data sources used might also be useful for similar approaches on national or sub-national scales, combined with relevant national or regional data. The below table gives an overview on data sources for describing GI on European scale, and their possible usability (based on information available in EEA). Approaches Data sets Benefits Disadvantages Possible indicators Urban scale • Green infrastructure • It is based on the • The Urban Atlas No. of Green Urban maps for European Urban Atlas — is initially only cities for infrastructure Atlas data cities can be reliable and available for which using the Urban sets produced and intercomparable 117 cities (with Urban Atlas statistics generated urban planning Large Urban Atlas is for the areas and data with Zones with available percentage of green maps. more than 100 infrastructure. • Future editions of 000 % of green • Green urban the Urban Atlas inhabitants). areas density analysis can are planned This is planned accessible be used to every three to to increase to within 300 characterise five years, so the more than 300 m European cities in approach should cities in 2011. terms of the green provide a good • The link Green roof access afforded to mechanism for between the potential city residents living monitoring Urban Atlas in built-up areas. changes and the codes and the • Linking green speed of change. benefits of Mapping of infrastructure green GI classes and infrastructure functions functions/benefits is, particularly per area of green for some infrastructure. This benefits, provides a relatively weak, quantification of the and the areas by type of relationship function/benefits. needs to be investigated further before quantifiable results can be drawn from it. Landscape scale • Maps with individual • Based on data • Potentially Green Natura 2000 areas sets that are overestimates infrastructure of and green available across the green using Corine Natura infrastructure Europe. infrastructure Land Cover 2000 and corridor layers for • Relative easy to in countries Corine Europe including calculate. where the Land maps focusing on • Excepting the dominant Cover data individual countries selection of landscape sets to illustrate the Corine classes, it matrix is data at a more is a relatively composed of detailed level. objective and natural classes. • The area and robust method • In countries percentage of green • Results are with
data sources used might also be useful for similar approaches on national or sub-national scales, combined with relevant national or regional data. The below table gives an overview on data sources for describing GI on European scale, and their possible usability (based on information available in EEA). Approaches Data sets Benefits Disadvantages Possible indicators Urban scale Green infrastructure using the Urban Atlas Urban Atlas data sets • Green infrastructure maps for European cities can be produced and statistics generated for the areas and percentage of green infrastructure. • Green urban density analysis can be used to characterise European cities in terms of the green access afforded to city residents living in built-up areas. • Linking green infrastructure classes and functions/benefits of green infrastructure. This provides a quantification of the areas by type of function/benefits. • It is based on the Urban Atlas — reliable and intercomparable urban planning data with maps. • Future editions of the Urban Atlas are planned every three to five years, so the approach should provide a good mechanism for monitoring changes and the speed of change. • The Urban Atlas is initially only available for 117 cities (with Large Urban Zones with more than 100 000 inhabitants). This is planned to increase to more than 300 cities in 2011. • The link between the Urban Atlas codes and the benefits of green infrastructure is, particularly for some benefits, relatively weak, and the relationship needs to be investigated further before quantifiable results can be drawn from it. No. of cities for which Urban Atlas is available % of green areas accessible within 300 m Green roof potential Mapping of GI functions per area Landscape scale Green infrastructure using Corine Land Cover of Natura 2000 and Corine Land Cover data sets • Maps with individual Natura 2000 areas and green infrastructure corridor layers for Europe including maps focusing on individual countries to illustrate the data at a more detailed level. • The area and percentage of green • Based on data sets that are available across Europe. • Relative easy to calculate. • Excepting the selection of Corine classes, it is a relatively objective and robust method • Results are • Potentially overestimates the green infrastructure in countries where the dominant landscape matrix is composed of natural classes. • In countries with
GIIR%20WG%20060515%2007%20Monitoring%20options%20DPSI%28R%29%20spatial%20monitoring.docx