J. 

S 

m 
•a 
9 
S 
5 
s 
Com- 
puted 
evapo- 
ration 
OMNOOCO!Ort'*(»«'<)it»OMNMaie<)<DHNNi«05'*OOOiflPl <N lij ^ in a> « -H 
OO^^NNMBniiti^iOiOlOOfflSNOOCOfflOOOHrtNP] ■>* ^ * 10 U3 ffl N 
el 
MSOiaiOOMIS»'0'*NH10iaiNNOiOiCHONS'*WiONO>0'H O MNOOOOO* 
+ + + + + + + + + + 1 1 1 + + + + + + + + + + + + + + + + + + 1 + 1 1 + 
Computed 
evapo- 
ration 
lONiOCOiOMiOnTf^NMCCM^OiOiOraiOCiOm^iOOOONh. O WNOOIl^ia) 
sl s 
NNOOHioeMrtH10Ha)HMio««3OO00ONHNN(lHH r< COiOOOOMIN 
CON IN COi-cCO CqHHtOHCOM cN <-i CO f" rtH « Mr-l^ .-1 
++ 1 1 + 1 1 1 1 + 1 + 1 +++ 1 + 1 ++ 1 +++++ 1 + 1 + 1 ++ 
Total 
correc- 
tion 
NMOOHW'(iraHrtl001il)Hni0M0OO«Ot0HNNNHH»(.M0ONNN 
++ i77 m m 1 1+1 1 iTT + 11+++++1111 +++ 
1 
a 
o 
'■& 
a 
0) 
H 
u 
O 
U 
Run-off 
from 
land 
CO©OCO<OOtOtOOCOOtO<DtOCOOtOO(OCD(DO{OtDtDtDcDOtOCOOtOCOCO<0(OCO 
1 1 I I I 1 1 1 1 I I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I 
•a 
8 
8 
Rainfall 
on 
lake 
OO«MMNtD«)nM00rtt>Hi0NO(»«NON«3»OOOHH(D0)OhNOOO 
1 1 1 77 1 7777 1 1 1 1 1 77 1 i i i i i i i m i 
1 
M 
H 
Outflow 
to 
Erie 
(+10 
NNNNNNNNNNNNNNNnMNNNNNNNMNNNNNNNNNNNn 
Inflow 
from 
Superior 
TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT 
Rise of 
mean lake 
surface 
0000000000000000000000000000000000000 
CO <N NHOHNNHH MrtN^WNHHNNMH rtH^OHNHN -h 
++ 1 ++ 1 1 +++ + 1 +++ 1 + 1 ++ 1 + +++ 1 + 1 + 1 + 
•v 
S 
E 
V 
m 
o 
elevation 
corrected for 
wind and 
barometric 
effects 
579.+ 
^00503t^OOM(NO<NCO-<}<->*<»iOt^rH'>j<ClCOCN|Tl<OCO-<»<TllTl<iOiOO>-iCN10-HC10>0 
/viioioooxooooaaoioicioioictoiaoooooooooooooHoooooioio 
Observed 
elevation 
of lake 
surface 
579.+ 
OOOOOOlNNHNiOCDNCDOJMOOONfOMM^CD^MiOiO^HHCOUJOWlNHO 
^-v '"JO Ci CO C5 CO 00 Cl C5 O Ci Oi Oi ~-> Cj O O O O O O © O O O O O © 
2 
Q 
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& 1 "3 
60 
