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Showing 25901 to 25950 of 59105 works
A parallelization scheme to simulate reactive transport in the subsurface environment with OGS#IPhreeqc 5.5.7-3.1.2
Abstract. The open-source scientific software packages OpenGeoSys and IPhreeqc have been coupled to set up and simulate thermo-hydro-mechanical-chemical coupled processes with sim…
A model for urban biogenic CO <sub>2</sub> fluxes: Solar-Induced Fluorescence f…
Abstract. When estimating fossil fuel carbon dioxide (FFCO2) emissions from observed CO2 concentrations, the accuracy can be hampered by biogenic carbon exchanges during the growi…
Effects of spatial resolution on WRF v3.8.1 simulated meteorology over the central Himalaya
Abstract. The sensitive ecosystem of the central Himalayan (CH) region, which is experiencing enhanced stress from anthropogenic forcing, requires adequate atmospheric observation…
Quantitative assessment of fire and vegetation properties in simulations with fire-enabled vegetation models from the F…
Abstract. Global fire-vegetation models are widely used to assess impacts of environmental change on fire regimes and the carbon cycle and to infer relationships between climate, …
Modeling the small-scale deposition of snow onto structured Arctic sea ice during a MOSAiC storm using snowBedFoam 1.0.
Abstract. The remoteness and extreme conditions of the Arctic make it a very difficult environment to investigate. In these polar regions covered by sea ice, the wind is relativel…
GPU-accelerated atmospheric chemical kinetics in the ECHAM/MESSy (EMAC) Earth system model (version 2.52)
Abstract. This paper presents an application of GPU accelerators in Earth system modeling. We focus on atmospheric chemical kinetics, one of the most computationally intensive tas…
The TropD software package (v1): standardized methods for calculating tropical-width diagnostics
Abstract. Observational and modeling studies suggest that Earth's tropical belt has widened over the late 20th century and will continue to widen throughout the 21st century. Yet,…
Coupling a three-dimensional subsurface flow and transport model with a land surface model to simulate stream–aquifer–l…
Abstract. A fully coupled three-dimensional surface and subsurface land model is developed and applied to a site along the Columbia River to simulate three-way interactions among …
The Oceanographic Multipurpose Software Environment (OMUSE v1.0)
Abstract. In this paper we present the Oceanographic Multipurpose Software Environment (OMUSE). OMUSE aims to provide a homogeneous environment for existing or newly developed num…
Evaluation of WRF-SFIRE performance with field observations from the FireFlux experiment
Abstract. This study uses in situ measurements collected during the FireFlux field experiment to evaluate and improve the performance of the coupled atmosphere–fire model WRF-SFIR…
An adaptive method for speeding up the numerical integration of chemical mechanisms in atmospheric chemistry models: ap…
Abstract. The major computational bottleneck in atmospheric chemistry models is the numerical integration of the stiff coupled system of kinetic equations describing the chemical …
A new aerosol wet removal scheme for the Lagrangian particle model FLEXPART v10
Abstract. A new, more physically based wet removal scheme for aerosols has been implemented in the Lagrangian particle dispersion model FLEXPART. It uses three-dimensional cloud w…
Linking hydraulic traits to tropical forest function in a size-structured and trait-driven model (TFS v.1-Hydro)
Abstract. Forest ecosystem models based on heuristic water stress functions poorly predict tropical forest response to drought partly because they do not capture the diversity of …
Air quality modelling in the Berlin–Brandenburg region using WRF-Chem v3.7.1: sensitivity to resolution of model grid a…
Abstract. Air pollution is the number one environmental cause of premature deaths in Europe. Despite extensive regulations, air pollution remains a challenge, especially in urban …
Errors and improvements in the use of archived meteorological data for chemical transport modeling: an analysis using …
Abstract. Global simulations of atmospheric chemistry are commonly conducted with off-line chemical transport models (CTMs) driven by archived meteorological data from general cir…
Variational inverse modeling within the Community Inversion Framework v1.1 to assimilate <i>δ</i> …
Abstract. Atmospheric CH4 mole fractions resumed their increase in 2007 after a plateau during the 1999–2006 period, indicating relative changes in the sources and sinks. Estimati…
RCEMIP-II: mock-Walker simulations as phase II of the radiative–convective equilibrium model intercomparison project
Abstract. The radiative–convective equilibrium (RCE) model intercomparison project (RCEMIP) leveraged the simplicity of RCE to focus attention on moist convective processes and th…
Lagrangian tracking of sea ice in Community Ice CodE (CICE; version 5)
Abstract. Sea ice models are essential tools for simulating the thermodynamic and dynamic processes of sea ice and the coupling with the polar atmosphere and ocean. Popular models…
Extension of a gaseous dry deposition algorithm to oxidized volatile organic compounds and hydrogen cyanide for applica…
Abstract. The dry deposition process refers to flux loss of an atmospheric pollutant due to uptake of the pollutant by the Earth's surfaces, including vegetation, underlying soil,…
Update and evaluation of the ozone dry deposition in Oslo CTM3 v1.0
Abstract. High concentrations of ozone in ambient air are hazardous not only to humans but to the ecosystem in general. The impact of ozone damage on vegetation and agricultural p…
The probabilistic hydrological MARCS <sup>HYDRO</sup> (the MARkov Chain System)…
Abstract. The question of the environmental risks of social and economic infrastructure has recently become apparent due to an increase in the number of extreme weather events. Ex…
Reducing time and computing costs in EC-Earth: an automatic load-balancing approach for coupled Earth system models
Abstract. Earth system models (ESMs) are intricate models employed for simulating the Earth's climate, typically constructed from distinct independent components dedicated to simu…
Using the International Tree-Ring Data Bank (ITRDB) records as century-long benchmarks for global land-surface models
Abstract. The search for a long-term benchmark for land-surface models (LSMs) has brought tree-ring data to the attention of the land-surface modelling community, as tree-ring dat…
Development of four-dimensional variational assimilation system based on the GRAPES–CUACE adjoint model (GRAPES–CUACE-4…
Abstract. In this study, a four-dimensional variational (4D-Var) data assimilation system was developed based on the GRAPES–CUACE (Global/Regional Assimilation and PrEdiction Syst…
Sensitivity of asymmetric oxygen minimum zones to mixing intensity and stoichiometry in the tropical Pacific using a ba…
Abstract. The tropical Pacific Ocean holds the two largest oxygen minimum zones (OMZs) in the world's oceans, showing a prominent hemispheric asymmetry, with a much stronger and b…
Simulation of atmospheric N <sub>2</sub> O with GEOS-Chem and its adjoint: eval…
Abstract. We describe a new 4D-Var inversion framework for nitrous oxide (N2O) based on the GEOS-Chem chemical transport model and its adjoint, and apply it in a series of observi…
A new ensemble-based consistency test for the Community Earth System Model (pyCECT v1.0)
Abstract. Climate simulation codes, such as the Community Earth System Model (CESM), are especially complex and continually evolving. Their ongoing state of development requires f…
Earth Orbit v2.1: a 3-D visualization and analysis model of Earth's orbit, Milankovitch cycles and insolation
Abstract. Milankovitch theory postulates that periodic variability of Earth's orbital elements is a major climate forcing mechanism, causing, for example, the contemporary glacial…
Evaluation of the sectional aerosol microphysics module SALSA implementation in ECHAM5-HAM aerosol-climate model
Abstract. We present the implementation and evaluation of a sectional aerosol microphysics module SALSA within the aerosol-climate model ECHAM5-HAM. This aerosol microphysics modu…
A hierarchical mesh refinement technique for global 3-D spherical mantle convection modelling
Abstract. A method for incorporating multi-resolution capabilities within pre-existing global 3-D spherical mantle convection codes is presented. The method, which we term "geomet…
Simplified aerosol modeling for variational data assimilation
Abstract. We have developed a simplified aerosol model together with its tangent linear and adjoint versions for the ultimate aim of optimizing global aerosol and aerosol precurso…
Simulation of land surface temperatures: comparison of two climate models and satellite retrievals
Abstract. Recently there has been significant progress in the retrieval of land surface temperature from satellite observations. Satellite retrievals of surface temperature offer …
EwE-F 1.0: an implementation of Ecopath with Ecosim in Fortran 95/2003 for coupling and integration with other models
Abstract. Societal and scientific challenges foster the implementation of the ecosystem approach to marine ecosystem analysis and management, which is a comprehensive means of int…
Bayesian calibration of the Thermosphere-Ionosphere Electrodynamics General Circulation Model (TIE-GCM)
Abstract. In this paper, we demonstrate a procedure for calibrating a complex computer simulation model having uncertain inputs and internal parameters, with application to the NC…
A multiresolution spatial parameterization for the estimation of fossil-fuel carbon dioxide emissions via atmospheric i…
Abstract. The characterization of fossil-fuel CO2 (ffCO2) emissions is paramount to carbon cycle studies, but the use of atmospheric inverse modeling approaches for this purpose h…
Development and basic evaluation of a prognostic aerosol scheme (v1) in the CNRM Climate Model CNRM-CM6
Abstract. We have implemented a prognostic aerosol scheme (v1) in CNRM-CM6, the climate model of CNRM-GAME and CERFACS, based upon the GEMS/MACC aerosol module of the ECMWF operat…
An approach to enhance pnetCDF performance in environmental modeling applications
Abstract. Data intensive simulations are often limited by their I/O (input/output) performance, and "novel" techniques need to be developed in order to overcome this limitation. T…
An evaluation of the regional distribution and wet deposition of secondary inorganic aerosols and their gaseous precurs…
Abstract. Secondary Inorganic Aerosol (SIA) makes up a considerable fraction of the total particulate matter exposure and, thus, is an important product from any forecasting syste…
Improving trajectory calculations by FLEXPART 10.4+ using single-image super-resolution
Abstract. Lagrangian trajectory or particle dispersion models as well as semi-Lagrangian advection schemes require meteorological data such as wind, temperature and geopotential a…
Retrieving atmospheric thermodynamic and hydrometeor profiles using a thermodynamic-constrained Kalman filter 1D-Var fr…
Abstract. Ground-based microwave radiometers (GMWRs) provide continuous thermodynamic profiling but suffer from degraded accuracy under cloudy and precipitating conditions when us…
Development of a semi-Lagrangian advection scheme for the NEMO ocean model (3.1)
Abstract. As resolutions of ocean circulation models increase, the advective Courant number – the ratio between the distance travelled by a fluid parcel in one time step and the g…
Evaluation and development of surface layer scheme representation of temperature inversions over boreal forests in Arct…
Abstract. In this study, the Noah land surface model used in conjunction with the Mellor–Yamada–Janjić surface layer scheme (hereafter, Noah-MYJ) and the Noah multiphysics scheme …
Development and testing scenarios for implementing land use and land cover changes during the Holocene in Earth syste…
Abstract. Anthropogenic changes in land use and land cover (LULC) during the pre-industrial Holocene could have affected regional and global climate. Existing scenarios of LULC ch…
Retrieving monthly and interannual total-scale pH (pH <sub>T</sub> ) on the Eas…
Abstract. While our understanding of pH dynamics has strongly progressed for open-ocean regions, for marginal seas such as the East China Sea (ECS) shelf progress has been constra…
Comparison of calibration methods of a PICO basal ice shelf melt module implemented in the GRISLI v2.0 ice sheet model
Abstract. Uncertainties in future sea level rise are mainly due to uncertainties in Antarctic ice sheet projections. Indeed, modelling the future of the Antarctic ice sheet presen…
CITRATE 1.0: Phytoplankton continuous trait-distribution model with one-dimensional physical transport applied to the N…
Abstract. Diversity plays critical roles in ecosystem functioning, but it remains challenging to model phytoplankton diversity in order to better understand those roles and reprod…
Towards variance-conserving reconstructions of climate indices with Gaussian process regression in an embedding space
Abstract. We present a new framework for the reconstruction of climate indices based on proxy data such as tree rings. The framework is based on the supervised learning method Gau…
A novel method for objective identification of 3-D potential vorticity anomalies
Abstract. Potential vorticity (PV) analysis plays a central role in studying atmospheric dynamics and in particular in studying the life cycle of weather systems. The three-dimens…
Validation of turbulent heat transfer models against eddy covariance flux measurements over a seasonally ice-covered la…
Abstract. In this study we analyzed turbulent heat fluxes over a seasonal ice cover on a boreal lake located in southern Finland. Eddy covariance (EC) flux measurements of sensibl…
Development and evaluation of spectral nudging strategy for the simulation of summer precipitation over the Tibetan Pla…
Abstract. Precipitation is the key component determining the water budget and climate change of the Tibetan Plateau (TP) under a warming climate. This high-latitude region is rega…
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