scispace - formally typeset
Search or ask a question

What are the impacts of rain on sea ice in Antarctica? 


Best insight from top research papers

Rainfall has significant impacts on sea ice in Antarctica. Surface flooding of sea ice in the summer can cover a large portion of the ice pack, leading to changes in ice thickness and the depth of the flooded layer . Additionally, increased freshwater input to the ocean can increase the extent of sea ice . However, extreme freshwater additions can have a negative effect on sea ice extent . The spatial distribution of freshwater is also important, as it affects sea ice dynamics and thermodynamics, leading to changes in sea ice concentration and thickness . Overall, rainfall can play a role in shaping the characteristics and extent of sea ice in Antarctica.

Answers from top 5 papers

More filters
Papers (5)Insight
The provided paper does not specifically mention the impacts of rain on sea ice in Antarctica.
Open access
01 Jan 2002
2 Citations
The provided paper does not discuss the impacts of rain on sea ice in Antarctica.
The provided paper does not mention the impacts of rain on sea ice in Antarctica.
The provided paper does not mention the impacts of rain on sea ice in Antarctica.
The provided paper does not discuss the impacts of rain on sea ice in Antarctica.

Related Questions

How does the melting of Antarctica's ice affect global sea levels and climate patterns?5 answersThe melting of Antarctica's ice has significant implications for global sea levels and climate patterns. Antarctic ice-sheet meltwater input influences global warming rates, with models showing reduced warming when realistic meltwater fluxes are considered. Surface melting in Antarctica can lead to ice-sheet instability, hydrofracturing, and potential ice-shelf collapse, accelerating glacier outflow into the ocean and contributing to sea-level rise. Additionally, Antarctic meltwater alters surface temperatures, sea ice extent, and ocean circulation patterns, impacting global climate responses, including surface cooling, subsurface warming, and changes in precipitation patterns. Future projections suggest that Antarctic ice-shelf basal melting responds superlinearly to atmospheric warming, potentially exacerbating ice-sheet mass loss and sea-level rise under extreme warming scenarios.
What are the primary factors driving changes in the extent of sea ice in the Antarctic Peninsula?5 answersThe primary factors driving changes in the extent of sea ice in the Antarctic Peninsula are a combination of atmospheric and oceanic processes. The atmospheric conditions, such as anomalous winds and large-scale circulation patterns, play a major role in driving the decline in sea ice extent. The intensification of atmospheric zonal waves and enhanced poleward transport of warm-moist air contribute to the decline in sea ice. Additionally, the ocean conditions, particularly the subsurface Southern Ocean, play a critical role in the persistence of negative anomalies in sea ice extent. The subsurface warming of the Southern Ocean destabilizes the ocean from below, leading to a gradual reduction in sea ice extent over several years. These findings suggest that both the atmosphere and the ocean contribute to the changes in sea ice extent in the Antarctic Peninsula.
What are the impacts of raindrop on sea ice ?4 answersRaindrops can have significant impacts on sea ice. They can alter the boundaries of objects in a scene, degrading the identification performance of sea ice. Rain-on-snow (ROS) events, where liquid water is deposited onto existing snowpacks and then refreezes, can also affect sea ice variables retrieved from satellite observations. ROS can change radar backscatter and microwave emissivity, impacting the accuracy of sea ice measurements. In situ analysis during the Arctic Ocean MOSAiC Expedition showed that ROS and subsequent refreezing led to changes in radar energy, waveform shape, and microwave emissivity. These changes were significant enough to impact satellite returns and affect the detection and assessment of ROS over sea ice. Rainfall on snowpacks can also accelerate snowmelt and decrease snow depth, potentially influencing the surface energy budget and contributing to sea ice losses.
What are the impacts of rain and rainfall on ice cover ?5 answersRain and rainfall have significant impacts on ice cover. Winter precipitation, including snowfall and rain, can reduce the total ice volume and thickness in large lakes, leading to shorter ice duration and earlier warming of the water surface. In the Arctic, rainfall events have increased in frequency and intensity, triggering and accelerating snow and ice melting by reducing albedo and releasing latent heat. Winter precipitation, such as snowfall and rain, can affect river ice processes and channel parameters, leading to changes in ice cover thickness and formation. Rainfall events can also enhance the concentration of ice nuclei, including biological particles, which can impact subsequent precipitation events. Overall, rain and rainfall can have both direct and indirect effects on ice cover, including reducing ice volume, accelerating melting, and influencing ice formation processes.
What are the impacts of rain and rainfall on sea ice ?5 answersRain and rainfall can have significant impacts on sea ice. When liquid water accumulates in the snowpack, it can lead to a decrease in radar energy returned at Ku- and Ka-bands. However, after the snowpack refreezes and ice layers form, there is a subsequent increase in returned energy. In addition to altering radar backscatter, rain and refreezing can also change the waveform shape of the returned waveforms. Microwave emissivity at certain frequencies can increase with increasing liquid water content and decrease as the snowpack refreezes, but subsequent ice layers can alter the polarization difference. These impacts of rain and refreezing on sea ice can affect the accuracy of sea ice variables retrieved from satellite radar altimetry, scatterometers, and passive microwave radiometers.
How does climate variability affect the antarctic ice sheet?4 answersClimate variability has a significant impact on the Antarctic ice sheet. Shorter-period variability, such as El Niño Southern Oscillation (ENSO) and the Southern Annular Mode (SAM), has been associated with ice-mass variability. The positive SAM forcing, likely due to anthropogenic activity, has contributed to approximately 40% of the ice-mass trend since the 1940s. On longer timescales, simulations suggest that ice-sheet-atmosphere interactions and changes in CO2 levels affect the variability of the Antarctic ice sheet during the Miocene period. These interactions, including the positive albedo-temperature feedback and the negative feedback between ice volume and precipitation, decrease the amplitude of ice volume variability. Additionally, teleconnections between the tropical Atlantic and the Antarctic can influence Antarctic sea ice variability through the stationary Rossby wave mechanism. The meridional dipole SST anomalies in the tropical Atlantic generate atmospheric circulation anomalies that affect sea ice concentration in the Ross Sea, near the Antarctic Peninsula, and east of the Weddell Sea.

See what other people are reading

How has climate change affected the timing of river ice formation and melting events?
5 answers
What is the purpose of topographical,geological?
4 answers
What is the science behind puddles?
5 answers
How does ice sheet melting influence sea ice?
5 answers
How does ice shelf melting influence sea ice?
5 answers
How does ice sheet melting influence sea ice?
5 answers
How does ice shelf melting influence sea ice?
5 answers
What are the primary factors that influence the phenology of landfast ice in various regions?
5 answers
What is the ecological role of fast ice in marine ecosystems?
5 answers
What geomorphological characteristics typical to impacts of ice sheet?
5 answers
Geomorphological characteristics typical to the impacts of ice sheets include the presence of distinct landforms like elongated mega-scale glacial lineations, ice stream shear margin moraines, and major sedimentary depocentres. Additionally, relict landforms such as tors, blockfields, and patterned ground are preserved due to frozen-bed conditions during glaciation. Glacial erosion generates landscape evolution and relief production, aiding in the assessment of paleoenvironmental factors. Furthermore, the identification of palaeo-ice streams relies on diagnostic geomorphological criteria like large flow-set dimensions, convergent flow patterns, and attenuated subglacial bedforms, aiding in accurate reconstructions of former ice sheets. Transverse and elongated glaciogenic ridges perpendicular to ice flow, known as Ribbed Moraines, are also key elements in understanding ice sheet dynamics and processes.
What factors influence the increase in Arctic ship traffic data (ASTD)?
5 answers
Factors influencing the increase in Arctic ship traffic data (ASTD) include diminishing sea ice levels, which have opened up historically inaccessible areas like the Northern Sea Route and Northwest Passage, leading to more maritime activities. Changes in vessel traffic patterns are also influenced by the abundance and distribution of fisheries resources, economic feasibility of Arctic marine travel, and inherent risks associated with such activities. Additionally, the desire to utilize the Arctic's natural resources and the competitiveness of Arctic shipping routes contribute to the rise in ship traffic. Furthermore, observed declines in Arctic sea ice cover have led to significant increases in shipping activity, with reductions in sea ice concentration correlating with heightened vessel operations in certain regions. The interplay of these factors underscores the complex dynamics shaping the surge in Arctic ship traffic.