Monterey Bay Aquarium Research Institute

Antarctic Expedition 2009
March 6 - April 15, 2009
Northwestern Weddell Sea

Life on the ship

Summertime in the Southern Hemisphere
March 9, 2009

Seasons in the southern hemisphere are opposite from those in the northern hemisphere due to the tilt of the earth. The first ICEBERG cruise occurred in December 2005, equivalent to the austral (southern hemisphere) spring. The second cruise was in the winter (May and June 2008), and this third cruise is happening during austral summer. So while winter rains are falling in California, we encounter summer conditions in the Southern Ocean.

A summer surprise when we arrived in Punta Arenas was the availability of certain types of fruit. Everyone was used to eating citrus and apples in the U.S. (since those are in season this time of year), but since arriving in Chile, we have been feasting on fresh peaches, plums, grapes, avocados, mangoes, and pineapples—all summer fruits—even aboard the ship.

Jake Ellena with a cocoanut out in the Antarctic.
Jake Ellena with a cocoanut out in the Antarctic. Photo by Ron Kaufmann

One of the major advantages to doing our work in the summer is day length. Daylight near the poles lasts a long time during summer—sunrise today was at 6:30 AM and sunset was at 7:45 PM, with light remaining in the sky until almost 9:00 PM. Extended daylight means more time to deploy certain equipment requiring visual acuity, such as the ROV, LST, and UAV. Other equipment can be deployed any time of the day, with the MOCNESS preferably at night.

More daylight and higher temperatures (though still near-freezing) also mean that the icebergs are melting faster than in the winter. With faster rates of melting, the chance of detecting a meltwater signature from the icebergs in the seawater may improve.

— Amanda Kahn













          6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31

1 2 3 4
5 6 7 8 9 10 11
12 13 14 15      

IceburgExpedition Homepage
Find out why our scientists and equipment are in the Antarctic.

Unmanned Aerial VehicleDaily Expedition Logs
Find out what the scientists are doing daily out in the antarctic.

ROV PhantomExpedition Equipment
A detailed look and description of the equipment used on this cruise.

Ken SmithResearch Team
Meet and see photos of the scientists on this cruise.

Google EarthFollow the ship's voyage
A link to the expedition's voyage on Google Earth.

phytoplanktonExploratorium's Ice Stories
Antarctica's Iceberg Phytoplankton

Additional Links