STS
Shipboard Meteorological System
R/V New
Horizon
Chart
Room Pcode Receiver
Chart
room Trimble Differential GPS
Bridge Gyro Compass
A
description of the sensors that are on the R/V New Horizon follows:
Flying
bridge
_______________________________
Coastal
Environmental WeatherPak
Sample
rate once every 10 seconds
Air
Temperature
-50 to
+50 Deg C
Accuracy
+/- 0.15 Deg C
Relative
Humidity
Coast
Weatherpak
0 - 100
%
Accuracy
4%
or
Vaisala
HMP45D
0 - 100
%
Accuracy
2%
Barometric
Pressure
600 -
1100 hPa
Accuracy
3 hPa
Wind
Direction
0 - 360 Deg
Speed 0 - 60m/s
Short
Wave Radiation
Eppley
Labs PSP
Calibrated
Eppley Labs
approx
9uv/W/M2
Linearity
+/- 5% (0-2800 W/M2)
Temperature
Dependence +/- 1%
Long Wave
Radiation
Eppley
Labs PIR
Calibrated
Eppley Labs
approx
5uv/W/M2
Linearity
+/- 1.0% ( 0-700 W/M2)
Temperature
Dependence +/- 2%
_______________________________
*Aft
Lab
_______________________________
Seabird
SBE21 Thermosalinograph
Sample
rate once every 5 seconds
Water
Temperature
Range
-5 - +35 Deg C
Accuracy
+/- 0.01 Deg/6mo
Resolution
0.001
Conductivity
Range 0
- 6.5 S/m
Accuracy
+/- 0.001 S/m/month
Resolution
0.00001 S/m
Fluorometer
Wetlabs
Wetstar
Range
0.03-75 ug/l
2 Blue LED
excitation 460 nm
Measured
Wavelength Emission 695nm
_______________________________
Engine
Room
STS
Dual Temperature unit
Sea
Surface temperature
Range
-2 - 35 Deg C
Accuracy
+/- 0.1 Deg
Resolution
0.01
The sea
surface temperature sensors are Hull mounted RTD's that are located
in the
engine room below the water line. These two sensors are directly under the
insulation
and in contact with the inner hull. There are two of them in case
there
is a problem with one drifting or failing. These sensors are labled ST
in the
recorded data. The thermosalinograph temperature measures the temperature
at the
unit itself. There is some warming of the water as it flows through the
pump
and plumbing in order to reach the TSG unit in the lab. This is the temperature
at the
conductivity sensor and is what is used to calculate salinity.
*
Installed upon request prior to cruise
Met
Sensors Calibrated about every 6-12 months
Sensor
accuracy and calibration specifications as listed
are valid
if the sensors are in good working order and
have
been calibrated within the past six months.
Bow
sensors need to have proper water flow through the
uncontaminated
seawater system in order to produce valid
readings.