A large-scale simulation model to assess karstic groundwater recharge over Europe and the Mediterranean Geoscientific Model Development DOI 10.5194/gmd-8-1729-2015 11 June 2015 We present a new approach to assess karstic groundwater recharge over Europe and the Mediterranean. Cluster analysis is used to subdivide all karst regions into four typical karst landscapes and to simulate karst recharge with a process-based karst model. We estimate its parameters by a combination of a priori information and observations of soil moisture and evapotranspiration. Independent observations of recharge that present large-scale models significantly under-estimate karstic recharge. Read more
Improved routines to model the ocean carbonate system: mocsy 2.0 Geoscientific Model Development DOI 10.5194/gmd-8-485-2015 9 March 2015 We provide improved routines to model the ocean carbonate system, i.e., to compute ocean pH and related variables from dissolved inorganic carbon and total alkalinity. These routines (1) rely on the fastest available algorithm to solve the alkalinity-pH equation, which converges even under extreme conditions; (2) avoid common model approximations that lead to errors of 3% or more in computed variables; and (3) account for large pressure effects on subsurface pCO2, unlike other packages. Read more
Short ensembles: an efficient method for discerning climate-relevant sensitivities in atmospheric general circulation models Geoscientific Model Development DOI 10.5194/gmd-7-1961-2014 8 September 2014 This paper explores the feasibility of an experimentation strategy for investigating sensitivities in fast components of atmospheric general circulation models. Read more
MOMBA 1.1 – a high-resolution Baltic Sea configuration of GFDL’s Modular Ocean Model Geoscientific Model Development DOI 10.5194/gmd-7-1713-2014 18 August 2014 We present a new coupled ocean-circulation–ice model configuration of the Baltic Sea. The model features, contrary to most existing configurations, a high horizontal resolution of 1 nautical mile (1.85 km), which is eddy-resolving over much of the domain. Read more
Editorial: The publication of geoscientific model developments v1.0 Geoscientific Model Development DOI 10.5194/gmd-6-1233-2013 14 August 2013 In this editorial, GMD Executive Editors assess the lessons learned over the first few years of the journal’s life, and describe some changes to GMD’s editorial policy, which will ensure that the models and model developments are published in such a way that they are of maximum value to the community. Read more
Assessing climate model software quality: a defect density analysis of three models Geoscientific Model Development DOI 10.5194/gmd-5-1009-2012 9 August 2012 We found that the climate models all have very low defect densities compared to well-known, similarly sized open-source projects. We discuss the implications of our findings for the assessment of climate model software trustworthiness. Read more
