Presented by Catherine Pfeifer ILRI/IWMI and Yenenesh Abebe IWMI at the Learning Event on ‘A Decision Support Tool for Mapping Suitability of REM-Strategies in the Nile Basin’, Addis Ababa, Ethiopia, 6-7 December 2012
Introduction to geographic information systems and the Nile Goblet tool
1. Catherine Pfeifer ILRI/IWMI and Yenenesh Abebe
IWMI
Learning Event on ‘A Decision Support Tool for Mapping Suitability of
REM-Strategies in the Nile Basin’
Addis Ababa, Ethiopia, 6-7 December 2012
2. Plan
Crash introduction into what is GIS
Importance of GIS in agriculture
The concept of suitability
The Nile-Goblet open source tool
Test yourself the Nile Goblet tool
3. What is GIS
Geographic, so we know that GIS has something to do
with geography.
Information, so we know that GIS has something to do
with information, namely geographic information.
System, so we know that GIS is an integrated system of
geography and information tied together.
4. What is GIS?
Computer system
Hardware
Computer, plotter, printer,
digitizer
• Software and
appropriate procedures
Spatially referenced or
geographic data
People to carry out various
management and analysis
tasks
5. What is GIS ?
Geographic layer =
geographic data
Vector data
Point
Lines
polygons
Raster data
grid
6. GIS for agriculture
Technology/practices/crops depend on the bio
physical environment
Best practices are location specific
GIS can inform what works where
Suitability analysis
7. Suitability analysis
Select a location
where given conditions for a best practice are met
Example : terraces
Slope : 12-50%
Rainfall 800-2000 mm annual rainfall
Not on vertisol
8. Nile Goblet tool
Open source GIS software for suitability analysis
No need for prior GIS knowledge
Dataset has been prepared for RMS in the Ethiopian
Blue Nile
Flexible tool, can be adjusted for different location and
different practices technologies.
http://nilebdc.wikispaces.com/Nile+Goblet+tool+and
+training