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Related Experiment Video

Updated: Jul 7, 2026

Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface
13:27

Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface

Published on: June 8, 2015

The hydrologic cycle in deep-time climate problems.

Raymond T Pierrehumbert1

  • 1Department of Geophysical Sciences, The University of Chicago, Illinois, 60637, USA. rtp1@geosci.uchicago.edu

Nature
|September 13, 2002
PubMed
Summary

Hydrology examines water's global journey and its profound impact on climate and Earth's surface. This includes water cycling through various states and influencing atmospheric carbon dioxide levels.

Area of Science:

  • Earth and Environmental Sciences
  • Atmospheric Science
  • Geochemistry

Background:

  • Hydrology encompasses the multifaceted interactions of water with climate and land surfaces.
  • Water's journey between ocean and atmosphere involves cycling through vapor, cloud, snow, and ice forms.
  • Water acts as a catalyst in silicate-carbonate weathering, regulating atmospheric carbon dioxide.

Purpose of the Study:

  • To elucidate the comprehensive role of hydrology in Earth's climate system.
  • To detail the various pathways and transformations of water in its global cycle.
  • To highlight the interconnectedness of the hydrologic cycle, carbon cycle, and climate regulation.

Main Methods:

  • Review of established hydrological processes.
  • Analysis of water's phase transitions (vapor, liquid, solid).

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  • Examination of geochemical weathering reactions influenced by water.

    • Main Results:

    • Water significantly influences climate and land surface processes through its continuous journey.
    • The hydrologic cycle involves transformations through vapor, cloud, snow, sea ice, and glacier ice.
    • Water-driven weathering reactions play a crucial role in controlling atmospheric carbon dioxide levels.

    Conclusions:

    • Climate is a dynamic interplay between carbon dioxide and water, with surface ice as a key factor.
    • Understanding the hydrologic cycle is fundamental to comprehending climate dynamics and Earth system science.
    • The regulation of atmospheric carbon dioxide is intrinsically linked to hydrological processes and weathering.