Measurements
Fugro
OCEANOR has
been carrying
out
measurements
and studies
for the oil
industry,
coastal
engineering
companies,
national and
regional
organisations
and
authorities
worldwide
since the
early
seventies. The
collection of
environmental
data, used to
determine
design
conditions and
for monitoring
offshore
operations,
has been the
major activity
during that
time. Fugro OCEANOR
offers an
extensive
stock of metocean
instruments
including the
following:
-
Current
meters:
Both single
point moored
current
meters and
Acoustic
Doppler
Current
Profilers
(ADCPs) are
available. A
single ADCP
is capable
of measuring
the current
profile over
a vertical
extent of
some 500 m.
All moored
current
meters are
equipped
with
internal
logging
allowing
extended
unattended
operation.
Current
measurements
can also be
made
attached to
a SEAWATCH
buoy, as
part of a
multi-parameter
data
collection
campaign.
-
Surface
drifters:
Typically
used for
mapping the
surface
currents in
an area and
for the
tracking of
oil spills.
-
Metocean
data buoys:
We operate
one of the
largest
fleets in
the world of
data buoys
designed for
deep ocean,
extreme wave
and current
conditions.
Both
meteorological,
ocean wave
(including
wave
direction),
current, sea
temperature
and salinity
data can be
collected.
We offer
both the
WAVESCAN and
the SEAWATCH
buoys and
advise the
customer as
to the most
appropriate
system
according to
the location
and the
customer
requirements.
The Seawatch
buoy can
also be
equipped
with various
other
environmental
sensors (see
below). Data
are, as a
standard,
stored on
the buoy. In
addition,
data can be
transmitted
by satellite
or radio
link for
operational
and for
system
monitoring
purposes.
Smaller
buoys, such
as
Directional
Waveriders,
are also
available if
only wave
data are
required.
-
Temperature
and salinity
sensors:
These
parameters
are also
recorded by
the current
meters, or
using a CTD
string or a
standard
CTD.
-
Pressure
sensors:
Measurement
of sea
elevation
and ocean
waves from
bottom
mounted
instruments
in shallow
water.
-
Meteorological
sensors:
Available
mounted both
to buoys,
offshore
platforms
and on the
coast.
The
metocean
measurement
services is
operated
through the
Fugro
oceanographic
business line,
in
co-operation
with Fugro
GEOS and more
information
may be found
here.
Consultancy
Most
instrumentation
has its own
self-contained
data analysis
software; for
example,
directional
wave analysis
is standard on
our wave data
buoys allowing
directional
spectra to be
available in
real time.
Further, the
data retrieved
from the
on-board
storage are
routinely
analysed and
quality
controlled by
our team of
experienced
meteorologists
and
oceanographers.
A flexible
data analysis
and
presentation
system is used
and both
measured data
and data from
the analysis
can be
supplied in a
number of
formats,
depending on
the users
requirements.
The data are
further
provided to
the customers
with a
standard data
report in
which the data
are presented
both as time
series plots
and summary
statistics. In
addition,
extreme value
analysis,
harmonic
constants,
data
interpretation
etc. can be
incorporated.
with our
unique global
wave and wind
data sets from
satellites and
models.
Fugro
OCEANOR has
also carried
out more
specialised
studies for
the offshore
and other
maritime
industries
based on the
collected data
and other data
sources.
Examples of
such work
include
studies of
wave
kinematics and
asymmetry,
joint
probability
studies,
studies of
physical
processes,
model and
instrument
validation
etc. Fugro
OCEANOR is
also actively
integrating
satellite data
with measured
and global
wave model
data to give
additional
information on
the temporal
and spatial
variability of
the metocean
conditions in
a region.
Representativity
of a measured
series with
respect to the
longer term
can easily be
assessed using
these data.
Two examples
of wave
climate
products are,
first, World
Wave Atlas
(http://www.oceanor.com/products/wwa.htm),
which makes
global
satellite and
model data
easily
available to
customers
worldwide as a
series of wave
and wind
climate
atlases for
any country,
and, secondly,
WorldWaves
(http://www.oceanor.com/products/WorldWaves.htm),
which is the
first of a new
generation of
coastal wave
atlases.
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