3.3.2. Secondary Data
The secondary data included rainfall and river discharge data;
topographical sheet. "Table 3 ".
Table 3: Description of
secondary data use
|
Data
|
Sources
|
Zone
|
Data period
|
|
Documents, articles, reports; theses
|
Library; Different offices (e.g: MERF); Online sites
|
Mono basin; Yoto district
|
Not determined
|
|
Monthly and annual rainfall data
|
Meteorological service of Togo (DNM)
|
Tabligbo
|
1971-2010
|
|
Monthly and annual Mono Discharge data
|
Hydrological service of Lomé
|
Athieme
|
1971-2010
|
|
Topographical Sheets
|
Cartography service of Lomé
|
The Yoto district
|
IGN 1984
|
3.3.3. Data Analysis
Articles, theses, reports etc... processing consisted in the
reading of documents in order to come up with a consistent literature review.
After this first step, the trend detection analysis in the annual and seasonal
datasets was accomplished to assess climate change over the study area. In
addition, the analysis of vulnerability's determinants under exposure,
susceptibility and resilience and computation of flood vulnerability index were
carried out. Moreover, an accurate flood vulnerability maps were created using
ArcGIS techniques.
| 
