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Showing 23751 to 23800 of 59105 works
Review of the global models used within phase 1 of the Chemistry–Climate Model Initiative (CCMI)
Abstract. We present an overview of state-of-the-art chemistry–climate and chemistry transport models that are used within phase 1 of the Chemistry–Climate Model Initiative (CCMI-…
Partitioning soil organic carbon into its centennially stable and active fractions with machine-learning models based o…
Abstract. Partitioning soil organic carbon (SOC) into two kinetically different fractions that are stable or active on a century scale is key for an improved monitoring of soil he…
The Met Office operational wave forecasting system: the evolution of the regional and global models
Abstract. The Met Office operational wave forecasting modelling system runs four times a day to provide global and regional forecasts up to 7 d ahead. The underpinning model uses …
Simulating the mid-Pliocene Warm Period with the CCSM4 model
Abstract. This paper describes the experimental design and model results from a 500 yr fully coupled Community Climate System, version 4, simulation of the mid-Pliocene Warm Perio…
Automating the solution of PDEs on the sphere and other manifolds in FEniCS 1.2
Abstract. Differential equations posed over immersed manifolds are of particular importance in studying geophysical flows; for instance, ocean and atmosphere simulations crucially…
A framework for ensemble modelling of climate change impacts on lakes worldwide: the ISIMIP Lake Sector
Abstract. Empirical evidence demonstrates that lakes and reservoirs are warming across the globe. Consequently, there is an increased need to project future changes in lake therma…
Wastewater matters: incorporating wastewater treatment and reuse into a process-based hydrological model (CWatM v1.08)
Abstract. Wastewater treatment and reuse are becoming increasingly critical for enhancing water use efficiency and ensuring reliable water availability. Wastewater also significan…
Evaluating the performance of SURFEXv5 as a new land surface scheme for the ALADINcy36 and ALARO-0 models
Abstract. The newly developed land surface scheme SURFEX (SURFace EXternalisée) is implemented into a limited-area numerical weather prediction model running operationally in a nu…
An iterative process for efficient optimisation of parameters in geoscientific models: a demonstration using the Parall…
Abstract. Physical processes within geoscientific models are sometimes described by simplified schemes known as parameterisations. The values of the parameters within these scheme…
Getting the leaves right matters for estimating temperature extremes
Abstract. Atmospheric reanalyses combine observations and models through data assimilation techniques to provide spatio-temporally continuous fields of key surface variables. They…
Massively parallel modeling and inversion of electrical resistivity tomography data using PFLOTRAN
Abstract. Electrical resistivity tomography (ERT) is a broadly accepted geophysical method for subsurface investigations. Interpretation of field ERT data usually requires the app…
Improving snow albedo modeling in the E3SM land model (version 2.0) and assessing its impacts on snow and surface fluxe…
Abstract. With the highest albedo of the land surface, snow plays a vital role in Earth's surface energy budget and water cycle. Snow albedo is primarily controlled by snow grain …
Land surface model parameter optimisation using in situ flux data: comparison of gradient-based versus random search al…
Abstract. Land surface models (LSMs), which form the land component of earth system models, rely on numerous processes for describing carbon, water and energy budgets, often assoc…
Rapid Adaptive Optimization Model for Atmospheric Chemistry (ROMAC) v1.0
Abstract. The Rapid Adaptive Optimization Model for Atmospheric Chemistry (ROMAC) is a flexible and computationally efficient photochemical box model. Its unique adaptive dynamic …
An objective identification technique for potential vorticity structures associated with African easterly waves
Abstract. Tropical Africa and the North Atlantic Ocean are significantly influenced by African easterly waves (AEWs), which play a fundamental role in tropical rainfall and cyclog…
Radiation sensitivity tests of the HARMONIE 37h1 NWP model
Abstract. When short-wave (SW) radiation fluxes modelled with a numerical weather prediction (NWP) model or climate model do not match observed SW fluxes it can be challenging to …
Implementation of aerosol assimilation in Gridpoint Statistical Interpolation (v. 3.2) and WRF-Chem (v. 3.4.1)
Abstract. Gridpoint Statistical Interpolation (GSI) is an assimilation tool that is used at the National Centers for Environmental Prediction (NCEP) in operational weather forecas…
Isoprene and monoterpene simulations using the chemistry–climate model EMAC (v2.55) with interactive vegetation from LP…
Abstract. Earth system models (ESMs) integrate previously separate models of the ocean, atmosphere and vegetation into one comprehensive modelling system enabling the investigatio…
A machine learning methodology for the generation of a parameterization of the hydroxyl radical
Abstract. We present a methodology that uses gradient-boosted regression trees (a machine learning technique) and a full-chemistry simulation (i.e., training dataset) from a chemi…
Recommended coupling to global meteorological fields for long-term tracer simulations with WRF-GHG
Abstract. Atmospheric transport models are often used to simulate the distribution of greenhouse gases (GHGs). This can be in the context of forward modeling of tracer transport u…
INFERNO-peat v1.0.0: a representation of northern high-latitude peat fires in the JULES-INFERNO global fire model
Abstract. Peat fires in the northern high latitudes have the potential to burn vast amounts of carbon-rich organic soil, releasing large quantities of long-term stored carbon to t…
Implementing deep soil and dynamic root uptake in Noah-MP (v4.5): impact on Amazon dry-season transpiration
Abstract. Plant roots act as critical pathways of moisture from the subsurface to the atmosphere. Deep moisture uptake by plant roots can provide a seasonal buffer mechanism in re…
A simplified treatment of surfactant effects on cloud drop activation
Abstract. Dissolved surface active species, or surfactants, have a tendency to partition to solution surface and thereby decrease solution surface tension. Activating cloud drople…
OpenFOAM-avalanche 2312: depth-integrated models beyond dense-flow avalanches
Abstract. Numerical simulations have become an important tool for the estimation and mitigation of gravitational mass flows, such as avalanches, landslides, pyroclastic flows, and…
Stratospheric aerosol evolution after Pinatubo simulated with a coupled size-resolved aerosol–chemistry–climate model, …
Abstract. We evaluate how the coupled aerosol–chemistry–climate model SOCOL-AERv1.0 represents the influence of the 1991 eruption of Mt. Pinatubo on stratospheric aerosol properti…
Improved simulation of precipitation in the tropics using a modified BMJ scheme in the WRF model
Abstract. The successful modelling of the observed precipitation, a very important variable for a wide range of climate applications, continues to be one of the major challenges t…
QUAGMIRE v1.3: a quasi-geostrophic model for investigating rotating fluids experiments
Abstract. QUAGMIRE is a quasi-geostrophic numerical model for performing fast, high-resolution simulations of multi-layer rotating annulus laboratory experiments on a desktop pers…
The Atlantic ocean's decadal variability in mid-Holocene simulations using Shannon's entropy
Abstract. Quantifying climate variability in a way that is comparable across models, experiments, and observations remains challenging, particularly at decadal time scales where n…
A fast and physically grounded ocean model for GCMs: the Dynamical Slab Ocean Model of the Generic-PCM (rev. 3423)
Abstract. We present an improved dynamical slab ocean model implemented in a 3-D General Circulation Model (GCM) called the Generic Planetary Climate Model (Generic-PCM; formerly …
The VOLNA-OP2 tsunami code (version 1.5)
Abstract. In this paper, we present the VOLNA-OP2 tsunami model and implementation; a finite-volume non-linear shallow-water equation (NSWE) solver built on the OP2 domain-specifi…
Downscaling atmospheric chemistry simulations with physically consistent deep learning
Abstract. Recent advances in deep convolutional neural network (CNN)-based super resolution can be used to downscale atmospheric chemistry simulations with substantially higher ac…
The PMIP4 contribution to CMIP6 – Part 4: Scientific objectives and experimental design of the PMIP4-CMIP6 Last Glacial…
Abstract. The Last Glacial Maximum (LGM, 21 000 years ago) is one of the suite of paleoclimate simulations included in the current phase of the Coupled Model Intercomparison Proje…
The Interactive Stratospheric Aerosol Model Intercomparison Project (ISA-MIP): motivation and experimental design
Abstract. The Stratospheric Sulfur and its Role in Climate (SSiRC) Interactive Stratospheric Aerosol Model Intercomparison Project (ISA-MIP) explores uncertainties in the processe…
Source apportionment of atmospheric water over East Asia – a source tracer study in CAM5.1
Abstract. The atmospheric water tracer (AWT) method is implemented in the Community Atmosphere Model version 5.1 (CAM5.1) to quantitatively identify the contributions of various s…
The PFLOTRAN Reaction Sandbox
Abstract. As modern reactive transport simulators evolve to accommodate the demands of a user community, researchers need a platform for prototyping new biogeochemical processes, …
A coupled pelagic–benthic–sympagic biogeochemical model for the Bering Sea: documentation and validation of the BESTNPZ…
Abstract. The Bering Sea is a highly productive ecosystem, supporting a variety of fish, seabird, and marine mammal populations, as well as large commercial fisheries. Due to its …
Incorporation of aerosol into the COSPv2 satellite lidar simulator for climate model evaluation
Abstract. Atmospheric aerosol has substantial impacts on climate, air quality and biogeochemical cycles, and its concentrations are highly variable in space and time. A key variab…
ZEMBA v1.0: an energy and moisture balance climate model to investigate Quaternary climate
Abstract. The Zonally Averaged Energy and Moisture BAlance (ZEMBA) climate model is introduced as a simple and computationally efficient tool for studies of the glacial–interglaci…
Development of an ecophysiology module in the GEOS-Chem chemical transport model version 12.2.0 to represent biosphere–…
Abstract. Ground-level ozone (O3) is a major air pollutant that adversely affects human health and ecosystem productivity. Removal of tropospheric O3 by plant stomatal uptake can …
A distributed simple dynamical systems approach (dS2 v1.0) for computationally efficient hydrological modelling at high…
Abstract. In this paper, we introduce a new numerically robust distributed rainfall–runoff model for computationally efficient simulation at high spatio-temporal resolution: the d…
Evaluating the effect of alternative carbon allocation schemes in a land surface model (CLM4.5) on carbon fluxes, pools…
Abstract. How carbon (C) is allocated to different plant tissues (leaves, stem, and roots) determines how long C remains in plant biomass and thus remains a central challenge for …
Checkerboard patterns in E3SMv2 and E3SM-MMFv2
Abstract. An unphysical checkerboard pattern is identified in E3SMv2 and E3SM-MMF that is detectable across a wide range of timescales, from instantaneous snapshots to multi-year …
Exploring the potential of history matching for land surface model calibration
Abstract. With the growing complexity of land surface models used to represent the terrestrial part of wider Earth system models, the need for sophisticated and robust parameter o…
Development and evaluation of a new 4DEnVar-based weakly coupled ocean data assimilation system in E3SMv2
Abstract. The development, implementation, and evaluation of a new weakly coupled ocean data assimilation (WCODA) system for the fully coupled Energy Exascale Earth System Model v…
CobWeb 1.0: machine learning toolbox for tomographic imaging
Abstract. Despite the availability of both commercial and open-source software, an ideal tool for digital rock physics analysis for accurate automatic image analysis at ambient co…
Modelling biomass burning emissions and the effect of spatial resolution: a case study for Africa based on the Global F…
Abstract. Large-scale fire emission estimates may be influenced by the spatial resolution of the model and input datasets used. Especially in areas with relatively heterogeneous l…
NeuralMie (v1.0): an aerosol optics emulator
Abstract. The direct interactions of atmospheric aerosols with radiation significantly impact the Earth's climate and weather and are important to represent accurately in simulati…
Accelerated photosynthesis routine in LPJmL4
Abstract. The increasing impacts of climate change require strategies for climate adaptation. Dynamic global vegetation models (DGVMs) are one type of multi-sectorial impact model…
A global, spherical finite-element model for post-seismic deformation using <i>Abaqus</i>
Abstract. We present a finite-element model of post-seismic solid Earth deformation built in the software package Abaqus (version 2018). The model is global and spherical, include…
Application of a computationally efficient method to approximate gap model results with a probabilistic approach
Abstract. To be able to simulate climate change effects on forest dynamics over the whole of Switzerland, we adapted the second-generation DGVM (dynamic global vegetation model) L…
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