60 
LEGEND 
CHATHAM ISLANDS ANTARCTICA 
pO BOTTOM CONTOUR (FATHOMS) 
—:—2500—"— (FROM H.O. PUB NO 705) 
SHIP'S TRACK WITH MAGNETIC TOTAL INTENSITY 
PROFILE (REGIONAL GRADIENT REMOVED) 
TUNIC LIMIT OF ICE SHELF 
© 500 1000 GAMMAS 
Lis 
MAGNETIC TOTAL INTENSITY VERTICAL SCALE 
X F 
1200 y 
Pi2apR \-Ar= 1200 
% SUAN 
AZ 1200-10 JAN LOCAL TIME 
= rn 1200 od z S Zs pO3I0-I4 MAR 
Ses spec eh ey, WY ede 
4X, we ee 
Mi2z00-4aPr tee Cae 7 
mAcQUAME Is oe ea z 1200-14 MARo Si 
; 4 ia RA x (o 
p\2Z00-21JAN va aye E DA y 
wee & o* 7 5) ¥200-ISMAR Sj 1200-13 MAR 
271200. i © ——- Z a) S 
22 JAN ~° ue 3 ee ve kl 
1200, y > Le SS ae + 71200-16 MAR 
jo 22MAR , 2 x 
ip 
pA 
Y 
Ox 
1200-6APRO 
Z y + 60° 
Uh { \ oA ; 
ey Yj ie See A As 
% Lif Yy Z =a 
2 1200-3.0N mor E Lh Yh ea a cas Esser mse\ Pizoo-12 MAR | 
Ze aaa Deco) MAR, hy ; Ye 
4 7 
= a A = 
2500 — 1200-DECAP x ae at@ | Pp ee S > 3 
P rs iS \ a 
A xi Hy Z 
2000-—~~___ z, § iG £ Sy Le Dg1200-24 JAN y xs al 
=== 6 * 
RN v a if £\ 200-18 MAR / JI 
72000 ~ | <J i FZ 
Pact a == ~  \200-20maR™4 
Fic ANTARCTIC = / : \ 980° De | 
: # ae oF i200-11MAR 
Zee JAN C 1200-25 JAN “7 | 
é Z ea p< H 
a = = \ ANTARCTIC _ CIRCLE 1200719 MAR = = = = 
a al = i hg 2 | 
tA > 
ra y 
7 1345-19 MAR D 
~~ TX 
b 
noe een 
160° 150° 140° 130° 
FIGURE 30. MAGNETIC TOTAL INTENSITY PROFILES ALONG STATEN ISLAND TRACKS, NORTHERN SECTION a 
