AbstractManagement and planning of urban
space requires spatially accurate and timely information on land use and
changing pattern. Monitoring provides the planners and decision-makers with
required information about the current state of development and the nature of
changes that have occurred.Remote sensing and Geographical Information system
(GIS) provides vital tools which can be applied in the analysis at the district
and as well, as the city level. Remote sensing becomes useful because it
provides synoptic view and multi- temporal Land uses / Land cover data that are
often required. Though often used only for identifying objects.This study
evaluates the effectiveness of High-Resolution satellite data and computer aided
GIS techniques in assessing the land use change dynamics with in the study area
designated Enschede City, from 1993 to 1998. The methodology adopted involved
the Visual interpretation of land use on acetate overlays according to the land
use classification. Satellite images were used for the year 1993 and 1996 at
scale 1:25000. A minimum delineation unit of 5 mm x 5 mm was used for mapping.
Data was then digitised using ILWIS, the by creating a digital database for
further analysis. Subsequently land use maps were crossed with each other to
identify and quantify the land use changes types. Finally, Hot links and User
Interface was developed so that the information can be provided to the user with
a well-documented procedure. The system in this case will be operated from Arc /
View environment.
IntroductionUrbanisation Urbanisation is
the process in which the number of people living in city increases compared with
the number of people living in rural areas. A country is considered to be
urbanised when over 50% of its population live in urban areas. During the
industrial revolution in 1851, the first countries to become urbanised were
Great Britain and some other European countries. The urbanisation process in the
Netherlands has traditionally been dominated by the housing sector. Recent
discussions on spatial planning on a national level, tend to focus on the
construction of one million new residences for the coming decades, rather than
considering our living environment as the departure point. To fulfil the above
requirement, the rural urban fringe of the eastern part of the Enschede City is
chosen for the further development. Urban land features change in both central
urban area and in urban-rural fringe. Urbanisation process changed the regional
social and economic activities and generates the urban impact on the natural
environment. To detect the dynamic land use / land cover changes, analyse the
social and cultural impacts, evaluate the influence of those changes to natural
environment will increase our knowledge of understanding of human-environment
interactions. Remote Sensing as Monitoring Technique> Urban planning requires
data on changing land use, urban sprawl and the environment. This leads to the
needs for monitoring by updating the knowledge to support the decision making at
the suitably frequent intervals. Monitoring of the land use / land cover
requires the support of two parameters-spatial resolution and temporal
frequencies. Based on these two properties, Townshed (1977) has defined four of
phenomena to be monitored and consequently four types of monitoring system. The
relationship among four types of phenomena and monitoring system can be
elaborated as:
- Rapid changes of large object .For this a low spatial resolution and high
temporal frequencies are required.
- Rapid changes of small objects. These require both high spatial and temporal
resolution.
- Slow changes of large objects. This needs a low temporal frequency and low
spatial resolution.
- Slow changes of small objects. For this a high spatial resolution are
required and low temporal resolution are required.