GB/T 42074-2022 English PDF

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GB/T 42074-2022: Division of climatic seasons
Status: Valid

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Basic data

Standard ID: GB/T 42074-2022 (GB/T42074-2022)
Description (Translated English): Division of climatic seasons
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A47
Classification of International Standard: 07.060
Word Count Estimation: 10,191
Date of Issue: 2022-10-14
Date of Implementation: 2023-02-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 42074-2022: Division of climatic seasons

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Division of climatic seasons ICS 07.060 CCSA47 National Standards of People's Republic of China climate season Published on 2022-10-12 2023-02-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Climatic Seasonal Division Indicators 2 5 Perennial season division method 2 6 Seasonal division method of the current year 3 Reference 6

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by the China Meteorological Administration. This document is under the jurisdiction of the National Standardization Technical Committee on Climate and Climate Change (SAC/TC540). This document is drafted by. National Climate Center, Hohai University, Fujian Provincial Climate Center. The main drafters of this document. Chen Yu, Zhao Lin, He Hai, Lin Xin, Zeng Hongling, Wu Zhiyong, Jiang Yundi, Li Yuan. climate season

1 Scope

This document specifies the index for the division of climate seasons, and describes the methods for determining the perennial seasons and the current year seasons. This document applies to business and services related to climate seasons in meteorology, agriculture, hydrology, tourism and other industries.

2 Normative references

There are no normative references in this document.

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 climaticseason Time period divided by temperature. Note. A year is usually divided into four seasons in the order of spring, summer, autumn and winter. 3.2 5-day moving average Taking a certain day and the previous 4 days as a group of data and calculating the average value of each group of data in a daily delay. 3.3 stable pass steadilypass After the first five consecutive 5-day moving averages (3.2) meet a certain climate seasonal indicator threshold, the 5-day moving average sequence no longer appears below or above this threshold. 3.4 climatologicalnormal climatic state perennial value The average value of meteorological elements for the last 3 consecutive years. Note. According to the relevant regulations of the World Meteorological Organization (WMO), it is updated every year, that is, during the period from.2011 to 2020, the data from 1981 to.2010 is used. The average is taken as its climatic average, and so on. [Source. GB/T 21983-2020, 2.2] 3.5 normalclimaticseason Climatic seasons (3.1) determined by the perennial daily mean temperature series. Note. Including start and end time and length. 3.6 Climatic season (3.1) determined by the current year's daily mean temperature series. Note. Including start and end time and length. ......

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