botswana/namibia - Cour international de Justice
botswana/namibia - Cour international de Justice
botswana/namibia - Cour international de Justice
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(Goudie. ed.; The Encyclopaedic Dictionary of Physical Geography, (1990) p.428; Leopold,<br />
Wolman and Miller, Fluvial Processes in Geomorphology, (1964), p.281, in Appendices 2 and<br />
7 in Professor Sefe's Second Opinion, (Appendix 2 of the present Counter-Memorial).<br />
338. In a bifurcated stretch of river, such as the Chobe River in the vicinity of Kasikili/Sedudu<br />
Island, both channels will have their respective thalwege. However, the thalweg of the main<br />
channel will be at a lower elevation than the thalweg of the other channel. Only the thalweg of<br />
the main channel can be logically connected to the thalweg of the channel upstream of the<br />
point of bifurcation and downstream of the point of reunion. (Professor Sefe's Second<br />
Opinion, page 9, para.22; Professor Sefe's Analysis of the Expert Report of Professor<br />
Alexan<strong>de</strong>r, page 4, para. 9, Appendix 4 of the present Counter-Memorial).<br />
339. The 1985 Joint Survey Report (see paragraphs 345 and 348 below), established the<br />
following <strong>de</strong>pths at the points of bifurcation:-<br />
Location of<br />
Sounding<br />
Cross-section Depth in metres<br />
Upstream of<br />
bifurcation<br />
Immediately below bifurcation<br />
1 4.05<br />
Northern channel 2 2.65<br />
" " " 2A 5.60<br />
Southern channel 20A 2.10<br />
" " "<br />
Immediately above reunion with river<br />
20 1.50<br />
Northern channel 7A 6.00<br />
" " " 8 8.20<br />
Southern channel 11 4.70<br />
" " " 10 6.30<br />
Downstream in river below reunion 9 14.00<br />
Figure 9 in Professor Sefe's Second Opinion (at page 129) illustrates the comparative<br />
thalwegs of the two channels and how the continuous thalweg of the river runs from upstream<br />
into the <strong>de</strong>eper northern channel and continues at the <strong>de</strong>eper level until it rejoins the river<br />
below the Island.<br />
340. Accordingly, the thalweg of the Chobe River, which is the line along which Article III<br />
provi<strong>de</strong>s the boundary shall run, is located in the northern channel.<br />
341. This interpretation of Article III is confirmed as the official German view of the location<br />
of the boundary. A letter drafted in the German Foreign Office, dated (Berlin) 25 April 1910,<br />
contains the following message:-