GB 12327: Evolution and historical versions
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| GB 12327-2022 | English | RFQ |
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Specifications for hydrographic survey
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GB 12327-2022
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| GB 12327-1998 | English | RFQ |
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Specifications for hydrographic survey
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GB 12327-1998
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| GB 12327-1990 | English | RFQ |
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Specifications for hydrographic survey
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GB 12327-1990
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PDF similar to GB 12327-2022
Basic data | Standard ID | GB 12327-2022 (GB12327-2022) | | Description (Translated English) | Specifications for hydrographic survey | | Sector / Industry | National Standard | | Classification of Chinese Standard | A76 | | Word Count Estimation | 126,181 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB 12327-2022: Specifications for hydrographic survey---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.
Specifications for hydrographic survey
ICS 07.040
CCSA76
National Standards of People's Republic of China
Replacing GB 12327-1998
Hydrographic Code
Published on 2022-07-13
2023-02-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Foreword V
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 General 3
4.1 Basic content 3
4.2 Coordinate system and datum 3
4.3 Projection, framing requirements and standard map 3
4.4 Measurement grades and scales 4
4.5 Basic technical requirements5
5 Technical Design 6
5.1 General requirements 6
5.2 Project Design 6
5.3 Professional Design 6
5.4 Drafting of technical design documents 7
6 Plane Control Measurements 8
6.1 General requirements8
6.2 Picking point 10
6.3 Buried stones 11
6.4 Observations 11
6.5 Data processing 14
7 Elevation Control Survey 16
7.1 General requirements 16
7.2 Leveling 17
7.3 Triangulation Elevation 18
7.4 Transoceanic Elevation Transfer 20
7.5 Data calculation and finishing 20
8 GNSS Controlled Surveys 22
8.1 GNSS surveys of class E (inclusive) and above 22
8.2 GNSS survey requirements for sea control points and survey points 22
9 Water level control 25
9.1 General requirements 25
9.2 Establishment of tide gauge stations 25
9.3 Baseline measurement and water level observation at tide stations 26
9.4 Processing of water level observation data 27
9.5 Datum Determination 28
9.6 Water level correction 29
9.7 Documentation 29
10 Bathymetry 29
10.1 General requirements 29
10.2 Preparation on the drawing 31
10.3 Positioning 31
10.4 Depth measurement 32
10.5 Bathymetry data processing 41
10.6 Compilation of Bathymetry 44
10.7 Bathymetry Quality Check 47
11 Sweeping Sea Survey 48
11.1 General requirements 48
11.2 Side-scan sonar sweeping the sea 48
11.3 3D Imaging Sonar Sweeping the Sea 50
11.4 Synthetic aperture sonar sweeping the sea 50
11.5 Soft (hard) sea sweeper 51
11.6 Ocean magnetometer sweeps the sea 52
11.7 Multi-beam echo sounder sweeping the sea 52
12 Hydrological observations 52
12.1 Thermosalt Determination 52
12.2 Current testing 52
13 Substrate detection 54
13.1 General requirements 54
13.2 Surface sampling 55
13.3 Shallow strata profiling 55
13.4 Contents of measurement results 56
14 Coastal Topographic Survey 56
14.1 General requirements 56
14.2 Instrument Setup and Inspection 57
14.3 Station measurement 58
14.4 Fragment measurement 58
14.5 Shoreline Determination 59
14.6 Dry Beach Measurement 60
14.7 Coastal Topographic Survey 61
14.8 Drawing Edge Mapping and Joining 62
14.9 Data Finishing 63
15 Technical summary, inspection and acceptance and submission of materials 64
15.1 Technical Summary 64
15.2 Inspection and acceptance 65
15.3 Data submission 66
Appendix A (Informative) GNSS Observation Record Format 68
Appendix B (normative) Buried Stone 70
Appendix C (normative) Determination of Meteorological Elements 72
Appendix D (Informative) Calculation of Ranging Correction 73
Appendix E (Informative) Item 75
Appendix F (Informative) Classification and Basic Technical Parameters of Level Series 77
Appendix G (Informative) Two-Difference Correction Coefficient and Height Difference Calculation 78
Appendix H (normative) Setting method of water gauge at tide gauge station 80
Appendix I (Informative) Least Squares Tide Harmonic Analysis 81
Appendix J (Informative) Depth Datum Determination Method 85
Appendix K (Informative) Basic Methods for Determining Mean Sea Level at Short-Term and Temporary Tide Gauge Stations89
Appendix L (Informative) Method for Determining the Effective Control Range of Tide Gauge Stations 90
Appendix M (informative) Basic method of water level correction 92
Appendix N (Informative) Format and Filling Contents of Tide Gauge Station Experience Book and Verification Book 97
Appendix O (Informative) Determination of Ship Dynamic Draft 100
Appendix P (Informative) Single Beam Instrument Difference Determination 102
Appendix Q (Informative) Sound Velocity and Sound Velocity Correction Calculation 103
Appendix R (Informative) Navigation Obstacle Detection List 106
Appendix S (Informative) Sounding Data Arrangement 107
Appendix T (Informative) Recording of Single Beam Echo Sounder Recording Paper and Drawing of Water Level Curve 108
Appendix U (Normative) Bathymetry Sheet Finishing Format 111
Appendix V (Informative) Calculation of the Width of the Sweeping Pass 112
Appendix W (Informative) Calculation of Effective Detection Width of Magnetometer 114
Appendix X (normative) Substrate Classification Standard Table 115
Appendix Y (normative) Topographic Map Sheet Finishing Format 116
Appendix Z (Informative) Field Mosaic Edge Inspection 117
References 118
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 of Standardization Documents"
drafted.
This document replaces GB 12327-1998 "Code for Hydrographic Surveying". Compared with GB 12327-1998, except for structural adjustments and editorial changes
In addition, the main technical changes are as follows.
a) The scope of application of this document has been changed (see Chapter 1, Chapter 1 of the.1998 edition);
b) a chapter on Terms and Definitions was added (see Chapter 3);
c) Added the classification of bathymetry grades, divided the bathymetry into five grades from the first to the fifth grade, and specified the corresponding seabed cover
Cover requirements and detection obstacle size requirements (see 4.4.2);
d) The technical requirements for triangulation are deleted (see 5.2.5.4.1 of the.1998 edition);
e) Deleted circle---circle positioning, hyperbola positioning, etc. [see 6.2.1.1 c) d), 6.2.4, 6.2.5, Appendix M of the.1998 edition];
f) The technical requirements for manual work have been deleted (see 6.9.2 and 6.9.6 of the.1998 edition);
g) Deleted the contents of analog water level correction and outdated instruments and equipment (see 6.9.4.4 and 5.2.4.1 of the.1998 edition);
h) Added the technical requirements for GNSS control measurement (see Chapter 8);
i) Changed the contents of water level control, sweeping survey, hydrological observation, sediment detection, etc. (see Chapter 9, Chapter 11, Chapter 12, Chapter 13,
Chapter 6 of the.1998 edition);
j) Added the technical requirements for depth measurement without tide (see 9.3.1, 10.1.3, 10.4.6.6, 10.4.7, 10.5.2.2);
k) Added technical requirements for airborne laser sounding (see 10.1.1, 10.1.6, 10.4.1.3, 10.4.2.4, 10.4.3.7, 10.4.3.8,
10.5.4);
l) Changed the requirements for the over-limit ratio of the main inspection of the bathymetric survey (see 10.1.9, 6.3.6.7 of the.1998 edition);
m) Added technical requirements for sound velocity profile measurement (see 10.4.5.2, 10.4.5.3, 10.4.5.4, 10.4.5.5);
n) Added a new sweeping measurement technique method (see 11.3, 11.4, 11.6, 11.7);
o) Deleted the technical requirements for bid creation (see Appendix A1 of the.1998 edition);
p) Changed the trimming format of bathymetric map sheets and topographic map sheets (see Appendix U, Appendix Y, Appendix Q and Appendix T of the.1998 edition);
q) Added appendices I, K, J, M, N, R, W, and adjusted the contents of other appendices.
Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed and managed by the Naval Staff of the Chinese People's Liberation Army.
The previous versions of this document and its superseded documents are as follows.
--- First published in.1990 as GB 12327-1990, first revised in.1998;
---This is the second revision.
Hydrographic Code
1 Scope
This document specifies the basic content, measurement methods, accuracy indicators and technical requirements of hydrographic surveying, and describes the corresponding inspection, comparison and evaluation.
estimation method.
This document is applicable to hydrographic surveys of various scales in my country.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document.
GB 12319 Chinese nautical charts
GB/T 12898-2009 National third and fourth level leveling standards
GB/T 17942-2000 National triangulation specification
GB/T 18314-2009 Global Positioning System (GPS) Measurement Specification
GB/T 20257.1-2017 National Basic Scale Map Schema Part 1.1.500 1.1000 1.2000 Topography
diagram schema
GB/T 20257.2-2017 National Basic Scale Map Schema Part 2.1.5000 1.10000 Topographic Map Schema
GB/T 20257.3-2017 National Basic Scale Map Schema Part 3.1.25000 1.50000 1.100000
topographic map
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
hydrographicsurvey
With the main purpose of ensuring the safety of navigation, in order to obtain information on the seabed topography, landform, sediment, navigation aids and navigation obstacles, etc.
including inland waters) and coastal features. It mainly includes control survey, bathymetry survey, coastal topographic survey, etc.
[Source. GB/T 39619-2020, 2.1, with modifications]
3.2
bathymetry sounding
Measurement techniques and methods for determining the vertical distance from a point on the water surface to the bottom and the plane position of the point.
[Source. GB/T 39619-2020, 2.6]
3.3
sweeping survey sweepingsurvey
A measurement of ground-like detection of a specific sea area to find out if there are navigational obstacles in that area or to determine navigable water depths.
[Source. GB/T 39619-2020, 2.15, with modifications]
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