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GB/T 34298-2017: Classification of snowstorms
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Classification of snowstorms
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GB/T 34298-2017
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Basic data | Standard ID | GB/T 34298-2017 (GB/T34298-2017) | | Description (Translated English) | Classification of snowstorms | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A47 | | Classification of International Standard | 07.060 | | Word Count Estimation | 6,675 | | Date of Issue | 2017-09-07 | | Date of Implementation | 2018-04-01 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 34298-2017: Classification of snowstorms---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.
Classification of snowstorms
ICS 07.060
A47
National Standards of People's Republic of China
Snowstorm weather rating
2017-09-07 Posted
2018-04-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Directory
Preface Ⅰ
Introduction Ⅱ
1 Scope 1
2 Terms and definitions 1
3 Snowstorm weather rating 1
4 Snowstorm index 1
Reference 3
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by China Meteorological Administration.
This standard by the National Meteorological Disaster Prevention and Mitigation Standardization Technical Committee (SAC/TC345) centralized.
This standard was drafted. Heilongjiang Provincial Meteorological Bureau.
The main drafters of this standard. Zhao Guangna, Zhong Youjun, Ma Guozhong, that Jihai, Wu Yan, Guan Ming, Zhang Guihua, Zhang Yue.
Introduction
Snowstorm is a disastrous weather caused by snowfall and gale, which will seriously affect people's production and life and cause great economic loss.
Adversely affect ecology and environment.
Develop a blizzard weather rating, to take advantage of measures to prevent the storm caused by the snowstorm on human activities such as traffic, production and other hazards
Snow to provide a scientific basis for the loss, at the same time for the government departments to initiate disaster contingency plans to provide guidance.
Snowstorm weather rating
1 Scope
This standard specifies the method of classification and classification of blizzard weather.
This standard applies to meteorological and related industries on the classification of blizzard weather levels, other relevant departments may refer to the use.
2 Terms and definitions
The following terms and definitions apply to this document.
2.1
Snowstorm snowstorm
A lot of snow is strong winds with the wind movement weather phenomenon. Usually showed as heavy snowfall, wind speed, low visibility and other inclement weather
phenomenon.
3 snowstorm weather rating
The blizzard weather level is determined according to the blizzard weather index, the blizzard weather level is divided into mild snowstorm weather, moderate storm
Snow weather, snow storm, snowstorm tempest four levels, see Table 1.
Table 1 classification of the snowstorm grade
Level Description
Chinese English
Snowstorm index may affect
Mild Snowstorm Mild Snowstorm 0.8 ≤SWI < 1.6
Traffic congestion may be caused; frequent traffic accidents;
Sounded the normal activities of people
Moderate Snowstorm ModerateSnowstorm 1.6≤SWI < 2.5
Transportation may be blocked; affect power and communications lines
The normal operation of the road; seriously affect people's normal activities
Heavy snowstorm HeavySnowstorm 2.5≤SWI < 4.8
Traffic, railways, civil aviation transport interruption; serious impact on electricity
Force and the normal operation of the communication line; easy to cause personnel
Missing or casualty; easily lead to the collapse of the house; easy to cause
Tree branches
Severe Snowstorm SevereSnowstorm 4.8 ≤SWI ≤ 30.0
Traffic, railways, civil aviation transport interruption; easy to cause electricity
And communication lines interrupted; easily lead to missing persons or
Casualties; easily lead to housing collapse; easily lead to the tree
Wood broken branches or fell to the ground
4 snowstorm index
Three meteorological factors, including the daily snowfall, the maximum wind speed and the minimum daily visibility, were selected as the influencing factors of snowstorm index.
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