Development of spatial health data infrastructure (SHDI) at Vadu Health and Demographic Surveillance Site (HDSS, Vadu) using open source technologies.

Transcription

1 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

2 What is spatial data infrastructure? Technology Acquire Policies Standards FRAMEWORK Process Distribute Human resources Maintain Spatial Data

3 How do SDIs work Data and metadata is managed centrally But by data generator/owner Tools consume data via services on computer networks Good coordination is necessary between participating organisations Definition of standards is important From Wikipedia, the free encyclopedia

4 How do we get all the data into GIS? Address Geocoding (conversion of address into coordinates) Possible only in developed countries with well-defined address system Collect coordinates using GPS The primary location is the household Other scale of mapping could be Census tracts/blocks Villages Grid of user-defined size

5 Vadu story,..the beginning GPS Readings House block sketching Route Mapping Attribute data collection

6 Vadu story VADU village Households, roads, water points (drainage, canal, wells) HDSS site zoomed 1. Immunization database was linked 2. Problem of database updation

7 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 to health facilities

8 Vadu SHDI,..now and the future Development of spatial health data infrastructure (SHDI) using open source technologies 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

9 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. It acts like a data storehouse and gives remote access to most current spatial and HDSS data. The SHDI houses census maps at village level containing approximately 200 demographic, amenities and land use parameters, detailed d road maps, household h locations and associated HDSS data Environmental variables like industries and their types, source of water, sanitary, medical, utility, waste disposal facilities that are not available in census are stored

10 Vadu SHDI,..now and the future Inmigration Birth Households (household_id) Outmigration Death Individuals (household_id) (individual_id)

11 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 stored in MySQL database. We are now able to answer the question, WHERE? in addition to how many! Eg. How many children were born in 2008 and WHERE?! How many children died in 2008 and WHERE?!

12 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 The architecture of SHDI permits to visualize GIS-HDSS data as soon as it is input into the 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.

13 Vadu story 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