8 Water Cycle in the Atmosphere and Shallow Subsurface

  • Tetsuya Tokano
Part II. Water Reservoirs on Present Mars
Part of the Advances in Astrobiology and Biogeophysics book series (ASTROBIO, volume 4)


The global water cycle on Earth constitutes one of the most relevant components of the terrestrial ecosystem. While the vast majority of terrestrial water is stored in the world oceans, the perpetual cycle of water between ocean, atmosphere and land in all three phases is recognised as one basic feature that characterises the Earth, and is contrasted to the rest of the Solar System. On the other hand, Mars is devoid of a liquid hydrological cycle in the atmosphere and on the surface in the form of rainfall, rivers or oceans, which favour life on Earth’s surface. However, a subtle water cycle does exist on present Mars and elucidating the details of the water cycle is crucial in understanding the global water inventory.


Atmospheric Water Hadley Circulation Shallow Subsurface Martian Atmosphere Vapour Amount 
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Authors and Affiliations

  • Tetsuya Tokano
    • 1
  1. 1.Institut für Geophysik und Meteorologie, Universität zu Köln, Albertus-Magnus-Platz, 50923 KölnGermany

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