GB/T 19721.4-2022The issue of marine forecasts and warnings—Part 4: The issue of tsunami warnings (English PDF)

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 for Standardization Documents" drafting.

This document is part 4 of GB/T 19721 "Issuance of Marine Forecasts and Warnings". GB/T 19721 has published the following parts.

--- Part 1: Storm surge warning issued;

--- Part 2: Wave forecast and warning issuance;

--- Part 3: Sea ice forecast and warning issuance;

--- Part 4: Tsunami warning issued;

--- Part 5: SST forecast release.

Introduction

GB/T 19721 "Issuance of Marine Forecasts and Warnings" aims to guide the issuance of marine forecasts and warnings, establish the forecast and The principles, contents and technical requirements of the alert release are proposed to be composed of 6 parts.

--- Part 1: Storm surge warning issued. The purpose is to stipulate the classification and content requirements of storm surge warnings in coastal areas of our country.

--- Part 2: Wave forecasts and warnings issued. The purpose is to specify the classification and content requirements of wave forecasts and warnings.

--- Part 3: Sea ice forecast and warning issued. The purpose is to define the classification of sea ice forecasts and warnings in the Bohai Sea and the northern part of the Yellow Sea, content requirements.

--- Part 4: Tsunami warning issued. The purpose is to stipulate the classification and content requirements of tsunami warnings in coastal areas of our country.

--- Part 5: SST forecast release. The purpose is to stipulate the classification and content requirements of SST forecast in my country.

--- Part 6: Current forecast release. The purpose is to stipulate the classification and content requirements of ocean current forecasting in my country.

The issuance of tsunami warnings began in 2006.In recent years, with the development of tsunami warning issuance and the need for marine disaster prevention and mitigation, With the continuous improvement of demand, the tsunami warning service urgently needs corresponding standards and specifications. In order to meet the actual needs of tsunami warning work, further improve The scientificity and practicability of tsunami disaster response, unified standardization of production and release of tsunami warning products.

The preparation of this document refers to the "Marine Disaster Emergency Plan" (2019) issued by the Ministry of Natural Resources, focusing on tsunami warning and information products.

Classification is established, and the content and format of different products are standardized. This document provides a unified framework for the release of tsunami warning products, It is convenient for the standardized production of tsunami warning products, and at the same time, it is consistent with related international tsunami warning products, which can better serve our country Tsunami disaster early warning business to reduce disaster losses. Marine Forecasts and Warnings Issued Part 4: Tsunami Warning Issued

1 Scope

This document specifies the classification, content and format of tsunami warnings.

This document is applicable to the earthquake and tsunami warning services carried out by marine forecasting agencies. Issue tsunami warnings for volcanoes, landslides, and other factors Can refer to use.

2 Normative references

This document has no normative references.

3 Terms and Definitions

The following terms and definitions apply to this document.