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GB/T 42417-2023: Code of practice for assessment of water exchange capacity in sea bay
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| GB/T 42417-2023 | English | 279 |
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Code of practice for assessment of water exchange capacity in sea bay
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GB/T 42417-2023
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Basic data | Standard ID | GB/T 42417-2023 (GB/T42417-2023) | | Description (Translated English) | Code of practice for assessment of water exchange capacity in sea bay | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Z10 | | Classification of International Standard | 07.060, 13.060 | | Word Count Estimation | 13,128 | | Date of Issue | 2023-05-23 | | Date of Implementation | 2023-09-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 42417-2023: Code of practice for assessment of water exchange capacity in sea bay---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.
ICS 07:060;13:060
CCSZ10
National Standards of People's Republic of China
Technical regulations for evaluation of bay water exchange capacity
Released on 2023-05-23
2023-09-01 implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 General principles 2
5 Monitoring and Evaluation Method 2
5:1 Scope of application 2
5:2 Basic procedure 2
5:3 Selection of average tidal volume calculation method 3
5:4 Basic data preparation 3
5:5 Calculation of average tidal volume 3
5:6 Calculation of average moisture rate 4
5:7 Evaluation of water exchange capacity 5
6 Simulation evaluation method 5
6:1 Scope of application 5
6:2 Basic procedure 5
6:3 Basic data preparation 6
6:4 Hydrodynamic numerical simulation and verification 6
6:5 Convective-diffusion numerical simulation of conservative tracer substances 6
6:6 Calculation of average half exchange time of water body 6
6:7 Calculation of water exchange matrix 7
6:8 Evaluation of water exchange capacity 8
Reference 9
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:
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: National Marine Environmental Monitoring Center, South China Institute of Environmental Science, Ministry of Ecology and Environment, Ocean University of China:
The main drafters of this document: Zhang Shufang, Zhang Yuming, Liu Yongqing, Cao Xuefeng, Yu Jing, Ye Qin, Zhao Qian, Xing Chuanxi, Yuan Shuai, Shi Wenqi,
Hu Zhanming, Yang Yongjun, Xu Guangpeng, Han Chengwei, Yao Zhigang, Zhou Lingling, Yu Liangliang, Xu Xuefeng:
Technical regulations for evaluation of bay water exchange capacity
1 Scope
This document establishes the general principles for the evaluation of bay water exchange capacity, and specifies the basic procedures for monitoring and evaluation methods and simulation evaluation methods,
Operating instructions, and methods for evaluating bay water exchange capacity:
This document is applicable to the evaluation of the water exchange capacity of bays, and can be referred to for the evaluation of water exchange capacity in other sea areas:
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 12763:1-2007 Marine survey specification Part 1: General principles
GB/T 12763:2-2007 Marine Survey Specification Part 2: Marine Hydrographic Observation
GB 17378:2-2007 Marine Monitoring Specification Part 2: Data Processing and Analysis Quality Control
GB/T 29726-2013 Technical Guidelines for Environmental Impact Assessment of Bay Reclamation Planning
3 Terms and Definitions
The following terms and definitions apply to this document:
3:1
bay seabay
The area of the water area is not less than the area of a semicircle whose diameter is the width of the mouth and is surrounded by land:
[Source: GB/T 18190-2017, 2:1:26, modified]
3:2
assessmentseaarea
The bay or part of the sea within the bay to be assessed:
3:3
spring tide
One to three days after the first and fifteenth day of each month, the tide with a large tidal range is formed by the addition of the tides caused by the moon and the sun:
[Source: GB/T 15920-2010, 2:5:12, modified]
3:4
neaptide
The tide with small tidal range is formed by the subtraction of the tides caused by the moon and the sun around the seventh or eighth day or the 22nd or 3rd day of each month:
[Source: GB/T 15920-2010, 2:5:13, modified]
3:5
intertidal zone
Between the high tide line and the low tide line, the seawater periodically submerges and withdraws from the shoal area:
[Source: GB/T 18190-2017, 2:1:11]
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