Welcome to the PILPS homepage. PILPS is part of the Global Land Atmosphere System Study (GLASS) which aims to foster an evaluation of the next generation of land-surface schemes and to coordinate the evaluation of land-surface schemes in their different applications. GLASS is a GEWEX project which serves as an interface between the land-surface community and other WCRP projects. We are also affiliated with IGBP, particularly ILEAPS.
Within GLASS, PILPS (the Intercomparison of Land-surface Parameterization Schemes) operates off-line intercomparisons of land-surface schemes (LSSs). The goal of PILPS is to contribute 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.
Since the early 1990s PILPS has evaluated the parameterization of energy and water fluxes to/from the land-atmosphere interface (e.g. Pitman et al., 1999). More recently carbon fluxes and isotopes have been included in this land-surface MIP (Vivoy, 2002).