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sea ice

This tag is associated with 26 posts

Why is Antarctic Sea Ice Growing?

Despite increases in global ocean temperatures, long-term trends actually show an increase in Antarctic sea ice extent. There are a number of reasons for this apparent paradox: geography, ocean properties, and atmospheric circulation to name a few. This paper examines the role of atmospheric variability in driving Southern Hemisphere sea ice trends. Channing PrendI’m a […]

Sea Ice Mixes it Up

Sea ice extent and concentration is driven by a complex combination of circulation and mixing, as well as interaction with the atmosphere. Understanding these processes is critical to improving climate models. This study uses models to examine the dynamics in marginal ice zones, which is becoming increasingly important for future climate predictions. Channing PrendI’m a […]

It’s getting cold in here!

As we here into winter, we notice changes taking place in nature all around us. But what do microbes in the ocean do when it gets cold??? Laura ZinkeI am a PhD student studying sediment geomicrobiology at the University of Southern California. My primary research interests lie deep under the sea studying how microorganisms survive […]

Melting ice, shifting microbes

Polar bears have been the poster child for sea ice melting in the Arctic. But what does sea ice loss melt mean for the Arctic’s most numerous members – its microbes? Michael GrawI’m a 5th year PhD student at Oregon State University researching the microbial ecology of marine sediments – why do we find microbes […]

Antarctic krill retreat to icy terrace homes for the winter

An international research time dives beneath the ice in Antarctica’s remote oceans to understand how krill larvae make use of sea ice to survive the winter and make it to adulthood. Veronica TamsittI’m a PhD student at Scripps Institution of Oceanography in La Jolla California. My research is focused on the Southern Ocean circulation and […]

Orca vs Narwhal

Orcas are natural predators of narwhals, but they are seasonally kept at bay by Arctic sea ice. As the Arctic becomes increasingly ice-free, killer whales are arriving earlier and hanging out longer in narwhal habitat. How do narwhals fare? Read more to find out! Megan ChenI graduated with a Masters of Coastal & Marine Management […]

Atlantic confirmed as accomplice in Arctic sea ice loss

A team of scientist gathered new evidence from the Arctic Ocean, revealing a new suspect responsible for rapidly melting Arctic sea ice. Veronica TamsittI’m a PhD student at Scripps Institution of Oceanography in La Jolla California. My research is focused on the Southern Ocean circulation and it’s role in climate. For my research I sometimes […]

Throwing Babies out with the Sea Ice: Ringed Seals Response to Ice Decline

As the Earth warms, sea ice declines. What happens to those animals who rely on the ice? Today’s oceanbites looks at one animal, the ringed seal, and how it may be affected by climate change! Rebecca FlynnI am a graduate of the University of Notre Dame (B.S.) and the University of Rhode Island (M.S.). I […]

The Meltdown: Protists in the time of disappearing Sea Ice in the Arctic Ocean

Sea ice levels in the Arctic Ocean safeguard thousands of marine biosystems. Protists are little known micro-organisms that play a key role in maintaining a balanced oceanic ecosystem. Read more to see how climate change is affected sea ice-levels, and what that means for our protist comrades. Prabarna GangulyI’m a fourth year PhD candidate in […]

Sub sea ice technology aims to expand Arctic plankton surveys

A German research team tested out three devices for studying plankton in Arctic sea ice. These new methods might allow scientists to expand Arctic primary production studies and yield new insight into these important, understudied ecosystems. Eric OrensteinEric is a PhD student at the Scripps Institution of Oceanography. His research in the Jaffe Laboratory for […]

Pole wars: Episode 1 – The Phantom Sea Ice

In the sea ice battle between the North Pole and the South Pole, there is no winner in 2016, as sea ice cover is plummeting at both poles. Veronica TamsittI’m a PhD student at Scripps Institution of Oceanography in La Jolla California. My research is focused on the Southern Ocean circulation and it’s role in […]

Positive real estate outlook for Antarctic krill

An Australian research team predict future sea-ice habitats for Antarctic krill larvae, and are surprised to find more suitable ice habitats in the future, despite shrinking sea-ice cover. Veronica TamsittI’m a PhD student at Scripps Institution of Oceanography in La Jolla California. My research is focused on the Southern Ocean circulation and it’s role in […]

Why the Southern Ocean is getting less salty

The Southern Ocean has been getting less salty for decades, and scientists have finally proved that sea-ice is responsible for the extra fresh water in the ocean. Veronica TamsittI’m a PhD student at Scripps Institution of Oceanography in La Jolla California. My research is focused on the Southern Ocean circulation and it’s role in climate. […]

Looking to the tropics to explain Antarctica’s expanding ice

Scientists confirm an surprising explanation for Antarctica’s expanding sea ice in the tropical Pacific Ocean. Veronica TamsittI’m a PhD student at Scripps Institution of Oceanography in La Jolla California. My research is focused on the Southern Ocean circulation and it’s role in climate. For my research I sometimes spend months at sea on ice breakers […]

If You Must, Adjust? Polar Bears Leaving Sea Ice in the Arctic

Everyone knows that polar bears have become the poster children for species threatened by climate change. And it’s for good reason that they are. Polar bears rely on sea ice for access to prey, finding mates, and creating dens. The persistence of the species depends on the state of sea-ice and more generally a healthy […]

Iceberg Buffet: How giant icebergs bring food to plankton

While icebergs are calving from Antarctic glaciers at alarming rates, they may provide a negative feedback for the carbon cycle. Giant icebergs bring large amounts of iron to iron-poor areas of the Southern Ocean, stimulating primary productivity and boosting carbon sequestration. Zoe GentesZoe has an M.S. in Oceanography and a B.S. in Geologic Oceanography from […]

Plankton fill up ice-free summer homes

Source: Li, Y., R. Ji, S. Jenouvrier, M. Jin, and J. Stroeve (2016), Synchronicity between ice retreat and phytoplankton bloom in circum-Antarctic polynyas, Geophys. Res. Lett., 43, 2086–2093, doi:10.1002/2016GL067937. Antarctic coasts Despite the dark winters and freezing cold conditions, the coastline of Antarctica is a hotspot for growth of phytoplankton, the tiny, photosynthesizing organisms that […]

Arctic could become more biologically productive as ice melts

As Arctic sea-ice melts away, organisms will be exposed to more light and, potentially, more nutrients. Recent model work suggests that this combination will result in a more biologically active Arctic. But the net result might not be as positive as you think. Eric OrensteinEric is a PhD student at the Scripps Institution of Oceanography. […]

One person’s noise, is another person’s data

Measuring the heat content of deep ocean waters is critical to understanding how our global climate system works. It is also very difficult to do on a large scale. A group at the University of Georgia recently proposed a new technique to take the temperature of the deep ocean using only ambient noise and passive […]

How thick is polar ice?

Based on a simple theory, the authors of this study are able to make a prediction about the distribution of sea ice thickness that works remarkably well, and provides a novel approach to estimating how much ice the polar ice caps contain. caelCael was once told by a professor that applied mathematicians are ‘intellectual dilettantes,’ […]

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