inflow and infiltration: a qualitative approach
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Inflow and Infiltration:A Qualitative Approach
Anna BoersmaGIS for Water ResourcesNovember 20, 2012
Outline•Project Overview•Design Factors•Model Spreadsheet•Results•Conclusion
Design Factors•Pipe age•Empirical coefficient•Sewer type•Pipe area•Soil properties
Sources: Esri, DeLorme, NAVTEQ, TomTom, Intermap, iPC,USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL,Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong),and the GIS User Community±0 2 4 6 81
Miles
Overall, Emperical Quality of Pipleine
ResultsMissing_Info
0-2
2-4
4-6
6-8
Sources: Esri, DeLorme, NAVTEQ, TomTom, Intermap, iPC,USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL,Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong),and the GIS User Community±0 2 4 6 81
Miles
Overall, Emperical Quality of Pipleine
ResultsMissing_Info
0-2
2-4
4-6
6-8
Conclusions/Future Work•Process provides good starting areas•GIS a needed tool for analysis•Future: Correlate spreadsheet to field
data
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