IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
Log On
About IAHRDirectoryCommitteesMy IAHRNews & JournalseLibraryeShopEventsJoin IAHRWorld CongressDonate
spacer.gif eLibrary
spacer.gif eLibrary
You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water resources and hydroinformatics : Automated runoff coefficient computation in urban drainage systems using google satellite images and...
Automated runoff coefficient computation in urban drainage systems using google satellite images and fuzzy classification
f designing storm or combined water network systems, there are numerous and repetitive tasks that
require not only substantial time for their execution but also they are very much dependent on judgment and experience of
the design engineer. Such examples are catchment delineation, identification of runoff coefficients and definition of dry
and wet weather flow parameters. Dealing with such tasks in real-life projects is time consuming. This paper provides a
new method and tool to contribute in the automation of such tasks by evaluating satellite imagery obtained from Google
Maps in an automated fashion and using fuzzy logic classification was possible to calculate or estimate the values of
runoff coefficients for different subcatchments within the coverage of the satellite images. A graphical user interface
(Runoff Extractor ver B1.0) was built using Delphi code environment; This GUI allow the final user to download the high
resolution images from the educational license of the Google maps API from the desired area and then calculate the
Runoff characteristics that are needed in order to build the input file for EPA SWMM model. The approach was tested on
one case study: the city of Birmingham (UK), and the results obtained so far are promising when compared with the
outcome of the calibrated model that already exist in the study area.Form Required :
File Size : 813,948 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water resources and hydroinformatics
Date Published : 20/08/2015
Download Now