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Showing 23801 to 23850 of 59105 works
Correction of approximation errors with Random Forests applied to modelling of cloud droplet formation
Abstract. In atmospheric models, due to their computational time or resource limitations, physical processes have to be simulated using reduced (i.e. simplified) models. The use o…
An analytical solution to calculate bulk mole fractions for any number of components in aerosol droplets after consider…
Abstract. Calculating the equilibrium composition of atmospheric aerosol particles, using all variations of Köhler theory, has largely assumed that the total solute concentrations…
Influence of parallel computational uncertainty on simulations of the Coupled General Climate Model
Abstract. This paper investigates the impact of the parallel computational uncertainty due to the round-off error on climate simulations using the Community Climate System Model V…
An analytical verification test for numerically simulated convective flow above a thermally heterogeneous surface
Abstract. An analytical solution of the Boussinesq equations for the motion of a viscous stably stratified fluid driven by a surface thermal forcing with large horizontal gradient…
Formulation, calibration and validation of the DAIS model (version 1), a simple Antarctic ice sheet model sensitive to …
Abstract. The DCESS (Danish Center for Earth System Science) Antarctic Ice Sheet (DAIS) model is presented. Model hindcasts of Antarctic ice sheet (AIS) sea level equivalent are f…
Assessing the nonlinear response of fine particles to precursor emissions: development and application of an extended r…
Abstract. An innovative extended response surface modeling technique (ERSM v1.0) is developed to characterize the nonlinear response of fine particles (PM2.5) to large and simulta…
Generalization and application of the flux-conservative thermodynamic equations in the AROME model of the ALADIN system
Abstract. General yet compact equations are presented to express the thermodynamic impact of physical parameterizations in a NWP or climate model. By expressing the equations in a…
The generic MESSy submodel TENDENCY (v1.0) for process-based analyses in Earth system models
Abstract. The tendencies of prognostic variables in Earth system models are usually only accessible, e.g. for output, as a sum over all physical, dynamical and chemical processes …
Limiting the parameter space in the Carbon Cycle Data Assimilation System (CCDAS)
Abstract. Terrestrial ecosystem models are employed to calculate the sources and sinks of carbon dioxide between land and atmosphere. These models may be heavily parameterised. Wh…
PORT, a CESM tool for the diagnosis of radiative forcing
Abstract. The Parallel Offline Radiative Transfer (PORT) model is a stand-alone tool, driven by model-generated datasets, that can be used for any radiation calculation that the u…
A fire model with distinct crop, pasture, and non-agricultural burning: use of new data and a model-fitting algorithm f…
Abstract. This study describes and evaluates the Fire Including Natural & Agricultural Lands model (FINAL) which, for the first time, explicitly simulates cropland and pasture…
MITgcm-RN v1.0: modeling the transport and fate of radionuclides released from nuclear power plants wastewater in the g…
Abstract. Nuclear energy plays an important role in global energy supply and mitigates greenhouse gas emissions. Potential environmental and human health risks are associated with…
MinVoellmy v1: a lightweight model for simulating rapid mass movements based on a modified Voellmy rheology
Abstract. The Voellmy rheology has been widely used for simulating snow avalanches and also for rock avalanches. Recently, a modified version of this rheology was proposed. While …
Effectiveness and limitations of parameter tuning in reducing biases of top-of-atmosphere radiation and clouds in MIROC…
Abstract. This study discusses how much of the biases in top-of-atmosphere (TOA) radiation and clouds can be removed by parameter tuning in the present-day simulation of a climate…
biospheremetrics v1.0.2: an R package to calculate two complementary terrestrial biosphere integrity indicators – human…
Abstract. Ecosystems are under multiple stressors, and impacts can be measured with multiple variables. Humans have altered mass and energy flows of basically all ecosystems on Ea…
FINAM is not a model (v1.0): a new Python-based model coupling framework
Abstract. In this study, we present a new coupling framework named FINAM (short for “FINAM is not a model”). FINAM is designed to facilitate the coupling of models that were devel…
Quantifying the impact of sub-grid surface wind variability on sea salt and dust emissions in CAM5
Abstract. This paper evaluates the impact of sub-grid variability of surface wind on sea salt and dust emissions in the Community Atmosphere Model version 5 (CAM5). The basic stra…
A scale-dependent blending scheme for WRFDA: impact on regional weather forecasting
Abstract. Due to limitation of the domain size and limited observations used in regional data assimilation and forecasting systems, regional forecasts suffer a general deficiency …
The potential of an observational data set for calibration of a computationally expensive computer model
Abstract. We measure the potential of an observational data set to constrain a set of inputs to a complex and computationally expensive computer model. We use each member in turn …
Modeling and evaluating the effects of irrigation on land–atmosphere interaction in southwestern Europe with the region…
Abstract. Irrigation is a crucial land use practice to adapt agriculture to unsuitable climate and soil conditions. Aiming to improve the growth of plants, irrigation modifies the…
New insights into the South China Sea throughflow and water budget seasonal cycle: evaluation and analysis of a high-re…
Abstract. The South China Sea throughflow (SCSTF) connects the South China Sea (SCS) with neighboring seas and oceans, transferring surface water of the global thermohaline circul…
Soil nitrous oxide emissions from global land ecosystems and their drivers within the LPJ-GUESS model (v4.1)
Abstract. Nitrogen (N) transformation processes by soil microbes account for significant nitrous oxide (N2O) emissions from natural ecosystems and cropland. However, understanding…
Reanalysis of the PacIOOS Hawaiian Island Ocean Forecast System, an implementation of the Regional Ocean Modeling Syste…
Abstract. A 10-year reanalysis of the PacIOOS Hawaiian Island Ocean Forecast System was produced using an incremental strong-constraint 4-D variational data assimilation with the …
EcoGEnIE 1.0: plankton ecology in the cGEnIE Earth system model
Abstract. We present an extension to the carbon-centric Grid Enabled Integrated Earth system model (cGEnIE) that explicitly accounts for the growth and interaction of an arbitrary…
An ensemble of AMIP simulations with prescribed land surface temperatures
Abstract. General circulation models (GCMs) are routinely run under Atmospheric Modelling Intercomparison Project (AMIP) conditions with prescribed sea surface temperatures (SSTs)…
Numerical modelling of diffusion-limited mineral growth for geospeedometry applications
Abstract. Diffusion and crystal growth are common processes in nature and can be observed in rocks that have experienced relatively high temperatures. Information about these proc…
SMAUG v1.0 – a user-friendly muon simulator for the imaging of geological objects in 3-D
Abstract. Knowledge about muon tomography has spread in recent years in the geoscientific community and several collaborations between geologists and physicists have been founded.…
Pixel-level parameter optimization of a terrestrial biosphere model for improving estimation of carbon fluxes with an e…
Abstract. Inaccurate parameter estimation is a significant source of uncertainty in complex terrestrial biosphere models. Model parameters may have large spatial variability, even…
Simulation of a fully coupled 3D glacial isostatic adjustment – ice sheet model for the Antarctic ice sheet over a glac…
Abstract. Glacial isostatic adjustment (GIA) has a stabilizing effect on the evolution of the Antarctic ice sheet by reducing the grounding line migration following ice melt. The …
Representation of fire, land-use change and vegetation dynamics in the Joint UK Land Environment Simulator vn4.9 (JULES)
Abstract. Disturbance of vegetation is a critical component of land cover, but is generally poorly constrained in land surface and carbon cycle models. In particular, land-use cha…
Sources of uncertainty in the SPITFIRE global fire model: development of LPJmL-SPITFIRE1.9 and directions for future …
Abstract. Since its development in 2010, the SPITFIRE global fire model has had a substantial impact on the field of fire modelling using dynamic global vegetation models. It incl…
AI-NAOS: an AI-based nonspherical aerosol optical scheme for the chemical weather model GRAPES_Meso5.1/CUACE
Abstract. The Artificial-Intelligence-based Nonspherical Aerosol Optical Scheme (AI-NAOS) is a newly developed aerosol optical module that improves the representation of aerosol o…
Evaluating integrated surface/subsurface permafrost thermal hydrology models in ATS (v0.88) against observations from a…
Abstract. Numerical simulations are essential tools for understanding the complex hydrologic response of Arctic regions to a warming climate. However, strong coupling among therma…
An update on the 4D-LETKF data assimilation system for the whole neutral atmosphere
Abstract. The four-dimensional local ensemble transform Kalman filter (4D-LETKF) data assimilation system for the whole neutral atmosphere is updated to better represent disturban…
Application of the Multi-Scale Infrastructure for Chemistry and Aerosols version 0 (MUSICAv0) for air quality research …
Abstract. The Multi-Scale Infrastructure for Chemistry and Aerosols Version 0 (MUSICAv0) is a new community modeling infrastructure that enables the study of atmospheric compositi…
The Normalized Interpolated Convolution from an Adaptive Subgrid (NICAS) method
Abstract. This article presents an innovative method to apply a correlation operator to a vector in a high-dimensional system, as often needed in variational data assimilation alg…
Updating sea spray aerosol emissions in the Community Multiscale Air Quality (CMAQ) model version 5.0.2
Abstract. Sea spray aerosols (SSAs) impact the particle mass concentration and gas-particle partitioning in coastal environments, with implications for human and ecosystem health.…
HSW-V v1.0: localized injections of interactive volcanic aerosols and their climate impacts in a simple general circula…
Abstract. A new set of standalone parameterizations is presented for simulating the injection, evolution, and radiative forcing by stratospheric volcanic aerosols against an ideal…
Identifying sea breezes from atmospheric model output (sea_breeze v1.1)
Abstract. The sea breeze is a mesoscale atmospheric circulation that has implications for human activity and wind energy availability in coastal areas. Sea breezes have been studi…
Development of a new semi-empirical parameterization for below-cloud scavenging of size-resolved aerosol particles by b…
Abstract. A parameter called the scavenging coefficient Λ is widely used in aerosol chemical transport models (CTMs) to describe below-cloud scavenging of aerosol particles by rai…
Implementation of the MOSAIC aerosol module (v1.0) in the Canadian air quality model GEM-MACH (v3.1)
Abstract. The Model for Simulating Aerosol Interactions and Chemistry (MOSAIC) aerosol thermodynamics and sectional framework has been implemented into the Canadian operational ai…
Ozone air quality simulations with WRF-Chem (v3.5.1) over Europe: model evaluation and chemical mechanism comparison
Abstract. We present an evaluation of the online regional model WRF-Chem over Europe with a focus on ground-level ozone (O3) and nitrogen oxides (NOx). The model performance is ev…
LPJ-GM 1.0: simulating migration efficiently in a dynamic vegetation model
Abstract. Dynamic global vegetation models are a common tool to assess the effect of climate and land use change on vegetation. Though most applications of dynamic global vegetati…
Soil parameterization in land surface models drives large discrepancies in soil moisture predictions across hydrologica…
Abstract. Land surface models (LSMs) are critical components of Earth system models (ESMs), enabling the simulation of energy and water fluxes that are essential for understanding…
Prediction of source contributions to urban background PM <sub>10</sub> concent…
Abstract. Despite the progress made in the latest decades, air pollution is still the primary environmental cause of premature death in Europe. The urban population risks more lik…
Historical greenhouse gas concentrations for climate modelling (CMIP6)
Abstract. Atmospheric greenhouse gas (GHG) concentrations are at unprecedented, record-high levels compared to the last 800 000 years. Those elevated GHG concentrations warm the p…
Photolysis rates in correlated overlapping cloud fields: Cloud-J 7.3c
Abstract. A new approach for modeling photolysis rates (J values) in atmospheres with fractional cloud cover has been developed and is implemented as Cloud-J – a multi-scattering …
The Variable Infiltration Capacity model version 5 (VIC-5): infrastructure improvements for new applications and reprod…
Abstract. The Variable Infiltration Capacity (VIC) model is a macroscale semi-distributed hydrologic model. VIC development began in the early 1990s and the model has since been u…
Modular Assessment of Rainfall–Runoff Models Toolbox (MARRMoT) v1.2: an open-source, extendable framework providing imp…
Abstract. This paper presents the Modular Assessment of Rainfall–Runoff Models Toolbox (MARRMoT): a modular open-source toolbox containing documentation and model code based on 46…
Long-term hydro-economic analysis tool for evaluating global groundwater cost and supply: Superwell v1.1
Abstract. Groundwater plays a key role in meeting water demands, supplying over 40 % of irrigation water globally, with this role likely to grow as water demands and surface water…
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