CN114117341A - Calculation method for annual average temperature in any region of Tianshan northern slope - Google Patents
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Abstract
The invention provides a method for calculating the annual average air temperature in any region of a Tianshan northern slope, which comprises the following steps: calculating the annual average gas temperature value of a meteorological station in the north slope of the Tianshan mountain, solving the correlation between the elevation at a certain position and the annual average gas temperature value of the altitude at the position, calculating the correlation between the elevation and the annual average temperature, calculating the elevation of a test site based on a digital elevation model, and calculating the annual average temperature of the test site based on the correlation between the elevation and the annual average temperature; the method can estimate the air temperature of other areas without the meteorological stations on the north slope of the Tianshan based on the limited meteorological station data, thereby obtaining an accurate air temperature value and being convenient for meeting the requirements of scientific research and decision.
Description
Technical Field
The invention relates to the field of sampling weather, in particular to a method for calculating the annual average air temperature in any region of a Tianshan northern slope.
Background
The Tianshan mountain range located on the abdomen of continental Eurasia is one of the seven mountain lines in the world. Rivers from the Tianshan all have supply of ice and snow melting water, 65% of the rivers in Xinjiang originate from the rivers, span the middle part of Xinjiang and run through the whole world, and are important natural barriers influencing weather, climate and ecological environment of Xinjiang and even middle and western regions in China. In recent years, a great deal of study is carried out on the climate change characteristics and trends of Sinkiang and Tianshan mountain areas by a plurality of scholars, but the estimation of the air temperature of the north slope of the Tianshan mountain is not clear. And moreover, the meteorological stations with few Tianshan northern slopes cannot completely meet the requirements of scientific research and decision-making, the temperature not only regulates many near-surface processes, but also influences various aspects such as snow melting in glaciers, frozen soil degradation, global climate warming and the like, and the meteorological parameters are important near-surface meteorological parameters in models of various plants, hydrology, weather, environment and the like. At present, the spatial air temperature data is obtained indirectly mainly through spatial interpolation and remote sensing data of meteorological sites. The spatial interpolation is easily influenced by terrain, and the error is large; the difficulty of inverting the temperature by adopting near infrared data for the remote sensing data is high, and a more accurate gas temperature value cannot be obtained.
Disclosure of Invention
In view of the above technical deficiencies, the present invention provides a method for calculating the annual average air temperature in any area of the north slope of Tianshan, which can estimate the air temperature in other areas without air stations on the north slope of Tianshan based on the limited data of air stations, thereby obtaining an accurate air temperature value.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for calculating the annual average air temperature in any region of a Tianshan northern slope comprises the following steps: step 1: calculating the annual average air temperature value of the Tianshan northern slope meteorological site according to the actual altitude elevation of the Tianshan northern slope meteorological site and the annual average air temperature of the Tianshan northern slope meteorological site provided by the national meteorological office;
step 2: establishing a regression model of elevations of all meteorological stations in the Tianshan and the annual average temperature value according to the annual average temperature value obtained in the step 1 to obtain a correlation between the elevation of a certain position on the north slope of the Tianshan and the annual average temperature value of the altitude of the certain position;
and step 3: calculating the direct reduction rate of the air temperature of the north slope of the Tianshan according to a linear regression equation to obtain the correlation between the elevation and the annual average temperature;
and 4, step 4: establishing a digital elevation model of the north slope of the Tianshan, and calculating the elevation of a certain position based on the digital elevation model;
and 5: according to the annual average temperature-altitude equation and the elevation data of the point, the annual average gas temperature value of any point can be calculated.
Preferably, the calculation mode of the construction annual average temperature-elevation is as follows: y is a + bx,
wherein: y is the annual average air temperature of the requested location; x is the elevation of the position, and the unit is km according to the DEM data; a and b are equation coefficients, and the calculation mode is as follows:
wherein: x is the number ofiThe elevation of a meteorological station (i is 1,2, …, n) on the north slope of the Tianshan is km;
the average value of the elevations of all meteorological stations is obtained; y is the annual average gas temperature value of the meteorological station (i is 1,2, …, n) of the north slope of the Tianshan, and the unit is;
the average value of the annual average air temperature of all meteorological sites is obtained;
finally, the following steps are obtained: y is 9.23-3.18 x.
The invention has the beneficial effects that: the design is based on limited meteorological station data, and can estimate the air temperature of other areas without meteorological stations on the north slope of the Tianshan, so that an accurate air temperature value can be obtained, and the requirements of scientific research and decision making can be met conveniently.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for calculating an annual average air temperature in any area of a north slope of the Tianshan mountain according to an embodiment of the present invention.
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.
As shown in fig. 1, a method for estimating the annual average air temperature in any area of the north slope of the Tianshan mountain includes the following steps: step 1: calculating the annual average air temperature value of the Tianshan northern slope meteorological site according to the actual altitude elevation of the Tianshan northern slope meteorological site and the annual average air temperature of the Tianshan northern slope meteorological site provided by the national meteorological office;
step 2: establishing a regression model of elevations of all meteorological stations in the Tianshan and the annual average temperature value according to the annual average temperature value obtained in the step 1 to obtain a correlation between the elevation of a certain position on the north slope of the Tianshan and the annual average temperature value of the altitude of the certain position;
and step 3: calculating the temperature direct reduction rate of the north slope of the Tianshan according to a linear regression equation to obtain a correlation relationship of annual average temperature-elevation as follows: y is a + bx;
wherein: y is the annual average air temperature of the requested location; x is the elevation of the position to be obtained, and the unit is km; a. b is an equation coefficient, and according to DEM data, the calculation mode is as follows:
wherein: x is the number ofiThe elevation of a meteorological station (i is 1,2, …, n) on the north slope of the Tianshan is km;
the average value of the elevations of all meteorological stations is obtained; y is the annual average gas temperature value of the meteorological station (i is 1,2, …, n) of the north slope of the Tianshan, and the unit is;
the average value of the annual average air temperature of all meteorological sites is obtained;
finally, the following steps are obtained: y is 9.23-3.18 x;
and 4, step 4: establishing a digital elevation model of the north slope of the Tianshan mountain, and calculating the elevation of the test land based on the digital elevation model;
and 5: according to the annual average temperature-altitude equation and the elevation data of the test site, the annual average gas temperature value of the test site can be calculated, and relevant scientific research personnel can conveniently obtain the annual average gas temperature value in the area without the meteorological data.
The design of the invention is based on limited meteorological station data, and can estimate the air temperature of other areas without meteorological stations on the north slope of the Tianshan mountain, thereby obtaining an accurate air temperature value and being convenient for meeting the requirements of scientific research and decision.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (2)
1. A method for calculating the annual average air temperature in any area of a Tianshan northern slope is characterized by comprising the following steps:
step 1: calculating the annual average air temperature value of the Tianshan northern slope meteorological site according to the actual altitude elevation of the Tianshan northern slope meteorological site and the annual average air temperature of the Tianshan northern slope meteorological site provided by the national meteorological office;
step 2: establishing a regression model of elevations of all meteorological stations in the Tianshan and the annual average temperature value according to the annual average temperature value obtained in the step 1 to obtain a correlation between the elevation of a certain position on the north slope of the Tianshan and the annual average temperature value of the altitude of the certain position;
and step 3: calculating the direct reduction rate of the air temperature of the north slope of the Tianshan according to a linear regression equation to obtain the correlation between the elevation and the annual average temperature;
and 4, step 4: establishing a digital elevation model of the north slope of the Tianshan, and calculating the elevation of a certain position based on the digital elevation model;
and 5: according to the annual average temperature-altitude equation and the elevation data of the point, the annual average gas temperature value of any point can be calculated.
2. The method for estimating the annual average air temperature in any area of the Tianshan northern slope as claimed in claim 1, wherein the calculation mode of the constructed annual average temperature-elevation is as follows: y is a + bx,
wherein: y is the annual average air temperature of the requested location; x is the elevation of the position to be obtained, and the unit is km; a. b is an equation coefficient, and is obtained according to DEM data, and the calculation mode is as follows:
wherein: x is the number ofiThe elevation of a meteorological station (i is 1,2, …, n) on the north slope of the Tianshan is km;
the average value of the elevations of all meteorological stations is obtained; y is the annual average gas temperature value of the meteorological station (i is 1,2, …, n) of the north slope of the Tianshan, and the unit is;
the average value of the annual average air temperature of all meteorological sites is obtained;
finally, the following steps are obtained: y is 9.23-3.18 x.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103530499A (en) * | 2013-08-29 | 2014-01-22 | 西南林业大学 | Method for building mountainous area surface temperature base line and application |
| CN107247690A (en) * | 2017-06-09 | 2017-10-13 | 中国科学院寒区旱区环境与工程研究所 | Estimate the method and service terminal of temperature |
| CN109871637A (en) * | 2019-03-06 | 2019-06-11 | 成都信息工程大学 | Temperature evaluation method near the ground under the conditions of a kind of skies |
| CN110427594A (en) * | 2019-07-18 | 2019-11-08 | 北京中科资环信息技术研究院 | It is suitble to the meteorological element data-acquisition system of small-size laboratory |
-
2020
- 2020-09-01 CN CN202010905369.2A patent/CN114117341A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103530499A (en) * | 2013-08-29 | 2014-01-22 | 西南林业大学 | Method for building mountainous area surface temperature base line and application |
| CN107247690A (en) * | 2017-06-09 | 2017-10-13 | 中国科学院寒区旱区环境与工程研究所 | Estimate the method and service terminal of temperature |
| CN109871637A (en) * | 2019-03-06 | 2019-06-11 | 成都信息工程大学 | Temperature evaluation method near the ground under the conditions of a kind of skies |
| CN110427594A (en) * | 2019-07-18 | 2019-11-08 | 北京中科资环信息技术研究院 | It is suitble to the meteorological element data-acquisition system of small-size laboratory |
Non-Patent Citations (3)
| Title |
|---|
| 柯灵红;王正兴;宋春桥;卢振权;: "青藏高原东北部MODIS地表温度重建及其与气温对比分析", 高原气象, no. 02, 15 April 2011 (2011-04-15), pages 14 - 24 * |
| 许云;龙步菊;潘学标;张佳华;: "河北地区气温内插模型及检验方法", 气象与环境学报, no. 02, 15 April 2010 (2010-04-15), pages 2 * |
| 马诺;唐冶;常存;贾丽红;: "基于DEM的气温空间插值方法比较", 干旱气象, no. 03, 30 June 2020 (2020-06-30), pages 114 - 120 * |
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