ISO 6420:2016
Hydrometry — Position fixing equipment for hydrometric boats
ISO 6420:2016 specifies methods of determining the position of hydrometric boats based on satellite navigation systems and/or with respect to known points on the banks of rivers, estuaries or lakes. It applies to electronic positioning equipment and conventional surveying techniques.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements for position fixing
5 Position fixing equipment for streamgauging and sediment sampling
5.1 General
5.2 Tapes and tag lines
5.3 Global navigation satellite systems
5.3.1 General
5.3.2 Hydrometric application
5.3.3 System specifications
5.4 Targets and electronic distance measuring equipment
5.4.1 General
5.4.2 Targets
5.4.3 Electronic distance measuring devices
5.5 Electronic survey instruments
5.6 Theodolites
5.6.1 Theodolites and stadia
5.6.2 Angular technique
6 Position fixing equipment for morphological surveys
6.1 General
6.2 Global navigation satellite systems
6.3 Electronic surveying instruments
6.4 Theodolites and stadia rods
7 Uncertainty
7.1 Definition of uncertainty
7.2 Uncertainty of position fixing for streamgauging and sediment sampling
7.2.1 General
7.2.2 Tag lines
7.2.3 Global navigation satellite systems
7.2.4 Targets and distance measuring devices
7.2.5 Electronic surveying instruments
7.2.6 Theodolites
7.3 Uncertainty of position fixing for morphological surveys
7.3.1 General
7.3.2 Global navigation satellite systems
7.3.3 Electronic surveying instruments
7.3.4 Triangulation method using theodolites
Annex A (informative) Evaluation of uncertainty components
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements for position fixing
5 Position fixing equipment for streamgauging and sediment sampling
5.1 General
5.2 Tapes and tag lines
5.3 Global navigation satellite systems
5.3.1 General
5.3.2 Hydrometric application
5.3.3 System specifications
5.4 Targets and electronic distance measuring equipment
5.4.1 General
5.4.2 Targets
5.4.3 Electronic distance measuring devices
5.5 Electronic survey instruments
5.6 Theodolites
5.6.1 Theodolites and stadia
5.6.2 Angular technique
6 Position fixing equipment for morphological surveys
6.1 General
6.2 Global navigation satellite systems
6.3 Electronic surveying instruments
6.4 Theodolites and stadia rods
7 Uncertainty
7.1 Definition of uncertainty
7.2 Uncertainty of position fixing for streamgauging and sediment sampling
7.2.1 General
7.2.2 Tag lines
7.2.3 Global navigation satellite systems
7.2.4 Targets and distance measuring devices
7.2.5 Electronic surveying instruments
7.2.6 Theodolites
7.3 Uncertainty of position fixing for morphological surveys
7.3.1 General
7.3.2 Global navigation satellite systems
7.3.3 Electronic surveying instruments
7.3.4 Triangulation method using theodolites
Annex A (informative) Evaluation of uncertainty components
Bibliography