Intercalibration of aquatic ecological assessment methods in the European Union: Lessons learned and way forward

Poikāne, Sandra; Zampoukas, Nikolaos; Borja, Ángel; Davies, Susan P.; Bund, Wouter van de; Birk, Sebastian

doi:10.1016/j.envsci.2014.08.006

Cited by 111 publications

(81 citation statements)

References 45 publications

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“…Analysis showed that based on the four biological parameters (phytoplankton, chlorophyll a, phytobenthos, macrozoobenthos), the comprehensive evaluation of the ecological potential of water reservoirs fulfilled meeting requirements set out by the WFD [12,21]. Assessment of ecological potential is the first step of water body classification [22].…”

Section: Resultsmentioning

confidence: 99%

Ecological Classification of Artificial Reservoirs in Polish Lowlands According to Water Framework Directive Requirements

Mazur

Szoszkiewicz

Nowak

et al. 2017

Pol. J. Environ. Stud.

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Section: Resultsmentioning

confidence: 99%

Ecological Classification of Artificial Reservoirs in Polish Lowlands According to Water Framework Directive Requirements

Mazur

Szoszkiewicz

Nowak

et al. 2017

Pol. J. Environ. Stud.

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“…This is particularly relevant for policy and regulatory implementation as well as restoration management. Within the context of the Water Framework Directive, the intercalibration process aims to obtain comparability of ecological status boundaries and national assessment methods across Europe [52]. The intercalibration has focused on the harmonisation of the position of high/good and good/moderate boundaries for specific ecological quality parameters but has not looked at the precision of these estimates [4,53] which, as shown in this paper, will change according to the data support (i.e., resolution) used.…”

Section: Discussionmentioning

confidence: 99%

Quantifying the Effect of Aerial Imagery Resolution in Automated Hydromorphological River Characterisation

Casado

Ballesteros²,

Wright

et al. 2016

Remote Sensing

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Abstract:Existing regulatory frameworks aiming to improve the quality of rivers place hydromorphology as a key factor in the assessment of hydrology, morphology and river continuity. The majority of available methods for hydromorphological characterisation rely on the identification of homogeneous areas (i.e., features) of flow, vegetation and substrate. For that purpose, aerial imagery is used to identify existing features through either visual observation or automated classification techniques. There is evidence to believe that the success in feature identification relies on the resolution of the imagery used. However, little effort has yet been made to quantify the uncertainty in feature identification associated with the resolution of the aerial imagery. This paper contributes to address this gap in knowledge by contrasting results in automated hydromorphological feature identification from unmanned aerial vehicles (UAV) aerial imagery captured at three resolutions (2.5 cm, 5 cm and 10 cm) along a 1.4 km river reach. The results show that resolution plays a key role in the accuracy and variety of features identified, with larger identification errors observed for riffles and side bars. This in turn has an impact on the ecological characterisation of the river reach. The research shows that UAV technology could be essential for unbiased hydromorphological assessment.

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“…Meeting these criteria has been a major task throughout EU countries, and harmonisation of approaches is particularly challenging in multi-national river basins, such as the DRB. Ensuring comparability of national assessments across Europe requires an inter-calibration exercise, as required by the WFD, but this is still an ongoing issue in large river basins >10.000 km 2 in area (Poikane et al, 2014).…”

Section: Lessons For Future Monitoring In the Danubementioning

confidence: 99%

Developments in water quality monitoring and management in large river catchments using the Danube River as an example

Chapman

Bradley

Gettel

et al. 2016

Environmental Science & Policy

102

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Effective management of water quality in large rivers requires information on the influence of activities within the catchment (urban and rural) throughout the whole river basin. However, traditional water quality monitoring programmes undertaken by individual agencies normally relate to specific objectives, such as meeting quality criteria for wastewater discharges, and fail to provide information on basin-scale impacts, especially in transboundary river basins. Ideally, monitoring in large international river basins should be harmonised to provide a basin-scale assessment of sources and impacts of human activities, and the effectiveness of management actions. This paper examines current water quality issues in the Danube River Basin and evaluates the approach to water quality monitoring in the context of providing information for a basin-wide management plan. Lessons learned from the monitoring programme in the Danube are used to suggest alternative approaches that could result in more efficient generation of water quality data and provide new insights into causes and impacts of variations in water quality in other large international river basins.

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Intercalibration of aquatic ecological assessment methods in the European Union: Lessons learned and way forward

Cited by 111 publications

References 45 publications

Ecological Classification of Artificial Reservoirs in Polish Lowlands According to Water Framework Directive Requirements

Ecological Classification of Artificial Reservoirs in Polish Lowlands According to Water Framework Directive Requirements

Quantifying the Effect of Aerial Imagery Resolution in Automated Hydromorphological River Characterisation

Developments in water quality monitoring and management in large river catchments using the Danube River as an example

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