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Release associated with 10.2138/gselements.19.5.296 publication. This repository hosts a notebook that implements the 0-D energy balance model of Pierrehumbert et al. (2011). It utilizes the Python script published by Pierrehumbert et al. (2011) which itself uses the ClimateUtilities modules. A run of the model with slightly modified variables is visualized in a simplified plot of just the upper and lower limb without showing the unstable branches. In addition, CO_2 decrease scenarios are shown (2 CO_2 halvings) starting at different initial global mean temperatures. These scenarios illustrate that the effect of a decrease in CO_2 (say driven by changing paleogeographic boundary conditions) on Earth's climate state will be quite different depending on the initial starting condition.more » « less
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This repository has code and data associated with research on the Miocene stratigraphy of the Berkeley Hills associated with the manuscript: Chronostratigraphy of Miocene strata in the Berkeley Hills (California Coast Range, USA) and the arrival of the San Andreas transform boundary Stacey H. Gerasimov, Eben B. Hodgin, James L. Crowley, Nicholas L. Swanson-Hysell The code folder contains Jupyter notebooks that utilize a Python kernel to visualize and analyze the data. TAS_plot.ipynb: plots the total alkali vs silica composition of samples composite_pystrat.ipynb: generates the composite stratigraphic column thicknesses date_bar_plots.ipynb: makes the date bar plots of CA-ID-TIMS U-Pb dates detrital_zircon_analysis.ipynb: conducts statistical analyses and generates visualizations of detrital zircon data from this study and others that are integrated for comparisonmore » « less
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This repository contains code and compiled data associated with two manuscripts developed for the Geological Society of America Memoir Laurentia: Evolution of a Continent: The late Mesoproterozoic to early Neoproterozoic Grenvillian orogeny and the assembly of Rodinia: Turning point in the tectonic evolution of Laurentia Swanson-Hysell, N.L., Rivers, T. and van der Lee, S. Neoproterozoic of Laurentia Macdonald, F.M., Yonkee, A., Flowers, B., and Swanson-Hysell, N.L.more » « less
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