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Showing 4501 to 4550 of 7523 works
Global methane emission estimates for 2000–2012 from CarbonTracker Europe-CH <sub>4</sub> …
Abstract. We present a global distribution of surface methane (CH4) emission estimates for 2000–2012 derived using the CarbonTracker Europe-CH4 (CTE-CH4) data assimilation system.…
The real challenges for climate and weather modelling on its way to sustained exascale performance: a case study using …
Abstract. The weather and climate model ICON (ICOsahedral Nonhydrostatic) is being used in high-resolution climate simulations, in order to resolve small-scale physical processes.…
TIM: modelling pathways to meet Ireland's long-term energy system challenges with the TIMES-Ireland Model (v1.0)
Abstract. Ireland has significantly increased its climate mitigation ambition, with a recent government commitment to reduce greenhouse gases by an average of 7 % yr−1 in the peri…
Fluxes from soil moisture measurements (FluSM v1.0): a data-driven water balance framework for permeable pavements
Abstract. Water fluxes at the soil–atmosphere interface are a key piece of information for studying the terrestrial water cycle. However, measuring and modeling water fluxes in th…
A simplified permafrost-carbon model for long-term climate studies with the CLIMBER-2 coupled earth system model
Abstract. We present the development and validation of a simplified permafrost-carbon mechanism for use with the land surface scheme operating in the CLIMBER-2 earth system model.…
ECOSMO II(CHL): a marine biogeochemical model for the North Atlantic and the Arctic
Abstract. ECOSMO II is a fully coupled bio-physical model of 3D hydrodynamics with an intermediate-complexity NPZD (nutrient, phytoplankton, zooplankton, detritus) type biology in…
A comparative assessment of the uncertainties of global surface ocean CO <sub>2</sub> …
Abstract. Over the last decade, advanced statistical inference and machine learning have been used to fill the gaps in sparse surface ocean CO2 measurements (Rödenbeck et al., 201…
Impact of model improvements on 80 m wind speeds during the second Wind Forecast Improvement Project (WFIP2)
Abstract. During the second Wind Forecast Improvement Project (WFIP2; October 2015–March 2017, held in the Columbia River Gorge and Basin area of eastern Washington and Oregon sta…
DSCALE v0.1 – an open-source algorithm for downscaling regional and global mitigation pathways to the country level
Abstract. Integrated Assessment Models (IAMs) provide low-carbon scenarios at a global scale or for broad economic aggregates, as running these models for every country would be c…
Representing canopy structure dynamics within the LPJ-GUESS dynamic global vegetation model (revision 13221)
Abstract. The competition, especially for light, is a fundamental determinant of the structure and composition of a forest. Large-scale forest models must balance real-world compl…
CMIP7 data request: Earth system priorities and opportunities
Abstract. This paper presents a comprehensive overview of the Coupled Model Intercomparison Project Phase 7 (CMIP7) request for data pertaining to Earth systems science, and provi…
AerChemMIP2 – unraveling the role of reactive gases, aerosol particles, and land use for air quality and climate change…
Abstract. Phase 2 of the Aerosol and Chemistry Model Intercomparison Project (AerChemMIP2) is a registered model intercomparison project (MIP) of the Coupled Model Intercomparison…
Modelling framework for asynchronous land-atmosphere coupling using NASA GISS ModelE (NASA-GISS E2.1) and LPJ-LMfire (…
Abstract. While paleoclimate simulations have been a priority for Earth system modelers over the past three decades, little attention has been paid to the period between the mid-H…
A quasi chemistry-transport model mode for EMAC
Abstract. A quasi chemistry-transport model mode (QCTM) is presented for the numerical chemistry-climate simulation system ECHAM/MESSy Atmospheric Chemistry (EMAC). It allows for …
Icosahedral Shallow Water Model (ICOSWM): results of shallow water test cases and sensitivity to model parameters
Abstract. The Icosahedral Shallow Water Model (ICOSWM) has been a first step in the development of the ICON (acronym for ICOsahedral Nonhydrostatic) models. ICON is a joint projec…
Multimodel simulations of a springtime dust storm over northeastern China: implications of an evaluation of four common…
Abstract. Mineral dust particles play an important role in the Earth system, imposing a variety of effects on air quality, climate, human health, and economy. Accurate forecasts o…
Stable climate simulations using a realistic general circulation model with neural network parameterizations for atmosp…
Abstract. In climate models, subgrid parameterizations of convection and clouds are one of the main causes of the biases in precipitation and atmospheric circulation simulations. …
Introducing LAB60: A 1∕60° NEMO 3.6 numerical simulation of the Labrador Sea
Abstract. A high-resolution coupled ocean–sea ice model is set up within the Labrador Sea. With a horizontal resolution of 1∕60∘, this simulation is capable of resolving the multi…
The software architecture of climate models: a graphical comparison of CMIP5 and EMICAR5 configurations
Abstract. We analyze the source code of eight coupled climate models, selected from those that participated in the CMIP5 (Taylor et al., 2012) or EMICAR5 (Eby et al., 2013; Zickfe…
Improved representation of the contemporary Greenland ice sheet firn layer by IMAU-FDM v1.2G
Abstract. The firn layer that covers 90 % of the Greenland ice sheet (GrIS) plays an important role in determining the response of the ice sheet to climate change. Meltwater can p…
Open boundary conditions for atmospheric large-eddy simulations and their implementation in DALES4.4
Abstract. Open boundary conditions were developed for atmospheric large-eddy simulation (LES) models and implemented into the Dutch Atmospheric Large-Eddy Simulation model. The im…
Spatiotemporal evaluation of EMEP4UK-WRF v4.3 atmospheric chemistry transport simulations of health-related metrics for…
Abstract. This study was motivated by the use in air pollution epidemiology and health burden assessment of data simulated at 5 km × 5 km horizontal resolution by the EMEP4UK-WR…
Representing winter wheat in the Community Land Model (version 4.5)
Abstract. Winter wheat is a staple crop for global food security, and is the dominant vegetation cover for a significant fraction of Earth's croplands. As such, it plays an import…
ORCHILEAK (revision 3875): a new model branch to simulate carbon transfers along the terrestrial–aquatic continuum of t…
Abstract. Lateral transfer of carbon (C) from terrestrial ecosystems into the inland water network is an important component of the global C cycle, which sustains a large aquatic …
LM4-SHARC v1.0: resolving the catchment-scale soil–hillslope aquifer–river continuum for the GFDL Earth system modeling…
Abstract. Catchment-scale representation of the groundwater and its interaction with other parts of the hydrologic cycle is crucial for accurately depicting the land water–energy …
faSavageHutterFOAM 1.0: depth-integrated simulation of dense snow avalanches on natural terrain with OpenFOAM
Abstract. Numerical models for dense snow avalanches have become central to hazard zone mapping and mitigation. Several commercial and free applications, which are used on a regul…
Slate: extending Firedrake's domain-specific abstraction to hybridized solvers for geoscience and beyond
Abstract. Within the finite element community, discontinuous Galerkin (DG) and mixed finite element methods have become increasingly popular in simulating geophysical flows. Howev…
Satellite-derived leaf area index and roughness length information for surface–atmosphere exchange modelling: a case st…
Abstract. The nitrogen cycle has been continuously disrupted by human activity over the past century, resulting in almost a tripling of the total reactive nitrogen fixation in Eur…
From weather data to river runoff: using spatiotemporal convolutional networks for discharge forecasting
Abstract. The quality of river runoff determines the quality of regional climate projections for coastal oceans or other estuaries. This study presents a novel approach to river r…
Handling discontinuities in numerical ODE methods for Lagrangian oceanography
Abstract. In Lagrangian oceanography, numerical methods for Ordinary Differential Equations (ODEs) are used to model particle transport. In many common applications, the velocity …
HOTSSea v1: a NEMO-based physical Hindcast of the Salish Sea (1980–2018) supporting ecosystem model development
Abstract. Decadal-scale oceanographic, environmental, and ecological changes have been reported in the Salish Sea, an ecologically productive inland sea in the northeast Pacific t…
An optimal transformation method for inferring ocean tracer sources and sinks
Abstract. The geography of changes in the fluxes of heat, carbon, freshwater and other tracers at the sea surface is highly uncertain and is critical to our understanding of clima…
Evaluation of the ECHAM family radiation codes performance in the representation of the solar signal
Abstract. Solar radiation is the main source of energy for the Earth's atmosphere and in many respects defines its composition, photochemistry, temperature profile and dynamics. T…
Evaluation of the global aerosol microphysical ModelE2-TOMAS model against satellite and ground-based observations
Abstract. The TwO-Moment Aerosol Sectional (TOMAS) microphysics model has been integrated into the state-of-the-art general circulation model, GISS ModelE2. This paper provides a …
Comparison of adjoint and nudging methods to initialise ice sheet model basal conditions
Abstract. Ice flow models are now routinely used to forecast the ice sheets' contribution to 21st century sea-level rise. For such short term simulations, the model response is gr…
A mimetic, semi-implicit, forward-in-time, finite volume shallow water model: comparison of hexagonal–icosahedral and c…
Abstract. A new algorithm is presented for the solution of the shallow water equations on quasi-uniform spherical grids. It combines a mimetic finite volume spatial discretization…
AdaScape 1.0: a coupled modelling tool to investigate the links between tectonics, climate, and biodiversity
Abstract. The interplay between tectonics and climate is known to impact the evolution and distribution of life forms, leading to present-day patterns of biodiversity. Numerical m…
Methane chemistry in a nutshell – the new submodels CH4 (v1.0) and TRSYNC (v1.0) in MESSy (v2.54.0)
Abstract. Climate projections including chemical feedbacks rely on state-of-the-art chemistry–climate models (CCMs). Of particular importance is the role of methane (CH4) for the …
Assessment of numerical schemes for transient, finite-element ice flow models using ISSM v4.18
Abstract. Time-dependent simulations of ice sheets require two equations to be solved: the mass transport equation, derived from the conservation of mass, and the stress balance e…
OpenArray v1.0: a simple operator library for the decoupling of ocean modeling and parallel computing
Abstract. Rapidly evolving computational techniques are making a large gap between scientific aspiration and code implementation in climate modeling. In this work, we design a sim…
Arctic Ocean simulations in the CMIP6 Ocean Model Intercomparison Project (OMIP)
Abstract. Arctic Ocean simulations in 19 global ocean–sea-ice models participating in the Ocean Model Intercomparison Project (OMIP) of the Coupled Model Intercomparison Project P…
A dynamical core based on a discontinuous Galerkin method for higher-order finite-element sea ice modeling
Abstract. The ability of numerical sea ice models to reproduce localized deformation features associated with fracture processes is key for an accurate representation of the ice d…
TPVTrack v1.0: a watershed segmentation and overlap correspondence method for tracking tropopause polar vortices
Abstract. A new free modular software package is described for tracking tropopause polar vortices (TPVs) natively on structured or unstructured grids. Motivated by limitations in …
Application of the adjoint approach to optimise the initial conditions of a turbidity current with the AdjointTurbidity…
Abstract. Turbidity currents are one of the main drivers of sediment transport from the continental shelf to the deep ocean. The resulting sediment deposits can reach hundreds of …
Benchmarking the vertically integrated ice-sheet model IMAU-ICE (version 2.0)
Abstract. Ice-dynamical processes constitute a large uncertainty in future projections of sea-level rise caused by anthropogenic climate change. Improving our understanding of the…
Simulating lightning NO production in CMAQv5.2: evolution of scientific updates
Abstract. This work describes the lightning nitric oxide (LNO) production schemes in the Community Multiscale Air Quality (CMAQ) model. We first document the existing LNO producti…
Revised mineral dust emissions in the atmospheric chemistry–climate model EMAC (MESSy 2.52 DU_Astitha1 KKDU2017 patch)
Abstract. To improve the aeolian dust budget calculations with the global ECHAM/MESSy atmospheric chemistry–climate model (EMAC), which combines the Modular Earth Submodel System …
Advances in representing interactive methane in ModelE2-YIBs (version 1.1)
Abstract. Methane (CH4) is both a greenhouse gas and a precursor of tropospheric ozone, making it an important focus of chemistry–climate interactions. Methane has both anthropoge…
Efficient and stable coupling of the SuperdropNet deep-learning-based cloud microphysics (v0.1.0) with the ICON climate…
Abstract. Machine learning (ML) algorithms can be used in Earth system models (ESMs) to emulate sub-grid-scale processes. Due to the statistical nature of ML algorithms and the hi…
ORACLE 2-D (v2.0): an efficient module to compute the volatility and oxygen content of organic aerosol with a global …
Abstract. A new module, ORACLE 2-D, simulating organic aerosol formation and evolution in the atmosphere has been developed and evaluated. The module calculates the concentrations…
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