GB/T 19721.1-2017The issue of marine forecasts and warnings—Part 1: The issue of storm surge warnings (English PDF)

Foreword

GB/T 19721 "Marine forecast and alarm release" is divided into three parts.

- Part 1. Storm surge alarm release;

- Part 2. Wave Forecast and Alert Release;

Part 3. Sea ice forecast and warning release.

This part is part 1 of GB/T 19721.

This part is drafted in accordance with the rules given in GB/T 1.1-2009.

This section replaces GB/T 19721.1-2005 "Marine Forecast and Alert Release Part 1: Storm Surge Forecast and Alert Release". versus

GB/T 19721.1-2005 compared to the main changes are as follows.

- Added "normative reference documents" (see Chapter 2);

--- modified the definition of "storm surge" (see 3.1, 2005 version 2.1);

- the definition of "storm surge" was deleted (see 2.2 of 2005);

- modified the definition of "maximum storm surge" (see 2.3, 2005 edition 2.3);

- the definition of "tropical cyclones" and "temperate weather systems" (see 3.4, 3.5);

- the deletion of the "purpose", "the basic principles" (see Chapter 3, Chapter 4 of the 2005 edition);

- modified the "grading" (see Chapter 4, 5.1 of 2005);

- modified the alarm requirements (see Chapter 5, 5.2 of 2005);

- "Publish", "Publish", "Archive" (see 2005, 5.3, 5.4, 5.5, Chapter 6);

- Removed the informative appendix "Storm surge alarm example (professional forecast)" (see Appendix A of the 2005 edition);

- an increase in the "tide level" as an informative appendix (see Appendix A);

- Removed the informative appendix "Storm surge emergency alert example (professional forecast)" (see Appendix B of the 2005 edition).

This section is presented by the State Oceanic Administration.

This part is headed by the National Marine Standardization Technical Committee (SAC/TC283).

1 Scope

This part of GB/T 19721 specifies the classification and content requirements of storm surge alarm in coastal areas of China.

This section applies to marine forecasting agencies for storm surge warning services.

2 Normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this document. For undated references, the latest edition (including all modifications) applies to this document.

GB/T 15920-2010 Oceanography Terminology Physical oceanography

Code for approval of tide level GB/T 17839-2011

Tropical cyclone grade GB/T 19201-2006

3 Terms and definitions

GB/T 15920-2010, GB/T 17839-2011, GB/T 19201-2006 Definitions and the following terms and definitions apply to this document.