Home Articles Satellite image, GPS and cartographic data for urban study

Satellite image, GPS and cartographic data for urban study

Bussios Nikolaos

Bussios Nikolaos
Rural and Surveying Engineer,
Thessaloniki, Greece
Email: [email protected]

Ioannis Tsolakidis
Rural and Surveying Engineer,
Serres, Greece
Email: [email protected]
Over the years, satellite based remote sensing data have been successfully utilised for mapping, monitoring, planning and development of urban sprawl, urban land use and urban environment. In this paper satellite images with GPS and cartographic data are integrated to study the potentiality of creating a map of an urban area

Nowadays, Thessaloniki is more than just a city. She is a centre of national range, the biggest in Northern Greece, with a population of more than 1 million people. Greater Thessaloniki is consisted of 45 administrative unities, 43 municipalities and 2 communities. The continuous development of the city makes the effective supervision of her changes extremely difficult, since the size and the land use keep on changing.

Therefore, the necessity of creating a reliable cartographic background of the urban area comes up, comprising as much information as possible. This could be the first step for the study of surface allocation and function throughout the city. Combining such backgrounds – images of different times can indicate, in a descriptive way, the dynamic growth of the city by detecting the tensions of urban growth. This step is part of the required operations for the analysis of a study area which includes fields such as:

  • Physical data
  • Socioeconomic Approach
  • Structural and Organizational Framework
  • Land Use

This specific application refers to the procedure of composing data for the creation of a reliable cartographic background covering the area occupied by the Municipality of Thessaloniki and in which:

  • With the assistance of cartographic data, there is an effort of improving the detection of special urban characteristics (e.g. hospitals, buildings of administration, monuments etc.) through visual interpretation and
  • In order to categorize the various types of land use, there are some special techniques for urban areas used, for their classification.