Charts for the past 24 hours

(sometimes the charts will only show data from midnight, depending on whether the program has been restarted after midnight, in which case it doesn't read any data from the previous day.)

Wind Speed - Knots

Note that there are 2 wind speed/direction sensors. One is placed at the north-east corner of an oil platform and the other is placed at the south-west corner of the same platform. The sensors must be placed fairly low so as not to cause problems with helicopter landings. It was noted that with the low position, when the wind was coming from the opposite side of the platform, the flow would be distorted by the platform before reaching the sensor. The problem has been solved by using 2 sensors & always using the highest wind reading, along with it's corresponding wind direction reading.

Note also that the wind speed spikes of up to 40 or 50 knots are caused by helicopter landings & takeoffs.

Wind Direction - degrees FROM

Note that there are 2 wind speed/direction sensors. One is placed at the north-east corner of an oil platform and the other is placed at the south-west corner of the same platform. The sensors must be placed fairly low so as not to cause problems with helicopter landings. It was noted that with the low position, when the wind was coming from the opposite side of the platform, the flow would be distorted by the platform before reaching the sensor. The problem has been solved by using 2 sensors & always using the highest wind reading, along with it's corresponding wind direction reading.

Barometric Pressure - Milibars

Note that there are two sensor readings. The sensor showing the orange trace is currently giving incorrect readings. The sensor showing the blue trace is giving correct readings. The faulty sensor is still in place in order to see if it fails completely or comes good.

Air Temperature - °C (deg Celcius)

Note that there are 4 temperature sensors in this system, 1 in each of the 2 barometric pressure sensors, and 1 in each of the 2 wind speed/direction sensors. The difference in temperature can be attributed to the different locations of the sensors - the wind sensors are on the helideck & are exposed to solar radiation, while the barometric pressure sensors are at the side of the platform & are sometimes exposed to heat radiated from the gas flare.

Seabed Temperature - °C (deg Celcius)

Sea Surface Temperature - °C (deg Celcius)

Current Direction - knots

Current Speed - ° TO

Tide Height - metres

Significant Wave Height & Maximum Wave Height - metres

X-Axis values displayed are in dd hh:mm format and are THAI time (GMT + 07:00)

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