CN106054283B - A kind of method and device of inverting higher troposphere and lower stratosphere wind field - Google Patents
A kind of method and device of inverting higher troposphere and lower stratosphere wind field Download PDFInfo
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- CN106054283B CN106054283B CN201610383107.8A CN201610383107A CN106054283B CN 106054283 B CN106054283 B CN 106054283B CN 201610383107 A CN201610383107 A CN 201610383107A CN 106054283 B CN106054283 B CN 106054283B
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Abstract
The invention discloses the method and devices of a kind of inverting higher troposphere and lower stratosphere wind field, carry out Wind-field Retrieval using the temperature profile information that Radio Occultation detects, calculate the physical characteristic parameter for obtaining the wind field；Wind field is matched in conjunction with the great inversion data of 5 degree of horizontal resolutions, obtains the troposphere top information of wind field；The wind field is matched in conjunction with the terrain data of 0.1 degree of horizontal resolution, obtains the Hai Lu and Terrain Height Information of wind field；Wind field is matched in conjunction with the earth's surface and sea surface temperature data of 0.5 degree of horizontal resolution, obtains the landscape characteristics information of the wind field；The wind field physical characteristic parameter being calculated is matched with troposphere top information, Hai Lu and the Terrain Height Information and landscape characteristics information of wind field, builds Characteristics of Wind Field parameter data set.The above method and device can provide the atmospheric wind data of round-the-clock high-spatial and temporal resolution.
Description
Technical field
The present invention relates to atmospheric science studying technological domain more particularly to a kind of inverting higher tropospheres and lower stratosphere wind field
Method and device.
Background technology
Higher troposphere and one of the important parameter that lower stratosphere wind field is atmospheric science research, can explain the dynamic of air
Mechanical process and the interaction included and causality, while higher troposphere and lower stratosphere Wind parameters in wind are pre- in weather
Report, atmosphere environment supervision and national defence high-tech etc. all have a wide range of applications, in order to improve satellite data in synoptic model
Application power in terms of simulation and forecast, research and announcement Wind parameters in wind have important scientific meaning and application value.
The prior art mainly obtains the observation of atmospheric wind by satellite cloud picture, ground wind profile radar, sounding balloon
Data is compared with prior art, (including atmospheric refraction coefficient, big using the atmospheric parameter of Radio Occultation Detection Techniques inverting
Temperature degree and pressure) profile have higher vertical resolution, and Radio Occultation Detection Techniques can provide earth troposphere and
Between stratosphere regardless of weather conditions, regardless of day and night, the atmospheric parameter profile data of global distribution, but lack in the prior art
Utilize the technological means of Radio Occultation result of detection inverting higher troposphere and lower advection layer region wind field.
Invention content
The object of the present invention is to provide the method and device of a kind of inverting higher troposphere and lower stratosphere wind field, this method energy
The atmospheric wind data of round-the-clock high-spatial and temporal resolution are provided, consequently facilitating deeply understanding higher troposphere and lower advection layer region
The physical features and its spatial-temporal distribution characteristic of wind field.
A kind of method of inverting higher troposphere and lower stratosphere wind field, the method includes：
Wind-field Retrieval is carried out using the temperature profile information that Radio Occultation detects, calculates the physics for obtaining the wind field
Characteristic parameter；
Wind field is matched in conjunction with the great inversion data of 5 degree of horizontal resolutions, obtains the troposphere of the wind field
Push up information；
The wind field is matched in conjunction with the terrain data of 0.1 degree of horizontal resolution, obtain the wind field Hai Lu and
Terrain Height Information；
The wind field is matched in conjunction with the earth's surface and sea surface temperature data of 0.5 degree of horizontal resolution, obtains the wind
The landscape characteristics information of field；
The troposphere top information of the wind field physical characteristic parameter being calculated and the wind field, Hai Lu and Terrain Elevation are believed
Breath and landscape characteristics information are matched, and Characteristics of Wind Field parameter data set is built.
A kind of device of inverting higher troposphere and lower stratosphere wind field, described device include：
Thermal wind computing unit, the temperature profile information for being detected using Radio Occultation carry out Wind-field Retrieval, meter
Calculate the physical characteristic parameter for obtaining the wind field；
Troposphere top information acquisition unit carries out wind field for the great inversion data in conjunction with 5 degree of horizontal resolutions
Matching, obtains the troposphere top information of the wind field；
Hai Lu and Terrain Height Information acquiring unit, for the terrain data in conjunction with 0.1 degree of horizontal resolution to the wind
Field is matched, and the Hai Lu and Terrain Height Information of the wind field are obtained；
Landscape characteristics information acquisition unit, for the earth's surface and sea surface temperature data pair in conjunction with 0.5 degree of horizontal resolution
The wind field is matched, and the landscape characteristics information of the wind field is obtained；
Characteristic parameter data set construction unit, pair of wind field physical characteristic parameter and the wind field for will be calculated
Fluid layer top information, Hai Lu and Terrain Height Information and landscape characteristics information are matched, and Characteristics of Wind Field supplemental characteristic is built
Collection.
As seen from the above technical solution provided by the invention, the above method and device can provide round-the-clock high space-time
The atmospheric wind data of resolution ratio, consequently facilitating deeply the physical features of understanding higher troposphere and lower advection layer region wind field and its
Spatial-temporal distribution characteristic.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is provided the method flow schematic diagram of inverting higher troposphere and lower stratosphere wind field by the embodiment of the present invention；
Fig. 2 is the effect diagram of Wind-field Retrieval of example of the present invention；
Fig. 3 is the application schematic diagram of wind field physical element matching process provided by the present invention；
Fig. 4 is the structural schematic diagram of described device of the embodiment of the present invention.
Specific implementation mode
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
The embodiment of invention, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, belongs to protection scope of the present invention.
Radio Occultation observation data are utilized in the method for the embodiment of the present invention, in conjunction with troposphere heights of roofs information, landform
Data identify extra large land, landscape characteristics information, carry out the Wind-field Retrieval with geography information, and special for the physics of wind field
It levies parameter to calculate, ultimately forms data set；This to further investigate wind field horizontal and vertical structure, different terrain environment and underlay
Wind field physical characteristic parameter under the conditions of face provides technical support and data ensure.The present invention is implemented below in conjunction with attached drawing
Example is described in further detail, and provides inverting higher troposphere and lower stratosphere wind field by the embodiment of the present invention as shown in Figure 1
Method flow schematic diagram, the method includes：
Step 11：Wind-field Retrieval is carried out using the temperature profile information that Radio Occultation detects, calculates and obtains the wind
The physical characteristic parameter of field；
In this step, the temperature profile information detected using Radio Occultation carries out the process tool of Wind-field Retrieval
Body is：
First, the temperature profile that Radio Occultation observes is carried out acquiring gas-bearing formation mean temperature by 2.5km, and obtained every
The atmospheric pressure value of layer up-and-down boundary obtains the gas-bearing formation mean temperature profile number that vertical resolution within the scope of 5-40km of the whole world is 2.5km
According to；Vertical resolution refers to the minimal spatial separation of adjacent upper layer and lower layer temperature observation result on same temperature profile.Specifically
In realization, above-mentioned Radio Occultation observed temperature profile calculating process is 25 Radio Occultation observed temperature layers in every 2.5km
Knot carries out arithmetic average, obtains the mean temperature of corresponding atmosphere and records the corresponding air pressure in gas-bearing formation up-and-down boundary position
Value.
Again using due east direction as X-axis positive direction, direct north is Y-axis positive direction, and zenith direction is vertical positive direction, profit
Use formula
It is wide less than the gas-bearing formation mean temperature of 250km and detection time difference in 1 hour that traversal calculates all distances two-by-two
Line obtains the thermal wind profile data that 5-40km vertical resolutions are 2.5km；Wherein, UTIt is atmospheric wind dividing in X-axis
Amount；VTThe component for being atmospheric wind in Y-axis；T is gas-bearing formation mean temperature；pBAnd pTRespectively gas-bearing formation lower boundary and coboundary position
Set corresponding air pressure；Coriolis force parameter f is latitudeFunctionFor rotational-angular velocity of the earth；G is acceleration of gravity；
R is gas constant.
In specific calculating, it can also carry out calculating thermal wind calculating using central differences format, using in the formula
Centre difference scheme is represented by
Wherein, TnorthFor the profile relatively by north of position in gas-bearing formation mean temperature profile two-by-two, similarly, Tsouth、TeastWith
TwestDistinguish the profile that position is by north, by east and to the west in gas-bearing formation mean temperature profile two-by-two；pBAnd pTRespectively two gas-bearing formations are average
The average value of the corresponding air pressure of temperature profile gas-bearing formation lower boundary and coboundary position.
Finally, the lattice point of above-mentioned thermal wind profile data is completed, anti-square distance Power Interpolation method can be specifically taken,
To the gas-bearing formation mean temperature profile and thermal wind profile number in 1 hour, 3 hours, 6 hours, 12 hours, 1 day, 5 days, 10 days, January
On global lattice point according to interpolation to 5 degree of horizontal resolutions, obtain 5-40km of the whole world within the scope of by hour, by 3 hours, it is small by 6
When, by 12 hours, day by day, by time (5 days), by ten days (10 days), vertical resolution month by month be 2.5km, horizontal resolution is 5 degree
Global thermal wind Grid data.
Here, inverse distance weighting be to profile position carry out linear weighted function come determine output lattice values, weighting with away from
From being inversely proportional, profile positional distance output lattice point is remoter, smaller to the influence for exporting lattice point.When a profile position and a lattice
When point overlaps, which is given the weight that a reality is 1.0, and the weight of all other profile position is 0.0.Change speech
It, which is assigned to the value with profile position consistency.Anti- distance weighting is because its Interpolation Principle should be readily appreciated that, algorithm is simply convenient for
It realizes, and former profile true value can be retained after interpolation, one of the conventional method often analyzed as space of discrete points.
In addition, the physical characteristic parameter of above-mentioned wind field can specifically include：Gas-bearing formation mean temperature, mean wind speed and wind direction,
Gas-bearing formation mean temperature profile, wind profile, wind direction profile, east-west direction wind profile and North and South direction wind profile.
Wherein, gas-bearing formation mean temperature is the global horizontal distribution of mean temperature on given gas-bearing formation.
Mean wind speed is the global horizontal distribution of mean wind speed on given gas-bearing formation.
Mean wind direction is the global horizontal distribution of mean wind speed on given gas-bearing formation.Provide that direct north is 0 °, due east, just
South, due west by being followed successively by 90 °, 180 ° and 270 ° clockwise.
Gas-bearing formation mean temperature profile is that the gas-bearing formation mean temperature that vertical resolution is 2.5km within the scope of the whole world 5 to 40km is wide
Line.
Wind direction profile is the gas-bearing formation mean wind direction profile that vertical resolution is 2.5km within the scope of the whole world 5 to 40km.
Wind profile is the gas-bearing formation mean wind speed profile that vertical resolution is 2.5km within the scope of the whole world 5 to 40km.
For example, it is illustrated in figure 2 the effect diagram of Wind-field Retrieval of example of the present invention, passes through above-mentioned mistake
The temperature profile that journey observes Radio Occultation carries out Inversion Calculation, the wind field physical characteristic parameter profile of acquisition, in Fig. 2：A generations
Table 5 is to 40km per the mean temperature of 2.5km gas-bearing formations；B represents the size of 5 to 40km each gas-bearing formation wind speed；C represents 5 to 40km each gas
The wind direction of layer.
Step 12：Wind field is matched in conjunction with the great inversion data of 5 degree of horizontal resolutions, obtains the wind field
Troposphere top information；
In this step, the great inversion data of 5 degree of horizontal resolutions of the combination carry out wind field to match specific packet
It includes：
It is using the troposphere top data of existing 500 kilometers (about 5 degree of lattice points) horizontal resolutions, wind field data are corresponding
Latitude and longitude coordinates are matched, to obtain the troposphere top information of the lattice point.
The troposphere top information of above-mentioned wind field specifically includes：The troposphere heights of roofs of the lattice point position of the wind field,
Temperature, air pressure, the mild great inversion thickness in position.
Step 13：The wind field is matched in conjunction with the terrain data of 0.1 degree of horizontal resolution, obtains the wind field
Hai Lu and Terrain Height Information；
In this step, the extra large land topographic identification of specifically used 10 kilometers existing (about 0.1 degree of lattice point) horizontal resolution
Map and Terrain Elevation, temperature, wind direction and the corresponding latitude and longitude coordinates of wind profile are matched, to determine the pixel
Positioned at land or ocean, and obtain corresponding Terrain Height Information.
The Hai Lu and Terrain Height Information of above-mentioned wind field are specifically included：Temperature, wind direction and the wind profile institute of the wind field
(land is height above sea level to the underlying surface situation (such as ocean, land, ice face) and continental shelf height of place position, waters is deep
Degree).
Step 14：The wind field is matched in conjunction with the earth's surface and sea surface temperature data of 0.5 degree of horizontal resolution, is obtained
The landscape characteristics information of the wind field；
In this step, the landscape characteristics information of the wind field specifically includes：Temperature, wind direction and the wind speed of the wind field
Underlying surface (such as ocean, land, ice face) temperature of profile present position.
The application schematic diagram of wind field physical element matching process provided by the present invention is illustrated in figure 3, in Fig. 3：a
It indicates by process listed by step 11, mean wind speed in mean temperature (grey lattice) and gas-bearing formation in 25 to 27.5 gas-bearing formations of acquisition
Size (arrow length) and wind direction；B represents the process Jing Guo step 12, and each lattice point of wind field of acquisition corresponds on longitude and latitude
Troposphere heights of roofs；C indicates that each lattice point of wind field obtained by the process Jing Guo step 13 corresponds to the Terrain Elevation on longitude and latitude；d
Indicate that each lattice point of wind field obtained by the process Jing Guo step 14 corresponds to the landscape characteristics of longitude and latitude.
Step 15：By troposphere top information, Hai Lu and the ground of the wind field physical characteristic parameter being calculated and the wind field
Shape elevation information and landscape characteristics information are matched, and Characteristics of Wind Field parameter data set is built.
In this step, the detailed process of structure Characteristics of Wind Field parameter data set is：
By the wind field physical characteristic parameter obtained, troposphere top information, Hai Lu and Terrain Height Information and underlying surface
Temperature information is numbered according to the date of wind field time, to build Characteristics of Wind Field parameter data set.Wherein, constructed number
Include the information such as wind field lattice site, time according to the filename of collection, with user-friendly.
Based on above-mentioned method, the embodiment of the present invention additionally provides a kind of dress of inverting higher troposphere and lower stratosphere wind field
It sets, is illustrated in figure 4 the structural schematic diagram of described device of the embodiment of the present invention, described device includes：
Thermal wind computing unit 41, the temperature profile information for being detected using Radio Occultation carry out Wind-field Retrieval,
Calculate the physical characteristic parameter for obtaining the wind field；
Troposphere top information acquisition unit 42, in conjunction with 5 degree of horizontal resolutions great inversion data to wind field into
Row matching, obtains the troposphere top information of the wind field；
Hai Lu and Terrain Height Information acquiring unit 43, for the terrain data in conjunction with 0.1 degree of horizontal resolution to described
Wind field is matched, and the Hai Lu and Terrain Height Information of the wind field are obtained；
Landscape characteristics information acquisition unit 44, for the earth's surface and sea surface temperature data in conjunction with 0.5 degree of horizontal resolution
The wind field is matched, the landscape characteristics information of the wind field is obtained；
Characteristic parameter data set construction unit 45, the wind field physical characteristic parameter for will be calculated and the wind field
Troposphere top information, Hai Lu and Terrain Height Information and landscape characteristics information are matched, and Characteristics of Wind Field parameter number is built
According to collection.
The specific implementation process of each unit is as described in above method embodiment in above-mentioned apparatus.
In conclusion the method and device that the embodiment of the present invention is provided can preferably characterize higher troposphere and lower stratosphere
The wind field three-dimensional structural feature and physical attribute feature of the high vertical resolution in region, convenient for recognizing in scientific research and service application
Know physical features of the wind field in Different Weather and geographical environment, sight is provided for synoptic climate forecast, atmosphere environment supervision
It surveys true.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (9)
1. a kind of method of inverting higher troposphere and lower stratosphere wind field, which is characterized in that the method includes：
Wind-field Retrieval is carried out using the temperature profile information that Radio Occultation detects, calculates the physical features for obtaining the wind field
Parameter；
Wind field is matched in conjunction with the great inversion data of 5 degree of horizontal resolutions, obtains the troposphere top letter of the wind field
Breath；
The wind field is matched in conjunction with the terrain data of 0.1 degree of horizontal resolution, obtains the Hai Lu and landform of the wind field
Elevation information；
The wind field is matched in conjunction with the earth's surface and sea surface temperature data of 0.5 degree of horizontal resolution, obtains the wind field
Landscape characteristics information；
By troposphere top information, Hai Lu and the Terrain Height Information of the wind field physical characteristic parameter being calculated and the wind field with
And landscape characteristics information is matched, and Characteristics of Wind Field parameter data set is built.
2. the method for inverting higher troposphere and lower stratosphere wind field according to claim 1, which is characterized in that described to utilize nothing
The temperature profile information that line electricity LEO occultation arrives carries out Wind-field Retrieval, specifically includes：
The temperature profile that Radio Occultation observes is carried out acquiring gas-bearing formation mean temperature by 2.5km, and is obtained following on every layer
The atmospheric pressure value on boundary obtains the gas-bearing formation mean temperature profile data that vertical resolution within the scope of 5-40km of the whole world is 2.5km；
Again using due east direction as X-axis positive direction, direct north is Y-axis positive direction, and zenith direction is vertical positive direction, utilizes public affairs
Formula
Traversal calculates all distances two-by-two and is less than the gas-bearing formation mean temperature profile of 250km and detection time difference in 1 hour, obtains
Obtain the thermal wind profile data that 5-40km vertical resolutions are 2.5km；Wherein, UTThe component for being atmospheric wind in X-axis；VTFor
Component of the atmospheric wind in Y-axis；T is gas-bearing formation mean temperature；pBAnd pTRespectively gas-bearing formation lower boundary and coboundary position is corresponding
Air pressure；Coriolis force parameter f is latitudeFunctionω is rotational-angular velocity of the earth；R is gas constant；
Then anti-square distance Power Interpolation method is taken, to 1 hour, 3 hours, 6 hours, 12 hours, 1 day, 5 days, 10 days, January
On interior gas-bearing formation mean temperature profile and thermal wind profile data interpolating to the global lattice point of 5 degree of horizontal resolutions, the whole world is obtained
Within the scope of 5-40km by hour, by 3 hours, by 6 hours, by 12 hours, day by day, by wait, the vertical resolution by ten days, month by month
The global thermal wind Grid data for being 5 degree for 2.5km, horizontal resolution.
3. the method for inverting higher troposphere and lower stratosphere wind field according to claim 1, which is characterized in that the wind field
Physical characteristic parameter specifically includes：
Gas-bearing formation mean temperature, mean wind speed and wind direction, gas-bearing formation mean temperature profile, wind profile, wind direction profile, it is between east and west aweather
Fast profile and North and South direction wind profile.
4. the method for inverting higher troposphere and lower stratosphere wind field according to claim 1, which is characterized in that the combination 5
The great inversion data of degree horizontal resolution match wind field, specifically include：
Using the troposphere top information of existing 500 kilometers of horizontal resolutions, therewith by the corresponding latitude and longitude coordinates of wind field data
Match, to obtain the troposphere top information of the latitude and longitude coordinates.
5. the method for inverting higher troposphere and lower stratosphere wind field according to claim 1, which is characterized in that the wind field
Troposphere top information includes：
The troposphere heights of roofs of the lattice point position of the wind field, temperature, air pressure, the mild great inversion thickness in position.
6. the method for inverting higher troposphere and lower stratosphere wind field according to claim 1, which is characterized in that the wind field
Hai Lu and Terrain Height Information specifically include：
Temperature, wind direction and the underlying surface situation of wind profile present position and continental shelf height of the wind field.
7. the method for inverting higher troposphere and lower stratosphere wind field according to claim 1, which is characterized in that the wind field
Landscape characteristics information specifically includes：
The temperature of the wind field, the landscape characteristics of wind direction and wind profile present position.
8. the method for inverting higher troposphere and lower stratosphere wind field according to claim 1, which is characterized in that the structure wind
The process of characteristic parameter data set is：
By the wind field physical characteristic parameter obtained, troposphere top information, Hai Lu and Terrain Height Information and landscape characteristics
Information is numbered according to the date of wind field time, to build Characteristics of Wind Field parameter data set.
9. the device of a kind of inverting higher troposphere and lower stratosphere wind field, which is characterized in that described device includes：
Thermal wind computing unit, the temperature profile information for being detected using Radio Occultation carry out Wind-field Retrieval, and calculating obtains
Obtain the physical characteristic parameter of the wind field；
Troposphere top information acquisition unit, for combining the great inversion data of 5 degree of horizontal resolutions to match wind field,
Obtain the troposphere top information of the wind field；
Hai Lu and Terrain Height Information acquiring unit, in conjunction with 0.1 degree of horizontal resolution terrain data to the wind field into
Row matching, obtains the Hai Lu and Terrain Height Information of the wind field；
Landscape characteristics information acquisition unit, in conjunction with 0.5 degree of horizontal resolution earth's surface and sea surface temperature data to described
Wind field is matched, and the landscape characteristics information of the wind field is obtained；
Characteristic parameter data set construction unit, the troposphere of wind field physical characteristic parameter and the wind field for will be calculated
Top information, Hai Lu and Terrain Height Information and landscape characteristics information are matched, and Characteristics of Wind Field parameter data set is built.
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| CN107357999A (en) * | 2017-07-19 | 2017-11-17 | 云南电网有限责任公司电力科学研究院 | The method for numerical simulation and system of a kind of wind field |
| CN109298466B (en) * | 2018-09-29 | 2020-09-01 | 国家气象信息中心 | Threshold parameter selection method for sounding characteristic layer selection |
| CN110836982B (en) * | 2019-10-28 | 2021-12-07 | 北京空间机电研究所 | Occultation atmosphere wind speed profile measuring system and method based on tunable laser |
| CN111178384B (en) * | 2019-12-01 | 2023-05-05 | 国家卫星气象中心 | Meteorological satellite power troposphere top height inversion method and device, storage medium and computer equipment |
| CN111241698A (en) * | 2020-01-17 | 2020-06-05 | 国家卫星气象中心 | Convective stratum top wind field inversion method and device, storage medium and computer equipment |
| CN111368452B (en) * | 2020-03-17 | 2023-05-12 | 广东海洋大学 | Method for constructing temperature profile based on level drift sphere sounding data |
| CN113609757B (en) * | 2021-07-13 | 2024-03-08 | 中国科学院国家空间科学中心 | GNSS occultation troposphere parameter correction method based on random forest regression |
| CN114879280A (en) * | 2022-03-14 | 2022-08-09 | 上海海洋大学 | Atmospheric inverse temperature characteristic estimation method combining radio occultation observation and ERA5 |
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