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Showing 26151 to 26200 of 59105 works
Description and validation of an intermediate complexity model for ecosystem photosynthesis and evapotranspiration: AC…
Abstract. Photosynthesis (gross primary production, GPP) and evapotranspiration (ET) are ecosystem processes with global significance for climate, the global carbon and hydrologic…
Particle swarm optimization for the estimation of surface complexation constants with the geochemical model PHREEQC-3.1…
Abstract. Sorption of metals on minerals is a key process in treatment water, natural aquatic environments, and other water-related technologies. Sorption processes are usually si…
Development of a fast radiative transfer model for ground-based microwave radiometers (ARMS-gb v1.0): validation and co…
Abstract. This study proposes a fast radiative transfer model, the Advanced Radiative Transfer Modeling System – ground-based (ARMS-gb), designed to simulate brightness temperatur…
Observational operator for fair model evaluation with ground NO <sub>2</sub> me…
Abstract. Measurements collected from ground monitoring stations have gained popularity as a valuable data source for evaluating numerical models and correcting model errors throu…
Wave forecast investigations on downscaling, source terms, and tides for Aotearoa New Zealand
Abstract. This study evaluates the effects of downscaling, source terms, and tidal interactions on numerical wave forecasts in Aotearoa New Zealand. We utilised a set of three nes…
Overcoming computational challenges to realize meter- to submeter-scale resolution in cloud simulations using the supe…
Abstract. A particle-based cloud model was developed for meter- to submeter-scale-resolution simulations of warm clouds. Simplified cloud microphysics schemes have already made me…
Implementation of a Gaussian Markov random field sampler for forward uncertainty quantification in the Ice-sheet and Se…
Abstract. Assessing the impact of uncertainties in ice-sheet models is a major and challenging issue that needs to be faced by the ice-sheet community to provide more robust and r…
Consistent point data assimilation in Firedrake and Icepack
Abstract. We present a high-level, differentiable, and composable abstraction for the point evaluation of the solution fields of partial differential equation models. The new func…
Description and validation of Vehicular Emissions from Road Traffic (VERT) 1.0, an R-based framework for estimating roa…
Abstract. VERT (Vehicular Emissions from Road Traffic) is an R package developed to estimate traffic emissions of a wide range of pollutants and greenhouse gases based on traffic …
Coupling the Canadian Terrestrial Ecosystem Model (CTEM v. 2.0) to Environment and Climate Change Canada's greenhouse g…
Abstract. The Canadian Land Surface Scheme and the Canadian Terrestrial Ecosystem Model (CLASS-CTEM) together form the land surface component in the family of Canadian Earth syste…
An axisymmetric non-hydrostatic model for double-diffusive water systems
Abstract. The three-dimensional (3-D) modelling of water systems involving double-diffusive processes is challenging due to the large computation times required to solve the flow …
Impacts of microtopographic snow redistribution and lateral subsurface processes on hydrologic and thermal states in an…
Abstract. Microtopographic features, such as polygonal ground, are characteristic sources of landscape heterogeneity in the Alaskan Arctic coastal plain. Here, we analyze the effe…
Description and validation of the Simple, Efficient, Dynamic, Global, Ecological Simulator (SEDGES v.1.0)
Abstract. In this paper, we present a simple dynamic global vegetation model whose primary intended use is auxiliary to the land–atmosphere coupling scheme of a climate model, par…
Impact of ocean vertical-mixing parameterization on Arctic sea ice and upper-ocean properties using the NEMO-SI3 model
Abstract. We evaluate the vertical turbulent-kinetic-energy (TKE) mixing scheme of the NEMO-SI3 ocean–sea-ice model in sea-ice-covered regions of the Arctic Ocean. Specifically, w…
SWIIFT v0.10: a numerical model of wave-induced sea ice breakup with an energy criterion
Abstract. The wave-induced breakup of sea ice contributes to the formation of the marginal ice zone in the polar oceans. Understanding how waves fragment the ice cover into indivi…
A joint reconstruction and model selection approach for large-scale linear inverse modeling (msHyBR v2)
Abstract. Inverse models arise in various environmental applications, ranging from atmospheric modeling to geosciences. Inverse models can often incorporate predictor variables, s…
The Environment and Climate Change Canada Carbon Assimilation System (EC-CAS v1.0): demonstration with simulated CO obs…
Abstract. In this study, we present the development of a new coupled weather and carbon monoxide (CO) data assimilation system based on the Environment and Climate Change Canada (…
Simulation of marine stratocumulus using the super-droplet method: numerical convergence and comparison to a double-mom…
Abstract. The super-droplet method (SDM) is a Lagrangian particle-based numerical scheme for cloud microphysics. In this work, a series of simulations based on the DYCOMS-II (RF02…
Analysis of model error in forecast errors of extended atmospheric Lorenz 05 systems and the ECMWF system
Abstract. Forecast error growth as a function of lead time of atmospheric phenomena is caused by initial and model errors. When studying the initial error growth, it may turn out …
Implementation of an intermediate-complexity snow-physics scheme (ISBA-Explicit Snow) into a sea ice model (SI …
Abstract. Snow plays a crucial role in the formation and sustainability of sea ice. Due to its thermal properties, snow acts as an insulating layer, shielding the ice from the air…
An information-theoretic approach to obtain ensemble averages from Earth system models
Abstract. Inferences in Earth system science rely to a large degree on the numerical output of multiple Earth System Models. It has been shown that for many variables of interest,…
Scalable Feature Extraction and Tracking (SCAFET): a general framework for feature extraction from large climate data s…
Abstract. This study describes a generalized computational mathematical framework, Scalable Feature Extraction and Tracking (SCAFET), that extracts and tracks features from large …
Application of a satellite-retrieved sheltering parameterization (v1.0) for dust event simulation with WRF-Chem v4.1
Abstract. Roughness features (e.g., rocks, vegetation, furrows) that shelter or attenuate wind flow over the soil surface can considerably affect the magnitude and spatial distrib…
A fast, single-iteration ensemble Kalman smoother for sequential data assimilation
Abstract. Ensemble variational methods form the basis of the state of the art for nonlinear, scalable data assimilation, yet current designs may not be cost-effective for real-tim…
Numerical integrators for Lagrangian oceanography
Abstract. A common task in Lagrangian oceanography is to calculate a large number of drifter trajectories from a velocity field precalculated with an ocean model. Mathematically, …
JULES-BE: representation of bioenergy crops and harvesting in the Joint UK Land Environment Simulator vn5.1
Abstract. We describe developments to the land surface model JULES, allowing for flexible user-prescribed harvest regimes of various perennial bioenergy crops or natural vegetatio…
Simulating lightning NO production in CMAQv5.2: performance evaluations
Abstract. This study assesses the impact of the lightning nitric oxide (LNO) production schemes in the Community Multiscale Air Quality (CMAQ) model on ground-level air quality as…
A parameterisation for the co-condensation of semi-volatile organics into multiple aerosol particle modes
Abstract. A new parameterisation for the cloud droplet activation of multiple aerosol modes is presented that includes the effects of the co-condensation of semi-volatile organic …
A microwave scattering database of oriented ice and snow particles: supporting habit-dependent growth models and radar …
Abstract. The optical properties of atmospheric hydrometeors are a crucial component of any forward operator. These forward operators are essential data assimilation, and atmosphe…
QuadTune version 1: a regional tuner for global atmospheric models
Abstract. When a new, better-formulated physical parameterization is introduced into a global atmospheric model, aspects of the global model solutions are sometimes degraded. Then…
StraitFlux – precise computations of water strait fluxes on various modeling grids
Abstract. Oceanic transports shape the global climate, but the evaluation and validation of this key quantity based on reanalysis and model data are complicated by the distortion …
Graphics-processing-unit-accelerated ice flow solver for unstructured meshes using the Shallow-Shelf Approximation (Fas…
Abstract. Ice-sheet flow models capable of accurately projecting their future mass balance constitute tools to improve flood risk assessment and assist sea-level rise mitigation a…
Multi-sensor cloud retrieval simulator and remote sensing from model parameters – Part 1: Synthetic sensor radiance for…
Abstract. In this paper we describe a general procedure for calculating synthetic sensor radiances from variable output from a global atmospheric forecast model. In order to take …
Supersaturation calculation in large eddy simulation models for prediction of the droplet number concentration
Abstract. A new parameterization scheme is described for calculation of supersaturation in LES models that specifically aims at the simulation of cloud condensation nuclei (CCN) a…
Evaluation of a present-day climate simulation with a new coupled atmosphere-ocean model GENMOM
Abstract. We present a new, non-flux corrected AOGCM, GENMOM, that combines the GENESIS version 3 atmospheric GCM (Global Environmental and Ecological Simulation of Interactive Sy…
Coupling technologies for Earth System Modelling
Abstract. This paper presents a review of the software currently used in climate modelling in general and in CMIP5 in particular to couple the numerical codes representing the dif…
The CSIRO Mk3L climate system model v1.0 coupled to the CABLE land surface scheme v1.4b: evaluation of the control …
Abstract. The CSIRO Mk3L climate system model, a reduced-resolution coupled general circulation model, has previously been described in this journal. The model is configured for m…
The Arctic Predictability and Prediction on Seasonal-to-Interannual TimEscales (APPOSITE) data set version 1
Abstract. Recent decades have seen significant developments in climate prediction capabilities at seasonal-to-interannual timescales. However, until recently the potential of such…
Enhanced representation of soil NO emissions in the Community Multiscale Air Quality (CMAQ) model version 5.0.2
Abstract. Modeling of soil nitric oxide (NO) emissions is highly uncertain and may misrepresent its spatial and temporal distribution. This study builds upon a recently introduced…
Comparison of PMCAMx aerosol optical depth predictions over Europe with AERONET and MODIS measurements
Abstract. The ability of chemical transport model (CTM) PMCAMx to reproduce aerosol optical depth (AOD) measurements by the Aerosol Robotic Network (AERONET) and the Moderate Reso…
RTTOV-gb – adapting the fast radiative transfer model RTTOV for the assimilation of ground-based microwave radiometer o…
Abstract. Ground-based microwave radiometers (MWRs) offer a new capability to provide continuous observations of the atmospheric thermodynamic state in the planetary boundary laye…
ASAM v2.7: a compressible atmospheric model with a Cartesian cut cell approach
Abstract. In this work, the fully compressible, three-dimensional, nonhydrostatic atmospheric model called All Scale Atmospheric Model (ASAM) is presented. A cut cell approach is …
On the sensitivity of 3-D thermal convection codes to numerical discretization: a model intercomparison
Abstract. Fully 3-D numerical simulations of thermal convection in a spherical shell have become a standard for studying the dynamics of pattern formation and its stability under …
Integration of prognostic aerosol–cloud interactions in a chemistry transport model coupled offline to a regional clima…
Abstract. To reduce uncertainties and hence to obtain a better estimate of aerosol (direct and indirect) radiative forcing, next generation climate models aim for a tighter coupli…
Resolution dependence of interlinked Southern Ocean biases in global coupled HadGEM3 models
Abstract. The early spinup of the HadGEM3 coupled model displays large-scale biases in the Southern Ocean at an eddy-permitting ocean resolution: the subpolar gyres and Antarctic …
Development of efficient GPU parallelization of WRF Yonsei University planetary boundary layer scheme
Abstract. The planetary boundary layer (PBL) is the lowest part of the atmosphere and where its character is directly affected by its contact with the underlying planetary surface…
Investigating soil moisture–climate interactions with prescribed soil moisture experiments: an assessment with the Comm…
Abstract. Land surface hydrology is an important control of surface weather and climate. A valuable technique to investigate this link is the prescription of soil moisture in land…
Parallel I∕O in Flexible Modelling System (FMS) and Modular Ocean Model 5 (MOM5)
Abstract. We present an implementation of parallel I∕O in the Modular Ocean Model (MOM), a numerical ocean model used for climate forecasting, and determine its optimal performanc…
Modeling the effects of litter stoichiometry and soil mineral N availability on soil organic matter formation using CEN…
Abstract. Microbial decomposition of plant litter is a crucial process for the land carbon (C) cycle, as it directly controls the partitioning of litter C between CO2 released to …
Analysis of the GEFS-Aerosols annual budget to better understand aerosol predictions simulated in the model
Abstract. In September 2020, a global aerosol forecasting model was implemented as an ensemble member of the National Oceanic and Atmospheric Administration (NOAA) National Center…
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