CN115166875A - Data quality control and evaluation system for raindrop spectrometer - Google Patents
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Abstract
The invention discloses a raindrop spectrometer data quality control and evaluation system, which comprises a data source, a data quality control module, a data parameter generation module and a consistency evaluation module, wherein the raindrop spectrometer data quality control and consistency comparison analysis are completed by adopting a real-time quality control method of raindrop spectrometer data and a space-time consistency matching method of radar-raindrop spectrometer-rain gauge, the national ground meteorological station raindrop spectrometer network data-radar-rain gauge combined cross check deployed in the meteorological department of China can be realized, the cost is low, the raindrop spectrometer data quality control and consistency comparison analysis system is applied to meteorological data, the raindrop spectrometer network data-radar-rain gauge combined cross check system has the advantages of inspiring improved instrument structural performance, improving data quality and usability and the like, the system is adopted to statistically evaluate the consistency of the raindrop spectrometer and the raingauge data, the raindrop volume calculated by the raindrop spectrometer data has better consistency with actual measurement of the raindrop gauge through conclusion, and the result has good inspiring significance for the raindrop spectrometer data evaluation and the application of the raindrop spectrometer data evaluation in multisource.
Description
Technical Field
The invention belongs to the technical field of meteorological data evaluation, and particularly relates to a raindrop spectrometer data quality control and evaluation system.
Background
At present, more than 2000 national ground meteorological station raindrop spectrometer networks are deployed by the meteorological department in China and are officially applied in about 2019, but the data quality of the instrument is not evaluated all the time, and the data availability is also testified. The raindrop spectrometer net which is built in China comprises a 100 type and a 200 type, wherein the 100 type and the 200 type adopt the German Pasival laser raindrop spectrometer measuring principle to capture the diameter and the speed distribution of precipitation particles,and (4) according to a precipitation parameter calculation method, obtaining radar reflectivity factor Z, precipitation intensity R and other precipitation characteristic quantities. The 100 type raindrop spectrometer is 32 (particle diameter channel 0.062-24.5 mm) × 32 (particle velocity channel 0.05-20.8 m/s) channels, and the sampling area is 54mm 2 Type 200 is 22 (particle diameter channel 0.062-7.75 mm) × 20 channels (particle velocity channel 0.1-10.0 m/s), and the sampling area is 48mm 2 And the sampling time of the data of the two models is 1min.
The national level ground meteorological observation equipment, namely the raindrop spectrometer, constructed by the meteorological department in China cannot evaluate the data quality of the instrument or the structural rationality of the instrument at present. Aiming at the national ground meteorological station raindrop spectrometer net constructed by the meteorological department in China at present, the invention or the aim of the utility model is fulfilled without an alternative scheme at present. Therefore, the designed data quality control and evaluation system of the raindrop spectrometer aims to solve the problems of structural improvement of the raindrop spectrometer, improvement of data availability and the like, and therefore high-quality raindrop spectrometer data and product support are provided for weather forecasting and decision-making services.
Disclosure of Invention
The technical problem to be solved by the present invention is to overcome the existing defects, and provide a raindrop spectrometer data quality control and evaluation system to solve the problems proposed in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a raindrop spectrometer data quality control and evaluation system, includes data source, data quality control module, data parameter generation module and uniformity evaluation module, two output of data source interconnect with the input of data quality control module, data parameter generation module respectively, the output of data quality control module, data parameter generation module all with uniformity evaluation module's input interconnect, uniformity evaluation module's output and the input interconnect of data application conclusion, the data source includes raindrop spectrometer data source, rain gauge data source and weather radar data source, inside echo intensity evaluation module, the rainfall evaluation module of being provided with of uniformity evaluation module, the inside data quality control process, real-time quality control and the result quality control that contains of data quality control module, the inside parameter calculation that contains of data parameter generation module.
Preferably, the raindrop spectrometer data source adopts raindrop spectrometers of models 100 and 200 of national-level automatic weather stations, the data format of the raindrop spectrometer data source is txt, minute-by-minute data (Beijing hours) from 01 minutes in the previous day to 20 minutes today are contained in the raindrop spectrometer data source, and 1440 pieces of data are counted in total.
Preferably, the rainfall meter data source adopts the hourly rainfall of the state station rainfall meter corresponding to the raindrop spectrometer, and one datum is obtained every 1 hour and contains a quality control code (the datum is used for rainfall matching evaluation of data inversion of the raindrop spectrometer).
Preferably, the weather radar data source adopts a quality-controlled HBR product with single-station data of the current new-generation weather radar, and one file is used every 5 minutes (the data is used for matching and evaluating the reflectivity factor inverted by the raindrop spectrometer data).
Preferably, in the data quality control process, the data quality control is performed when the data of the raindrop spectrometer per minute meets the condition that the total number of precipitation particles is more than 50, that is, the precipitation exists.
Preferably, in the real-time monitoring, the data of 32 × 32 channels (100 type) and 22 × 20 channels (200 type) in the txt file are subjected to quality control by minute.
Preferably, in the result quality control, data of only one instrument of the three instruments of the raindrop spectrometer, the radar and the rain gauge are removed, the precipitation is not in the same order of magnitude, and data of which the relative error between the hour precipitation and the rain gauge is more than 50% is removed, wherein the relative error is obtained by calculating the data of the raindrop spectrometer. Wherein, the relative deviation = | rain gauge-raindrop spectrometer |/rain gauge × 100%.
Preferably, in the parameter calculation, a 100-type raindrop spectrometer is taken as an example:
total number of precipitation particles (unit: number/min):
the raindrop spectrum (unit:
)：
reflectance factor Z (unit)
)：
Rain strength I (unit)
)：
Wherein n is ij The measured precipitation particle number V representing the ith scale and the jth speed j The final falling speed of the j-th precipitation particle, delta D i The ith particle size channel width, Δ T is the sampling time, and a is the sampling area. For the model 200 raindrop spectrometer, the maximum value of i is 22, and the maximum value of j is 20.
Preferably, the echo intensity evaluation module is used for realizing consistency comparison between the echo intensity measured by the radar and the echo intensity inverted by the raindrop spectrometer data. Since the data of the raindrop spectrometer is point data, the sampling time is 1min, the radar data is surface data, and the time resolution is 6min, space matching and time matching are required when consistency comparison evaluation is performed.
Preferably, the rainfall evaluation module realizes the consistency comparison between the actually measured rainfall intensity of the automatic station rain gauge and the rainfall intensity inverted by the raindrop spectrometer data.
Compared with the prior art, the invention provides a data quality control and evaluation system of a raindrop spectrometer, which has the following beneficial effects:
the invention completes the quality control and consistency comparison analysis of the raindrop spectrometer data by adopting the real-time quality control of the raindrop spectrometer data and the time consistency matching method of the radar, the raindrop spectrometer and the rain gauge, can realize the united cross check of the raindrop spectrometer network data of the national ground meteorological station, the radar and the rain gauge deployed by the meteorological department in China, has low cost, is applied to the meteorological data, has the advantages of inspiring and improving the structural performance of the instrument, improving the data quality and the usability and the like, statistically evaluates the consistency of the raindrop spectrometer and the rain gauge data by adopting the system, obtains better consistency of the calculated raindrop spectrometer and the actual measurement of the rain gauge through the conclusion, and has good inspiring significance for the raindrop spectrometer data evaluation and the application of the raindrop spectrometer in multiple sources.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:
FIG. 1 is a system flow diagram of a raindrop spectrometer data quality control and evaluation system in accordance with the present invention;
FIG. 2 is a system flow diagram of a data source in a raindrop spectrometer data quality control and evaluation system in accordance with the present invention;
FIG. 3 is a system flow diagram of a consistency evaluation module in the raindrop spectrometer data quality control and evaluation system according to the present invention;
FIG. 4 is a general block diagram of a raindrop spectrometer data quality control and evaluation system according to the present invention;
FIG. 5 is a flow chart of the echo intensity evaluation of the raindrop spectrometer data quality control and evaluation system according to the present invention;
FIG. 6 is a schematic diagram of an average radar reflectivity point of a raindrop spectrometer data quality control and evaluation system according to the present invention;
FIG. 7 is a flow chart of the precipitation evaluation of the raindrop spectrometer data quality control and evaluation system according to the present invention;
fig. 8 is a schematic diagram of the consistency evaluation result of the raindrop spectrometer and the rain gauge of the raindrop spectrometer data quality control and evaluation system according to the present invention;
in the figure: 1. a data source; 2. a data quality control module; 3. a data parameter generation module; 4. a consistency evaluation module; 5. a data application conclusion; 6. a raindrop spectrometer data source; 7. a rain gauge data source; 8. a weather radar data source; 9. an echo intensity evaluation module; 10. and a rainfall amount evaluation module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides the following technical solutions: the utility model provides a raindrop spectrometer data quality control and evaluation system, including data source 1, data quality control module 2, data parameter generation module 3 and uniformity evaluation module 4, two output of data source 1 respectively with data quality control module 2, the input interconnect of data parameter generation module 3, data quality control module 2, the output of data parameter generation module 3 all interconnects with the input of uniformity evaluation module 4, the output of uniformity evaluation module 4 and the input interconnect of data application conclusion 5, data source 1 includes raindrop spectrometer data source 6, rain gauge data source 7 and weather radar data source 8, uniformity evaluation module 4 is inside to be provided with echo intensity evaluation module 9, rainfall evaluation module 10, data quality control module 2 is inside to include data quality control process, real-time quality control and result quality control, data generation module 3 is inside to include the parameter calculation.
In the present invention, the raindrop spectrometer data source 6 preferably adopts raindrop spectrometers of models 100 and 200 of the national automatic weather station, and the data format thereof is txt, which contains minute-by-minute data (beijing time) from 01 minutes a day to 20 minutes today, totaling 1440 pieces of data.
In the present invention, preferably, the rain gauge data source 7 uses the hourly precipitation amount of the national-level station rain gauge corresponding to the raindrop spectrometer, and each 1 hour data contains a quality control code (the data is used for the rainfall matching evaluation by the data inversion of the raindrop spectrometer).
In the present invention, preferably, the weather radar data source 8 adopts a quality-controlled HBR product of the current new-generation weather radar single-station data, and one file is used every 5 minutes (this data is used for the reflectance factor matching evaluation of the raindrop spectrometer data inversion).
In the invention, preferably, in the data quality control process, the data quality control is carried out under the condition that the minute-by-minute data of the raindrop spectrometer meet that the total number of precipitation particles is more than 50, namely under the condition that precipitation exists.
In the present invention, it is preferable that the data of 32 × 32 channels (100 type) and 22 × 20 channels (200 type) in the txt file is controlled by minute in real-time monitoring.
In the invention, preferably, in the result quality control, only one of three instruments of the raindrop spectrometer, the radar and the rain gauge is removed, the data of which the relative error between the hour rainfall and the rain gauge is more than 50 percent and which is obtained by calculating the raindrop spectrometer data is removed, wherein only one instrument has data and the rainfall is not in the same order. Wherein the relative deviation = | rain gauge-raindrop spectrometer |/rain gauge × 100%.
In the present invention, it is preferable that in the parametric calculation, a 100-type raindrop spectrometer is taken as an example:
total number of precipitation particles (unit: pieces/min):
raindrop spectrum (unit:
)：
reflectance factor Z (unit)
)：
Rain intensity I (unit)
)：
Wherein n is ij The measured precipitation particle number V representing the ith scale and the jth speed j The falling end speed, delta D, of the j-th precipitation particle i The ith particle size channel width, Δ T is the sampling time, and a is the sampling area. For the model 200 raindrop spectrometer, the maximum value of i is 22, and the maximum value of j is 20.
In the present invention, preferably, the echo intensity evaluation module 9 implements consistency comparison between the echo intensity measured by the radar and the echo intensity inverted by the raindrop spectrometer data. The data of the raindrop spectrometer is point data, the sampling time is 1min, the radar data is surface data, and the time resolution is 6min, so that space matching and time matching are required when consistency comparison evaluation is carried out.
In the invention, preferably, the rainfall evaluation module 10 realizes the consistency comparison between the actually measured rainfall intensity of the automatic station rain gauge and the rainfall intensity inverted by the raindrop spectrometer data.
The first embodiment is as follows:
a data quality control and evaluation system of a raindrop spectrometer comprises a data source 1, a data quality control module 2, a data parameter generation module 3 and a consistency evaluation module 4, two output ends of the data source 1 are respectively connected with the data quality control module 2, input ends of the data parameter generation module 3 are connected with each other, the data quality control module 2, output ends of the data parameter generation module 3 are connected with input ends of the consistency evaluation module 4, an output end of the consistency evaluation module 4 is connected with an input end of a data application conclusion 5, the data source 1 comprises a raindrop spectrometer data source 6, a raindrop spectrometer data source 7 and a weather radar data source 8, an echo intensity evaluation module 9 and a rainfall evaluation module 10 are arranged inside the consistency evaluation module 4, a data quality control process, real-time quality control and result quality control are contained inside the data quality control module 2, and parameter calculation is contained inside the data parameter generation module 3.
In the present invention, the raindrop spectrometer data source 6 preferably adopts raindrop spectrometers of models 100 and 200 of the national automatic weather station, and the data format thereof is txt, which contains minute-by-minute data (beijing time) from 01 minutes a day to 20 minutes today, totaling 1440 pieces of data.
In the present invention, preferably, the rain gauge data source 7 uses the hourly precipitation amount of the national-level station rain gauge corresponding to the raindrop spectrometer, and each 1 hour data contains a quality control code (the data is used for the rainfall matching evaluation by the data inversion of the raindrop spectrometer).
In the invention, preferably, the weather radar data source 8 adopts a quality-controlled HBR product with the current new generation weather radar single-station data, and one file is used every 5 minutes (the data is used for matching and evaluating the reflectivity factor inverted by the raindrop spectrometer data).
In the invention, preferably, in the data quality control process, the data quality control is carried out under the condition that the minute-by-minute data of the raindrop spectrometer meet that the total number of precipitation particles is more than 50, namely under the condition that precipitation exists.
In the present invention, it is preferable that the data of 32 × 32 channels (100 type) and 22 × 20 channels (200 type) in the txt file is controlled by minute in real-time monitoring.
In the invention, preferably, in the result quality control, only one of three instruments of a raindrop spectrometer, a radar and a rain gauge is removed, the data of data is contained in only one instrument, the precipitation is not in the same order of magnitude, and the data of which the relative error between the hour precipitation and the rain gauge is more than 50% is removed, wherein the error is obtained by calculating the raindrop spectrometer data. Wherein the relative deviation = | rain gauge-raindrop spectrometer |/rain gauge × 100%.
In the present invention, it is preferable that in the parameter calculation, a 100-type raindrop spectrometer is taken as an example:
total number of precipitation particles (unit: pieces/min):
raindrop spectrum (unit:
)：
reflectance factor Z (unit)
)：
Rain intensity I (unit)
)：
Wherein n is ij The measured precipitation particle number V representing the ith scale and the jth speed j The falling end speed, delta D, of the j-th precipitation particle i The ith particle size channel width, Δ T is the sampling time, and a is the sampling area. For the model 200 raindrop spectrometer, the maximum value of i is 22, and the maximum value of j is 20.
In the present invention, preferably, the echo intensity evaluation module 9 implements consistency comparison between the echo intensity measured by the radar and the echo intensity inverted by the raindrop spectrometer data. Since the data of the raindrop spectrometer is point data, the sampling time is 1min, the radar data is surface data, and the time resolution is 6min, space matching and time matching are required when consistency comparison evaluation is performed. The 9-point averaging method is adopted in space, and the principle is shown in fig. 6, wherein Z1 represents a radar library corresponding to a raindrop spectrometer, and Z2 to Z9 represent adjacent Lei Daku. The method comprises the steps of searching radar echoes of 8 distance libraries corresponding to a raindrop spectrograph and surrounding the raindrop spectrograph by using longitude and latitude, averaging the radar echoes to obtain a reflectivity factor Zr actually measured by the radar, calculating a reflectivity factor ZD obtained by the raindrop spectrograph data, searching the ZD with the smallest error of the echo intensity Zr actually measured by the radar after 5min by using radar data time as reference, and taking the ZD as Zdr to count correlation coefficients of Zdr and Zr.
In the invention, preferably, the rainfall evaluation module 10 realizes the consistency comparison between the actually measured rainfall intensity of the automatic station rain gauge and the rainfall intensity inverted by the raindrop spectrometer data.
The system is used for statistically evaluating the data consistency of the raindrop spectrometer and the rain gauge, the calculated rainfall is better consistent with the actual measurement of the rain gauge through conclusion, and the result has good significance for evaluating the raindrop spectrometer data and applying the raindrop spectrometer to multisource rainfall.
Example two:
the utility model provides a raindrop spectrometer data quality control and evaluation system, including data source 1, data quality control module 2, data parameter generation module 3 and uniformity evaluation module 4, two output of data source 1 respectively with data quality control module 2, the input interconnect of data parameter generation module 3, data quality control module 2, the output of data parameter generation module 3 all interconnects with the input of uniformity evaluation module 4, the output of uniformity evaluation module 4 and the input interconnect of data application conclusion 5, data source 1 includes raindrop spectrometer data source 6, rain gauge data source 7 and weather radar data source 8, uniformity evaluation module 4 is inside to be provided with echo intensity evaluation module 9, rainfall evaluation module 10, data quality control module 2 is inside to include data quality control process, real-time quality control and result quality control, data generation module 3 is inside to include the parameter calculation.
In the present invention, the raindrop spectrometer data source 6 preferably adopts raindrop spectrometers of models 100 and 200 of the national automatic weather station, and the data format thereof is txt, which contains minute-by-minute data (beijing time) from 01 minutes a day to 20 minutes today, totaling 1440 pieces of data.
In the present invention, preferably, the rain gauge data source 7 uses the hourly precipitation amount of the national-level station rain gauge corresponding to the raindrop spectrometer, and each 1 hour data contains a quality control code (the data is used for the rainfall matching evaluation by the data inversion of the raindrop spectrometer).
In the invention, preferably, the weather radar data source 8 adopts a quality-controlled HBR product with the current new generation weather radar single-station data, and one file is used every 5 minutes (the data is used for matching and evaluating the reflectivity factor inverted by the raindrop spectrometer data).
In the invention, preferably, in the data quality control process, the data quality control is carried out under the condition that the minute-by-minute data of the raindrop spectrometer meet that the total number of precipitation particles is more than 50, namely under the condition that precipitation exists.
In the present invention, it is preferable that the data of 32 × 32 channels (100 type) and 22 × 20 channels (200 type) in the txt file is controlled by minute in real-time monitoring.
In the invention, preferably, in the result quality control, only one of three instruments of a raindrop spectrometer, a radar and a rain gauge is removed, the data of data is contained in only one instrument, the precipitation is not in the same order of magnitude, and the data of which the relative error between the hour precipitation and the rain gauge is more than 50% is removed, wherein the error is obtained by calculating the raindrop spectrometer data. Wherein, the relative deviation = | rain gauge-raindrop spectrometer |/rain gauge × 100%.
In the figure, the precipitation grade is tabulated
In the present invention, it is preferable that in the parametric calculation, a 100-type raindrop spectrometer is taken as an example:
total number of precipitation particles (unit: pieces/min):
raindrop spectrum (unit:
)：
reflectance factor Z (unit)
)：
Rain intensity I (unit)
)：
Wherein n is ij The measured precipitation particle number V representing the ith scale and the jth speed j The falling end speed, delta D, of the j-th precipitation particle i The ith particle size channel width, Δ T is the sampling time, and a is the sampling area. For the model 200 raindrop spectrometer, the maximum value of i is set to 22 and the maximum value of j is set to 20.
In the present invention, preferably, the echo intensity evaluation module 9 implements consistency comparison between the echo intensity measured by the radar and the echo intensity inverted by the raindrop spectrometer data. Since the data of the raindrop spectrometer is point data, the sampling time is 1min, the radar data is surface data, and the time resolution is 6min, space matching and time matching are required when consistency comparison evaluation is performed.
In the invention, preferably, the rainfall evaluation module 10 realizes the consistency comparison of the actually measured rainfall intensity of the automatic station rain gauge and the rainfall intensity inverted by the data of the rain gauge, the rain gauge and the rain gauge are deployed in the same national weather station, and the longitude and the latitude are the same, so that the space consistency matching is not needed.
It should be noted that, at present, the data of 2019 and 06-09 months in Xinjiang is utilized to statistically evaluate the consistency between the 105-part raindrop spectrometer (100 type) in Xinjiang and a rain gauge, as shown in fig. 4, it is found that the calculated rainfall of the raindrop spectrometer has good consistency with the actual measurement of the rain gauge, the correlation coefficient of the two is as high as 96%, but the difference in the magnitude is large, and the result has a good inspiration significance for the evaluation of the raindrop spectrometer data and the application thereof in the multi-source rainfall.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a raindrop spectrometer data quality control and evaluation system, includes data source (1), data quality control module (2), data parameter generation module (3) and uniformity evaluation module (4), its characterized in that: two output of data source (1) respectively with the input interconnect of data quality control module (2), data parameter generation module (3), the output of data quality control module (2), data parameter generation module (3) all interconnects with the input of uniformity evaluation module (4), the output of uniformity evaluation module (4) and the input interconnect of data application conclusion (5), data source (1) is including raindrop spectrometer data source (6), rain gauge data source (7) and weather radar data source (8), uniformity evaluation module (4) inside echo intensity evaluation module (9), rainfall evaluation module (10) of being provided with, data quality control module (2) inside contains data quality control process, real-time quality control and result quality control, data parameter generation module (3) inside contains the parameter calculation.
2. The raindrop spectrometer data quality control and evaluation system according to claim 1, wherein: the data source (6) of the raindrop spectrometer adopts raindrop spectrometers of models 100 and 200 of a national-level automatic weather station, the data format of the raindrop spectrometer is txt, minute-by-minute data (Beijing hours) from 01 minutes in the previous day to 20 minutes today are contained, and 1440 pieces of data are counted.
3. The raindrop spectrometer data quality control and evaluation system of claim 1, wherein: the rainfall meter data source (7) adopts the hourly rainfall of the rainfall meter of the national station corresponding to the raindrop spectrograph, one piece of data is obtained every 1 hour, and the data contain a quality control code (the data are used for rainfall matching evaluation of the raindrop spectrograph data inversion).
4. The raindrop spectrometer data quality control and evaluation system of claim 1, wherein: the weather radar data source (8) adopts a quality-controlled HBR product with single-station data of the current new-generation weather radar, and one file is used every 5 minutes (the data is used for matching and evaluating the reflectivity factor inverted by the raindrop spectrometer data).
5. The raindrop spectrometer data quality control and evaluation system of claim 1, wherein: in the data quality control process, the data quality is controlled under the condition that the data of the raindrop spectrometer per minute meets that the total number of precipitation particles is more than 50, namely under the condition that precipitation exists.
6. The raindrop spectrometer data quality control and evaluation system according to claim 1, wherein: in the real-time monitoring, the data of 32 × 32 channels (100 type) and 22 × 20 channels (200 type) in the txt file are subjected to quality control by minute.
7. The raindrop spectrometer data quality control and evaluation system of claim 1, wherein: in the result quality control, only one of three instruments of the raindrop spectrometer, the radar and the rain gauge is removed, data of which the data is contained in the instrument and the precipitation is not in the same order of magnitude, and data of which the relative error between the hour precipitation and the rain gauge is more than 50% and which is obtained by calculating the raindrop spectrometer data is removed. Wherein the relative deviation = | rain gauge-raindrop spectrometer |/rain gauge × 100%.
8. The raindrop spectrometer data quality control and evaluation system of claim 1, wherein: in the parameter calculation, a 100-type raindrop spectrometer is taken as an example:
total number of precipitation particles (unit: pieces/min):
raindrop spectrum (unit:
)：
reflectance factor Z (unit)
)：
Rain strength I (unit)
)：
Wherein n is ij The measured precipitation particle number V representing the ith scale and the jth speed j The falling end speed, delta D, of the j-th precipitation particle i The ith particle size channel width, Δ T is the sampling time, and a is the sampling area. For model 200 raindrop spectrometer, the maximum value of i is set to 22,jThe maximum value may be 20.
9. The raindrop spectrometer data quality control and evaluation system of claim 1, wherein: the echo intensity evaluation module (9) is used for realizing the consistency comparison between the echo intensity measured by the radar and the echo intensity inverted by the raindrop spectrometer data. Since the data of the raindrop spectrometer is point data, the sampling time is 1min, the radar data is surface data, and the time resolution is 6min, space matching and time matching are required when consistency comparison evaluation is performed.
10. The raindrop spectrometer data quality control and evaluation system according to claim 1, wherein: the rainfall evaluation module (10) realizes the comparison of the actually measured rainfall intensity of the rain gauge of the automatic station and the rainfall intensity consistency of the data inversion of the raindrop spectrometer.
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