Construction method of hundred-year homogenized air temperature daily value sequence observed by ground meteorological station
A construction method and weather station technology, which is applied in the field of construction of a century-old normalized temperature daily value series, can solve the problems of obvious non-uniformity and continuous lack of measurement data, and achieve the effect of improving authenticity and reliability
Active Publication Date: 2021-03-26
天津市气象信息中心
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[0004] In view of this, the present invention aims to propose a construction method of a century-old normalized temperature daily value sequence observed by a ground weather station, so as to solve the problem of the original observed century-by-day average temperature, There are many continuous missing data in the maximum temperature and minimum temperature series, and the problem of non-uniformity is obvious. How to construct a complete and reliable century-scale daily value series
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[0043] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0044] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...
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The invention provides a construction method of hundred-year homogenized air temperature daily value sequence observed by ground meteorological station, which comprises the following steps of: establishing basic data of the hundred-year homogenized air temperature daily value sequence, splicing the data to form a complete hundred-year sequence, performing quality control on the complete hundred-year sequence, performing homogenization test on the hundred-year sequence, and establishing a monthly value reference sequence in the homogenization test; acquiring a breakpoint through inspection; further, under the daily value reference sequence, based on correction of a reference sequence method, obtaining a homogenized air temperature daily value sequence observed for one hundred years; obtaining an optimal interpolation sequence through data interpolation for the homogenized air temperature daily value sequence observed in hundreds of years; and evaluating the optimal interpolation sequence to obtain a final homogenized temperature daily value sequence. The construction method provided by the invention overcomes the difficulty of quantitative analysis of extreme climate change by substitute data; a combinability homogenization analysis method is developed, the authenticity of breakpoint detection is improved, the reliability of correction data is enhanced, and a new data basis is established for the field of extreme climate change research.
Description
technical field [0001] The invention belongs to the technical field of surface meteorological station observation data, and in particular relates to a method for constructing a century-old normalized temperature daily value sequence observed by a surface meteorological station. Background technique [0002] Observation records of weather stations as first-hand information are the most widely used, and compared with other data, they have the advantages of representativeness and accuracy. However, at present, due to issues such as station coverage, data integrity, and non-uniformity of observation sequences, there are still many uncertainties in the centennial-scale climate change characteristics from the 19th century to the middle of the 20th century. There is a lack of reliable observational basis for regional or local climate change laws and predictions of future climate change trends. my country was able to collect the earliest instrumental observation data in the 1840s. ...
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IPC IPC(8): G06F16/2458G01W1/10G06F16/9537G06Q10/06
CPCG06F16/2474G01W1/10G06F16/9537G06Q10/06395Y02A90/10
Inventor 司鹏罗传军王琪王敏姜罕盛
Owner 天津市气象信息中心
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