Ill 
resolution, 
ering twelve 
jects (small 
sctors G and 
1. Accuracy 
Tables 2-5). 
id deciduous 
(number of 
to enable 
assification 
Lcantly as a 
uracy of 67 
ly, this was 
pecially the 
tion at that 
rest in this 
all accuracy 
3 multidate 
np roving the 
Kpect a more 
3 classifier 
ther than on 
ts operation 
Id be easier 
le multidate 
combination 
rovement can 
e the ERTS 
: mapping of 
v of greatly 
anned to be 
lat thematic 
Ding natural 
Lees Company 
frumental in 
lis study"is 
FIGURE 2. Alphabetically' coded thematic plan from the Sept, 
digital tape. 
DDDDDDDDDDDO Dl ClIWUWl A AID D D D DU A AAA A^_ 
0 D D D D DJTId D D D D d Ia A A A A Ay) D D P DI A A® A A A 
D D 0 D DfA A ID D P D D D D ~p1a A A A A lp DlCl A A A A A A A 
D D D D D D iA AÀl D D D ÍaTcI D lA A A A A A A A A, A A A 
DDDDDDDDDDDDDO DP DlClAI HM MMMMM MlA A A 
DDDDDDDDDDDDDD P fCC CIA A AAA AIMl' * 
DDDDDDDDDDDDDD 0 DOk C . 
D D 0 D D D D D 0 ú 0 0 0 D D D PF 
DDDDDDDDDDDD D P D D P P D|/ 
DDDDDDODDD0D DÍA A AID [Ä~aT( 
POPP O D D D D D D D DJA AffMj A(_D_D [ 
ICCCCCCCCCI 
CCCCCCCCCi 
0*0 D D 0 0 D D D'ole C cfp* 0DDDDD00DD00 pfÄt wwwfC CCCCCCCCCi 
A A A A A Ä~Äl D D dIaIDIAI D DDDDDDDDD D[T 
D D D D D D D DI A A A A ID D D DDDDDDDDI 
Al C CIA A A AAA A A A ~A A Id D D D D D D 0 DfAlDl. 
FIGURE S. Alphabetically coded thematic plan from the June 3 
digital tape. 
Legend for Fig. 2 § 3: A - agricultural land, C - 
forest, D - deciduous forest, M - bare soil (mud), 
5, 1972 ERTS 
, 1973 ERTS 
coniferous 
W - water.