A review of recent changes in Southern Ocean sea ice, their drivers and forcings

Hobbs, Will; Massom, Robert A.; Stammerjohn, Sharon; Reid, Phillip; Williams, Guy D.; Meier, Walter N.

doi:10.1016/j.gloplacha.2016.06.008

Cited by 250 publications

(311 citation statements)

References 256 publications

(379 reference statements)

Supporting

Mentioning

297

Contrasting

Order By: Relevance

“…Figure 9 shows the SIC trends during the austral summer (DJF, left-top) and during autral winter (JJA, left-bottom), and the significant trends (right plots). The results show that during austral summer and autumn (not shown) the largest trends are positive in the Weddell and western Ross Seas and negative in the Amundsen and Bellingshausen seas (ABS), which is in concordance with previous studies [1,11,12]. In winter (JJA) and spring (not shown), the statistically significant trends occur near the ice edge of the Ross Sea, with a decrease in the Bellingshausen Sea along the western coast of the Antarctic Peninsula.…”

Section: Resultssupporting

confidence: 91%

“…This trend is dominated by the positive trend in western Ross Sea and mitigated by the negative trend in other regions such as the Amundsen Sea [1]. Among the multiple atmospheric and oceanic drivers controlling the ice changes, little attention has been paid to variations in the transport of moisture from the extratropics, a mechanism proposed to have an important role on the Arctic atmospheric hydrological system [e.g., 2], with implications for the Arctic Sea ice extension.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

<strong>Patterns of atmospheric moisture transport linked to Southern Ocean Sea ice coverage changes</strong>

Nieto

Rocha

Gimeno‐Sotelo

et al. 2017

Proceedings of First International Electronic Conference on the Hydrological Cycle

View full text Add to dashboard Cite

and Amundsen and Bellingshausen seas. For most of these seas it was identified positive trends of E-P>0 anomalies, while negative trends were identified only for the SAUS moisture source to Amundsen and Bellingshausen Sea. In terms of SIC, for the whole Antarctic the total anomalies are increasing, but no breaking points in this time serie were detected. Preliminary results also indicate some areas, which do not coincide exactly with the limit of the regional seas, where the increase of Sea Ice Extension (SIE) is statistically significant.

show abstract

Section: Resultssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

<strong>Patterns of atmospheric moisture transport linked to Southern Ocean Sea ice coverage changes</strong>

Nieto

Rocha

Gimeno‐Sotelo

et al. 2017

Proceedings of First International Electronic Conference on the Hydrological Cycle

View full text Add to dashboard Cite

show abstract

“…The steady decline is what global climate models predict for a warming world 2 . Meanwhile, in Antarctic waters, sea-ice cover has been stable, and even increasing, brief anomaly or the start of a longer-term shift 6,7 ? Is sea-ice cover more variable than we thought?…”

mentioning

confidence: 99%

Solve Antarctica’s sea-ice puzzle

Turner

Comiso

2017

Nature

View full text Add to dashboard Cite

“…In the Antarctic, Hobbs et al (2016) have reviewed recent changes in sea-ice cover and the drivers responsible for the changes. Climate models suggest a future decrease in sea-ice extent and volume (IPCC, 2013).…”

Section: Expected Changes In Sea-ice Covermentioning

confidence: 99%

“…The CMIP5 multi-model mean projects a decrease between 1986-2005 and 2081-2100 in seaice extent that ranges from 16% to 67% in February, for RCPs 2.6 and 8.5, respectively, and from 8% to 30% in September. These projections, however, have low confidence because of the wide intermodel spread and the inability of almost all of the available models to reproduce the mean annual cycle, interannual variability, and the present overall increase of the Antarctic sea-ice areal coverage (IPCC, 2013;Hobbs et al, 2016).…”

Section: Expected Changes In Sea-ice Covermentioning

confidence: 99%

Advection in polar and sub-polar environments: Impacts on high latitude marine ecosystems

Hunt

Drinkwater

Arrigo

et al. 2016

Progress in Oceanography

View full text Add to dashboard Cite

a b s t r a c tWe compare and contrast the ecological impacts of atmospheric and oceanic circulation patterns on polar and sub-polar marine ecosystems. Circulation patterns differ strikingly between the north and south. Meridional circulation in the north provides connections between the sub-Arctic and Arctic despite the presence of encircling continental landmasses, whereas annular circulation patterns in the south tend to isolate Antarctic surface waters from those in the north. These differences influence fundamental aspects of the polar ecosystems from the amount, thickness and duration of sea ice, to the types of organisms, and the ecology of zooplankton, fish, seabirds and marine mammals. Meridional flows in both the North Pacific and the North Atlantic oceans transport heat, nutrients, and plankton northward into the Chukchi Sea, the Barents Sea, and the seas off the west coast of Greenland. In the North Atlantic, the advected heat warms the waters of the southern Barents Sea and, with advected nutrients and plankton, supports immense biomasses of fish, seabirds and marine mammals. On the Pacific side of the Arctic, cold waters flowing northward across the northern Bering and Chukchi seas during winter and spring limit the ability of boreal fish species to take advantage of high seasonal production there. Southward flow of cold Arctic waters into sub-Arctic regions of the North Atlantic occurs mainly through Fram Strait with less through the Barents Sea and the Canadian Archipelago. In the Pacific, the transport of Arctic waters and plankton southward through Bering Strait is minimal.In the Southern Ocean, the Antarctic Circumpolar Current and its associated fronts are barriers to the southward dispersal of plankton and pelagic fishes from sub-Antarctic waters, with the consequent evolution of Antarctic zooplankton and fish species largely occurring in isolation from those to the north. The Antarctic Circumpolar Current also disperses biota throughout the Southern Ocean, and as a result, the biota tends to be similar within a given broad latitudinal band. South of the Southern Boundary of the ACC, there is a large-scale divergence that brings nutrient-rich water to the surface. This divergence, along with more localized upwelling regions and deep vertical convection in winter, generates elevated nutrient levels throughout the Antarctic at the end of austral winter. However, such elevated nutrient levels do not support elevated phytoplankton productivity through the entire Southern Ocean, as iron concentrations are rapidly removed to limiting levels by spring blooms in deep waters. However, coastal http://dx

show abstract

A review of recent changes in Southern Ocean sea ice, their drivers and forcings

Cited by 250 publications

References 256 publications

<strong>Patterns of atmospheric moisture transport linked to Southern Ocean Sea ice coverage changes</strong>

<strong>Patterns of atmospheric moisture transport linked to Southern Ocean Sea ice coverage changes</strong>

Solve Antarctica’s sea-ice puzzle

Advection in polar and sub-polar environments: Impacts on high latitude marine ecosystems

Contact Info

Product

Resources

About