TY - GEN
T1 - Improved distributed runoff modelling of urbanised catchments by integration of multi-resolution remote sensing
AU - Batelaan, Okke
AU - Chormanski, Jaroslaw
AU - Van De Voorde, Tim
AU - Canters, Frank
PY - 2007
Y1 - 2007
N2 - The runoff amount and intensity on catchment scale is strongly related to the spatial distribution of impervious area cover, which is the predominant cover type in urbanized area. This can only be taken effectively into account when a fullydistributed hydrologieal model is used. In this paper we investigate the assessment of imperviousness by a multiresolution remote sensing technique. The remote sensing approach uses a classified high resolution (HR) Ikonos image that covers part of the research area to train a neural network based sub-pixel classification model that estimates impervious surface cover proportions within the pixels of a medium-resolution (MR) Landsat ETM+ image that covers the entire area. The GIS based distributed WetSpa model was used for studying the influence of different imperviousness scenarios on runoff generation with an hourly time step. It shows that estimates of imperviousness derived from satellite data may strongly improve those made by experts, as well as the necessity of application of fully-distributed grid-based hydrologieal models for urban runoff simulation.
AB - The runoff amount and intensity on catchment scale is strongly related to the spatial distribution of impervious area cover, which is the predominant cover type in urbanized area. This can only be taken effectively into account when a fullydistributed hydrologieal model is used. In this paper we investigate the assessment of imperviousness by a multiresolution remote sensing technique. The remote sensing approach uses a classified high resolution (HR) Ikonos image that covers part of the research area to train a neural network based sub-pixel classification model that estimates impervious surface cover proportions within the pixels of a medium-resolution (MR) Landsat ETM+ image that covers the entire area. The GIS based distributed WetSpa model was used for studying the influence of different imperviousness scenarios on runoff generation with an hourly time step. It shows that estimates of imperviousness derived from satellite data may strongly improve those made by experts, as well as the necessity of application of fully-distributed grid-based hydrologieal models for urban runoff simulation.
KW - Distributed runoff modeling
KW - GIS
KW - Ikonos
KW - Landsat sub-pixel classification
UR - http://www.scopus.com/inward/record.url?scp=82355182153&partnerID=8YFLogxK
U2 - 10.1109/IGARSS.2007.4423989
DO - 10.1109/IGARSS.2007.4423989
M3 - Conference contribution
AN - SCOPUS:82355182153
SN - 1424412129
SN - 9781424412112
T3 - International Geoscience and Remote Sensing Symposium (IGARSS)
SP - 5021
EP - 5024
BT - 2007 IEEE International Geoscience and Remote Sensing Symposium
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007
Y2 - 23 June 2007 through 28 June 2007
ER -