[datameet] Re: GIS analysis

2017-03-23 Thread Sharad Lele
@Nagesh: I strongly endorse Dilip's warning. And I would add another question: One needs to be clear what one is trying to find out (question comes before tool) and whether the answer is already approximately known before hitting it with a tool that has all the limitations Dilip mentions. So

[datameet] Re: GIS analysis

2017-03-23 Thread Dilip Damle
I would add that if anyone anywhere is even thinking of interpolating ground levels then it is the biggest Blunder that can be done. Unfortunately these days of software we have distanced ourselves from ground realities and fundamentals and even such ideas are offered as innovation/smartness

[datameet] Re: GIS analysis

2017-03-23 Thread Dilip Damle
HI, I do not know your project nor whom you are working for. However I have worked professionally as a consultant On Many Water Supply, a few Sewerage projects and to a lesser extent on Stormwater projects. I also had my own water supply network software (before commercial software were

Re: [datameet] GIS analysis

2017-03-23 Thread Devdatta Tengshe
Having some experience with Urban Hydrology, (as well as having worked on BISON for BWWSB) here is what I can tell you. 1) For most purposes, running a Simple trace on the Sewage Network by itself is usually more than enough. In most cases, the STP has more capacity than the capacity of the

[datameet] GIS analysis

2017-03-23 Thread Nagesh Aras
Hi I would like help from users or QGIS (or ArcGIS) in analyzing the sewage scenario in Bangalore. The rough idea is as follows: 1. We have the BWSSB STP locations and their capacity. 2. We have the rain precipitation figures 3. By analyzing the terrain (e.g. Digital Elevation Model from