlled the transmission and the diffusion of city heat and pollutant, and is determining the vertical height that the atmosphere pollution diffusion can reach.The atmospheric mixed layer height still is the necessary input parameters of many atmospheric pollution modes, and its variation can influence tropical island effect, atmospheric pollution level and the long-term climate change in city significantly.Therefore, heightened awareness atmospheric mixed layer height is all significant for environmental monitoring, atmosphere pollution prediction and weather forecast.
It has most important effect for understanding accurately to measure the atmospheric mixed layer height, but the unified approach of the direct measurement atmospheric mixed layer height of still extensively not approved so far in the world.Measurement atmospheric mixed layer height method commonly used now has the indirect method of measurement and theoretical shape parameter model, but these methods and modular concept complexity, and the practical operation difficulty all is difficult to obtain in real time accurate atmospheric mixed layer altitude information.The atmospheric mixed layer height indirect method of measurement comprises radiosondage method and distant radar detection method, its shortcoming be measure waste time and energy, complicated operation, easily affected by environment and measuring error is big.Theoretical shape parameter model needs the real-time meteorologic parameters such as resistance speed, cloud amount and altitude of the sun of observation station usually, and these meteorologic parameters are very difficult to obtain, and have only large-scale weather station just can provide; In addition, theoretical shape parameter Model Calculation more complicated, influence factor is more, and the error of calculation is big, is difficult to promote the use of.This shows that existing method and technique device are difficult to obtain in real time accurate atmospheric mixed layer height number.
Summary of the invention
Technical matters to be solved by this invention is the mancarried device that proposes a kind of real-time measurement atmospheric mixed layer height, and this mancarried device of measuring the atmospheric mixed layer height in real time can calculate the atmospheric mixed layer height simply, fast and accurately.
Technical solution of the present invention is as follows:
A kind of mancarried device of real-time measurement atmospheric mixed layer height, the control cabinet is installed on three corner steadies, vertically be provided with the bracing frame of T shape on the control cabinet, the wind direction test section of wind direction and wind velocity sensor and wind speed test section be installed in respectively bracing frame about on 2 horizontal arms, solar radiation sensor is fixed on the top of the vertical pole of bracing frame;
Ambient temperature and humidity sensor, barometric pressure sensor and dew point temperature sensor are installed on the back up pad of stretching out control cabinet outside;
Be provided with digital signal processor, time signal generator and data-carrier store in the control cabinet, the control cabinet is provided with display screen and button;
Solar radiation sensor, wind direction and wind velocity sensor, ambient temperature and humidity sensor, barometric pressure sensor, dew point temperature sensor and time signal generator, data-carrier store, button and display screen all join with digital signal processor.
Described digital signal processor has and is used for the computing unit that detected value and following formula according to current each sensor calculate the atmospheric mixed layer height value:
MLH=a
1T+a
2P+a
3SR+a
4RH+a
5WS+a
6DT calculates the predicted value of the atmospheric mixed layer height in this city; MLH in the formula is the atmospheric mixed layer height;
A in the formula
1～a
6Be regression coefficient, regression coefficient is learned the multiple linear regression analysis method acquisition by statistics by the weather data and the historical atmospheric mixed layer height of history; T is an air themperature, and P is that atmospheric pressure, SR are solar radiation value, and RH is an air humidity, and WS is that wind speed, DT are dewpoint temperature.
Back up pad is provided with the protective cover that is used to cover ambient temperature and humidity sensor, barometric pressure sensor and dew point temperature sensor;
Three corner steadies are provided with the screw that is used for three corner steadies are fixed on ground.
The control cabinet back side is provided with the ventilating opening of venetian blind type.
Beneficial effect:
The simple ground of the usefulness meteorologic parameter that the mancarried device of real-time measurement atmospheric mixed layer height of the present invention draws based on existing research is predicted the method for atmospheric mixed layer height, a kind of mancarried device of real-time measurement atmospheric mixed layer height is provided, the product that selected device all is low-power consumption, volume is little, be easy to be incorporated in the compact housing, so apparatus of the present invention volume is little, is easy to carry about with one.Apparatus of the present invention can draw accurate atmospheric mixed layer height indirectly owing to only need to measure numerical value such as surface air temperature, atmospheric pressure, solar radiation, air humidity, wind speed and dewpoint temperature, so apparatus of the present invention are simple to operate, it is reliable to measure, antijamming capability is strong.In addition, the principle that apparatus of the present invention are measured the atmospheric mixed layer height is simple, influence factor is less, the error of calculation is less, therefore is easy to promote the use of.
Description of drawings
Fig. 1 is one day 24 hours changing trend diagrams of atmospheric mixed layer height in Changsha summer in 2009 (June is to August);
Fig. 2 is that Changsha 2005～2,009 five year atmospheric mixed layer height regression model result of calculation and NOAA announce the comparison synoptic diagram between the result;
Fig. 3 is atmospheric mixed layer high predicted result and the comparison diagram of the NOAA of U.S. marine atmosphere management board (http://www.noaa.gov/) publish data 1～October in 2010.
Fig. 4 is the appearance assumption diagram of apparatus of the present invention;
Fig. 5 is apparatus of the present invention internal circuit block diagram.
Embodiment
Below with reference to the drawings and specific embodiments the present invention is described in further details:
Embodiment 1:
Determine and the example of computation process about the parameter of atmospheric mixed layer altitude information:
With the Changsha is example, specifies foundation, enforcement and the forecasting process of above-mentioned regression model (being the computing formula of aforesaid MLH).
At first, obtain historical data.On the one hand, download 24 hours Changsha atmospheric mixed layer altitude information, 5 years (2005～2009) every days (China's still unexposed at present city mixolimnion altitude information) in the past from the NOAA of U.S. marine atmosphere management board (http://www.noaa.gov/), on the other hand, by the basic meteorologic parameter data that obtain 5 years 24 hours (2005～2009) every days of Changsha past in international meteorological website (http://www.wunderground.com/) open weather data of announcing.
Secondly, according to above-mentioned historical data, utilize SPSS (i.e. Chinese: statistics product and service solution) statistical analysis software (any statistical software all possesses this function) is set up urban atmosphere mixolimnion height and the multiple linear regression segmented model between the meteorologic parameter is as follows substantially:
Daytime (8:00-19:00): MLH=-11882+1.4*SR+56.4*WS+10.6*P+62.9*T-56.9*DT+12.3*RH;
Night (20:00-7:00): MLH=-679+0.07*SR+47.6*WS+0.8*P+10.6*T-8.9*DT-0.6*RH.
At last, utilize above-mentioned regression model real-time estimate Changsha atmospheric mixed layer height.Fig. 3 is the atmospheric mixed layer height change that we adopt basic meteorologic parameter data (http://www.wunderground.com/) calculating in 1～October in 2010, the data of announcing with the NOAA of U.S. marine atmosphere management board (http://www.noaa.gov/) are very consistent, fully verified the predicting reliability of regression model.
Fig. 1 is one day 24 hours changing trend diagrams of atmospheric mixed layer height in Changsha summer in 2009 (June is to August), can find out obviously that (night, mean value was about 200 meters to the remarkable difference of its daytime and night existence, on average refer to daytime then between 200～1500 meters, change), therefore carry out piecewise regression night on daytime of the present invention, to improve the reliability of model.
Fig. 2 is that Changsha 2005～2,009 five year atmospheric mixed layer height regression model result of calculation and NOAA announce the comparison between the result, and the related coefficient of the two (is correlativity R up to 0.886
2=0.886
2The reliability of regression model=0.785), is described.
Fig. 3 is atmospheric mixed layer high predicted result and the comparison of the NOAA of U.S. marine atmosphere management board (http://www.noaa.gov/) publish data 1～October in 2010, and the result is very consistent, has fully verified the predicting reliability of regression model.
Illustrate:
(1) urban atmosphere mixolimnion height historical data can be foregoing any method in the regression model, calculates as the remote probe of large-scale weather station or according to theoretical model to obtain.
(2) the basic meteorologic parameter principle that adopts of the present invention is simple and obtains (as adopting the weather data that small-sized or miniature weather station can real-time testing) easily or weather data that local weather bureau announces in real time, and the concrete meteorologic parameter that adopts comprises: air themperature (T), dewpoint temperature (DT), atmospheric pressure (P), relative humidity (RH), solar radiation (SR), ground wind speed (WS).
(3) since the atmospheric mixed layer height by day with conspicuousness difference (seeing accompanying drawing 1) is arranged night, therefore for improving the reliability of regression model, the present invention's suggestion is to carrying out piecewise regression at daytime and night.
(4) above-mentioned statistics regression model has been realized adopting and has been very easy to obtain or the basic meteorologic parameter of test is calculated the method for the urban atmosphere mixolimnion height that is very difficult to obtain or tests.
(5) the basic meteorologic parameter data of announcing in real time by on-the-spot test or local weather bureau can be calculated and predicted city atmospheric mixed layer height and variation thereof in real time according to above-mentioned multiple linear regression model.
Because for different cities, its linear regression coeffficient all is to carry out linear regression method through historical data to obtain, therefore, method of the present invention has universality.Promptly can use in any city, difference only is the concrete numerical value difference of regression coefficient in the different cities.
As shown in Figure 4; the mancarried device of a kind of real-time measurement atmospheric mixed layer height of apparatus of the present invention; by wind direction and wind velocity sensor 1, bracing frame 2, protective cover 3, back up pad 4, control cabinet 5, button 6, baffle plate 7 (but baffle plate folding; the function that has waterproof and dustproof when baffle plate closes is promptly protected button, interface, display screen etc.), triangle fixed support 8, data-interface 9, display screen 10 and solar radiation sensor 11 and built-in circuit form.Wherein in the protective cover 3 ambient temperature and humidity sensor, barometric pressure sensor and dew point temperature sensor are arranged, protective cover 3 can protect above-mentioned three sensors not to be subjected to the influence of rainwater and radiation.
(2) the built-in circuit block diagram as shown in Figure 5, main solar radiation sensor, Temperature Humidity Sensor, wind direction and wind velocity sensor, pressure transducer, dew point temperature sensor, digital signal processor, time signal generator, button, data-carrier store and digital display screen are formed, solar radiation sensor wherein, Temperature Humidity Sensor, wind direction and wind velocity sensor, pressure transducer, dew point temperature sensor, the output terminal of time signal generator and button is connected with the input end of digital signal processor, and can send dependent instruction to digital signal processor by button, realize relevant setting apparatus of the present invention.The atmospheric mixed layer high computational formula of the built-in existing result of study of digital signal processor, when solar radiation, air themperature and air humidity, wind speed, atmospheric pressure, dewpoint temperature input are arranged simultaneously, digital signal processor can with reference to the system time in the equipment select automatically to use daytime or evening computing formula calculate real-time atmospheric mixed layer height number.The output terminal of digital signal processor is connected with the input end of digital display screen and data-carrier store simultaneously, is presented at solar radiation, air themperature and air humidity, wind direction and wind speed, atmospheric pressure, dewpoint temperature and the atmospheric mixed layer height number that obtains on the display screen in real time and is stored in the data-carrier store.By button, can set apparatus of the present invention system time, begin and time interval of power cut-off time, record and storage data and the data-interface data way of output (the usb data interface still is the RS232 data-interface) when being connected with computer.
(3) when apparatus of the present invention being connected with computer with data line, " atmospheric mixed layer height monitoring system platform " software that operation is special-purpose, but the software operation replacing key-press carries out system time, begins and time interval of power cut-off time, record and storage data is provided with apparatus of the present invention, also can check or other operations the data in real-time Monitoring Data and the storer.If when connecting computer, apparatus of the present invention are being carried out monitoring, click " monitoring in real time " in " atmospheric mixed layer height monitoring system platform " software interface toolbar and can check mean value in real-time wind direction, air themperature, atmospheric pressure, solar radiation, air humidity, wind speed, dewpoint temperature and atmospheric mixed layer height number and they one hour; " historical data " in the click tools hurdle can operation such as check, download and empty to the data in the data storer, and the data download formats of acquiescence is " .xls " form, convenient follow-up data statistic analysis.Can transfer the data with existing that has been loaded in the computer down when moving " atmospheric mixed layer height monitoring system platform " software in addition checks.
Claims (5)
1. mancarried device of measuring in real time the atmospheric mixed layer height, it is characterized in that, the control cabinet is installed on three corner steadies, vertically be provided with the bracing frame of T shape on the control cabinet, the wind direction test section of wind direction and wind velocity sensor and wind speed test section be installed in respectively bracing frame about on 2 horizontal arms, solar radiation sensor is fixed on the top of the vertical pole of bracing frame;
Ambient temperature and humidity sensor, barometric pressure sensor and dew point temperature sensor are installed on the back up pad of stretching out control cabinet outside;
Be provided with digital signal processor, time signal generator and data-carrier store in the control cabinet, the control cabinet is provided with display screen and button;
Solar radiation sensor, wind direction and wind velocity sensor, ambient temperature and humidity sensor, barometric pressure sensor, dew point temperature sensor and time signal generator, data-carrier store, button and display screen all join with digital signal processor.
2. the mancarried device of real-time measurement atmospheric mixed layer height according to claim 1, it is characterized in that described digital signal processor has and is used for the computing unit that detected value and following formula according to current each sensor calculate the atmospheric mixed layer height value:
MLH=a
1T+a
2P+a
3SR+a
4RH+a
5WS+a
6DT calculates the predicted value of the atmospheric mixed layer height in this city; MLH in the formula is the atmospheric mixed layer height;
A in the formula
1～a
6Be regression coefficient, regression coefficient is learned the multiple linear regression analysis method acquisition by statistics by the weather data and the historical atmospheric mixed layer height of history; T is an air themperature, and P is that atmospheric pressure, SR are solar radiation value, and RH is an air humidity, and WS is that wind speed, DT are dewpoint temperature.
3. the mancarried device of real-time measurement atmospheric mixed layer height according to claim 1 is characterized in that back up pad is provided with the protective cover that is used to cover ambient temperature and humidity sensor, barometric pressure sensor and dew point temperature sensor;
4. the mancarried device of real-time measurement atmospheric mixed layer height according to claim 1 is characterized in that three corner steadies are provided with the screw that is used for three corner steadies are fixed on ground.
5. according to the mancarried device of each described real-time measurement atmospheric mixed layer height of claim 1-4, it is characterized in that the control cabinet back side is provided with the ventilating opening of venetian blind type.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100477854A CN102183238A (en) | 2011-02-28 | 2011-02-28 | Portable device for measuring height of atmospheric mixing layer in real time |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100477854A CN102183238A (en) | 2011-02-28 | 2011-02-28 | Portable device for measuring height of atmospheric mixing layer in real time |
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| CN102183238A true CN102183238A (en) | 2011-09-14 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712718A (en) * | 2013-12-24 | 2014-04-09 | 上海国研工程检测有限公司 | Instant field heat exchange efficiency detection device for air-exhaust heat reclamation device |
| CN103901505A (en) * | 2014-03-11 | 2014-07-02 | 中国气象科学研究院 | Cloud top height detection method and device based on wet bulb effect |
| CN112461387A (en) * | 2020-11-16 | 2021-03-09 | 齐齐哈尔建华机械有限公司 | Atmosphere vertical stability testing arrangement |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20050122623A (en) * | 2004-06-25 | 2005-12-29 | 주식회사 에니텍 | Potable airwatch system |
| CN2752790Y (en) * | 2004-12-07 | 2006-01-18 | 北京华创升达高科技发展中心 | Automatic meteorological observation apparatus |
Non-Patent Citations (2)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712718A (en) * | 2013-12-24 | 2014-04-09 | 上海国研工程检测有限公司 | Instant field heat exchange efficiency detection device for air-exhaust heat reclamation device |
| CN103712718B (en) * | 2013-12-24 | 2016-03-09 | 上海国研工程检测有限公司 | The on-the-spot instant device detecting heat recovery equipment of extract air heat exchanger effectiveness |
| CN103901505A (en) * | 2014-03-11 | 2014-07-02 | 中国气象科学研究院 | Cloud top height detection method and device based on wet bulb effect |
| CN112461387A (en) * | 2020-11-16 | 2021-03-09 | 齐齐哈尔建华机械有限公司 | Atmosphere vertical stability testing arrangement |
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Application publication date: 20110914 |