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Showing 24701 to 24750 of 59105 works
Development of the Community Water Model (CWatM v1.04) – a high-resolution hydrological model for global and regional a…
Abstract. We develop a new large-scale hydrological and water resources model, the Community Water Model (CWatM), which can simulate hydrology both globally and regionally at diff…
Optimising urban measurement networks for CO <sub>2</sub> flux estimation: a hi…
Abstract. To design a monitoring network for estimating CO2 fluxes in an urban area, a high-resolution observing system simulation experiment (OSSE) is performed using the transpo…
NSOAS24: a new global marine gravity model derived from multi-satellite sea surface slopes
Abstract. Judging by the early release of the NSOAS22 model, there were some known issues, such as boundary connection problems in blockwise solutions and a relatively high noise …
Improvements in the Canadian Earth System Model (CanESM) through systematic model analysis: CanESM5.0 and CanESM5.1
Abstract. The Canadian Earth System Model version 5.0 (CanESM5.0), the most recent major version of the global climate model developed at the Canadian Centre for Climate Modelling…
Modeling the impacts of diffuse light fraction on photosynthesis in ORCHIDEE (v5453) land surface model
Abstract. Aerosol- and cloud-induced changes in diffuse light have important impacts on the global land carbon cycle, as they alter light distribution and photosynthesis in vegeta…
Overview of experiment design and comparison of models participating in phase 1 of the SPARC Quasi-Biennial Oscillation…
Abstract. The Stratosphere–troposphere Processes And their Role in Climate (SPARC) Quasi-Biennial Oscillation initiative (QBOi) aims to improve the fidelity of tropical stratosphe…
Validation of reactive gases and aerosols in the MACC global analysis and forecast system
Abstract. The European MACC (Monitoring Atmospheric Composition and Climate) project is preparing the operational Copernicus Atmosphere Monitoring Service (CAMS), one of the servi…
A reduced-order modeling approach to represent subgrid-scale hydrological dynamics for land-surface simulations: applic…
Abstract. Existing land surface models (LSMs) describe physical and biological processes that occur over a wide range of spatial and temporal scales. For example, biogeochemical a…
Implementation of higher-order vertical finite elements in ISSM v4.13 for improved ice sheet flow modeling over paleocl…
Abstract. Paleoclimate proxies are being used in conjunction with ice sheet modeling experiments to determine how the Greenland ice sheet responded to past changes, particularly d…
Increasing resolution and accuracy in sub-seasonal forecasting through 3D U-Net: the western US
Abstract. Sub-seasonal weather forecasting is a major challenge, particularly when high spatial resolution is needed to capture complex patterns and extreme events. Traditional Nu…
The Meridionally Averaged Model of Eastern Boundary Upwelling Systems (MAMEBUSv1.0)
Abstract. Eastern boundary upwelling systems (EBUSs) are physically and biologically active regions of the ocean with substantial impacts on ocean biogeochemistry, ecology, and gl…
CVPM 1.1: a flexible heat-transfer modeling system for permafrost
Abstract. The Control Volume Permafrost Model (CVPM) is a modular heat-transfer modeling system designed for scientific and engineering studies in permafrost terrain, and as an ed…
A vertical representation of soil carbon in the JULES land surface scheme (vn4.3_permafrost) with a focus on permafrost…
Abstract. An improved representation of the carbon cycle in permafrost regions will enable more realistic projections of the future climate–carbon system. Currently JULES (the Joi…
An improved and extended parameterization of the CO <sub>2</sub> 15 µm cooling …
Abstract. The radiative infrared cooling of CO2 in the middle atmosphere, where it emits under non-local thermodynamic equilibrium (non-LTE) conditions, is a crucial contribution …
T&C-CROP: representing mechanistic crop growth with a terrestrial biosphere model (T&C, v1.5) – model formulati…
Abstract. Cropland cultivation is fundamental to food security and plays a crucial role in the global water, energy, and carbon cycles. However, our understanding of how climate c…
The ABC-DA system (v1.4): a variational data assimilation system for convective-scale assimilation research with a stud…
Abstract. Following the development of the simplified atmospheric convective-scale “toy” model (the ABC model, named after its three key parameters: the pure gravity wave frequenc…
Porosity and permeability prediction through forward stratigraphic simulations using GPM™ and Petrel™: application in s…
Abstract. The forward stratigraphic simulation approach is applied to predict porosity and permeability distribution. Synthetic well logs from the forward stratigraphic model serv…
Improvements in the land surface configuration to better simulate seasonal snow cover in the European Alps with the CNR…
Abstract. Snow cover modeling remains a major challenge in climate and numerical weather prediction (NWP) models even in recent versions of high-resolution coupled surface–atmosph…
LB-SCAM: a learning-based method for efficient large-scale sensitivity analysis and tuning of the Single Column Atmosph…
Abstract. The single-column model, with its advantages of low computational cost and fast execution speed, can assist users in gaining a more intuitive understanding of the impact…
Cyclone generation Algorithm including a THERmodynamic module for Integrated National damage Assessment (CATHERINA 1.0)…
Abstract. Tropical cyclones are responsible for a large share of global damage resulting from natural disasters, and estimating cyclone-related damage at a national level is a cha…
High-performance software framework for the calculation of satellite-to-satellite data matchups (MMS version 1.2)
Abstract. We present a multisensor matchup system (MMS) that allows systematic detection of satellite-based sensor-to-sensor matchups and the extraction of local subsets of satell…
Short-term forecasting of regional biospheric CO <sub>2</sub> fluxes in Europe …
Abstract. Forecasting atmospheric CO2 concentrations on synoptic timescales (∼ days) can benefit the planning of field campaigns by better predicting the location of important gra…
The ACCENT-protocol: a framework for benchmarking and model evaluation
Abstract. We summarise results from a workshop on "Model Benchmarking and Quality Assurance" of the EU-Network of Excellence ACCENT, including results from other activities (e.g. …
Implementing marine organic aerosols into the GEOS-Chem model
Abstract. Marine-sourced organic aerosols (MOAs) have been shown to play an important role in tropospheric chemistry by impacting surface mass, cloud condensation nuclei, and ice …
ESP v2.0: enhanced method for exploring emission impacts of future scenarios in the United States – addressing spatial …
Abstract. The Emission Scenario Projection (ESP) method produces future-year air pollutant emissions for mesoscale air quality modeling applications. We present ESP v2.0, which ex…
An efficient method to generate a perturbed parameter ensemble of a fully coupled AOGCM without flux-adjustment
Abstract. We present a simple method to generate a perturbed parameter ensemble (PPE) of a fully-coupled atmosphere-ocean general circulation model (AOGCM), HadCM3, without requir…
Recovery of sparse urban greenhouse gas emissions
Abstract. To localize and quantify greenhouse gas emissions from cities, gas concentrations are typically measured at a small number of sites and then linked to emission fluxes us…
Sedapp v2021: a nonlinear diffusion-based forward stratigraphic model for shallow marine environments
Abstract. The formation of stratigraphy in shallow marine environments has long been an important topic within the geologic community. Although many advances have been made in the…
University of Warsaw Lagrangian Cloud Model (UWLCM) 1.0: a modern large-eddy simulation tool for warm cloud modeling wi…
Abstract. A new anelastic large-eddy simulation (LES) model with an Eulerian dynamical core and Lagrangian particle-based microphysics is presented. The dynamical core uses the mu…
Subsurface hydrological controls on the short-term effects of hurricanes on nitrate–nitrogen runoff loading: a case stu…
Abstract. When the nutrient level in the soil surpasses vegetation demand, nutrient losses due to surface runoff and subsurface leaching are the major reasons for the deterioratio…
Advanced climate model evaluation with ESMValTool v2.11.0 using parallel, out-of-core, and distributed computing
Abstract. Earth system models (ESMs) allow numerical simulations of the Earth's climate system. Driven by the need to better understand climate change and its impacts, these model…
Numerical coupling of aerosol emissions, dry removal, and turbulent mixing in the E3SM Atmosphere Model version 1 (EAMv…
Abstract. Part 1 (Wan et al., 2024) of this study discusses the motivation and empirical evaluation of a revision to the aerosol-related numerical process coupling in the atmosphe…
Implementation of a satellite-based tool for the quantification of CH <sub>4</sub> …
Abstract. Methane is the second-most important greenhouse gas after carbon dioxide and accounts for around 10 % of total European Union greenhouse gas emissions. Given that the at…
Development of a model framework for terrestrial carbon flux prediction: the Regional Carbon and Climate Analytics Tool…
Abstract. Wetlands play a pivotal role in carbon sequestration but emit methane (CH4), creating uncertainty in their net climate impact. Although process-based models offer mechan…
Towards an improved representation of carbonaceous aerosols over the Indian monsoon region in a regional climate model:…
Abstract. Mitigation of carbonaceous aerosol emissions is expected to provide climate and health co-benefits. The accurate representation of carbonaceous aerosols in climate model…
Assimilating compact phase space retrievals (CPSRs): comparison with independent observations (MOZAIC in situ and IASI …
Abstract. Assimilation of atmospheric composition retrievals presents computational challenges due to their high data volume and often sparse information density. Assimilation of …
Addressing challenges in uncertainty quantification: the case of geohazard assessments
Abstract. We analyse some of the challenges in quantifying uncertainty when using geohazard models. Despite the availability of recently developed, sophisticated ways to parameter…
Using terrestrial laser scanning to constrain forest ecosystem structure and functions in the Ecosystem Demography mode…
Abstract. Terrestrial biosphere models (TBMs) are invaluable tools for studying plant–atmosphere interactions at multiple spatial and temporal scales, as well as how global change…
Semi-Lagrangian transport of oxygen isotopes in polythermal ice sheets: implementation and first results
Abstract. Modelling the evolution of the Earth system on long timescales requires the knowledge and understanding of driving mechanisms, such as the hydrological cycle. This is do…
Development of a variational flux inversion system (INVICAT v1.0) using the TOMCAT chemical transport model
Abstract. We present a new variational inverse transport model, named INVICAT (v1.0), which is based on the global chemical transport model TOMCAT, and a new corresponding adjoint…
Sensitivity of aerosol radiative effects to different mixing assumptions in the AEROPT 1.0 submodel of the EMAC atmosph…
Abstract. The modelling of aerosol radiative forcing is a major cause of uncertainty in the assessment of global and regional atmospheric energy budgets and climate change. One re…
Verification of a non-hydrostatic dynamical core using the horizontal spectral element method and vertical finite diffe…
Abstract. The non-hydrostatic (NH) compressible Euler equations for dry atmosphere were solved in a simplified two-dimensional (2-D) slice framework employing a spectral element m…
On computation of Hough functions
Abstract. Hough functions are the eigenfunctions of the Laplace tidal equation governing fluid motion on a rotating sphere with a resting basic state. Several numerical methods ha…
"Gtool5": a Fortran90 library of input/output interfaces for self-descriptive multi-dimensional numerical data
Abstract. A Fortran90 input/output library, "gtool5", is developed for use with numerical simulation models in the fields of Earth and planetary sciences. The use of this library …
Quality assessment concept of the World Data Center for Climate and its application to CMIP5 data
Abstract. The preservation of data in a high state of quality which is suitable for interdisciplinary use is one of the most pressing and challenging current issues in long-term a…
Efficient modeling of sun/shade canopy radiation dynamics explicitly accounting for scattering
Abstract. The separation of global radiation (Rg) into its direct (Rb) and diffuse constituents (Rg) is important when modeling plant photosynthesis because a high Rd:Rg ratio has…
The ICON-based Earth System Model for climate predictions and projections (ICON XPP v1.0)
Abstract. We develop a new Earth System model configuration framed into the ICON architecture, which provides the baseline for the next generation of climate predictions and proje…
Aging and stress explain the earlier start of leaf senescence in trees in warmer years: translating the latest findings…
Abstract. Leaf senescence ends the growing season of deciduous trees, affecting the amount of atmospheric CO2 sequestered by forests. Therefore, some climate models integrate proj…
Presentation, calibration and testing of the DCESS II Earth system model of intermediate complexity (version 1.0)
Abstract. A new Earth system model of intermediate complexity, DCESS II, is presented that builds upon, improves and extends the Danish Center for Earth System Science (DCESS) Ear…
Quantifying the analysis uncertainty for nowcasting application
Abstract. This study proposes a method to quantify uncertainty represented by errors in very-high-resolution near-surface analysis, specifically for weather nowcasting application…
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