CEN/TS 17171:2018

Management of observed hydrometric data - Guidance

This document gives recommendations for the management of observed hydrometric data, including raw data and other data as well as statistics derived from these observations. Although the principles of data management can be applied to all hydrometric observations, particular focus is placed on measurements of precipitation, water level (including stage), volume and discharge in open channels.
NOTE   The range of sites where water levels, and sometimes flow, are measured includes lakes, reservoirs, rivers, canals, tidal waters, sewers, wells, and boreholes.
The document covers metadata associated with hydrometric data, including recommendations for the production and management of descriptive, analytical and statistical material relating to sites where and measuring techniques, by which hydrometric data are collected. The recommendations of this document can be applied to some forms of data directly derived from observational records (for example, summary time series of monthly mean river flows). While not primarily designed for the management of data resulting from more complex numerical models or spatially aggregated data sets (for example, remotely-sensed data), many of the recommendations are applicable for such types of data.
This document does not cover the field collection of data or its transmission, but focuses on the management of data once they have been received in a hydrometric information management system.

Mangement gemessener hydrometrischer Datensätze - Empfehlungen

Gestion des données hydrométriques observées - Recommandations

Vodenje opazovanih hidrometričnih podatkov - Navodilo

Ta evropski standard podaja priporočila za vodenje opazovanih hidrometričnih podatkov, vključno z neobdelanimi podatki ter drugimi podatki in statistiko, ki izhajajo iz teh opažanj.

General Information

• Status: Published
• Publication Date: 31-Jul-2018
• ICS: 07.060 - Geology. Meteorology. Hydrology
• ICS: 35.240.70 - IT applications in science
• Technical Committee: CEN/TC 318 - Hydrometry
• Drafting Committee: CEN/TC 318/WG 17 - Management of observed hydrometric data
• Current Stage: 9020 - Submission to 2 Year Review Enquiry - Review Enquiry
• Start Date: 15-Oct-2024
• Completion Date: 15-Oct-2024
• Ref Project: SIST-TS CEN/TS 17171:2018 - Management of observed hydrometric data - Guidance

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2018
9RGHQMHRSD]RYDQLKKLGURPHWULþQLKSRGDWNRY1DYRGLOR
Management of observed hydrometric data - Guidance
Mangement gemessener hydrometrischer Datensätze - Empfehlungen
Gestion des données hydrométriques observées - Recommandations
Ta slovenski standard je istoveten z: CEN/TS 17171:2018
ICS:
07.060 Geologija. Meteorologija. Geology. Meteorology.
Hidrologija Hydrology
35.240.70 Uporabniške rešitve IT v IT applications in science
znanosti
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN/TS 17171
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
August 2018
TECHNISCHE SPEZIFIKATION
ICS 07.060; 35.240.70
English Version
Management of observed hydrometric data - Guidance
Gestion des données hydrométriques observées - Mangement gemessener hydrometrischer Datensätze -
Recommandations Empfehlungen
This Technical Specification (CEN/TS) was approved by CEN on 26 February 2018 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 17171:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 5
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Principles of hydrometric data management . 8
4.1 The requirement for data management . 8
4.2 The sequence of data management . 8
4.3 Duty of care . 9
4.3.1 General . 9
4.3.2 Legacy data . 9
4.4 Data types and terminology . 10
4.5 Time series data . 10
4.5.1 General . 10
4.5.2 Time of observation . 10
4.5.3 Derived data terminology . 12
4.5.4 Resolution of data storage . 12
4.5.5 Uncertainty . 13
4.6 Metadata and descriptive material . 13
4.7 Maximizing data utility . 13
4.7.1 Availability of metadata . 13
4.7.2 Data quality control . 14
4.7.3 Data gap infilling . 15
4.7.4 Regular data reviews . 15
4.8 Data storage considerations . 15
4.8.1 Data storage . 15
4.8.2 Changes to data . 15
4.8.3 Data disposal . 15
4.8.4 Electronic data storage system considerations . 16
4.8.5 Tapes, charts and other data in paper format . 16
4.8.6 Data security . 16
4.8.7 Data rescue . 17
4.9 Archiving hydrometric data: national collections. 17
4.10 Electronic transfer of data . 17
5 Metadata . 18
5.1 General . 18
5.2 Monitoring station/site/point metadata . 18
5.2.1 General . 18
5.2.2 Station identifier . 19
5.2.3 Station description . 19
5.2.4 Geographical location . 20
5.2.5 Operating period . 20
5.3 Observation metadata . 20
5.3.1 General . 20
5.3.2 Data set metadata . 20
5.3.3 Data flags and comments . 20
6 Precipitation data . 21
6.1 Raw data . 21
6.1.1 Data to be recorded. 21
6.1.2 Additional raw data for manual observations . 21
6.2 Resolution of data storage . 21
6.3 Data processing and formatting . 21
6.3.1 General . 21
6.4 Quality control of precipitation data . 21
6.4.1 General . 21
6.4.2 Levels of quality control of precipitation data . 21
6.4.3 Methods for quality control of precipitation data . 22
6.4.4 Quality control of frozen precipitation . 22
6.5 Precipitation specific metadata . 22
7 Water level data . 23
7.1 Raw data . 23
7.1.1 Data to be recorded. 23
7.1.2 Types of level data . 23
7.1.3 Regular measurements and event data . 23
7.1.4 Additional raw data for continuous measurements . 24
7.1.5 Groundwater levels and water levels in reservoirs . 25
7.2 Quality control of water level data . 25
7.2.1 General . 25
7.2.2 Levels of quality control of water level data . 25
7.2.3 Methods for quality control of water level data . 25
7.2.4 Data estimation and infilling . 26
7.3 Water level specific metadata . 27
8 Velocity and discharge data . 27
8.1 Raw data . 27
8.1.1 Data to be recorded. 27
8.1.2 Additional raw data for irregular/spot measurements . 28
8.1.3 Additional raw data for regular or fixed
...