Monday 24 December 2007 à 09:20

"Sitidi", what’s that?

Sophie Mouge. Correspondent aboard the Aurora Australis

One of the first abbreviations that the French neophytes must learn to follow a scientific conversation is “CTD", which sounds like “sitidi” in French.

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Monday 24 December 2007 à 09:07

Data for the Aurora Australis at 12h30 (= 1h30 UT)

Sophie Mouge. Correspondent aboard the Aurora Australis

Position of the icebreaker:
- latitude: 66°02’074 S
- longitude: 143°17’750 E
Wind:
- direction: W
- speed: 7 knots
Water temperature: -1.2°C
Air temperature: -1°C
Atmospheric pressure: 987 hPa
Relative humidity: 77 %
UV-B: 3.3 W/m²
Water depth: 480 meters
Sunrise: above the horizon all day

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Monday 24 December 2007 à 09:05

Position of Aurora Australis

Sophie Mouge. Correspondent aboard the Aurora Australis

FROM: Martin Riddle
DATE: 24/12/07
REPORT (SITREP) NO.: 308
UNIVERSAL TIME: 0100
LOCAL (SHIP) TIME: 1200
AUSTRALIAN EASTERN STANDARD TIME: 1200
POSITION: -66 03.6, 143 17.3
HEADING: Various
CURRENT SPEED (KNOTS): 2.5
DISTANCE TO NEXT WAYPOINT (NAUTICAL MILES): N/A
DISTANCE COVERED LAST 24 HOURS (NAUTICAL MILES): 55.5
WEATHER CONDITIONS: Visibility good, overcast, wind 7 kts from 320T with gusts to 10 kts
AIR TEMPERATURE: -1.0 SEA
TEMPERATURE: -1.26
SEA CONDITIONS: Rippled seas & long low swell
ICE CONDITIONS: 3/10 open pack ice, with some older ice present
REMARKS: The first CEAMARC site took about 20 hours to complete as gear was tested and fine tuned. Each haul of the sleds and trawls is bringing up new and interesting material, a highlight this morning being the first Antarctic record for a particular group of molluscs. Yesterday the first run of the GA underwater video camera allowed us to see what the sea-bed we are sampling actually looks like. It is mostly fine sediment with typical soft sediment animals such as sea-cucumbers and brittle stars, dotted with rocks forming habitat for those species that need something firm to attach to, such as the feather stars.
Regards, Martin and Sarah.

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WEATHER


Water temperature: - 1,2 °C
Air temperature: - 1 °C

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