0
A
B
C
D
E
F
G
ti
J
I00
200
0
100
200
0
v)
u
E
100 .c_
f a
-
01
v)
8
200
0
f 00
0
100
200
A
B
C
D
E
F
G
ti
J
Stations
Fio. $A. The seasonal variation of nitrate-nitrogen off the coast of New England.
Concentrations an, in pg-atoms/litre. Stations A-G lay along 8 straight section
stretching out, approximately perpendicularly to the coestline, across the continental shelf, and stations G-J were on a section parallel to the edge of the shelf.
All stations lay within the region bounded by 39"-41"N 7lo-72OW. The vertical
scale is expanded 400 times relative to that of the horizontal. (After Ketchum et al.,
1958).
A
B
C
D
E
F
G
ti
J
I00
200
0
100
200
0
v)
u
E
100 .c_
f a
-
01
v)
8
200
0
f 00
0
100
200
A
B
C
D
E
F
G
ti
J
Stations
Fio. $A. The seasonal variation of nitrate-nitrogen off the coast of New England.
Concentrations an, in pg-atoms/litre. Stations A-G lay along 8 straight section
stretching out, approximately perpendicularly to the coestline, across the continental shelf, and stations G-J were on a section parallel to the edge of the shelf.
All stations lay within the region bounded by 39"-41"N 7lo-72OW. The vertical
scale is expanded 400 times relative to that of the horizontal. (After Ketchum et al.,
1958).