This CD contains the final version of the Scanfish
and of the shipboard ADCP data data in matlab (.mat) format.
in the subdirectory "data".


Scanfish:

The files "sw06all.mat" contains the following variables:


theta   1720x70   963200   double array   potential temperature  
sal   1720x70   963200   double array   salinity  
sigma   1720x70   963200   double array   potential density  
O2   1720x70   963200   double array   oxygen [ml/l]  
O2Volt   1720x70   963200   double array   oxygen sensor voltage  
FluorVolt   1720x70   963200   double array   WetLabs fluorometer voltage  
xmiss_c   1720x70   963200   double array   light beam attenutation "beam_c" [1/m]  
XmissVolt   1720x70   963200   double array   WetLabs transmissometer voltage  
pres   1720x70   963200   double array   pressure  
z   1x70   560   double array   depth coordinate  
txyz   1720x4   55040   double array   time, longitude, latitude, depth  


There are 1720 profiles with 70 vertical bins each. "theta" refers to
potential temperature, "sal" to salinity, "sigma" to potential density,
"o2" to oxygen, and "xmiss_c" to light transmission (transmissometer
measurements in "beam_c", with units of 1/m. In addition, the perhaps
more familiar sensor output voltages for oxygen (O2Volt) and light
transmission (XmissVolt) are retained as well. Fluorometer output is
provided here in Volts only (FluorVolt). "txyz" stands for
time, longitude, latitude, bottom depth, with time in decimal days (noon on
January 1 corresponds to day 0.5; noon on August 24 corresponds
to day 235.5). The profiles were derived by averaging
all data from one complete dive cycle, defined as the time between
successive bottom turning points, into 2-meter vertical bins. The variable
"z" gives the nominal center depth of these bins, while the variable "pres"
contains the actual average pressure of all data within these vertical bins.


The same directory also contains two matlab programs: example_section.m
and set_section_id.m. The former gives an example of how the profile
data can be used to quickly generate section plots. The latter contains
the start- and end times of the SW06 sections that are used by
example_section.m to identify the profiles that comprise a particular section.

The file scanfish_proc_notes.txt. gives a description of the Scanfish data processing.
Though detailed, it is written mainly for someone familiar with
Scanfish or SeaSoar processing. For additional explanations of the
processing steps mentioned in the file, see for example the data report
for our "Finch1" Scanfish cruise off Hatteras in 2004.


Shipboard ADCP:

This CD contains the final version of the shipboard ADCP
data in matlab (.mat) format. The file "en425os_e"
contains the following variables:


depth   1x100   800   double array  
txy   4731x3   113544   double array  
u   4731x100   3784800   double array  
v 4731x100 3784800 double array


There are 4731 profiles with 100 vertical
bins each. The bin length was 8m. "u" indicates zonal
velocity, "v" indicates meridional velocity. "txy" stands for
time, longitude, latitude, with time in decimal days (noon on
January 1 corresponds to day 0.5). "depth" gives the center depth
of the ADCP bins.


The file en425_proc_notes.txt. gives a description of the ADCP data processing.

Bottom depth:

Bottom depth was derived by interpolating a bathymetry "map" provided
by John Goff, University of Texas / Arlington, onto the Scanfish and
ADCP profile positions.