Australia: The Land Where Time Began

A biography of the Australian continent 

The Cryosphere

The surface temperatures of the Earth are close to the triple point of water, 273.16 K, the temperature at which all 3 states of water coexist as water vapour (gas), liquid water and ice (solid) in thermodynamic equilibrium. Water is the only substance that is found naturally in all 3 phases on Earth. Temperatures are below the triple point of water, for at least part of the year, in about 35 % of the world, including about half of the land mass of the Earth, promoting frozen water at the surface of the Earth. All aspects of this frozen realm are encompassed in the global cryosphere, such as glaciers and ice sheets, sea ice, lake ice and river ice, permafrost, seasonal snow, and ice crystals in the atmosphere.

Temperatures over much of the Earth's surface oscillate about freezing temperature with the result that the cryosphere is especially sensitive to global mean temperature changes. Global climate is also affected directly by the state of the cryosphere because of its tight coupling which represents one of the strongest feedback systems of the Earth. The net radiation from the Sun is the primary governing factor of the Earth's temperatures.  Solar variability is modest on annual to million-year timescales, being less than 1 % of the solar constant, which results in net reflectivity being controlled by global albedo, which is highly influenced by the extent of the area covered by snow and ice on the surface of the Earth, making global albedo the single most dynamic control of net radiation. The climate models by Mikhail Budyko and William Sellers, that are said by the author1 to be simple but illuminating, explored this feedback in the late 1960s, and demonstrated the delicate balance between the cryosphere and the climate of the Earth.

  1. Abyssal Ocean Warming and Salinification Following Weddell Polynyas in GDFL CM2G Coupled Climate Models
  2. Amundsen Sea Ice Shelves – Increased Melting of Ice Shelves in the Amundsen Sea
  3. Amundsen Sea Shelf Break – Oceanographic Observations
  4. Ancestral East Antarctic Ice Sheet - Anatomy of a Meltwater Drainage System Beneath it
  5. Anomalous Arctic Warming Linked to Reduced North American Terrestrial Primary Productivity
  6. Antarctic Bottom Water in the Eastern Weddell Gyre – Remotely Induced Warming
  7. Antarctic Bottom Water - Freshening and Warming 1980s-2000s
  8. Antarctic Climate Change and Environment - Deep-Time, the Geological Dimension
  9. Antarctic Climate Change and Environment - The Holocene
  10. Antarctic Climate Change and Environment - Changes During the Instrumental Period
  11. Antarctic Climate Change and Environment - Next 100 Years
  12. Antarctic Dry Valleys – Formation of Thermokarst in the McMurdo Dry Valleys
  13. Antarctic Sea Ice
  14. Arctic Sea Ice Incredibly Thin Shocks Researchers
  15. Antarctic Sea Ice Expansion - Important role of Ocean Warming and Increased Ice-Shelf Melt
  16. Arctic Methane Release – Global Impact
  17. Antarctica - Role in Global Environment
  18. Antarctica - East Antarctic Ice Sheet
  19. East Antarctic Ice Sheet - Dynamic Behaviour During the Pliocene Warmth
  20. East Antarctica - Abrupt Climate Warming in the Early Holocene
  21. Antarctica – Changing Icescapes
  22. Antarctica - Glacier Tongues
  23. Antarctic and Greenland Ice Sheets - Acceleration of their Contribution to Sea Level Rise
  24. Antarctica - Outlet, Valley and Piedmont Glaciers
  25. Antarctica - Ice Sheets - the glacial setting at the present
  26. Antarctica - Ice Shelves
  27. Antarctica - Ice Flow Sensitivity of Pine Island Glacier to Geothermal Heat Flux
  28. Antarctica – The Threat Beneath
  29. Glacier Changes in Asia
  30. Larsen C Ice Shelf, Basal Crevasses – Implications of meltwater ponding and Hydrofracture
  31. Larsen C Ice Shelf – Impact on Basal Melting of Tide-Topography Interactions
  32. Larsen C Ice Shelf – In situ Observations of Ocean Circulation Beneath it
  33. Larsen C Ice Shelf – Marine Ice Formation in a Suture Zone and its Influence on the Dynamics of the Ice Shelf
  34. Larsen C Ice Shelf – the Structure and Effect of Suture Zones  
  35. Antarctica - Pine Island Glacier, subglacial melt channels & Fracture in Floating Part
  36. Antarctica - Pine Island Glacier, West Antarctica, Rapid Subglacial Erosion
  37. Antarctica - Pine Island Glacier, West Antarctica, Sustained Glacier Retreat
  38. Antarctica - Pine Island Bay, West Antarctica – Ice Cavity Water Export
  39. Antarctica - Polygonal Ground in the McMurdo Dry Valleys, Antarctica – it’s Relationship to Depth of the Ice Table and Recent Climatic History
  40. Antarctica - Sea Ice
  41. Antarctica – Thwaites Glacier Basin, West Antarctica, Marine Ice Sheet Collapse Potentially Underway
  42. Antarctica - The West Antarctic Ice Sheet - WAIS
  43. Antarctic Surface Waters - Abrupt Cooling and Sea Ice Expansion in the Southern Ocean, South Atlantic Sector at 5,000 Cal Yr BP
  44. Atlantic Overturning Circulation and Labrador Sea Convection Affected by Recent Increases in the Influx of Arctic Freshwater
  45. Bψlling Transition – Global climate Changes Near-Synchronous in Ice Core Record
  46. Bottom Water Export from Western Ross Sea, 2007-2010
  47. Brinicles
  48. Centennial Retreat of Glaciers - Categorical Evidence of Climate Change
  49. East Siberian Arctic Shelf Waters Acidification by Freshwater Addition and Terrestrial Carbon
  50. Submarine End Moraines on the Continental Shelf Off NE Greenland - Implications for Late Glacial Dynamics
  51. Climate Feedback
  52. The Cryosphere - Biosphere Interactions
  53. The Cryosphere - The Geography of Snow and Ice on Earth
  54. The Cryosphere - Glaciers & Ice Sheets
  55. The Cryosphere - Albedo of Snow and Ice
  56. The Cryosphere - Effects on the Hydrological Cycle
  57. The Cryosphere - Interaction between Ocean and Ice 
  58. The Cryosphere - Influence on Circulation of the Atmosphere
  59. The Cryosphere - As a Latent Energy Buffer
  60. The Cryosphere - Permafrost
  61. During the Transition from the Last Interglacial to the Last Glacial Air-Sea Decoupling Occurred in Western Europe
  62. Decoupling of Air-Sea Temperature in Western Europe During the Interglacial-Glacial Transition
  63. East Antarctic Ice Shelf – Meltwater Produced by Interaction between wind and albedo stored in the East Antarctic Ice Sheet
  64. Glaciers – Substantial mass Loss in the Tien Shan over the past 50 Years
  65. Global Thermohaline Circulation
  66. Greenland Ice Flow for the international Polar Year 2008-2009
  67. Greenland Ice Sheet – Melting at the Base Explained by the History of Iceland Hotspot
  68. Greenland Ice Sheet – Palaeofluvial Mega-canyon Beneath the Central Section
  69. Greenland Ice Sheet – Velocity Structure Changes
  70. Greenland Interstadials and the Younger Dryas-Preboreal Transition: Early-Warning Signals for the Onsets  
  71. Greenland’s Marine Terminating Glaciers – Changes to Understanding the Dynamic Response to Oceanic and Atmospheric Forcing
  72. Greenland Meltwater Emerging Impact on the Formation of Deepwater in the North Atlantic
  73. West Greenland – Undercutting of Marine-Terminating Glaciers
  74. Greenland - Oceanic Transport of Surface Mmeltwater from Ssouthern Greenland Ice Sheet
  75. Southwest Labrador Sea off Newfoundland, Oceanographic changes in the Holocene
  76. Jakobshavn Isbrae – Acceleration Triggered by Warm Subsurface Ocean Waters
  77. Marinoan Snowball Earth Glaciation – Ice Sheet Fluctuations that were Orbitally Forced
  78. Methane Emissions Proportional to Carbon from Permafrost Thawed in Arctic Lakes Since the 1950s
  79. Oceanic Convection Chimneys
  80. Oceanic Ice Shelf Melting – the Effect of Basal Channels
  81. Patagonian Icefields, South America, Ice Motion 1984-2014
  82. Permafrost carbon - Catalyst for deglaciation
  83. Pine Island Bay, West Antarctica – Export and Circulation of Cavity Water
  84. Pine Island Glacier Ice Shelf Melt Distributed at Kilometre Scale
  85. Polar Wander Linked to Climate Change
  86. Possible Global Ice Volume Changes and Geomagnetic Excursions and Earth Orbital Eccentricity
  87. A Rossby Wave Bridge Connecting West Antarctica to the Tropical Atlantic Ocean
  88. Rossby Waves Mediate Impacts on West Antarctic Atmospheric Circulation of Tropical Oceans
  89. Southern Ocean Overturn Upper Branch – Water-Mass transformation by Sea Ice
  90. The Southern Ocean has been slowing Global Warming by Absorbing Carbon, But that Could Change
  91. Terrestrial Permafrost – the Threat from Thawing
  92. Tidewater Glaciers – Scalings for Submarine Melting from Buoyant Plume Theory
  93. Totten Ice Shelf – Rapid Basal Melt Driven by Ocean Heat
  94. Totten Glacier, East Antarctica - Ocean Access to a Cavity Beneath it
  95. Totten Glacier – Inland Bed Erosion Indicates Repeated Retreat on a Large Scale
  96. Totten Ice Shelf Melt and Acceleration caused by Wind
  97. West Antarctic Ice Sheet – Microbial Oxidation as Methane Sink Beneath WAIS
  98. Western Tethys – Glacial Dropstones during the Late Aptian-Early Albian Cold Snap – Palaeoclimate and Palaeogeographic Implications for the Mid-Cretaceous

Sources & Further reading

  1. Marshall, Shawn J., 2012,, The Cryospheree, Princeton University Press..
Author: M. H. Monroe
Email:  admin@austhrutime.com
Last updated: 
07/11/2017
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                                                                                           Author: M.H.Monroe  Email: admin@austhrutime.com     Sources & Further reading