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Showing 26901 to 26950 of 59105 works
CREST-VEC: a framework towards more accurate and realistic flood simulation across scales
Abstract. Large-scale (i.e., continental and global) hydrologic simulation is an appealing yet challenging topic for the hydrologic community. First and foremost, model efficiency…
G6-1.5K-MCB: Marine Cloud Brightening scenario design for the Geoengineering Model Intercomparison Project (GeoMIP) i…
Abstract. We present a protocol for scenario simulations of marine cloud brightening (MCB) solar radiation modification (SRM), which we design for inclusion as a bridge simulation…
SynRad v1.0: a radar forward operator to simulate synthetic weather radar observations from volcanic ash clouds
Abstract. In this work, SynRad, a new radar forward operator for the Active Tracer High-Resolution Atmospheric Model (ATHAM) volcanic plume model is introduced. The operator is de…
Forecasting contrail climate forcing for flight planning and air traffic management applications: the CocipGrid model i…
Abstract. The global annual mean contrail climate forcing may exceed that of aviation's cumulative CO2 emissions. As only 2 %–3 % of all flights are likely responsible for 80 % of…
EDDA 1.0: integrated simulation of debris flow erosion, deposition and property changes
Abstract. Debris flow material properties change during the initiation, transportation and deposition processes, which influences the runout characteristics of the debris flow. A …
LISFLOOD-FP 8.1: new GPU-accelerated solvers for faster fluvial/pluvial flood simulations
Abstract. The local inertial two-dimensional (2D) flow model on LISFLOOD-FP, the so-called ACCeleration (ACC) uniform grid solver, has been widely used to support fast, computatio…
Pliocene Model Intercomparison Project (PlioMIP): experimental design and boundary conditions (Experiment 2)
Abstract. The Palaeoclimate Modelling Intercomparison Project has expanded to include a model intercomparison for the mid-Pliocene warm period (3.29 to 2.97 million yr ago). This …
Description and evaluation of GLOMAP-mode: a modal global aerosol microphysics model for the UKCA composition-climate m…
Abstract. A new version of the Global Model of Aerosol Processes (GLOMAP) is described, which uses a two-moment pseudo-modal aerosol dynamics approach rather than the original two…
ICON-Sapphire: simulating the components of the Earth system and their interactions at kilometer and subkilometer scales
Abstract. State-of-the-art Earth system models typically employ grid spacings of O(100 km), which is too coarse to explicitly resolve main drivers of the flow of energy and matter…
The ocean model for E3SM global applications: Omega version 0.1.0 – a new high-performance computing code for exascale …
Abstract. This paper introduces Omega, the Ocean Model for E3SM Global Applications. Omega is a new ocean model designed to run efficiently on high performance computing (HPC) pla…
The Finite-volumE Sea ice–Ocean Model (FESOM2)
Abstract. Version 2 of the unstructured-mesh Finite-Element Sea ice–Ocean circulation Model (FESOM) is presented. It builds upon FESOM1.4 (Wang et al., 2014) but differs by its dy…
A novel ALE scheme with the internal boundary for true free surface simulation in geodynamic models
Abstract. The accurate simulation of Earth's surface is essential for understanding lithospheric and mantle dynamics, especially in processes such as subduction and surface deform…
A three-dimensional variational data assimilation system for aerosol optical properties based on WRF-Chem v4.0: design,…
Abstract. This paper presents a three-dimensional variational (3DVAR) data assimilation (DA) system for aerosol optical properties, including aerosol optical thickness (AOT) retri…
HIDRA2: deep-learning ensemble sea level and storm tide forecasting in the presence of seiches – the case of the northe…
Abstract. We propose a new deep-learning architecture HIDRA2 for sea level and storm tide modeling, which is extremely fast to train and apply and outperforms both our previous ne…
SCIATRAN software package (V4.6): update and further development of aerosol, clouds, surface reflectance databases and …
Abstract. Since the initiation of development at the Institute of Environmental Physics (IUP), University of Bremen, in 1994, the radiative transfer model SCIATRAN (formerly GOMET…
Approximating the universal thermal climate index using sparse regression with orthogonal polynomials
Abstract. The Universal Thermal Climate Index (UTCI) is a measure of thermal comfort that quantifies how humans experience environmental conditions. Due to its robustness and vers…
Parameter interactions and sensitivity analysis for modelling carbon heat and water fluxes in a natural peatland, using…
Abstract. In contrast to previous peatland carbon dioxide (CO2) model sensitivity analyses, which usually focussed on only one or a few processes, this study investigates interact…
Simulating the mid-Holocene, last interglacial and mid-Pliocene climate with EC-Earth3-LR
Abstract. As global warming is proceeding due to rising greenhouse gas concentrations, the Earth system moves towards climate states that challenge adaptation. Past Earth system s…
TOAST 1.0: Tropospheric Ozone Attribution of Sources with Tagging for CESM 1.2.2
Abstract. A system for source attribution of tropospheric ozone produced from both NOx and volatile organic compound (VOC) precursors is described, along with its implementation i…
A case study of wind farm effects using two wake parameterizations in the Weather Research and Forecasting (WRF) model …
Abstract. While the wind farm parameterization by Fitch et al. (2012) in the Weather Research and Forecasting (WRF) model has been used and evaluated frequently, the explicit wake…
Ocean biogeochemistry in the coupled ocean–sea ice–biogeochemistry model FESOM2.1–REcoM3
Abstract. The cycling of carbon in the oceans is affected by feedbacks driven by changes in climate and atmospheric CO2. Understanding these feedbacks is therefore an important pr…
The need for carbon-emissions-driven climate projections in CMIP7
Abstract. Previous phases of the Coupled Model Intercomparison Project (CMIP) have primarily focused on simulations driven by atmospheric concentrations of greenhouse gases (GHGs)…
A global wetland methane emissions and uncertainty dataset for atmospheric chemical transport models (WetCHARTs version…
Abstract. Wetland emissions remain one of the principal sources of uncertainty in the global atmospheric methane (CH4) budget, largely due to poorly constrained process controls o…
Implementation of a new crop phenology and irrigation scheme in the ISBA land surface model using SURFEX_v8.1
Abstract. With an increase in the number of natural processes represented, global land surface models (LSMs) have become more and more accurate in representing natural terrestrial…
Competition between plant functional types in the Canadian Terrestrial Ecosystem Model (CTEM) v. 2.0
Abstract. The Canadian Terrestrial Ecosystem Model (CTEM) is the interactive vegetation component in the Earth system model of the Canadian Centre for Climate Modelling and Analys…
Novel coupled permafrost–forest model (LAVESI–CryoGrid v1.0) revealing the interplay between permafrost, vegetation, an…
Abstract. Boreal forests of Siberia play a relevant role in the global carbon cycle. However, global warming threatens the existence of summergreen larch-dominated ecosystems, lik…
Development of a large-eddy simulation subgrid model based on artificial neural networks: a case study of turbulent cha…
Abstract. Atmospheric boundary layers and other wall-bounded flows are often simulated with the large-eddy simulation (LES) technique, which relies on subgrid-scale (SGS) models t…
The Finite Element Sea Ice-Ocean Model (FESOM) v.1.4: formulation of an ocean general circulation model
Abstract. The Finite Element Sea Ice-Ocean Model (FESOM) is the first global ocean general circulation model based on unstructured-mesh methods that has been developed for the pur…
WCRP COordinated Regional Downscaling EXperiment (CORDEX): a diagnostic MIP for CMIP6
Abstract. The COordinated Regional Downscaling EXperiment (CORDEX) is a diagnostic model intercomparison project (MIP) in CMIP6. CORDEX builds on a foundation of previous downscal…
A multi-pollutant and multi-sectorial approach to screening the consistency of emission inventories
Abstract. Some studies show that significant uncertainties affect emission inventories, which may impeach conclusions based on air-quality model results. These uncertainties resul…
Sensitivity of surface solar radiation to aerosol–radiation and aerosol–cloud interactions over Europe in WRFv3.6.1 cli…
Abstract. The amount of solar radiation reaching the Earth's surface can be highly determined by atmospheric aerosols, which have been pointed to as the most uncertain climate for…
Assimilation of snow water equivalent from AMSR2 and IMS satellite data utilizing the local ensemble transform Kalman f…
Abstract. Snow water equivalent (SWE), as one of the land initial or boundary conditions, plays a crucial role in global or regional energy and water balance, thereby exerting a c…
A new gas absorption optical depth parameterisation for RTTOV version 13
Abstract. This paper describes a new gas optical depth parameterisation implemented in the most recent release, version 13, of the radiative transfer model RTTOV (Radiative Transf…
Spatially varying parameters improve carbon cycle modeling in the Amazon rainforest with ORCHIDEE r8849
Abstract. Uncertainty in the dynamics of the Amazon rainforest poses a critical challenge for accurately modeling the global carbon cycle. Current dynamic global vegetation models…
Normal-mode function representation of global 3-D data sets: open-access software for the atmospheric research community
Abstract. This article presents new software for the analysis of global dynamical fields in (re)analyses, weather forecasts and climate models. A new diagnostic tool, developed wi…
Quantitative evaluation of ozone and selected climate parameters in a set of EMAC simulations
Abstract. Four simulations with the ECHAM/MESSy Atmospheric Chemistry (EMAC) model have been evaluated with the Earth System Model Validation Tool (ESMValTool) to identify differe…
SITool (v1.0) – a new evaluation tool for large-scale sea ice simulations: application to CMIP6 OMIP
Abstract. The Sea Ice Evaluation Tool (SITool) described in this paper is a performance metrics and diagnostics tool developed to evaluate the skill of Arctic and Antarctic model …
CARIB12: a regional Community Earth System Model/Modular Ocean Model 6 configuration of the Caribbean Sea
Abstract. A new Community Earth System Model/Modular Ocean Model 6 (CESM/MOM6) ocean-only regional 1/12° configuration of the Caribbean Sea is presented and validated. The model c…
Numerical stabilization methods for level-set-based ice front migration
Abstract. Numerical modeling of ice sheet dynamics is a critical tool for projecting future sea level rise. Among all the processes responsible for the loss of mass of the ice she…
Calibrating the soil organic carbon model Yasso20 with multiple datasets
Abstract. Soil organic carbon (SOC) models are important tools for assessing global SOC distributions and how carbon stocks are affected by climate change. Their performances, how…
A two-way coupled regional urban–street network air quality model system for Beijing, China
Abstract. Owing to the substantial traffic emissions in urban areas, especially near road areas, the concentrations of pollutants, such as ozone (O3) and its precursors, have a la…
Soil Methanotrophy Model (MeMo v1.0): a process-based model to quantify global uptake of atmospheric methane by soil
Abstract. Soil bacteria known as methanotrophs are the sole biological sink for atmospheric methane (CH4), a potent greenhouse gas that is responsible for ∼ 20 % of the human-driv…
Challenges of high-fidelity air quality modeling in urban environments – PALM sensitivity study during stable conditions
Abstract. Urban air quality is an important part of human well-being, and its detailed and precise modeling is important for efficient urban planning. In this study the potential …
Challenges of constructing and selecting the “perfect” boundary conditions for the large-eddy simulation model PALM
Abstract. We present the process of and difficulties in acquiring the proper boundary conditions (BCs) for the state-of-the-art large-eddy simulation (LES)-based PALM model system…
The SMHI Large Ensemble (SMHI-LENS) with EC-Earth3.3.1
Abstract. The Swedish Meteorological and Hydrological Institute used the global climate model EC-Earth3 to perform a large ensemble of simulations (SMHI-LENS). It consists of 50 m…
An optimization for reducing the size of an existing urban-like monitoring network for retrieving an unknown point sour…
Abstract. This study presents an optimization methodology for reducing the size of an existing monitoring network of the sensors measuring polluting substances in an urban-like en…
GEOCLIM7, an Earth system model for multi-million-year evolution of the geochemical cycles and climate
Abstract. The numerical model GEOCLIM, a coupled Earth system model for the long-term biogeochemical cycle and climate, has been revised. This new version (v 7.0) allows a flexibl…
Impacts of spatial heterogeneity of anthropogenic aerosol emissions in a regionally refined global aerosol–climate model
Abstract. Emissions of anthropogenic aerosol and their precursors are often prescribed in global aerosol models. Most of these emissions are spatially heterogeneous at model grid …
Modelling the role of livestock grazing in C and N cycling in grasslands with LPJmL5.0-grazing
Abstract. To represent the impact of grazing livestock on carbon (C) and nitrogen (N) dynamics in grasslands, we implement a livestock module into LPJmL5.0-tillage, a global veget…
A 4D-Var inversion system based on the icosahedral grid model (NICAM-TM 4D-Var v1.0) – Part 2: Optimization scheme and …
Abstract. A four-dimensional variational method (4D-Var) is a popular technique for source/sink inversions of atmospheric constituents, but it is not without problems. Using an ic…
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