Session 1 - Montefiore

50
Annex: Data and methodological approach
• discontinuous urban fabric (112 according to
CLC code);
• industrial or commercial units (121 according to
CLC code);
• green urban areas (141 according to CLC code).
In addition port areas, airports, and sport and
leisure facilities, are also included if they are
neighbours of the core classes or are contiguous with
the core classes.
Once UMZ have been identified according to
the procedure outlined above, a second step is
undertaken to include road and rail networks, and
water courses, if they within 300 m of the UMZ
defined in the first step. Finally, forest and scrub
(311, 312, 313, 322, 323, 324 CLC code) are also
included if they are completely within the core
classes.
The UMZ has been delineated for CLC2000 (with
reference year 2000). In order to reduce the large
number of UMZs identified and work with a
relevant subset, only UMZs with more than 100 000
inhabitants have been selected. The allocation of the
population has been undertaken as follows:
• EU-25: Population was derived multiplying
land cover classes by Population Density Raster
provided by JRC. The source data was from
Eurostat (2001).
Overview of the main databases used in this report
Data source MOLAND Corine land cover 1990 Corine land cover 2000
Responsible authority JRC EEA EEA
Period Start date 1950 1986 1999
End date 2000 1995 2001
Geographic coverage 28 cities and 6 wider regions
in Europe
Urban sprawl in Europe
In this study are included:
Belgrade, Bilbao, Bratislava,
Brussels, Copenhagen,
Dresden, Dublin, Grenoble,
Helsinki, Iraklion,
Istanbul, Lyon, Marseille,
Milan, Munich, Palermo,
Pordenone, Porto, Prague,
Sunderland, Tallinn, Trieste,
Udine, Vienna
Spatial resolution Minimum mapping unit 1 ha
for the artificial surfaces
and 3 ha for non-artificial
surfaces
Temporal coverage mid-1950s, late 1960s,
mid-1980s and late 1990s
• Non-EU-25: Population data was derived from
the CITYPOPULATION (www.citypopulation.
de) database, which in turn collects the
information from national statistical offices. Data
is provided by settlement, and settlements are
then aggregated according to UMZ and data
from 2001 added.
Urban areas in MOLAND
The area of investigation was selected on the basis
of the contiguous artificial surface or core area of
the city, plus a peri-urban buffer zone. The former
usually corresponds to the Artificial Surface class of
the Corine land cover map and equals an area (A).
The buffer zone was calculated as follows:
Buffer zone width = 0.25 x √A (square root)
The buffer zone typically extends the urban area by
approximately twice the core area. The calculated
buffer has often been modified and adapted to the
neighbouring structures in order to avoid excluding
or cutting land uses of major significance such as
an airport, village or, simply, the administrative
boundaries. In this report urban area refers to the
area that combines the core area and the buffer
around it. The urban area is therefore always
larger than the city, e.g. Munich includes the city of
Munich and 44 surrounding municipalities either
completely or partially.
EU-25 (with the exception
of Sweden, Cyprus, Malta),
Bulgaria, Croatia, and
Romania
Minimum mapping unit
25 ha
EU-25 Member States of
the EU and Albania, Bosnia
and Herzegovina, Bulgaria,
Croatia, Liechtenstein,
Macedonia
Minimum mapping unit
25 ha
Minimum change detection
5 ha
1990 +/– 8 2000 +/– 3 years
Quality Accuracy > = 85 % Accuracy > = 85 % Accuracy > = 85 %