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HYT0273.4-2022: Technical directives for risk assessment and zoning of marine disaster - Part 4: Sea ice
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Technical directives for risk assessment and zoning of marine disaster - Part 4: Sea ice
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HY/T 0273.4-2022
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Basic data | Standard ID | HY/T 0273.4-2022 (HY/T0273.4-2022) | | Description (Translated English) | Technical directives for risk assessment and zoning of marine disaster - Part 4: Sea ice | | Sector / Industry | Marine Industry Standard (Recommended) | | Classification of Chinese Standard | A45 | | Classification of International Standard | 07.060 | | Word Count Estimation | 19,127 | | Date of Issue | 2022-06-02 | | Date of Implementation | 2022-09-01 | | Issuing agency(ies) | Ministry of Natural Resources of the People's Republic of China | | Summary | This standard specifies the working principles, working procedures, data collection, assessment content and methods, as well as the production and management of results of sea ice disaster risk assessment and zoning. This standard applies to national and provincial scale sea ice disaster risk assessment and zoning work. | HYT0273.4-2022: Technical directives for risk assessment and zoning of marine disaster - Part 4: Sea ice
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Technical directives for risk assessment and zoning of marine disaster - Part 4.Sea ice
ICS 07.060
CCSA45
Marine Industry Standard of the People's Republic of China
Technical Guidelines for Marine Hazard Risk Assessment and Zoning
Part 4.Sea ice
Part 4.Sea ice
Released on 2022-06-02
2022-09-01 Implementation
Released by the Ministry of Natural Resources of the People's Republic of China
Published by China Standard Press
table of contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 working principle 2
5 working procedures 2
6 National scale assessment and zoning3
7 Provincial scale assessment and zoning6
8 Results Management 7
Appendix A (Informative) Division of Assessment Units for Offshore Oil and Gas Production Areas 8
Appendix B (Normative) Sea Ice Disaster Risk Assessment Method 9
Appendix C (Normative) Technical Report Format for Sea Ice Hazard Risk Assessment and Zoning 11
Reference 13
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 HY/T 0273 "Technical Guidelines for Marine Hazard Risk Assessment and Zoning". HY/T 0273 has been published
The following sections.
--- Part 1.Storm surge;
--- Part 3.Tsunami;
--- Part 4.Sea ice;
--- Part 5.Sea level rise.
Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed by the Ministry of Natural Resources of the People's Republic of China.
This document is under the jurisdiction of the National Marine Standardization Technical Committee (SAC/TC283).
This document was drafted by. Beihai Forecasting Center of State Oceanic Administration, Marine Forecasting Station of Shandong Province, Marine Disaster Mitigation Center of Ministry of Natural Resources.
The main drafters of this document. Shang Jie, Yuan Benkun, Huang Juan, Wang Qiang, Guo Jingtian, Guo Kecai, Li Ge, Jiao Yan, Zhao Yiding, Guo Zhixing.
Introduction
Risk assessment and zoning of marine disasters is an important basic work for marine disaster prevention and mitigation, and it is very important for local governments at all levels to effectively deal with marine disasters.
It plays an important guiding role in planning and layout of coastal economic and social development. HY/T 0273 is to guide governments at all levels to develop marine disaster risk
Fundamental and general industry standards for assessment and zoning. Given the length of the document and the mechanisms and causes of various marine disasters
The reasons are different, HY/T 0273 is proposed to be composed of 5 parts.
--- Part 1.Storm surge;
--- Part 2.Ocean waves;
--- Part 3.Tsunami;
--- Part 4.Sea ice;
--- Part 5.Sea level rise.
Technical Guidelines for Marine Hazard Risk Assessment and Zoning
Part 4.Sea ice
1 Scope
This document stipulates the working principles, working procedures, data collection, assessment content and methods, and results of sea ice disaster risk assessment and zoning.
Fruit production and management, etc.
This document is applicable to national and provincial scale sea ice hazard risk assessment and regionalization.
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document.
GB/T 12763 (all parts) Marine survey specification
GB/T 14914 (all parts) Marine observation specification
HY/T 058 Operational Specifications for Marine Survey, Observation and Monitoring Archives
HY/T 0297 Specifications for the preparation of marine hazard risk maps
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
sea ice
All ice that occurs at sea.
[Source. GB/T 19721.3-2017, 3.1, modified]
3.2
sea ice thickness
The vertical distance from the leveled ice surface to the bottom surface of the ice.
[Source. GB/T 19721.3-2017, 3.6, modified]
3.3
severe ice age severe ice period
The number of days between a severe ice day and a melt day.
Note. For the first time in the sea ice age, the amount of sea ice that can be seen on the sea surface for 3 consecutive days is greater than or equal to 80%, and the thickness (T) of sea ice is greater than or equal to 5cm.
The first day is called a severe ice day; the last time in a sea ice age is that the amount of sea ice is greater than or equal to 80% for 3 consecutive days, and the thickness of sea ice is greater than or equal to 5cm.
The last of the 3 days is called Melt Day.
3.4
The area covered by sea ice accounts for the percentage of the distributed sea surface.
[Source. GB/T 14914.2-2019, 11.2.6]
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