GB/T 39418-2020 English PDF

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GB/T 39418-2020: (Storm surge level)
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 39418-2020	169	Add to Cart	3 days	(Storm surge level)	Valid

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Basic data

Standard ID: GB/T 39418-2020 (GB/T39418-2020)
Description (Translated English): (Storm surge level)
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A45
Word Count Estimation: 9,936
Date of Issue: 2020-11-19
Date of Implementation: 2021-06-01
Regulation (derived from): National Standard Announcement No. 26 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 39418-2020: (Storm surge level)

---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.
(Storm surge level) ICS 07.060 A45 National Standards of People's Republic of China Storm surge level 2020-11-19 released 2021-06-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the Ministry of Natural Resources of the People's Republic of China. This standard is under the jurisdiction of the National Marine Standardization Technical Committee (SAC/TC283). Drafting organization of this standard. National Marine Environmental Forecast Center. The main drafters of this standard. Dong Jianxi, Liang Sendong, Li Tao, Liu Qiuxing, Wu Shaohua, Fu Cifu, Fu Xiang, Li Mingjie, Liu Shichao.

Introduction

The disaster statistics of the "China Marine Disaster Bulletin" show that storm surge disasters account for about 90% of all marine disaster losses. Compile this standard The standard is conducive to standardizing storm surge evaluation, storm surge disaster assessment and other related work, and better serves the people's life and property safety protection and social and economic construction. Storm surge level

1 Scope

This standard specifies the classification method of storm surge intensity level, high tide level over-alert level and storm surge disaster level. This standard applies to storm surge forecasting, storm surge assessment, and related information release.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document. GB/T 15920-2010 Oceanographic Terminology Physical Oceanography GB/T 17839-2011 Verification specification for alert tide level

3 Terms and definitions

The following terms and definitions defined in GB/T 15920-2010 and GB/T 17839-2011 apply to this document. 3.1 Storm surge Local sea surface vibrations caused by strong winds and sudden changes in air pressure accompanying the transit of tropical cyclones, temperate weather systems, maritime squall lines, etc. Fluctuation or non-periodical abnormal increase (decrease) phenomenon. Note. The phenomenon of local sea surface oscillation or non-periodic abnormal increase in storm surge is called storm water increase, referred to as water increase; local sea surface oscillation or non-periodic abnormality in storm surge The reduction phenomenon is called storm water reduction, or water reduction for short. [GB/T 19721.1-2017, definition 3.1] 3.2 Maximum storm surge The maximum value of the hourly increase in water during a storm surge is also called the maximum storm increase. [GB/T 19721.1-2017, definition 3.2] 3.3 Alert tide level A kind of tide level threshold. When the tide level reaches this threshold, there may be dangerous situations along the coast, which must be put on alert to prevent the occurrence of tide disasters. [GB/T 19721.1-2017, definition 3.3] 3.4 Storm surge intensity The magnitude of the largest storm surge during a storm surge. 3.5 Storm surge The possible disaster degree of storm surge is calculated and divided by storm surge intensity and high tide level over-alert degree. ......

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