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TitleA SIMPLE PROCEDURE TO HARMONIZE CLASS BOUNDARIES OF ASSESSMENT SYSTEMS AT THE PAN-EUROPEAN SCALE
AbstractA procedure for a large scale harmonization of assessment systems is delineated. The data collected for the two E.U. co-funded projects STAR and AQEM have been used as a benchmark dataset against which a test dataset derived from Italian standard monitoring programs was compared. A central step in the procedure adopted is the calculation of Intercalibration Common Metrics (STAR_ICMs). For both the benchmark and test datasets, six metrics were calculated, normalized and averaged to obtain an ICM index. The median values obtained for this index within each of the High and Good status classes, as defined within the STAR/AQEM dataset, were compared to the classes defined by the National method applied in Italy before WFDapproval. The process of harmonization involved the repositioning of the boundaries between Italian method quality classes until no more differences were found with the values observed in the STAR/AQEM samples. The re-setting of the Italian assessment boundaries by a step-by-step procedure lead to comparable STAR_ICM index values in the two datasets. Within this example, small refinements of the boundaries between high/good and good/moderate status were sufficient to harmonize the Italian assessment quality classes to the benchmark classification. Once a benchmark dataset is agreed among different countries, the procedure outlined can be easily applied to compare and harmonize assessment systems within and outside Europe. The main scientific and practical advantages of the procedure are listed and commented, especially facing the next steps of the Water Framework Directive Intercalibration process.
SourceEnvironmental science & policy 10, pp. 709–724
KeywordsWFDIntercalibrationMetricRiverInvertebrates
JournalEnvironmental science & policy
EditorElsevier Science,, Exeter, Regno Unito
Year2007
TypeArticolo in rivista
DOI10.1016/j.envsci.2007.03.005
AuthorsBUFFAGNI A., ERBA S., FURSE M.T.
Text42244 2007 10.1016/j.envsci.2007.03.005 ISI Web of Science WOS 000251305800011 WFD Intercalibration Metric River Invertebrates A SIMPLE PROCEDURE TO HARMONIZE CLASS BOUNDARIES OF ASSESSMENT SYSTEMS AT THE PAN EUROPEAN SCALE BUFFAGNI A., ERBA S., FURSE M.T. CNR IRSA Water Research Institute, via Della Mornera, 25 20047 Brugherio MI , Italy; CEH Centre for Ecology and Hydrology, Winfrith Tehnology Centre, Dorchester, Dorset DT2 8ZD, United Kingdom A procedure for a large scale harmonization of assessment systems is delineated. The data collected for the two E.U. co funded projects STAR and AQEM have been used as a benchmark dataset against which a test dataset derived from Italian standard monitoring programs was compared. A central step in the procedure adopted is the calculation of Intercalibration Common Metrics STAR_ICMs . For both the benchmark and test datasets, six metrics were calculated, normalized and averaged to obtain an ICM index. The median values obtained for this index within each of the High and Good status classes, as defined within the STAR/AQEM dataset, were compared to the classes defined by the National method applied in Italy before WFDapproval. The process of harmonization involved the repositioning of the boundaries between Italian method quality classes until no more differences were found with the values observed in the STAR/AQEM samples. The re setting of the Italian assessment boundaries by a step by step procedure lead to comparable STAR_ICM index values in the two datasets. Within this example, small refinements of the boundaries between high/good and good/moderate status were sufficient to harmonize the Italian assessment quality classes to the benchmark classification. Once a benchmark dataset is agreed among different countries, the procedure outlined can be easily applied to compare and harmonize assessment systems within and outside Europe. The main scientific and practical advantages of the procedure are listed and commented, especially facing the next steps of the Water Framework Directive Intercalibration process. 10 http //www.sciencedirect.com/science/article/pii/S1462901107000445 A simple procedure to harmonize class boundaries of assessment systems at the pan European scale_Buffagni_2007 ICprocedure_EnvSciPol_Buffagnietal07.pdf Articolo in rivista Elsevier Science, 1462 9011 Environmental science policy Environmental science policy Environ. sci. policy Environmental science policy. Environmental science and policy andreastefano.buffagni BUFFAGNI ANDREA STEFANO stefania.erba ERBA STEFANIA TA.P04.016.001 Caratteristiche ecologiche di comunita acquatiche in ambienti fluviali e lagunari TA.P04.032.003 La risposta delle comunita acquatiche bioindicatori e WFD