Field Work

Antarctic voyage: Q and A

Guest Author Mar 11, 2013

Date: 10/03/2013 Location: 49.181135°S, 166.812487°E Weather: Rain and up to 40 knots Sea state: 3 to 4 m swell The last few days of the voyage, and some final questions answered! Firstly, from Greytown School years 4 and 5. What clothing and special gear do you need to wear when you are on deck on the … Read More

Antarctic Voyage: Ocean Acidification

Guest Author Mar 06, 2013

Written by Elizabeth Shadwick (ACE CRC) Date:5/3/2013 Location: 62.803893°S, 147.03681°E Weather: Cloudy, 25-30 knots Sea state: 3-4 m swell Pink Errina fissurata attached to pebbles on the Ross Sea slope, Antarctica at 470 m depth. Other invertebrates visible in the image are a variety of sponges and the white spiky brittle star Ophiacantha pentactis. [ … Read More

Antarctic Voyage: The CTD

Guest Author Mar 05, 2013

Written by NIWA oceanographer and voyage leader Dr Mike Williams. Date: 4/03/2013 Location: 63.394131°S, 149.553421°E Weather: Cloudy, snow and rain, 25 knots of wind Sea state: 3-4 m swell CTD about to be deployed. [Jill Scott]With 10 days left of the voyage we are now heading north, starting to make our way back to Wellington. As … Read More

Antarctic Voyage: On the shelf at last!

Guest Author Mar 01, 2013

Date: 28/2/2013 Location: 66.170212°S, 147.947581°E Weather: Cloudy with the odd sunny spell, a light breeze and very cold Sea state: Calm and icy Sea ice image from 26th February 2013. [NASA MODIS satellite]Sunny, clear days definitely make this region look less formidable and give it a magical glow. They also provide us with good sea … Read More

Antarctic voyage: Mud, mud, glorious mud

Guest Author Feb 28, 2013

Date: 27/2/2013 Location: 66.5914˚S, 148.064901˚E Weather: 10 knots and clear Sea state: Calm …Nothing quite like it for cooling the blood. Especially when the air temperature is below freezing. Multibeam data for canyons. [Helen Bostock; data supplied by Alix Post,Geoscience Australia]We have successfully collected a couple of cores from the Antarctic slope in between some … Read More

Antarctic Voyage: The biological pump – the importance of microscopic phytoplankton

Guest Author Feb 27, 2013

Writtenby  Helen Bostock (Marine Geologist, NIWA) and Elizabeth Shadwick (ACE CRC) Date: 26/2/2013 Location: 65.111248°S, 146.056312°E Weather: Sunny, less than 20 knots Simplified Antarctic food web. [Courtney Derriman]Sea state: 1-3 m swell Phytoplankton are microscopic plants that live at the surface of the ocean. There are billions of them in ocean surface waters, which are then grazed … Read More

Antarctic Voyage: The discovery of the Mertz Region

Guest Author Feb 26, 2013

Written by Dr Helen Bostock  (Marine Geologist, NIWA). Date: 25/2/2013 Location: 65.507326°E, 143.982206°S Weather: Cloudy and foggy, gentle wind (<20 knots) Sea State: 2-3 m swell Given the issues we are having with accessing the coast due to the sea ice this year, it seems incredible that just over 100 years ago an Australian expedition landed … Read More