Benjamin A. Stephens
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View article: QuadTune version 1: a regional tuner for global atmospheric models
QuadTune version 1: a regional tuner for global atmospheric models Open
When a new, better-formulated physical parameterization is introduced into a global atmospheric model, aspects of the global model solutions are sometimes degraded. Then, in order to use the new global model to address science questions, t…
View article: QuadTune version 1: A regional tuner for global atmospheric models
QuadTune version 1: A regional tuner for global atmospheric models Open
When a new, better-formulated physical parameterization is introduced into a global atmospheric model, aspects of the global model solutions are sometimes degraded. Then, in order to use the new global model to address science questions, t…
View article: Methods to Evaluate Subcolumn Profiles Based on Two‐Point Diagnostics
Methods to Evaluate Subcolumn Profiles Based on Two‐Point Diagnostics Open
In atmospheric models, stochastic generation of subgrid‐scale profiles or “subcolumns” has been used for a variety of purposes. Such subcolumns can be generated from subgrid probability density functions (PDFs) at different vertical levels…
View article: Data for "Methods to evaluate subcolumn profiles based on two-point diagnostics"
Data for "Methods to evaluate subcolumn profiles based on two-point diagnostics" Open
Description of included files WRF code base (wrf-clubb-silhs.tar.gz) This WRF repo (using the stephens_et_al_2022_lidar_paper branch) can be used to generate both the high-resolution reproductions of LASSO runs with 60-second snapshot outp…
View article: Dataset and code for "A parameterization of non-hydrostatic pressure transport terms in second- and third-order turbulence equations"
Dataset and code for "A parameterization of non-hydrostatic pressure transport terms in second- and third-order turbulence equations" Open
Description of included files: Cloud Layers Unified By Binormals (CLUBB) content The zipped up "clubb_release.tar.gz" folder contains the CLUBB code base used to generate the simulations used in this paper. The ifort compiler was used to p…
View article: Dataset and code for "A parameterization of non-hydrostatic pressure transport terms in second- and third-order turbulence equations"
Dataset and code for "A parameterization of non-hydrostatic pressure transport terms in second- and third-order turbulence equations" Open
Description of included files: Cloud Layers Unified By Binormals (CLUBB) content The zipped up "clubb_release.tar.gz" folder contains the CLUBB code base used to generate the simulations used in this paper. The ifort compiler was used to p…
View article: Abrupt transitions in an atmospheric single-column model with weak temperature gradient approximation
Abrupt transitions in an atmospheric single-column model with weak temperature gradient approximation Open
We document a feature of the tropical atmosphere that could be relevant to episodes of abrupt transitions in global climate that regularly occurred during the last ice age. Using a single-column model (SCM) incorporating the weak temperatu…
View article: Data for "Abrupt transitions in an atmospheric single-column model with weak temperature gradient approximation"
Data for "Abrupt transitions in an atmospheric single-column model with weak temperature gradient approximation" Open
These are the main output files for the experiment studied in the paper "Abrupt transitions in a single-column model with weak temperature gradient approximation". File names and descriptions are as follows: hysteresis.mat: A MATLAB file t…
View article: Data for "Abrupt transitions in an atmospheric single-column model with weak temperature gradient approximation"
Data for "Abrupt transitions in an atmospheric single-column model with weak temperature gradient approximation" Open
These are the main output files for the experiment studied in the paper "Abrupt transitions in a single-column model with weak temperature gradient approximation". File names and descriptions are as follows: hysteresis.mat: A MATLAB file t…
View article: Abrupt transitions in an atmospheric single-column model with weak temperature gradient approximation
Abrupt transitions in an atmospheric single-column model with weak temperature gradient approximation Open
We document a feature of the tropical atmosphere that could be relevant to episodes of abrupt transitions in global climate that regularly occurred during the last ice age. Using a single-column model incorporating the weak temperature gra…
View article: Data for "Abrupt transitions in an atmospheric single-column model with weak temperature gradient approximation"
Data for "Abrupt transitions in an atmospheric single-column model with weak temperature gradient approximation" Open
These are the main output files for the experiment studied in the paper "Abrupt transitions in a single-column model with weak temperature gradient approximation". File names and descriptions are as follows: hysteresis.mat: A MATLAB file t…
View article: Data for "Abrupt transitions in an atmospheric single-column model with weak temperature gradient approximation"
Data for "Abrupt transitions in an atmospheric single-column model with weak temperature gradient approximation" Open
These are the main output files for the experiment studied in the paper "Abrupt transitions in a single-column model with weak temperature gradient approximation". File names and descriptions are as follows: hysteresis.mat: A MATLAB file t…
View article: Investigating a tropical atmospheric trigger for abrupt climate change
Investigating a tropical atmospheric trigger for abrupt climate change Open
Abrupt climate change is known to have occurred in the distant past and may be a possibility in the future. Dominant theories of abrupt change have located the trigger for such change in the North Atlantic Ocean, but some evidence suggests…
View article: Effect of Tropical Nonconvective Condensation on Uncertainty in Modeled Projections of Rainfall
Effect of Tropical Nonconvective Condensation on Uncertainty in Modeled Projections of Rainfall Open
We find that part of the uncertainty in the amplitude and pattern of the modeled precipitation response to CO2 forcing traces to tropical condensation not directly involved with parameterized convection. The fraction of tropical rainfall a…
View article: Vector field instability and the primordial tensor spectrum
Vector field instability and the primordial tensor spectrum Open
It has recently been shown that the presence of a spectator pseudoscalar field, coupled to photons through a Chern-Simons term, can amplify the primordial tensor spectrum without observationally disrupting the primordial scalar spectrum. T…