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GEWEX Modeling and Prediction Activities

Two GEWEX Panels, GLASS and GASS oversee GEWEX modeling and prediction activities, which include development and improvement of boundary layer, cloud and land-surface parameterization schemes to ensure their successful integration into global circulation models.

The co-chairs of the GLASS and GASS Panels are members of the Working Group on Numerical Experimentation (WGNE), which is jointly sponsored by the World Climate Research Programme and the World Meteorological Organization Commission for Atmospheric Sciences. WGNE leads the development of atmospheric models for both climate studies and numerical weather prediction.



GLASS
Global Land/Atmosphere System Study (GLASS) Panel


GLASS supports the improvement of estimates and representation of land-surface states and fluxes in models, the interaction with the overlying atmosphere, and maximizing the fraction of inherent predictability. The present structure is centered around three themes: Model Data Fusion, Benchmarking, and Land-Atmosphere Coupling.

Contacts: Martin Best and Joseph Santanello

GLASS Website

 

Acceleration of Land Surface Model Development Over a Decade of GLASS
DOI:10.1175/BAMS-D-11-00007.1

GLASS Projects

Description



GLACE-2 - Global Land-Atmosphere Coupling Experiment


Contact: Randal Koster

Website


The second phase of GLACE is aimed at quantifying, across a broad range of state-of-the-art forecast models, the subseasonal forecast skill associated with the initialization of land surface state variables. The design is based upon the successful pilot experiment (GLACE-1) and is built around a comprehensive suite of 60-day forecasts that are evaluated against observed precipitation and air temperature fields.

 

LoCoLoCo - Local coupled land-atmospheric Modelling

Contact: Joseph Santanello

Website


Understand, model and predict the role of local land-atmosphere coupling in the evolution of land-atmosphere fluxes and state variables, including clouds.

LUCID - Land-Use and Climate, Identification of robust impacts

Contact: Andrew Pitman

Website


Joint GEWEX/GLASS and IGBP/iLEAPS Project to identify and quantify the impacts of land-used induced land-cover changes on the evolution of climate between the pre-industrial epoch and present-day.


PILPS - Project for the Intercomparison of Land-surface Parameterization Schemes



Contact: Andrew Pitman

Website

Contribute to improved understanding of continental surface and near-surface processes through international intercomparison of current state-of-the-art parameterization schemes employed in coupled climate, atmospheric and earth system models.


ALMA - Assistance for Land-surface Modelling Activities

Contact: Jan Polcher

Website

Provide a data exchange format that is general and flexible enough to evolve with the needs of land-surface schemes.

GSWP-2GSWP-2 - Global Soil Wetness Project

Website

This project concluded in 2006

GSWP-2 was an environmental modelling research activity.