dcsimg

Ice forms when water in the liquid state freezes. Freezing temperature depends on the content of salt dissolved in the water: at normal atmospheric pressure, it is 0° C for pure water, not greatly different for fresh water and it drops to -1.8°C in the case of sea water. When temperatures drop below freezing point, water turns into the solid state. This is true for water that flows freely on the Earth’s surface as also for stretches of water such as lakes, rivers, seas , and also for water trapped in wedges in rocks and in pores in the ground, where ice lenses and veins form. Running water, due to its movement, freezes more slowly than still water, for this reason it is easier in winter to see the formation of ice on the surface of small stretches of still water, while the waterways are not frozen.

subjects dealt with in Ice and glaciers

acqua_400x225_0012_il ghiaccio

Ice

Since most of the Earth’s ice does not come from frozen pure water, the ice we see  generally consists of…

acqua_400x225_0016_cosa sono i ghiacciai

What glaciers are

The mass of ice that forms a glacier is not a static and homogeneous mass: the ice has different characteristics…

acqua_400x225_0013_il ghiaccio racconta

Ice tales

Observations of the front variations include monitoring changes in shape and position of the front of a glacier. Once, this…

acqua_400x225_0011_le glaciazionioni

Glaciation

Glaciations, periods of cold climate in which the glaciers all over the planet are characterized by a great expansion, and…

acqua_400x225_0014_i ghiacciai una risorsa

Glaciers, a resource

Glaciers in dry temperate regions supply a source of water which is very important for the economy of local rural…

special reports

  • centenario_polol

    14 December 2011 / Water

    Centenary of the conquest of the South Pole

    The conquest of the South Pole The first centenary of a memorable feat, the conquest of the South Pole, will…

    antart_ricerca

    6 December 2010 / Water

    Research in Antarctica

    A fascinated continent Antarctica is a continent with a very particular charm. It was the last to be discovered and…

    uomo_antar

    6 December 2010 / Water

    Life in Antarctica

    Moving in Antarctica How is it possible to live and work in Antarctica? Which sagacities must be used for a…

  • iceberg

    5 February 2005 / Water

    Icebergs

    Vagabonds on the sea Last January, the media gave great importance to the news of the possible collision of a…

    oro_blu

    15 April 2014 / Water

    How rich are we .... in blue gold?

    The blue planet: water availability in the world 24 December 1968, a date of historical importance. The Earth was photographed…

    impronta_idrical

    26 February 2014 / Water

    How much water is on your plate?

    Still waters run deep! This proverb reminds us how many times we have heard popular proverbs about water, and how…

  • rinnovabiliItalia

    24 February 2016 / Energy

    Renewable energy in Italy

    Renewable energy sources in Italy The GSE, Energy Services Operator, periodically publishes data and statistics on the renewable sources used…

    rinnovabiliNepal

    1 July 2007 / Energy

    Renewable energy in Nepal

    The resources of diversity Nepal is an extremely varied country, with a complex morphology.  It contains different ecosystems in a…

    batteri_biotech

    4 March 2010 / Life

    Biotechnological cleaners

    Bacteria that "eat oil" In today’s society, more than 80% of human activities are closely connected to the production of…

  • bioindicatori

    10 May 2008 / Air

    Bioindicators

    Monitoring the environment Ecologic research is more and more oriented towards an assessment of the quality of the environment and…

    indovina

    8 July 2011 / Ecosystems

    Who's coming to dinner

    A shark in my hamburger Summer is finally here! As usual, we have waited for it all year long and…

    Close-up of small plants in test tubes

    10 March 2006 / Water

    Environment biotech

    Biotechnology can be defined as the application of microbiology, genetic engineering and biochemistry for the treatment of waste materials by…

  • centenario_polol

    14 December 2011 / Water

    Centenary of the conquest of the South Pole

    The conquest of the South Pole The first centenary of a memorable feat, the conquest of the South Pole, will…

    antart_ricerca

    6 December 2010 / Water

    Research in Antarctica

    A fascinated continent Antarctica is a continent with a very particular charm. It was the last to be discovered and…

  • uomo_antar

    6 December 2010 / Water

    Life in Antarctica

    Moving in Antarctica How is it possible to live and work in Antarctica? Which sagacities must be used for a…

    iceberg

    5 February 2005 / Water

    Icebergs

    Vagabonds on the sea Last January, the media gave great importance to the news of the possible collision of a…

  • oro_blu

    15 April 2014 / Water

    How rich are we .... in blue gold?

    The blue planet: water availability in the world 24 December 1968, a date of historical importance. The Earth was photographed…

    impronta_idrical

    26 February 2014 / Water

    How much water is on your plate?

    Still waters run deep! This proverb reminds us how many times we have heard popular proverbs about water, and how…

  • rinnovabiliItalia

    24 February 2016 / Energy

    Renewable energy in Italy

    Renewable energy sources in Italy The GSE, Energy Services Operator, periodically publishes data and statistics on the renewable sources used…

    rinnovabiliNepal

    1 July 2007 / Energy

    Renewable energy in Nepal

    The resources of diversity Nepal is an extremely varied country, with a complex morphology.  It contains different ecosystems in a…

  • batteri_biotech

    4 March 2010 / Life

    Biotechnological cleaners

    Bacteria that "eat oil" In today’s society, more than 80% of human activities are closely connected to the production of…

  • centenario_polol

    14 December 2011 / Water

    Centenary of the conquest of the South Pole

    The conquest of the South Pole The first centenary of a memorable feat, the conquest of the South Pole, will…

  • antart_ricerca

    6 December 2010 / Water

    Research in Antarctica

    A fascinated continent Antarctica is a continent with a very particular charm. It was the last to be discovered and…

  • uomo_antar

    6 December 2010 / Water

    Life in Antarctica

    Moving in Antarctica How is it possible to live and work in Antarctica? Which sagacities must be used for a…

  • iceberg

    5 February 2005 / Water

    Icebergs

    Vagabonds on the sea Last January, the media gave great importance to the news of the possible collision of a…

  • oro_blu

    15 April 2014 / Water

    How rich are we .... in blue gold?

    The blue planet: water availability in the world 24 December 1968, a date of historical importance. The Earth was photographed…

  • impronta_idrical

    26 February 2014 / Water

    How much water is on your plate?

    Still waters run deep! This proverb reminds us how many times we have heard popular proverbs about water, and how…

  • rinnovabiliItalia

    24 February 2016 / Energy

    Renewable energy in Italy

    Renewable energy sources in Italy The GSE, Energy Services Operator, periodically publishes data and statistics on the renewable sources used…

  • rinnovabiliNepal

    1 July 2007 / Energy

    Renewable energy in Nepal

    The resources of diversity Nepal is an extremely varied country, with a complex morphology.  It contains different ecosystems in a…

  • batteri_biotech

    4 March 2010 / Life

    Biotechnological cleaners

    Bacteria that "eat oil" In today’s society, more than 80% of human activities are closely connected to the production of…

from the Multimedia section

  • ghiacci_correnti

    water

    Ice and currents

    Look
    20091141110441ghiaccio_20

    water

    Captured water

    Look
  • The explorer

    water

    Ice tales

    Look
    ice_eng_grafico15ar

    water

    Careser Glacier mass balance

    Look
  • cyan icebergs

    water

    Ice shapes

    Look
    ice_eng_grafico16

    water

    Scheme of glacial cave systems

    Look

curiosities

With the sponsorship of the Italian Ministry of Education, Universities and Research
 
Eni S.p.A. - P.IVA 00905811006