LPPR1 CTD update

Some good news: Jules and Hector have removed the plastic capillary tubes from the CTDs at La Parguera. It's too soon to draw any definite conclusions but it looks like the depth numbers are once again behaving properly. See for example at:

ftp://ftp.aoml.noaa.gov/pub/ocd/jankulak/lppr1-2006.xls

Shoe reports that the capillary tubes (which he is sending back to Falmouth) are clogged with growth. Falmouth is either going to send us some wider tubes, or perhaps tell us to deploy the instruments without the tubes from now on, I'm not sure which.

This doesn't explain 100% of the problems we've had but it's a promising sign.

regards,
Mike J+

Near-Bottom

At left is a picture of the near-bottom part of "the stick" during cleaning, week of April 10, 2006. Note positioning of deep CTD and BIC light sensor. Photo by Jules Craynock.

Shallow BIC Light Sensor

Above is a picture of the shallow (i.e., near-surface) Biospherical Light Sensor during cleaning, week of April 10, 2006. Photo by Jules Craynock.

Deep BIC Light Sensor

At left is a picture of the deep (i.e., near-bottom) Biospherical Light Sensor during cleaning, week of April 10, 2006. Photo by Jules Craynock.

Grounding Plate

At left is a picture of the grounding plate during cleaning, week of April 10, 2006. Photo by Jules Craynock.

Shallow CTD

At left is a picture of the shallow (i.e., near-surface, ~1m) CTD during cleaning, week of April 10, 2006. Photo by Jules Craynock.

Deep CTD

At left is a picture of the deep (i.e., near-bottom) CTD during cleaning, week of April 10, 2006. Photo by Jules Craynock.

LPPR1 ICON/CREWS Field Log: Puerto Rico CREWS Site

LPPR1 ICON/CREWS Field Log: Puerto Rico CREWS Site
J. Craynock & H. Casanova - 2 dives April 11,2006
- Adjusted tension on leg 3, reduced lean.
- Some concrete erosion noted on NW side of base, additional
concrete added and NE and SE sides cconcrete completed.
-Noticeable barnacle and hardshell growth on underside of all
spectra legs observed, some removed but should be cleaned
so that braid can be visible. Lashings need cleaning also.
Much thanks to Winston Rovira for his help driving the boat
and preparing concrete!

April 12, 2006
- Reduced tension on leg 2, pylon now straight.
Lashings retied. 2 SE side base lashings snug, might
have to be loosened next visit.

April 15, 2006
- H. Casanova removed both capillary tubes from the
CT's. Sent to manufacturer on Monday, April 17.
H. was snorkeling.