comparative analysis of factors affecting the management playing field for international lake basins...
TRANSCRIPT
Comparative analysis of factors affecting the management playing
field forinternational lake basins in the Horn of
Africa
Dr. Thomas J. BallatoreLake Basin Action Network (LBAN), Shiga, Japan
Prof. Eric O. OdadaUniversity of Nairobi, Nairobi,
Kenya
The IGAD RegionHow many of these lakes
are international?
Step 1. Find the lakes that are intersected by
shared IGAD borders
Boundaries from GADM, GMI, World Bank
The IGAD RegionHow many of the lakes
are international?
Step 2. Find the lakes whose drainage basins
are intersected by shared IGAD borders
The IGAD RegionEleven (11) International
drainage basins containing lakes
Basins delineated from SRTM3 (NASA)
The IGAD RegionThe eleven (11)
international drainage basins containing lakes
Total Area = 1.1x106 km2
(21.5% of total IGAD area)
Factors affecting the Lake Basin Management
“Playing Field”
• Lake Area
• Drainage Basin
Area
• Drainage Type
Physical• Population Density
• Spatial Distribution of
Population
• Number of Countries
• Number of Linguistic Groups
Human
• Spatial Distribution of Temp. and Precip.
• Projected Climate Changes in Temp. and
Precip.
Climate
Khashm al Qirbah
KarumAl Abyad
AssalAbheTurkanaRoseires
Victoria Kyoga Chew Bahir Fanwaamo
LakeArea
7 km2 72 km2 100 km2
224 km2 7,441 km2 311 km2 64 km2
0~86 km20~341 km22,776 km266,866 km2
Khashm al Qirbah
KarumAl Abyad
AssalAbheTurkanaRoseires
Victoria Kyoga Chew Bahir Fanwaamo
LakeArea
7 km2 72 km2 100 km2
224 km2 7,441 km2 311 km2 64 km2
0~86 km20~341 km22,776 km266,866 km2
Khashm al Qirbah
KarumAl Abyad
AssalAbheTurkanaRoseires
Victoria Kyoga Chew Bahir Fanwaamo
BasinArea
438 km2 100,351 km2 18,863 km2
188,472 km2 148,449 km2 94,030 km2 2,861 km2
229,558 km218,556 km2321,533 km2263,568 km2
Khashm al Qirbah
KarumAl Abyad
AssalAbheTurkanaRoseires
Victoria Kyoga Chew Bahir Fanwaamo
BasinArea
438 km2 100,351 km2 18,863 km2
188,472 km2 148,449 km2 94,030 km2 2,861 km2
229,558 km218,556 km2321,533 km2263,568 km2
Khashm al Qirbah
KarumAl Abyad
AssalAbheTurkanaRoseires
Victoria Kyoga Chew Bahir Fanwaamo
Drainage Type:Exorheic (Open) orEndorheic (Closed)
exorheic exorheic endorheic
exorheic endorheic endorheic endorheic (ocean input)
exorheicendorheicexorheicexorheic
Khashm al Qirbah
KarumAl Abyad
AssalAbheTurkanaRoseires
Victoria Kyoga Chew Bahir Fanwaamo
Drainage Type:Exorheic (Open) orEndorheic (Closed)
exorheic exorheic endorheic
exorheic endorheic endorheic endorheic (ocean input)
exorheicendorheicexorheicexorheic
Lake Karum Basinde Martonne Aridity Index
de Martonne Aridity Index calculated from 30 arc second Annual Average Temperature
and Annual Average Precipitation
from WorldClim.Index = P / (T +10)
Khashm al Qirbah
KarumAl Abyad
AssalAbheTurkanaRoseires
Victoria Kyoga Chew Bahir Fanwaamo
Aridity:Distribution
Ave. Aridity = 20 Ave. Aridity = 24 Ave. Aridity = 11
Ave. Aridity = 45 Ave. Aridity = 28 Ave. Aridity = 20 Ave. Aridity = 4
Ave. Aridity = 12 Ave. Aridity = 21 Ave. Aridity = 39 Ave. Aridity = 39
de Martonne Aridity Index
Khashm al Qirbah
KarumAl Abyad
AssalAbheTurkanaRoseires
Victoria Kyoga Chew Bahir Fanwaamo
Aridity:Distribution
Ave. Aridity = 20 Ave. Aridity = 24 Ave. Aridity = 11
Ave. Aridity = 45 Ave. Aridity = 28 Ave. Aridity = 20 Ave. Aridity = 4
Ave. Aridity = 12 Ave. Aridity = 21 Ave. Aridity = 39 Ave. Aridity = 39
de Martonne Aridity Index
Khashm al Qirbah
KarumAl Abyad
AssalAbheTurkanaRoseires
Victoria Kyoga Chew Bahir Fanwaamo
Projected Change in Aridity(2000-2050)(HadGEM2-ES for RCP45 from CMIP5)
-2% -3% -6%
-6% -9% -7% +6%
-16%-11%-10%-9%
Khashm al Qirbah
KarumAl Abyad
AssalAbheTurkanaRoseires
Victoria Kyoga Chew Bahir Fanwaamo
Projected Change in Aridity(2000-2050)(HadGEM2-ES for RCP45 from CMIP5)
-2% -3% -6%
-6% -9% -7% +6%
-16%-11%-10%-9%
Khashm al Qirbah
KarumAl Abyad
AssalAbheTurkanaRoseires
Victoria Kyoga Chew Bahir Fanwaamo
Population:Density
11 persons/km2 77 persons/km2 31 persons/km2
115 persons/km2 75 persons/km2 126 persons/km2 3 persons/km2
13 persons/km251 persons/km2169 persons/km2167 persons/km2
Persons/km2
Khashm al Qirbah
KarumAl Abyad
AssalAbheTurkanaRoseires
Victoria Kyoga Chew Bahir Fanwaamo
Population:Density
11 persons/km2 77 persons/km2 31 persons/km2
115 persons/km2 75 persons/km2 126 persons/km2 3 persons/km2
13 persons/km251 persons/km2169 persons/km2167 persons/km2
Persons/km2
Khashm al Qirbah
KarumAl Abyad
AssalAbheTurkanaRoseires
Victoria Kyoga Chew Bahir Fanwaamo
Population:Distribution
11 persons/km2 77 persons/km2 31 persons/km2
115 persons/km2 75 persons/km2 126 persons/km2 3 persons/km2
13 persons/km251 persons/km2169 persons/km2167 persons/km2
Persons/km2
Khashm al Qirbah
KarumAl Abyad
AssalAbheTurkanaRoseires
Victoria Kyoga Chew Bahir Fanwaamo
Countries:Number and Distribution
2countries 3 countries 2 countries
2 countries 4 countries 3 countries 2 countries
3 countries2 countries5 countries5 countries
Khashm al Qirbah
KarumAl Abyad
AssalAbheTurkanaRoseires
Victoria Kyoga Chew Bahir Fanwaamo
Countries:Number and Distribution
2countries 3 countries 2 countries
2 countries 4 countries 3 countries 2 countries
3 countries2 countries5 countries5 countries
Khashm al Qirbah
KarumAl Abyad
AssalAbheTurkanaRoseires
Victoria Kyoga Chew Bahir Fanwaamo
Languages:Number and Distribution(from Ethnologue (GMI))
2 languages 8 languages 3 languages
15 languages 51 languages 8 languages 2 languages
16 languages17 languages62 languages49 languages
Khashm al Qirbah
KarumAl Abyad
AssalAbheTurkanaRoseires
Victoria Kyoga Chew Bahir Fanwaamo
Languages:Number and Distribution(from Ethnologue (GMI))
2 languages 8 languages 3 languages
15 languages 51 languages 8 languages 2 languages
16 languages17 languages62 languages49 languages
Thank you for your kind attention!
Please send questions and/or comments to:
Dr. Ballatore at [email protected]
Prof. Odada at [email protected]