FINAL REPORT
FINAL REPORT
FINAL REPORT
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In general the mean annual temperature has risen by around 3.5° C between 1983 and 2005.<br />
This has to be considered as a tremendous increase. It has to be calculated that the<br />
evapotranspiration has risen as well. Slightly increasing temperatures of winter and summer<br />
months lead to this effect. At the moment an evapotranspiration of only around 56 mm based<br />
on the values of the whole drainage basin of Buyant Gol can be calculated. The first reason<br />
for this relativly small amount is the large area of the high mountain region of the drainage<br />
basin and secondly the fact that one has to calculate an uncertain amount of melted glacier<br />
water in the Buyant Gol (see Fig. 16-20).<br />
mm<br />
100<br />
80<br />
60<br />
40<br />
20<br />
0<br />
-20<br />
-40<br />
-60<br />
-80<br />
1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 199<br />
7<br />
years<br />
1998 1999 2000 2001 2002 2003 2004 2005<br />
Wet and Dry Years<br />
Source:Institute for a climate and water studies of Khovd aimag, July 2006<br />
Figure 16: Wet and Dry years between 1983 and 2005 (dry periodbetween 1996 and 2002 / accord. to<br />
Meteorological Survey Station Khovd)<br />
mm<br />
60<br />
50<br />
Different Stations<br />
I 1998 II III<br />
40<br />
30<br />
20<br />
10<br />
1989<br />
2003<br />
0<br />
1979198019811982198319841985198619871988198919901991199219931994199519961997199819992000 200120022003<br />
years<br />
Q max Q min Q average Linear (Q max) Linear (Q average) Linear (Q min)<br />
Source:Institute for a climate and water studies of Khovd aimag, July 2006<br />
Figure 17: Buyant River Discharge Amount between 1967 and 2003 as Indicator for Climate Change in<br />
the Drainage Basin of Buyant Gol /accord. to Meteorological Survey Station Khovd)<br />
36