201 
Williams, D.L. and M.L. Stauffer. 1978, Monitoring Gypsy 
Moth Defoliation by Applying Change Detection Techniques 
to Landsat Imagery: Proceedings of Symposium on Remote 
Sensing for Vegetation Damage Assessment, American Society 
of Photogrammetry, pp. 221-229. 
Williams, D.L., M.L. Stauffer, and K.C. Leung. 1979, A 
Forester's Look at the Application of Image Manipulation 
Techniques to Multitemporal Landsat Data: Proceedings of 
Fifith Annual Symposium on Machine Processing of Remotely 
Sensed Data, Purdue University, West Lafayette, Indiana. 
pp." 368-375. 
Table 1. Landsat Data Used for the Pennsylvania Mosaic 
Path/Row 
Scene Id. 
Date 
15/31 
30179-15020 
8/22/78 
15/32 
30098-15013 
6/11/78 
16/31 
21660-15005 
8/09/79 
16/32 
2544-15001 
7/19/76 
17/31 
30478-15123 
6/26/79 
17/32 
30208-15141 
9/29/78 
18/31 
2600-15094 
9/13/76 
18/32 
2600-15100 
9/13/76 
19/31 
21267-15031 
7/12/78 
19/32 
21267-15034 
7/12/78 
Table 2. Summary of Geodetic Accuracy Assessment Results 
for Quads 1-8. RL is the average line residual 
(north/south) and RS is the average sample 
residual (east/west). (NOTE: The "worst case" 
offsets in both line and sample directions are 
enclosed within parentheses.) 
Quad 
No. Points 
RL 
RS 
1 
7 
0.65(1.7) 
0.67(1.3) 
2 
6 
0.46(1.2) 
0.89(2.3) 
3 
12 
0.92(2.1) 
1.64(2.7) 
4 
21 
0.86(2.5) 
3.16(10.6) 
5 
33 
1.08(3.2) 
1.13(4.7) 
6 
40 
1.23(6.0) 
3.26(9.8) 
7 
26 
0.65(2.7) 
0.63(1.6) 
8 
23 
0.97(3.6) 
1.40(7.2)