Cruise
Log: Sunday, March 21, 2004
|
March
|
|
Sun
|
Mon
|
Tue
|
Wed
|
Thu
|
Fri
|
Sat
|
|
|
1
|
2
|
3
|
4
|
5
|
6
|
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
|
14
|
15
|
16
|
17
|
18
|
19
|
|
|
21
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
April
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
16
|
17
|
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
|
25
|
26
|
27
|
28
|
29
|
30
|
|
 |
View
of the tanks under preparation from the aft of the
ship. (Photo by Brian Ward) |
|
|
 |
| Filling
one of the tanks with iron sulfate using a hopper. (Photo by Brian
Ward) |
Contributors:
Murray Smith, NIWA and Brian Ward, WHOI
Today we began the big task of preparing the iron fertilizer solution in
two large tanks. The first half of the tanks are filled with seawater, then
acid, and iron sulfate. More than one ton of iron sulphate is being sieved
and loaded into the tanks from a hopper, then the tanks are topped off with
seawater. Large pumps mix the solution around to dissolve the iron sulfate.
At the same
time, a start was made on preparing the tracer tanks. Obviously
a complex voyage like this requires a lot of coordination. Today we had
the first on board general cruise meeting addressed by voyage
 |
| The
CTD and water sampling bottles emerging from an 800m descent. (Photo
by Craig Stevens) |
| |
leader Mike Harvey.
We also began the oceanographic
survey today in the afternoon. This will determine the best site to carry
out the experiment. The survey will comprise a southward-heading track on
173°E, with a CTD cast to 800m every 15 nautical miles interleaved with
XBTs. Work was
briefly interrupted when a pod of whales was spotted several hundred meters
away. All through the day we are accompanied by the majestic albatross that
swoop low over the waves.
Next Day >> |
Introduction 
