Development of spatial health data infrastructure (SHDI) at Vadu Health and Demographic Surveillance Site (HDSS, Vadu) using open source technologies. Dr. Anand Akmanchi, Lecturer, Geoinformatics Mr. Vivek Gaikwad, Lecturer, Geoinformatics Mr. Somnath Sambhudas, Data Manager, Vadu Dr. Sanjay Juvekar, PH Scientist, Vadu Ghana Vadu, India University of Pune
What is spatial data infrastructure? Technology Technology Acquire Policies Policies P Process FRAMEWORK Distribute Distribute Standards Standards Maintain Maintain Human resources Spatial Data Ghana Vadu, India University of Pune
How do SDIs work • Data and metadata is Data and metadata is • Good coordination is Good coordination is managed centrally necessary between participating • But by data organisations i ti generator/owner • Definition of standards • Tools consume data is important is important via services on i i computer networks From Wikipedia, the free encyclopedia Ghana Vadu, India University of Pune
How do we get all the data into GIS? • Address Geocoding (conversion of address into Address Geocoding (conversion of address into coordinates) – Possible only in developed countries with well-defined address system • Collect coordinates using GPS C ll t di t i GPS • The primary location is the household • Other scale of mapping could be Other scale of mapping could be – Census tracts/blocks – Villages – Grid of user-defined size Ghana Vadu, India University of Pune
Vadu story,..the beginning House block sketching House block sketching GPS Readings GPS Readings Attribute data collection Attribute data collection Route Mapping Route Mapping Ghana Vadu, India University of Pune
Vadu story VADU village Households, roads, water points (drainage, canal, wells) HDSS site zoomed 1. Immunization database was linked 2. Problem of database updation Ghana Vadu, India University of Pune
Vadu story,..now • 22 villages have been mapped and GPS coordinates of households is under progress • GPS Location of all kinds of health facilities • Detailed road network • Used for identifying areas with low accessibility t to health facilities h lth f iliti Ghana Vadu, India University of Pune
Vadu SHDI,..now and the future Development of spatial health data infrastructure (SHDI) using open source ( ) g p technologies Why Open Source? Why Open Source? • Proprietary GIS softwares are expensive and source cannot be modified and distributed • There is a large collection of mature open source GIS technologies available Ghana Vadu, India University of Pune
Vadu SHDI,..now and the future • MySQL, which is a popular open source relational database management system with support for GIS data, is used to store GIS data in addition to HDSS data is used to store GIS data in addition to HDSS data. • It acts like a data storehouse and gives remote access to most current spatial and HDSS data. p • The SHDI houses census maps at village level containing approximately 200 demographic, amenities and land use parameters, detailed road maps, household locations t d t il d d h h ld l ti and associated HDSS data • Environmental variables like industries and their types Environmental variables like industries and their types, source of water, sanitary, medical, utility, waste disposal facilities that are not available in census are stored Ghana Vadu, India University of Pune
Vadu SHDI,..now and the future Birth Inmigration Households Households (household_id) Outmigration Death Individuals Individuals (household_id) (individual_id) Ghana Vadu, India University of Pune
Vadu SHDI,..now and the future • KosmoGIS, an open source GIS application developed by Sistemas Abiertos de Informacion Geografica (SAIG), Spain is used to view and analyze GIS and HDSS data Spain is used to view and analyze GIS and HDSS data stored in MySQL database. • We are now able to answer the question, WHERE? WHERE? in addition to how many! – Eg. How many children were born in 2008 and WHERE?! – How many children died in 2008 and WHERE?! Ghana Vadu, India University of Pune
Vadu SHDI,..now and the future • We can synthesize maps on demand • It is also able to retrieve maps from remote web mapping service (WMS) servers to include in current view include in current view • The architecture of SHDI permits to visualize GIS-HDSS data as soon as it is input into the database thus ensuring access to most database, thus ensuring access to most current data • MySQL database as well as KosmoGIS conform to OpenGIS standards thus allowing interoperability with other GIS and database applications in case need may arise. pp y Ghana Vadu, India University of Pune
Vadu story The SHDI would bring about dramatic The SHDI would bring about dramatic change in the management and visualisation of HDSS data from the field level for spatial analysis in particular. Live demonstration Ghana Vadu, India University of Pune
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