You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
10 cc of HgCl2 was added to each carboy at the time of collection.
Measurements made four years previous.
Tide in Woods Hole running west.
Tide off West Chop running west.
Tide off Gay Head had run west for one hour.
Tide off Gay Head running east.
Table II
Comparison of absorption per meter of samples 5 and 6 at five wave-lengths. Both samples were taken at Station C. Neither was filtered at the time of collection, but sample 6 had evidently become contaminated.
Water Freshly Shaken
Water Berkefeld Filtered
Wave-Length
Sample 5
Sample 6
Sample 5
Sample 6
5790A
14.0%
48.8%
7.2%
8.4%
5460
13.6
47.3
4.3
6.2
4359
15.1
61.9
1.0
10.0
4047
17.8
69.1
2.8
16.7
3650
22.5
72.5
5.4
27.8
Table III
Summary of the measurements of the penetration of the “green” component of daylight into the sea and comparison with laboratory measurements of absorption of unfiltered samples taken from the same stations.
Station
Location
Series Number
Range of Measurements
Av. Extinction Coefficient, k, over Range in Previous Col.
Average Absorption per Meter for Sea Measurement
Sample Number
Absorption per Meter at 5500A for Sample in Laboratory
Minimum Absorption per Meter for Lab. Sample
Wave-Length at Which Minimum Absorp. is Found
Meters
k
%
%
%
A
C
Sargasso Sea
473
2–94
0.056
2–25
.040
3.9
5
13
10
4900
B
Continental Slope
476
4–74
.062
4–23
.061
5.7
7
10
7
4900
A
Continental Shelf
478
2–44
.13
2–25
.12
11.3
9
26
22
4900
3
V. S. Whistle Buoy
480
1–31
.14
1–25
.125
11.7
11
48
45
5790 and 5685
4
43
42
5250
4
Vineyard Sound
322
1–21
.20
18.1
2
69
67
5685
5
Buzzards Bay
325
1–15
.25
22.1
1
57
57
5685
Table IV
Comparison of “pure” sea water with distilled water. Percent absorption per meter.
Reported by Clarke (1933).
Reported by Oster and Clarke (1935).
Table VI
Percentage transmitted by filter-passing material = C (“color”), and by filter-retained material = S (“suspensoids”), in reducing the transmission of distilled water = W to that observed for the shaken sample = N (see text).
Fi = transmission of filtered sample. All measurements made in ceresin-lined tube.
Departure from 100 percent probably due to variation of measurement as indicated by other series of observations.
10 cc of HgCl2 was added to each carboy at the time of collection.
Measurements made four years previous.
Tide in Woods Hole running west.
Tide off West Chop running west.
Tide off Gay Head had run west for one hour.
Tide off Gay Head running east.
Table II
Comparison of absorption per meter of samples 5 and 6 at five wave-lengths. Both samples were taken at Station C. Neither was filtered at the time of collection, but sample 6 had evidently become contaminated.
Water Freshly Shaken
Water Berkefeld Filtered
Wave-Length
Sample 5
Sample 6
Sample 5
Sample 6
5790A
14.0%
48.8%
7.2%
8.4%
5460
13.6
47.3
4.3
6.2
4359
15.1
61.9
1.0
10.0
4047
17.8
69.1
2.8
16.7
3650
22.5
72.5
5.4
27.8
Table III
Summary of the measurements of the penetration of the “green” component of daylight into the sea and comparison with laboratory measurements of absorption of unfiltered samples taken from the same stations.
Station
Location
Series Number
Range of Measurements
Av. Extinction Coefficient, k, over Range in Previous Col.
Average Absorption per Meter for Sea Measurement
Sample Number
Absorption per Meter at 5500A for Sample in Laboratory
Minimum Absorption per Meter for Lab. Sample
Wave-Length at Which Minimum Absorp. is Found
Meters
k
%
%
%
A
C
Sargasso Sea
473
2–94
0.056
2–25
.040
3.9
5
13
10
4900
B
Continental Slope
476
4–74
.062
4–23
.061
5.7
7
10
7
4900
A
Continental Shelf
478
2–44
.13
2–25
.12
11.3
9
26
22
4900
3
V. S. Whistle Buoy
480
1–31
.14
1–25
.125
11.7
11
48
45
5790 and 5685
4
43
42
5250
4
Vineyard Sound
322
1–21
.20
18.1
2
69
67
5685
5
Buzzards Bay
325
1–15
.25
22.1
1
57
57
5685
Table IV
Comparison of “pure” sea water with distilled water. Percent absorption per meter.
Reported by Clarke (1933).
Reported by Oster and Clarke (1935).
Table VI
Percentage transmitted by filter-passing material = C (“color”), and by filter-retained material = S (“suspensoids”), in reducing the transmission of distilled water = W to that observed for the shaken sample = N (see text).
Fi = transmission of filtered sample. All measurements made in ceresin-lined tube.
Departure from 100 percent probably due to variation of measurement as indicated by other series of observations.