Friday 15 February 2008 à 16:11

Data for the Umitaka Maru

Graham Hosie (CEAMARC Leader) and Takashi Ishimaru (Voyage Leader)

Position of the icebreaker :
- Latitude : - 51° 38.5 S
- Longitude : 146° 02.3 E
Heading : 006
Current speed : 15 knots

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Friday 8 February 2008 à 11:17

Data for the Umitaka Maru

Graham Hosie (CEAMARC Leader) and Takashi Ishimaru (Voyage Leader)

Position of the icebreaker :
- Latitude : - 66° 17.4 S
- Longitude :142° 43.2 E
Heading : on station
Current speed : on station

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Thursday 7 February 2008 à 11:28

Data for the Umitaka Maru

Graham Hosie (CEAMARC Leader) and Takashi Ishimaru (Voyage Leader)

Position of the icebreaker :
- Latitude : - 66° 23.9 S
- Longitude :140° 43.5 E
Current speed : 10 knots
Heading : 090

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Tuesday 5 February 2008 à 13:54

Data for the Umitaka Maru

Graham Hosie (CEAMARC Leader) and Takashi Ishimaru (Voyage Leader)

Position of the icebreaker :
- Latitude : -66° 39.0 S
- Longitude : 139° 59.3 E
At anchor one mile north of Dumont d`Urville
Heading : at Anchor
Current speed : at Anchor (knots)

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Monday 4 February 2008 à 11:15

Data for the Umitaka Maru

Graham Hosie (CEAMARC Leader) and Takashi Ishimaru (Voyage Leader)

Position of the icebreaker :
- Latitude : - 65° 59.2 S
- Longitude :139° 39.1 E
Heading : on station
Current speed : on station

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Saturday 2 February 2008 à 10:24

Data for the Umitaka Maru

Graham Hosie (CEAMARC Leader) and Takashi Ishimaru (Voyage Leader)

Position of the ice breaker:
- Latitude : -64° 59.9 S
- Longitude : 140° 00.1 E
Heading : on Station
Current speed : on Station kts (knots)

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Sunday 27 January 2008 à 11:48

An exclusive interview with Edi!

Sophie Mouge. Correspondent aboard the Aurora Australis

Today, to close our adventure on the Aurora Australis, I’d like to introduce you to a person we have much appreciated and who is indispensable on board. This is Edi, the ship’s doctor.

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Saturday 26 January 2008 à 17:36

Awarding certificates

Sophie Mouge. Correspondent aboard the Aurora Australis

This morning, many of us wake to the sound of a thundering announcement: “Good morning to all expeditioneers! As you know, today is Australia Day. You are invited to the traditional Devonshire Tea in the mess at 10:00!”

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Saturday 26 January 2008 à 17:31

Data for the Aurora Australis

Sophie Mouge. Correspondent aboard the Aurora Australis

Position of the icebreaker:
- latitude: 44°01.034’ S
- longitude: 147°25.720’ E
Wind:
- direction: N-NE
- speed: 16 knots
Water temperature: 16.3 °C
Air temperature: 16.1 °C
Atmospheric pressure: 1,010 HPa
Relative humidity: 85 %
UV B: 7 W/m²
Water depth: 3,225 meters
Sunset: 20h46 / sunrise: 06h00

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Saturday 26 January 2008 à 12:17

Position of Aurora Australis

Sophie Mouge. Correspondent aboard the Aurora Australis

FROM: Martin Riddle
DATE: 26/01/08
REPORT (SITREP) NO.: 340
UNIVERSAL TIME: 0100
LOCAL (SHIP) TIME: 1200
AUSTRALIAN EASTERN STANDARD TIME: 1200
POSITION: -47 57.5, 145 47.6
HEADING: 357T
CURRENT SPEED (KNOTS): 12.0 kts
DISTANCE TO NEXT WAYPOINT (NAUTICAL MILES): 187 to PULSE mooring
DISTANCE COVERED LAST 24 HOURS (NAUTICAL MILES): 289.5
WEATHER CONDITIONS: Overcast with low cloud, 7/8th cover, good visibility, winds 23 kts from 330T gusting to 25 kts
AIR TEMPERATURE: 11.5
SEA TEMPERATURE: 11
SEA CONDITIONS: Vessel rolling slightly in moderate seas and NW'ly swell 20-3m
ICE CONDITIONS: Nil
REMARKS: The swell has moderated significantly since yesterday and everyone is much more comfortable as the ship gently rolls its way home via the PULSE mooring at about 45S. People still busy packing, processing data and preparing results. The partial pressure of CO2 (pCO2) in the ocean and atmosphere will continue to be measured until we reach Tasmania. The region of greatest CO2 concentration in the surface waters was measured at the SubAntarctic front (-53.8 S), where oceanic pCO2 was up to 25% above atmospheric levels. The SubAntarctic zone is a region of uptake for atmospheric CO2 throughout the year, with the highest uptake over summer due to shallower mixed layers and increased biological production. It is now well known that even slight acidification of the ocean caused by rising atmospheric CO2 levels will make it hard for some animals to build or maintain calcium carbonate shells. The combination of benthic biologists and chemists on the voyage has provided an excellent opportunity for exploring the likely impact of ocean acidification on the sea-bed living animals around Antarctica.
Regards, Martin and Sarah.

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Friday 25 January 2008 à 17:28

Thanks to everyone!

Sophie Mouge. Correspondent aboard the Aurora Australis

The CEAMARC-CASO expedition on board the Aurora Australis is ending!

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Friday 25 January 2008 à 17:25

Data for the Aurora Australis

Sophie Mouge. Correspondent aboard the Aurora Australis

Position of the icebreaker:
- latitude: 47°22.711’ S
- longitude: 145°45.661’ E
Wind:
- direction: N
- speed: 23 knots
Water temperature: 11 °C
Air temperature: 11.9 °C
Atmospheric pressure: 1,010 HPa
Relative humidity: 80 %
UV B: 3 W/m²
Water depth: 3,225 meters
Sunset: 21h04 / sunrise: 05h54

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Thursday 24 January 2008 à 17:22

Consolidating the data from the campaign

Sophie Mouge. Correspondent aboard the Aurora Australis

Our last night was a very short one. The party was a real success. We went to bed late (or early, depending on the person!). The ocean swells invited themselves and were particularly strong, which kept us from sleeping soundly.

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Thursday 24 January 2008 à 17:18

Data for the Aurora Australis

Sophie Mouge. Correspondent aboard the Aurora Australis

Position of the icebreaker:
- latitude: 51°74.062’ S
- longitude: 144°14.844’ E
Wind:
- direction: NW
- speed: 24 knots
Water temperature: 7.2 °C
Air temperature: 8.5 °C
Atmospheric pressure: 1,005 HPa
Relative humidity: 80 %
UV B: 7.7 W/m²
Water depth: 3,468 meters
Sunset: 21h29 / sunrise: 05h41

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Thursday 24 January 2008 à 12:35

Position of Aurora Australis

Sophie Mouge. Correspondent aboard the Aurora Australis

FROM: Martin Riddle
DATE: 24/01/08
REPORT (SITREP) NO.: 339
UNIVERSAL TIME: 0100
LOCAL (SHIP) TIME: 1200
AUSTRALIAN EASTERN STANDARD TIME: 1200
POSITION: -52 25.3, 143 26.4
HEADING: 044T
CURRENT SPEED (KNOTS): 13.0 kts
DISTANCE TO NEXT WAYPOINT (NAUTICAL MILES): 466
DISTANCE COVERED LAST 24 HOURS (NAUTICAL MILES): 247.3
WEATHER CONDITIONS: Mostly cloudy, with sunny intervals, fine, good visibility, winds 25 kts from 270T gusting to 30 kts
AIR TEMPERATURE: 7.5
SEA TEMPERATURE: 7.6
SEA CONDITIONS: Rough seas and heavy W'ly swell 4m
ICE CONDITIONS: Nil
REMARKS: The heavy swell caused a bit of motion in the ship last night and the vessel course is being adjusted slightly to minimise discomfort while still making good speed. Although most of the scientific sampling is now complete, some will continue until we steam up the Derwent. The CO2 group are still measuring pCO2 in surface waters and the atmosphere, are taking 6 hourly underway samples for 02, CO2, salinity, nutrients and oxygen isotopes and are continuing to analyse CTD samples previously collected. The phytoplankton group are continuing with underway sampling of surface water from the seawater line 2 to 4 times per day to assess phytoplankton productivity. Most on board are continuing to process samples, collate data or prepare preliminary reports. Last night the ship's company was treated to a soiree-style entertainment featuring many of the very talented musicians and performers on board. Our thanks go to all involved for making it a very special occasion.
Regards, Martin and Sarah.

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