77 Works

A real-option farm-level model on investment in perennial energy crops under risk considerations

Alisa Spiegel, Wolfgang Britz & Robert Finger
The stochastic dynamic optimization model documented in here simulates decisions of an arable farm with respect to long-term investment based on a compound American option. The implemented application is an investment in short-rotation coppice (SRC). SRC uses fast-growing trees that, once they are set-up, are coppiced several times and finally cleared-up. Time and scale of SRC introduction, intermediate harvest quantities, and final reconversion are flexible and constitute decision variables along with cropping shares for competing...

Bio-economic model on weed management in maize production

Thomas Böcker, Wolfgang Britz & Robert Finger
The bio-economic model calculates optimal weed control strategies for cultivation of silage maize in North-Rhine-Westphalia and can be used to simulate agri-environmental policy scenarios such as a glyphosate ban. The model is described in detail in the following article: Böcker, T., Britz, W., Finger, R. (2017). Modelling the effects of a glyphosate ban on weed management in silage maize production. Ecological Economic.

Shifting patterns of oil palm driven deforestation in Indonesia and implications for zero-deforestation commitments (Dataset)

K.G. Austin, A. Mosnier, J. Pirker, I. McCallum, S. Fritz & P.S. Kasibhatla
This dataset contains maps of industrial oil palm plantations in Indonesia for the years 1995, 2000, 2005, 2010, 2015. This dataset can be accessed and displayed using any standard GIS software. It is available in GeoTIFF format and unprojected WGS 84 Datum with a cell size of 0.002277 degrees (approximately 30 meters).

Ella V3.1 Morphed to BMI of 26 kg/m^2

IT'IS Foundation

Isoprene Oxidation Model

Kelvin Bates & Paul Wennberg
Isoprene carries approximately half of the flux of non-methane volatile organic carbon emitted to the atmosphere by the biosphere. Accurate representation of its oxidation rate and products is essential for quantifying its influence on the abundance of the hydroxyl radical (OH), nitrogen oxide free radicals (NOx), ozone (O3), and, via the formation of highly oxygenated compounds, aerosol. We present a review of recent laboratory and theoretical studies of the oxidation pathways of isoprene initiated by...

Flow-line model results for 2 trajectories on Larsen C Ice Shelf

Suzanne Bevan & Adrian Luckman
The datasets are output from a flow-line model designed to estimate the age and surface origin for various ice bodies identified within hot-water drilled boreholes on Larsen C Ice Shelf (Hubbard et al., 2016, Ashmore et al., 2017). Two trajectories, based on remotely sensed velocities, allow surface fluxes from a regional climate model to be accumulated and advected down flow from selected points on the shelf. Vertical strain rates are taken into account, and surface...

Fats 3.0 Morphed 96kg 1.82m

IT'IS Foundation
3D human model

MODFLOW model used to simulate multiple-well aquifer tests and characterize hydraulic properties of volcanic rocks in Pahute Mesa

C. Amanda Garcia, Tracie R Jackson & Keith J Halford
An improved understanding of groundwater flow and radionuclide migration downgradient from underground nuclear-testing areas at Pahute Mesa, Nevada National Security Site, requires accurate subsurface hydraulic characterization. To improve conceptual models of flow and transport in the complex hydrogeologic system beneath Pahute Mesa, the U.S. Geological Survey characterized bulk hydraulic properties of volcanic rocks using an integrated analysis of 16 multiple-well aquifer tests. Single-well aquifer-test analyses provided transmissivity estimates at pumped wells. Transmissivity estimates ranged from...

The Extension for Geosciences (EFG) of the Access to Biological Collection Data (ABCD) schema

W. Kiessling, C. Copp, A. Rissoné, M. Döring & H. Mewis
ABCDEFG (Access to Biological Collection Databases Extended for Geosciences) is an XML-Schema (Extensible Markup Language) developed for the usage with paleontological, mineralogical and geological digitalized collection data. It extends the ABCD-XML-Schema (Access to Biological Collection Databases) used by GBIF (Global Biodiversity Iformation Facility; https://www.gbif.org). The ABCDEFG-XML-Schema is used to map data sources with individual data models to a standardized data schema with well documented terms and descriptions.

Physics-based numerical circulation model outputs of ocean surface circulation during the 2010-2013 summer coral-spawning seasons in Maui Nui, Hawaii, USA

Curt Storlazzi, Maarten Van Ormondt, Yi-Leng Chen & Edwin P.L. Elias
Here we present surface current results from a physics-based, 3-dimensional coupled ocean-atmosphere numerical model that was generated to understand coral larval dispersal patterns in Maui Nui, Hawaii, USA. The model was used to simulate coral larval dispersal patterns from a number of existing State-managed reefs and large tracks of reefs with high coral coverage that might be good candidates for marine-protected areas (MPAs) during 8 spawning events during 2010-2013. The goal of this effort is...

SUTRA model used to evaluate the role of uplift and erosion in the persistence of saline groundwater in the shallow subsurface

Richard M. Yager, Clifford I Voss & Ward E. Sandford
A modified version of the three-dimensional, variable-density solute-transport model (SUTRA) was developed to simulate the effects of erosion and uplift on the flushing of brine with meteoric water in Permian through Mississippian rocks of the Appalachian Plateaus. The model was run in 10-Ma transient simulations for a range of values of permeability and anisotropy. Model results indicate that the depth of shallow Paleozoic brine in the Appalachian Plateaus is controlled by the flushing rate of...

In silico structural model of OB-fold domains 3 from Replication Protein A1 from Trypanosoma cruzi

Fernandes, Carlos Alexandre Henrique;Matioli, Fabio Filippi;Fontes, Marcos Roberto De Mattos;Pavani, Raphael De Souza;Elias, Maria Carolina

Monarch threats code

Wayne E Thogmartin
Monarch treats code

Single amino acid substitutions in the selectivity filter render NbXIP1;1α aquaporin water permeable - Wild Type

Ampah-Korsah, Henry;Sonntag, Yonathan;Engfors, Angelica;Kirscht, Andreas;Kjellbom, Per;Johanson, Urban

Ella V3.1 Morphed to BMI of 30 kg/m^2

IT'IS Foundation

Clinical hyper-contractility caused by hypertrophic cardiomyopathy mutations may be primarily a result of shifting the equilibrium from myosin heads in an off-state toward those in an on-state

Spudich, James A;Nag, Suman;Trivedi, Darshan V.;Sarkar, Saswata S.;Adhikari, Arjun S.;Sunitha, Margaret S.;Sutton, Shirley;Ruppel, Kathleen M.

Single amino acid substitutions in the selectivity filter render NbXIP1;1α aquaporin water permeable - Mutant 4

Ampah-Korsah, Henry;Sonntag, Yonathan;Engfors, Angelica;Kirscht, Andreas;Kjellbom, Per;Johanson, Urban

BEWARE database: A Bayesian-based system to assess wave-driven flooding hazards on coral reef-lined coasts

Stuart G. Pearson, Curt Storlazzi, Ap R. Van Dongeren, Marion F.S. Tissier & Ad J.H.M. Reniers
A process-based wave-resolving hydrodynamic model (XBeach Non-Hydrostatic, XBNH) was used to create a large synthetic database for use in a Bayesian Estimator for Wave Attack in Reef Environments (BEWARE), relating incident hydrodynamics and coral reef geomorphology to coastal flooding hazards on reef-lined coasts. Building on previous work, BEWARE improves system understanding of reef hydrodynamics by examining the intrinsic reef and extrinsic forcing factors controlling runup and flooding on reef-lined coasts. The Bayesian estimator has high...

Flow-line model code for accumulation of ice along velocity-based trajectories

Suzanne Bevan & Adrian Luckman
The flow-line model was designed to enable estimation of the age and surface origin for various ice bodies identified within hot-water drilled boreholes on Larsen C Ice Shelf. Surface fluxes are accumulated, converted to thicknesses, and advected down flow from a fixed number of selected points. The model requires input datasets of surface mass balance, surface velocity, vertical strain rates, ice-shelf thickness, and a vertical density profile. This model is part of a larger project....

Near-surface wind fields for San Francisco Bay--historical and 21st-century projected time series

Andrea O'Neill, Li H. Erikson & Patrick Barnard
To support Coastal Storm Modeling System (CoSMoS) in the San Francisco Bay (v2.1), time series of historical and 21st-century near-surface wind fields (eastward and northward wind arrays) were simulated throughout the Bay. While global climate models (GCMs) provide useful projections of near-surface wind vectors into the 21st century, resolution is not sufficient enough for use in regional wave modeling projects, such as CoSMoS. Short-duration high wind speeds, on the order of hours, are of key...

MODFLOW-NWT model used to evaluate effects of complexity on head and flow calibration in the Fox-Wolf-Peshtigo watersheds, Wisconsin.

Paul Juckem, Brian R. Clark & Daniel T. Feinstein
This data release contains three groundwater-flow models of north-eastern Wisconsin, USA, that were developed with differing levels of complexity to provide a framework for subsequent evaluations of the effects of process-based model complexity on estimates of groundwater age distributions for withdrawal wells and streams. Preliminary assessments, which focused on the effects of model complexity on simulated water levels in the glacial aquifer system, illustrate that simulation of vertical gradients using multiple model layers improves simulated...

GSFLOW model simulations used to evaluate the impact of irrigated agriculture on surface water groundwater interaction

Hedeff I. Essaid, Rodney Caldwell & Jim Constantz
Watershed-scale coupled surface water (SW) groundwater (GW) flow modeling was used to examine changes in streamflow and SW GW interaction resulting from irrigation and associated SW diversions and GW pumping. The U.S. Geological Survey (USGS) model GSFLOW, an integration of the USGS Precipitation-Runoff Modeling System (PRMS) and the Modular Ground-Water Flow Model (MODFLOW), was utilized for this effort. Processes represented in the model include daily rain, snowfall, snowmelt, streamflow, surface runoff, interflow, infiltration, soil-zone evapotranspiration...

Model of the Preterm Eye

Nigel M Bolster
Model of the preterm eye between 28 and 52 weeks post-menstrual age. To generate models for ages within the aforementioned range execute the script contained in 'Preterm_eye.zpl' from 'Neonatal_Eye_Retinal Image_all_ages_GRIN_1.2_start__pos.zmx' in Zemax OpticStudio. To re-run the simulation that arrived at this model execute the script contained in 'Preterm_eye_lens_dims_sim.zpl' from 'Neonatal_Eye_Retinal Image_all_ages_GRIN_1.2_start__pos.zmx' using the merit function contained in 'Preterm_RE_Final.MF'. The model makes use of the code for the age-dependent model of the crystalline lens contained in...

Single amino acid substitutions in the selectivity filter render NbXIP1;1α aquaporin water permeable - Mutant 6

Ampah-Korsah, Henry;Sonntag, Yonathan;Engfors, Angelica;Kirscht, Andreas;Kjellbom, Per;Johanson, Urban

Isoprene Oxidation Model

Kelvin Bates & Paul Wennberg
A nearly complete gas-phase oxidation mechanism of isoprene and its major products is developed, incorporating results from recent laboratory studies as well as insights from theoretical approaches. The mechanism is compiled with the aim of both providing accurate atmospheric simulations of the impact of isoprene emissions on HOx and NOx free radical concentrations and to produce realistic yields of products known to be involved in condensed phase processes. A reliable representation of the role of...

Registration Year

  • 2017

Resource Types

  • Model