Transcript Document

WPS Application
Development of geospatial web application for site selection
for artificial recharge of groundwater
Principal Investigator: Ritesh Vijay
Co-Investigators: Asheesh Sharma
CSIR-National Environmental Engineering Research Institute
Nehru Marg, Nagpur 440 020
October 10, 2013
Objective of the study
• To develop a geospatial web application for site selection
for artificial recharge of groundwater.
• To demonstrate the application considering local climatic,
topographic, hydrogeologic and land use conditions.
Minutes of the meeting (17 July 2013) and progress
Comments and suggestion
Progress
Web processing services are now available for real time Completed
data updation, assigning weight to data sets etc.
Tool should be upgraded towards providing high level
user - oriented services for suggesting alternative
scenarios for the above applications.
Under development
The project is making use of freely available and open
source software tools for WPS. Additional features have
been added to the available tools to support site
selection and structure suggestion
Using available and open
source s/w and tools (QGIS,
Geoserver, PostGIS,
Geoexplorer, Apache, Apache
Jmeter etc.
The tools and services should be shared with GISE Lab
IIT Bombay for further evaluation and suggestion /
comments.
Completed and received
suggestions for the project
Performance and evaluation of technologies
Used three server technologies
for performance
Further development
Under progress
Modified approach
PostgreSQL +PostGIS
Soil, Geology,
Geomorphology,
Land use,
Contour/DEM,
Water table etc.
Geoserver (open source Java libraries)
Feature Data
GML
WFS
WMS
(Features)
(maps)
KML
WPS
(Processing)
GML
WFS – web feature service
WCS – web coverage service
Feature viewer
WPS – web processing service
or editor
WMS – web map service
GML – geography markup language
KML – keyhole markup language
Client
Web browser
GML
Analytical
tool (GIS-AR)
Map
viewer
Java/Servlet
Apache Tomcat
KML
viewer
Previous developments
WMS and WFS
services
WPS
services
WPS
services
WPS
services
Confirm editing
service by opening in
Open source s/w
Recent developments
The tools and services shared with GISE Lab IIT Bombay for further
evaluation and suggestion/comments.
Server 1
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Server 2
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Server 3
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Performance analysis
Server 1
Apache Jmeter
Server 2
Server 3
Geoexplorer
Simulated traffic for web service performance analysis
Server 1
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Server 1
Server 2
Server 2
Server 2
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Server 3
Server 3
Server 3
Project requirements and challenges overview
Initial inputs (shape files)
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Depth of ground water (D)
Ground Water Recharge (R)
Area (A)
Soil parameters (S)
Topography (T)
Impact of vadose zone (I)
Hydrologic conductivity (C)
Process 1
WMS/WFS
Conversion of
DRASTIC
inputs into OGC complied
services
Process 2
Extracting services layer feature
and augmenting it with defined
weights
Output 1
Weighted
DRASTIC
services
Established OGC standards
Output 2
Challenges
Overlayed
DRASTIC
service
Output
Process 6
Process 5
Classification of raster based
on cumulated weights
WMS/WFS
WPS
new algorithm
Process 3
WPS
Multiple overlays
analysis
Process 4
Output 3
Output 4
Services for
suitable zones
recharge recharges
WFS/WPS
new algorithm
Overlayed
DRASTIC
service
conversion to
raster
WPS
new algorithm
Outcome
Implementation of WMS, WFS and WPS in the web based application
Demonstrate various WPS algorithms
(intersection, overlay, feature extraction etc)
Demonstrate real time editing of layer features in PostGIS
Performance analysis of web application with and without geoserver
Future work
Feature editing through WPS
WPS process chaining
Implementation of site selection for artificial recharge algorithm
Thanks