1、November 2014 Translation by DIN-Sprachendienst.English price group 12No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).I
2、CS 13.060.70!%$“2270198www.din.deDDIN EN 16503Water quality Guidance standard on assessing the hydromorphological features oftransitional and coastal waters;English version EN 16503:2014,English translation of DIN EN 16503:2014-11Wasserbeschaffenheit Anleitung zur Beurteilung der hydromorphologische
3、n Merkmale der bergangs- undKstengewsser;Englische Fassung EN 16503:2014,Englische bersetzung von DIN EN 16503:2014-11Qualit de leau Norme guide pour lvaluation des caractristiques hydromorphologiques des eaux detransition et des eaux ctires;Version anglaise EN 16503:2014,Traduction anglaise de DIN
4、EN 16503:2014-11www.beuth.deDocument comprises 22 pagesIn case of doubt, the German-language original shall be considered authoritative.11.14 DIN EN 16503:2014-11 2 A comma is used as the decimal marker. National foreword This document (EN 16503:2014) has been prepared by Technical Committee CEN/TC
5、230 “Water analysis” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the DIN-Normenausschuss Wasserwesen (DIN Standards Committee Water Practice), Working Committee NA 119-01-03-05-06 AK Biologisch-kologische Gewsseruntersuchung of NA 119-01-03 AA Wasserunter
6、suchung. Designation of the method: Guidance standard on assessing the hydromorphological features of transitional and coastal waters (M 48): Method DIN EN 16503 M 48 This standard has been published to implement the Water Framework Directive (WFD), Directive 2000/60/EC of the European Parliament an
7、d of the Council of 23 October 2000 establishing a framework for Community action in the field of water policy*). Expert assistance and specialized laboratories will be required to perform the analyses described in this standard. Existing safety requirements are to be observed. Depending on the obje
8、ctive of the analysis, a check shall be made on a case-by-case basis as to whether and to what extent additional conditions will have to be specified. This standard has been prepared by the DIN-Normenausschuss Wasserwesen (DIN Standards Committee Water Practice) in collaboration with the Wasserchemi
9、sche Gesellschaft Fachgruppe in der Gesellschaft Deutscher Chemiker (Water Chemistry Society Division of the German Chemical Society). It is part of the series Deutsche Einheitsverfahren zur Wasser-, Abwasser- und Schlammuntersuchung (German standard methods for the examination of water, waste water
10、 and sludge): Guidance standard on assessing the hydromorphological features of transitional and coastal waters (M 48): Standard methods published as DIN Standards are obtainable from Beuth Verlag GmbH, either individually or grouped in volumes. The standard methods included in the loose-leaf public
11、ation entitled Deutsche Einheitsverfahren zur Wasser-, Abwasser- und Schlammuntersuchung will continue to be published by Wiley-VCH Verlag GmbH b) provides information supporting other environmental reporting requirements (e.g. in relation to biodiversity or environmental impact assessment); c) supp
12、orts management and restoration initiatives; d) identifies and defines the main pressures affecting European TraC waters. Note that in this standard, “assessment” is used as a broad term referring to the general description of features and the pressures that impinge upon them. It is not used to impl
13、y the judgement of particular levels of “quality” or “value”, whether related to status under the WFD, MSFD or more generally. WARNING Persons using this European Standard should be familiar with usual laboratory and fieldwork practice. This standard does not purport to address all of the safety pro
14、blems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions. IMPORTANT It is absolutely essential that tests conducted according to this European Standard be carried
15、 out by suitably trained staff. DIN EN 16503:2014-11 EN 16503:2014 (E) 5 1 Scope This European Standard gives guidelines for characterizing the hydromorphology of transitional or coastal (TraC) waters, but does not prescribe detailed methods of assessment. The main aim of this document is to improve
16、 the comparability of hydromorphological survey methods, data processing, and the interpretation and presentation of results. This European Standard: a) lists essential features and processes of TraC waters that should be characterized as part of a hydromorphological survey and used for determining
17、hydromorphological condition; b) gives guidance on strategies for collecting and presenting hydromorphological data depending on the resources available and the anticipated use of the assessment; c) describes how to generate data sets appropriate for monitoring and reporting on the condition of Natu
18、ra 2000 sites designated under the Habitats Directive and the Birds Directive; d) provides guidance on data quality assurance. This European Standard does not deal with biological assessments in TraC waters such as the presence or absence of individual species or community composition, nor does it a
19、ttempt to link specific hydromorphological features with their associated biological communities. However, it is relevant where plants or other organisms form significant structural elements of the habitat (e.g. saltmarshes, biogenic reefs). 2 Terms and definitions For the purposes of this document,
20、 the following terms and definitions apply. 2.1 aquatic macrophyte larger plant of marine and brackish water which is easily seen with the naked eye, including angiosperms and macroalgae EXAMPLE Examples for angiosperms: reeds, saltmarsh and seagrass beds; example for macroalgae: seaweed. SOURCE: EN
21、 16039:2011, 3.1, modified 2.2 attribute specific recorded elements of a hydromorphological feature EXAMPLE Silt and boulders are natural substrate texture attributes, sheet piling and gabions are attributes of engineered banks. SOURCE: EN 16039:2011, 3.2 2.3 bay closing line straight line drawn bet
22、ween prominent physical features on either side of a bay DIN EN 16503:2014-11 EN 16503:2014 (E) 6 2.4 bedform pattern morphology of the seabed Note 1 to entry: The bedform patterns may be simple or complex depending on the size and shape of the system and the nature of the local sediment transport p
23、rocesses. Deposition produces features such as sand and gravel bars, while erosion results in scour features. 2.5 biogenic reef mass consisting of the hard parts of organisms, or of a biogenically constructed frame enclosing detrital particles, in a body of water Note 1 to entry: Most biogenic reefs
24、 are made of corals or associated organisms. 2.6 coastal cell length of coastline confined by natural or artificial barriers across which little or no sediment is transported 2.7 coastal plain estuary submerged coastal river valley 2.8 coastal water body of surface water on the landward side of a li
25、ne, every point of which is at a distance of one nautical mile on the seaward side from the nearest point of the baseline from which the breadth of territorial waters is measured, extending where appropriate up to the outer limit of transitional waters Note 1 to entry: This definition from Article 2
26、 of the EC Water Framework Directive (2000/60/EC) is one example of a definition of coastal water used for legal purposes. 2.9 connectivity linkage within and between water bodies through exchange of water, sediment and organisms 2.10 ecological status expression of the quality of the structure and
27、functioning of aquatic ecosystems, by comparing the prevailing conditions with reference conditions Note 1 to entry: As classified in accordance with Annex V of the EC Water Framework Directive (2000/60/EC). SOURCE: EN 16039:2011, 3.15 2.11 fetch fetch length distance of open water over which the wi
28、nd can blow and generate wind-driven waves SOURCE: EN 16039:2011, 3.19, modified “fetch length” was added as synonym 2.12 fjord long narrow and glacially eroded inlet with steep sides, created in a valley often with a shallow entrance at the mouth DIN EN 16503:2014-11 EN 16503:2014 (E) 7 2.13 headla
29、nd promontory of land projecting into water SOURCE: EN 16039:2011, 3.20 2.14 highest astronomical tide HAT highest tide that can be expected to occur under average meteorological conditions and at the spring and autumn equinox 2.15 hydromorphology physical, hydrological and hydrodynamic characterist
30、ics of transitional and coastal waters including the underlying processes from which they result SOURCE: EN 16039:2011, 3.22, modified 2.16 intertidal area foreshore zone between high and low tide lines 2.17 lagoon expanses of shallow coastal salt water, of varying salinity and water volume, wholly
31、or partially separated from the sea by sand banks or shingle, or, less frequently, by rocks Note 1 to entry: The EC Water Framework Directive (2000/60/EC) classifies lagoons as transitional waters. 2.18 micro-tidal tidal range 2 m 2.19 mixing blending of waters of different characteristics (e.g. tem
32、perature, turbidity, salinity) by turbulence and diffusion, caused by tides, winds, waves, currents and river runoff 2.20 normal tidal limit NTL point at which the level of a river or stream ceases to be affected by the tidal flow 2.21 physiography prominent coastal landform features 2.22 planform v
33、iew of transitional or coastal water body from above EXAMPLE Sinuous, straight. 2.23 reef ridge of rock, or other material, lying seawards of the low water line DIN EN 16503:2014-11 EN 16503:2014 (E) 8 2.24 reference condition condition which is totally or nearly totally undisturbed by human activit
34、y 2.25 residence time retention time length of time it takes for a transitional water, sea loch or fjord to exchange its water Note 1 to entry: For enclosed bays “retention time” is the preferred term. 2.26 saltmarsh area having characteristic vegetation adapted to saline soils and to periodic inund
35、ation by sea water 2.27 sandbank low-energy feature created at the mouth of a river where it flows into the sea Note 1 to entry: Characteristic of the coast, often poorly defined. 2.28 storm surge change in water level as a result of meteorological forcing (wind, high or low barometric pressure) add
36、itional to the astronomic tide; it may be positive or negative 2.29 stratification layering of water column due to density differences resulting from changes in temperature, turbidity or salinity with depth 2.30 substrate rocky or sedimentary material making up the bed of a transitional or coastal w
37、ater body 2.31 subtidal area zone seawards below the mean low tide line 2.32 tidal prism volume of water that flows into a tidal channel on the flood tide SOURCE: EN ISO 772:2011, 2.49 2.33 tidal range difference in level between high water and low water of a tide SOURCE: EN ISO 772:2011, 2.50 2.34
38、tidal regime parameters characterizing tides including levels, periods, frequencies, harmonics, phases and spectra DIN EN 16503:2014-11 EN 16503:2014 (E) 9 2.35 tidal bore tidal phenomenon in which the leading edge of the incoming tide forms a “wave” (or waves) of water that travel up a narrowing es
39、tuary or bay against the direction of the river or bays current 2.36 topography bathymetry sea-bed level with reference to a given elevation 2.37 transitional water body of surface water in the vicinity of river mouths which is partly saline in character as a result of their proximity to coastal wat
40、ers but which is substantially influenced by freshwater flows Note 1 to entry: In accordance with Article 2 of the EC Water Framework Directive (2000/60/EC). 2.38 turbidity reduction of transparency of a liquid caused by the presence of suspended particulate matter SOURCE: ISO 6107-2:2006, 145 2.39
41、wave exposure wave energy environment of a shoreline Note 1 to entry: An important variable, along with substrate composition and water depth, that influences the habitat characteristics of the shoreline. 2.40 wetland habitat occupying the transitional zone between permanently inundated, and general
42、ly dry, environments EXAMPLE Saltmarsh or wetland fed by groundwater. SOURCE: EN 14614:2004, 3.42, modified 3 Principle A standard protocol is described for recording the physical features of TraC waters. The range of features, and the methods used for survey, may vary according to the type of water
43、 body and the objectives of the study. This European Standard provides a general framework for these different methods, details of which can be found in the references cited in the Bibliography. It relies on a combination of measurements, models and expert judgement, which in turn will help to impro
44、ve the current state of knowledge of this subject area. Guidance is given on the hydromorphological features that should be used for characterizing TraC water-body types and for further assessment of hydromorphological integrity through comparisons with reference conditions. The selection of feature
45、s for survey will depend upon the type of pressures affecting the hydromorphology of a water body and the impacts they may cause, taking account of its particular hydromorphological context. DIN EN 16503:2014-11 EN 16503:2014 (E) 10 4 Survey requirements 4.1 General Survey design should record the w
46、ater bodys hydromorphological form and function, the nature and location of pressures acting upon it, and provide an understanding of the likely impacts of those pressures. 4.2 Defining hydromorphological units It is necessary to determine the relevant spatial scales for assessment to support the pl
47、anning of surveys and for describing reference conditions. Units for assessing TraC waters should be defined using morphological features, geographical units and discontinuities in coastlines, water column characteristics, coastal cells, inputs of fresh water, and dimensions. The aim should be to de
48、limit manageable areas for hydromorphological assessment. Coastal waters may be dynamic and long-shore boundaries should be identified. These can be defined at various scales, depending on the purpose of the study. No one definition of the landward boundary of coastal waters accurately fits all conditions. Highest Astronomical Tide limit provides a consistent and definable landward boundary, although internationally recognized baselines are now used to delimit the start of territorial waters. In non-tidal or m
