17.120.20 明渠中流量的测量 标准查询与下载
共找到 565 条与 明渠中流量的测量 相关的标准，共 38 页
Hydrometry. Catching-type liquid precipitation measuring gauges
- ICS
- 17.120.20
- CCS
- 发布
- 2021-09-28
- 实施
- 2021-09-28
This document specifies the typical requirements of instrumentation for measuring liquid precipitation, primarily for the purpose of hydrological and meteorological observation. This document is applicable to both non-recording and recording catching-type precipitation gauges for the measurement of liquid precipitation. This document covers design criteria for the gauges and elements to be considered in their construction. This document does not include specification, design and installation conditions. NOTE Since the measurement of solid precipitation is outside the scope, the disadvantages of solid precipitation apply to all gauges listed in Annex A. The measurement of solid precipitation and associated disadvantages are well documented in Reference [1].
Hydrometry — Catching-type liquid precipitation measuring gauges
- ICS
- 17.120.20
- CCS
- 发布
- 2021-09-24
- 实施
ISO/TR 9210:2017 provides guidelines for discharge measurements in meandering and braided rivers, and from bridges, following the provisions of ISO 748.
Hydrometry — Measurement in meandering river and in streams with unstable boundaries
- ICS
- 17.120.20
- CCS
- 发布
- 2021-07-01
- 实施
This document specifies a method of determining discharge in open channels from observations of the surface slope and cross-sectional area of the channel. It is applicable to use under special conditions when direct measurement of discharge by typically more accurate methods, such as the velocity-area method, is not possible. Generally, the method can be used to determine discharge a) for a peak flow that left high-water marks along the stream banks, b) for a peak flow that left marks on a series of water-level gauges or where peak stages were recorded by that series of gauges, and c) for flow observed at the time of determining gauge heights from a series of gauges. The method is commonly used to undertake the extension of stage?discharge relationships above the highest gauged flows. It does not apply to determining discharges in tidal reaches.
Hydrometry — Slope-area method
- ICS
- 17.120.20
- CCS
- 发布
- 2021-07-01
- 实施
ISO 18365:2013 gives requirements for the establishment and operation of a gauging station for the measurement of stage, or stage and discharge, of a lake, reservoir, river or canal or other artificial open channel. It also describes how a gauging station utilising one of the measurement methods listed should be operated and maintained. Requirements are provided for stage only measurement stations, stage-discharge stations and direct-discharge measurement stations in natural channels, as well as for stage-discharge stations with artificial structures. Additionally, some requirements are given for measurements under difficult conditions, such as under ice conditions.
Hydrometry — Selection, establishment and operation of a gauging station
- ICS
- 17.120.20
- CCS
- 发布
- 2021-07-01
- 实施
This Technical Report deals with the use of boat-mounted acoustic Doppler current profilers (ADCPs) for determining flow in open channels without ice cover. It describes a number of methods of deploying ADCPs to determine flow. Although, in some cases, these measurements are intended to determine the stage-discharge relationship of a gauging station, this Technical Report deals only with single determination of discharge. The term ADCP has been adopted as a generic term for a technology that is manufactured by various companies worldwide. They are also called acoustic Doppler velocity profilers (ADVPs) or acoustic Doppler profilers (ADPs). ADCPs can be used to measure a variety of parameters, such as current or stream flow, water velocity fields, channel bathymetry and estimation of sediment concentration from acoustic backscatter. This Technical Report is generic in form and contains no operational details specific to particular ADCP makes and models. Accordingly, to use this document effectively, it is essential that users are familiar with the terminology and functions of their own ADCP equipment.
Hydrometry — Acoustic Doppler profiler — Method and application for measurement of flow in open channels
- ICS
- 17.120.20
- CCS
- 发布
- 2021-07-01
- 实施
Hydrometry - Measurement of liquid flow in open channels - Velocity area methods using point velocity measurements (ISO/FDIS 748:2021)
- ICS
- 17.120.20
- CCS
- 发布
- 2021-07-00
- 实施
Hydrometry - Water level measuring devices (ISO/DIS 4373:2021)
- ICS
- 17.120.20
- CCS
- 发布
- 2021-06-15
- 实施
- 2021-06-15
Hydrometry - Water level measuring devices (ISO/DIS 4373:2021)
- ICS
- 17.120.20
- CCS
- 发布
- 2021-05-00
- 实施
Hydrometry. Acoustic Doppler profiler. Method and application for measurement of flow in open channels from a moving boat
- ICS
- 17.120.20
- CCS
- 发布
- 2021-03-16
- 实施
- 2021-03-16
Le présent document fournit une compréhension de la nature de l'incertitude de mesure et son importance pour l'estimation de la \
Hydrometric uncertainty guidance (HUG)
- ICS
- 17.120.20
- CCS
- 发布
- 2021-03-03
- 实施
- 2021-03-03
This document gives guidelines for the use of boat-mounted acoustic Doppler current profilers (ADCPs) for determining flow in open channels. It describes a number of methods of deploying ADCPs to determine flow. Although, in some cases, these measurements are intended to determine the stagedischarge relationship of a gauging station, this document deals only with single determination of discharge. ADCPs can be used to measure a variety of parameters, such as current or stream flow, water velocity fields, and channel bathymetry. As a potential application, an idea of bedload discharge can be obtained applying the bottom track velocity, while suspended sediment flow can be obtained applying the acoustic backscatter and the sonar equation. This document is generic in form and contains no operational details specific to particular ADCP makes and models.
Hydrometry - Acoustic Doppler profiler - Method and application for measurement of flow in open channels from a moving boat
- ICS
- 17.120.20
- CCS
- N12
- 发布
- 2021-03-00
- 实施
Hydrometry. Calibration of current-meters in straight open tanks
- ICS
- 17.120.20
- CCS
- 发布
- 2021-01-15
- 实施
- 2021-01-15
This document specifies a calibration method for mechanical type, electromagnetic type and acoustic type hydrometric current-meters used for point velocity measurement of flowing water. The method requires towing the instrument through still water in a straight open tank. It includes measuring apparatus, the calibration procedure, the method of presenting the results and the uncertainties associated with the method.
Hydrometry - Calibration of current-meters in straight open tanks
- ICS
- 17.120.20
- CCS
- A53
- 发布
- 2021-01-00
- 实施
Hydrometry — Echo sounders for water depth measurements
- ICS
- 17.120.20
- CCS
- 发布
- 2020-12-30
- 实施
Hydrometry — Field measurement of discharge in large rivers and rivers in flood
- ICS
- 17.120.20
- CCS
- 发布
- 2020-12-30
- 实施
Hydrometry — Measurement of liquid flow in open channels —Part 2: Determination of the stage-discharge relationship
- ICS
- 17.120.20
- CCS
- 发布
- 2020-12-30
- 实施
Hydrometry — Measurement of liquid flow in open channels —Part 2: Determination of the stage-discharge relationship
- ICS
- 17.120.20
- CCS
- 发布
- 2020-12-30
- 实施
Measurement of liquid flow in open channels - Equipment for the measurement of discharge under ice conditions
- ICS
- 17.120.20
- CCS
- 发布
- 2020-12-30
- 实施
Hydrometry — Water level measuring devices
- ICS
- 17.120.20
- CCS
- 发布
- 2020-12-30
- 实施
