Concept information
Preferred term
GEWEX
Definition
- The Global Energy and Water Cycle Experiment (GEWEX) is a program initiated by the World Climate Research Programme (WCRP) to observe, understand and model the hydrological cycle and energy fluxes in the atmosphere, at land surface and in the upper oceans. GEWEX is an integrated program of research, observations, and science activities ultimately leading to the prediction of global and regional climate change. The International GEWEX Project Office (IGPO) is the focal point for the planning and implementation of all GEWEX Projects and activities. The goal of the GEWEX Program is to reproduce and predict, by means of suitable models, the variations of the global hydrological regime, its impact on atmospheric and surface dynamics, and variations in regional hydrological processes and water resources and their response to changes in the environment, such as the increase in greenhouse gases. GEWEX will provide an order of magnitude improvement in the ability to model global precipitation and evaporation as well as accurate assessment of the sensitivity of atmospheric radiation and clouds to climate change. Objectives of the GEWEX Program: 1. Determine the hydrological cycle and energy fluxes by means of global measurements of atmospheric and surface properties. 2. Model the global hydrological cycle and its impact on the atmosphere, oceans and land surfaces. 3. Develop the ability to predict the variations of global and regional hydrological processes and water resources, and their response to environmental change. 4. Advance the development of observing techniques, data management, and assimiliation systems for operational application to long-range weather forecasts, hydrology, and climate predictions. GEWEX Program Strategy: 1. Build on existing programs and data. 2. Conduct modeling programs to model all aspects of the hydrologic and energy cycles with evolving fully coupled atmosphere-land-ocean components. 3. Make recommendations to space agencies with respect to instruments planned for satellite platforms. 4. Conduct pilot studies with international participation encompassing the full range of experimental scales: small scale continental scale global scale For more information, link to "http://www.gewex.org/gewex_overview.html" (en)
Broader concept
- G - I (en)
URI
https://gcmd.earthdata.nasa.gov/kms/concept/25cffb7e-087b-49aa-ae2a-8ce62acaefaa
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