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Showing 25101 to 25150 of 59105 works
Implementation of the ISORROPIA-lite aerosol thermodynamics model into the EMAC chemistry climate model (based on MESSy…
Abstract. This study explores the differences in performance and results by various versions of the ISORROPIA thermodynamic module implemented within the ECHAM/MESSy Atmospheric C…
A permafrost implementation in the simple carbon–climate model Hector v.2.3pf
Abstract. Permafrost currently stores more than a fourth of global soil carbon. A warming climate makes this carbon increasingly vulnerable to decomposition and release into the a…
Inverse transport modeling of volcanic sulfur dioxide emissions using large-scale simulations
Abstract. An inverse transport modeling approach based on the concepts of sequential importance resampling and parallel computing is presented to reconstruct altitude-resolved tim…
A new WRF-Chem treatment for studying regional-scale impacts of cloud processes on aerosol and trace gases in parameter…
Abstract. A new treatment of cloud effects on aerosol and trace gases within parameterized shallow and deep convection, and aerosol effects on cloud droplet number, has been imple…
Partially coupled spin-up of the MPI-ESM: implementation and first results
Abstract. Large-scale fully coupled Earth system models (ESMs) are usually applied in climate projections like the IPCC (Intergovernmental Panel on Climate Change) reports. In the…
Performance of McRAS-AC in the GEOS-5 AGCM: aerosol-cloud-microphysics, precipitation, cloud radiative effects, and cir…
Abstract. A revised version of the Microphysics of clouds with Relaxed Arakawa-Schubert and Aerosol-Cloud interaction scheme (McRAS-AC) including, among others, a new ice nucleati…
Quantifying the carbon uptake by vegetation for Europe on a 1 km <sup>2</sup> r…
Abstract. In this study we compare monthly gross primary productivity (GPP) time series (2000–2007), computed for Europe with the Biosphere Energy Transfer Hydrology (BETHY/DLR) m…
A computationally efficient method to model similar and alternate stratospheric aerosol injection experiments using pre…
Abstract. Climate model simulations incorporating stratospheric aerosol injection (SAI) generally require more computational resources compared to out-of-the-box applications, due…
GCAM–GLORY v1.0: representing global reservoir water storage in a multi-sector human–Earth system model
Abstract. Reservoirs play a significant role in modifying the spatiotemporal availability of surface water to meet multi-sector human demands, despite representing a relatively sm…
Using field observations to inform thermal hydrology models of permafrost dynamics with ATS (v0.83)
Abstract. Climate change is profoundly transforming the carbon-rich Arctic tundra landscape, potentially moving it from a carbon sink to a carbon source by increasing the thicknes…
A rapid-application emissions-to-impacts tool for scenario assessment: Probabilistic Regional Impacts from Model patt…
Abstract. Climate policies evolve quickly, and new scenarios designed around these policies are used to illustrate how they impact global mean temperatures using simple climate mo…
Fldgen v1.0: an emulator with internal variability and space–time correlation for Earth system models
Abstract. Earth system models (ESMs) are the gold standard for producing future projections of climate change, but running them is difficult and costly, and thus researchers are g…
Evaluation of MITgcm-based ocean reanalyses for the Southern Ocean
Abstract. Global- and basin-scale ocean reanalyses are becoming easily accessible and are utilized widely to study the Southern Ocean. However, such ocean reanalyses are optimized…
ChAP 1.0: a stationary tropospheric sulfur cycle for Earth system models of intermediate complexity
Abstract. A stationary, computationally efficient scheme ChAP 1.0 (Chemical and Aerosol Processes, version 1.0) for the sulfur cycle in the troposphere is developed. This scheme i…
Three-dimensional geological modelling of igneous intrusions in LoopStructural v1.5.10
Abstract. Over the last 2 decades, there have been significant advances in the 3D modelling of geological structures via the incorporation of geological knowledge into the model a…
Coupling framework (1.0) for the PISM (1.1.4) ice sheet model and the MOM5 (5.1.0) ocean model via the PICO ice shelf c…
Abstract. The past and future evolution of the Antarctic Ice Sheet is largely controlled by interactions between the ocean and floating ice shelves. To investigate these interacti…
The impact of hurricane disturbances on a tropical forest: implementing a palm plant functional type and hurricane dist…
Abstract. Hurricanes commonly disturb and damage tropical forests. Hurricane frequency and intensity are predicted to change under the changing climate. The short-term impacts of …
Revised treatment of wet scavenging processes dramatically improves GEOS-Chem 12.0.0 simulations of surface nitric acid…
Abstract. The widely used community model GEOS-Chem 12.0.0 and previous versions have been recognized to significantly overestimate the concentrations of gaseous nitric acid, aero…
ICONGETM v1.0 – flexible NUOPC-driven two-way coupling via ESMF exchange grids between the unstructured-grid atmosphere…
Abstract. Two-way model coupling is important for representing the mutual interactions and feedbacks between atmosphere and ocean dynamics. This work presents the development of t…
Toward exascale climate modelling: a python DSL approach to ICON's (icosahedral non-hydrostatic) dynamical core (ico…
Abstract. A refactored atmospheric dynamical core of the ICON model implemented in GT4Py, a Python-based domain-specific language designed for performance portability across heter…
Huge ensembles – Part 2: Properties of a huge ensemble of hindcasts generated with spherical Fourier neural operators
Abstract. In Part 1, we created an ensemble based on spherical Fourier neural operators. As initial condition perturbations, we used bred vectors, and as model perturbations, we u…
AtChem (version 1), an open-source box model for the Master Chemical Mechanism
Abstract. AtChem is an open-source zero-dimensional box model for atmospheric chemistry. Any general set of chemical reactions can be used with AtChem, but the model was designed …
Global high-resolution simulations of CO <sub>2</sub> and CH …
Abstract. The Greenhouse gases Observing SATellite (GOSAT) measures column-averaged dry air mole fractions of carbon dioxide and methane (XCO2 and XCH4, respectively). Since the l…
G&M3D 1.0: an interactive framework for 3D model construction and forward calculation of potential fields
Abstract. Building source models and performing forward calculations are fundamental for processing, analyzing, and interpreting geophysical data. However, open-source tools that …
DRYP 1.0: a parsimonious hydrological model of DRYland Partitioning of the water balance
Abstract. Dryland regions are characterised by water scarcity and are facing major challenges under climate change. One difficulty is anticipating how rainfall will be partitioned…
Simulating the thermal regime and thaw processes of ice-rich permafrost ground with the land-surface model CryoGrid 3
Abstract. Thawing of permafrost in a warming climate is governed by a complex interplay of different processes of which only conductive heat transfer is taken into account in most…
Generalised drought index: a novel multi-scale daily approach for drought assessment
Abstract. Drought is a complex climatic phenomenon characterised by water scarcity and is recognised as the most widespread and insidious natural hazard, posing significant challe…
Efficient surrogate modeling methods for large-scale Earth system models based on machine-learning techniques
Abstract. Improving predictive understanding of Earth system variability and change requires data–model integration. Efficient data–model integration for complex models requires s…
Extreme events representation in CMCC-CM2 standard and high-resolution general circulation models
Abstract. The recent advancements in climate modeling partially build on the improvement of horizontal resolution in different components of the simulating system. A higher resolu…
Data assimilation for the Model for Prediction Across Scales – Atmosphere with the Joint Effort for Data assimilation I…
Abstract. An ensemble of 3D ensemble-variational (En-3DEnVar) data assimilations is demonstrated with the Joint Effort for Data assimilation Integration (JEDI) with the Model for …
Oil palm modelling in the global land surface model ORCHIDEE-MICT
Abstract. Oil palm is the most productive oil crop that provides ∼ 40 % of the global vegetable oil supply, with 7 % of the cultivated land devoted to oil plants. The rapid expans…
Assessment of gap-filling techniques applied to satellite phytoplankton composition products for the Atlantic Ocean
Abstract. Phytoplankton are vital to marine biogeochemical cycles and form the base of the marine food web. Comprehensive datasets offering a spatiotemporal perspective on phytopl…
Optical flow models as an open benchmark for radar-based precipitation nowcasting (rainymotion v0.1)
Abstract. Quantitative precipitation nowcasting (QPN) has become an essential technique in various application contexts, such as early warning or urban sewage control. A common he…
Toward a minimal representation of aerosols in climate models: description and evaluation in the Community Atmosphere M…
Abstract. A modal aerosol module (MAM) has been developed for the Community Atmosphere Model version 5 (CAM5), the atmospheric component of the Community Earth System Model versio…
The Decadal Climate Prediction Project (DCPP) contribution to CMIP6
Abstract. The Decadal Climate Prediction Project (DCPP) is a coordinated multi-model investigation into decadal climate prediction, predictability, and variability. The DCPP makes…
Overview of the PALM model system 6.0
Abstract. In this paper, we describe the PALM model system 6.0. PALM (formerly an abbreviation for Parallelized Large-eddy Simulation Model and now an independent name) is a Fortr…
SMRT: an active–passive microwave radiative transfer model for snow with multiple microstructure and scattering formula…
Abstract. The Snow Microwave Radiative Transfer (SMRT) thermal emission and backscatter model was developed to determine uncertainties in forward modeling through intercomparison …
Evaluation of ECMWF-IFS (version 41R1) operational model forecasts of aerosol transport by using ceilometer network mea…
Abstract. In this paper, we present a comparison of model simulations of aerosol profiles with measurements of the ceilometer network operated by the German Weather Service (DWD) …
The Vulnerability, Impacts, Adaptation and Climate Services Advisory Board (VIACS AB v1.0) contribution to CMIP6
Abstract. This paper describes the motivation for the creation of the Vulnerability, Impacts, Adaptation and Climate Services (VIACS) Advisory Board for the Sixth Phase of the Cou…
libcloudph++ 2.0: aqueous-phase chemistry extension of the particle-based cloud microphysics scheme
Abstract. This paper introduces a new scheme available in the library of algorithms for representing cloud microphysics in numerical models named libcloudph++. The scheme extends …
GStatSim V1.0: a Python package for geostatistical interpolation and conditional simulation
Abstract. The interpolation of geospatial phenomena is a common problem in Earth science applications that can be addressed with geostatistics, where spatial correlations are used…
Using deep learning to integrate paleoclimate and global biogeochemistry over the Phanerozoic Eon
Abstract. Databases of 3D paleoclimate model simulations are increasingly used within global biogeochemical models for the Phanerozoic Eon. This improves the accuracy of the surfa…
Global mass fixer algorithms for conservative tracer transport in the ECMWF model
Abstract. Various mass fixer algorithms (MFAs) have been implemented in the Integrated Forecasting System (IFS) of the European Centre for Medium-Range Weather Forecasts (ECMWF) t…
Towards a more detailed representation of high-latitude vegetation in the global land surface model ORCHIDEE (ORC-HL-VE…
Abstract. Simulation of vegetation–climate feedbacks in high latitudes in the ORCHIDEE land surface model was improved by the addition of three new circumpolar plant functional ty…
Regional evaluation of the performance of the global CAMS chemical modeling system over the United States (IFS cycle 47…
Abstract. The Copernicus Atmosphere Monitoring Service (CAMS) provides routine analyses and forecasts of trace gases and aerosols on a global scale. The core is the European Centr…
The Dynamics and Variability Model Intercomparison Project (DynVarMIP) for CMIP6: assessing the stratosphere–tropospher…
Abstract. Diagnostics of atmospheric momentum and energy transport are needed to investigate the origin of circulation biases in climate models and to understand the atmospheric r…
Constraining the strength of the terrestrial CO <sub>2</sub> fertilization effe…
Abstract. Earth system models (ESMs) explicitly simulate the interactions between the physical climate system components and biogeochemical cycles. Physical and biogeochemical asp…
Review of climate simulation by Simple Climate Models
Abstract. Simple Climate Models (SCMs) are a key tool in climate research, enabling the rapid exploration of climate responses beyond the reach of more complex models and aiding i…
Implementation of a sigma coordinate system in PALM-Sigma v1.0 (based on PALM v21.10) for LES study of the marine atm…
Abstract. In large-eddy simulation studies of the marine atmospheric boundary layer, wind-wave interactions are often oversimplified using wall-stress models parameterized by roug…
Enabling fast greenhouse gas emissions inference from satellites with GATES: a Graph-Neural-Network Atmospheric Trans…
Abstract. Atmospheric observation-based “inverse” greenhouse gas flux estimates are increasingly important to evaluate national inventories. A dramatic improvement in “top-down” f…
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