Time series oceanographic observations:
The time series data from
Site A, Site B, and from
NOAA Buoy 44013 are included on this DVD-ROM
in several formats. For each instrument deployment (see data
available or mooring
log for mooring numbers), data at the basic sampling interval (typically
3.75 minutes), hour-averaged, and low-passed are included in netCDF
format as individual files. Concatenated data (data obtained at common
depths merged together) for hour-averaged and low-passed data are included
in netCDF, ASCII, and as a Matlab .mat file. ADCP
data are included as individual files in netCDF format.
The data format is the EPIC
netCDF standard defined by the
NOAA Pacific Marine
Environmental Laboratory (PMEL).
NetCDF is a very general, self-documenting, machine-transportable data format
created and supported by UCAR (
http://www.unidata.ucar.edu/packages/netcdf/).
EPIC (
http://www.pmel.noaa.gov/epic/)
is a set of standards which allow researchers from different organizations
to share oceanographic data without having to translate "foreign"
data types into the local vernacular.
The naming convention for
netCDF data files is as follows:
4801Aspd-a1h_d1.cdf
| 4801A |
spd |
-a1h |
_d1 |
.nc |
| |
|
|
_d1
_d2
etc |
(optional) depth identifiers used when a single data logger records the same variables at
different depths (requiring separate EPIC "time series" data files) |
| |
|
-a
-a1h
-alp
-m
-m1h
|
best basic version
hour averaged best basic version
low-pass filtered best basic version
merged basic versions
merged then hour averaged |
| |
spd or s
v
tct
p
psd
var
ox
cst
t
tc
tcp
att or ats
pct
adc
vm
sc
mc
(none) |
velocities corrected for speed of sound
velocities (averaged or basic time step
temperature, conductivity, transmission
pressure (averaged or basic time step)
pressure standard deviation
variances and covariances of velocity
oxygen
conductivity, salinity, temperature
temperature
temperature, conductivity
temperature, conductivity, pressure
transmission and attenuation
pressure, conductivity (salinity), transmission
all ADCP variables
all VMCM variables
all SEACAT variables
all MicroCAT variables
all data from this data logger |
| Traditional data identifier |
First three digits identify moorings chonologically. Fourth digit
identifies data loggers sequentially from the surface. Capital letter suffix (optional)
identifies data subsets. |
Description
of Variable Names Within Files
NOAA Buoy, Site A, and Site B - concatenated data
Site A (Data by deployment)
Site B (Data by deployment)
Sediment Trap Data:
The heights of the sediment in each bottle provide a visual assessment
of the relative collection rate over each 9-day period during the deployment.
The measured collection rate in g/m2/day
is plotted in Time
Series Plots. The list is sorted by date of deployment and the location
(either site A or B). Results from a few deployments are missing because
the instrument malfunctioned or was lost. Some photographs contain less
than the standard 13 bottles or show a nearly full sample bottle followed
by a few empty bottles. This pattern occurs when storm resuspension overfills
a bottle and plugs the funnel.
Sediment collection rates
for time-series and tube sediment traps
Definitions
of column headings
Photographs
of time-series trap sampling bottles
 To view files in PDF format, download free copy of Adobe Reader.
|
[an error occurred while processing this directive]