The land use classification is usually produced by hand using different detailed maps which have been produced by aerial picturing or direct processes. The use of satellite images has been incorporated widely in the recent years. We present a land use classification which has been made by using a LANDSAT-5 image (October. 1987). The ANA (San José et al., 1994) mesoscale air quality system is used to study and compare the results on ozone concentrations at surface level when the automatic land use classification by using the satellite image is used and when the handmade classification is used. We present results on four different Madrid monitoring stations for ozone for both land use classifications. Two important results can be concluded: the changes on the ozone concentrations due to different land use classifications are important and can lead to different and wrong conclusions. The satellite information when applied the automatic land use classification seems to be more precise and accurate than the handmade land use classification. A full and complete statistical study should be done in the future however computational power limitations are an important obstacle for such a experiment.
Weitere Kapitel dieses Buchs durch Wischen aufrufen
- The Importance of Land Use Classification on Mesoscale Air Quality Models: A Sensitivity Study over Madrid
Roberto San José
Juan F. Prieto
Rosa M. González
- Springer US