Day 2
03/26/08 2:01 am by Ocean Debris - Posted In : Daily Log
We departed Pearl Harbor at 0900 hrs and headed north along the west side of Oahu. Late morning, we ran thru a pod of dolphins and were treated to an aerial display of jumps and synchronized swimming. The winds were fair and the seas were down from yesterday. Once past the the northwest corner of the island, the swell began to hit us from the starboard side. Winds picked up to 25 kts with force 4-5 conditions.
A crew of observers is on-board for the purpose of logging debris sightings as well as sea-mammals. They are set up on the flying bridge with "big eye" binoculars that are mounted on a swivel base. With the sea conditions as they were, the observers quickly succumbed to sea-sickness and had to forgo the use of the binoculars. Despite the poor survey conditions, they managed to log their first piece of marine debris as well as occasional whale sightings.
This evening, another science crew will perform their first of many CTD tests. Once we get closer to the convergence zone, they will perform a CTD test every 15 NM. It takes about an hour to do this test, at which time the vessel has to come to a complete stop.
The UAS team was able to spend the day doing more unpacking and performing some initial tests of the autopilot systems. Curt decided to make a "sea-sickness" predictive tool by utilizing the IMU of the UAS guidance system and observing the accelerometer data. He was able to graph the vertical acceleration of the ship as it moved up and down in the ocean. Watching the real-time graph display what our heads were feeling was weird.
The sun set over a beautiful ocean with no sight of land at 1844 hrs.
A crew of observers is on-board for the purpose of logging debris sightings as well as sea-mammals. They are set up on the flying bridge with "big eye" binoculars that are mounted on a swivel base. With the sea conditions as they were, the observers quickly succumbed to sea-sickness and had to forgo the use of the binoculars. Despite the poor survey conditions, they managed to log their first piece of marine debris as well as occasional whale sightings.
This evening, another science crew will perform their first of many CTD tests. Once we get closer to the convergence zone, they will perform a CTD test every 15 NM. It takes about an hour to do this test, at which time the vessel has to come to a complete stop.
The UAS team was able to spend the day doing more unpacking and performing some initial tests of the autopilot systems. Curt decided to make a "sea-sickness" predictive tool by utilizing the IMU of the UAS guidance system and observing the accelerometer data. He was able to graph the vertical acceleration of the ship as it moved up and down in the ocean. Watching the real-time graph display what our heads were feeling was weird.
The sun set over a beautiful ocean with no sight of land at 1844 hrs.
05/03/08 2:09 pm
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