https://github.com/daniel-furman/ice-densification-research

All data and analyses to reproduce my ice material science research, as published in Penn Science: Furman and Goldsby, 2021.

https://github.com/daniel-furman/ice-densification-research

Science Score: 26.0%

This score indicates how likely this project is to be science-related based on various indicators:

  • CITATION.cff file
  • codemeta.json file
    Found codemeta.json file
  • .zenodo.json file
  • DOI references
    Found 4 DOI reference(s) in README
  • Academic publication links
  • Committers with academic emails
  • Institutional organization owner
  • JOSS paper metadata
  • Scientific vocabulary similarity
    Low similarity (5.4%) to scientific vocabulary

Keywords

compaction dislocation-creep firn grain-size ice-sheets material-science mechanism-maps rheology scientific-computing sympy-library
Last synced: 5 months ago · JSON representation

Repository

All data and analyses to reproduce my ice material science research, as published in Penn Science: Furman and Goldsby, 2021.

Basic Info
Statistics
  • Stars: 0
  • Watchers: 1
  • Forks: 0
  • Open Issues: 0
  • Releases: 0
Topics
compaction dislocation-creep firn grain-size ice-sheets material-science mechanism-maps rheology scientific-computing sympy-library
Created over 5 years ago · Last pushed almost 5 years ago
Metadata Files
Readme License

README.md

The Rheological Behavior of Firn: Experimental Observations of Dislocation Creep via Grain Boundary Sliding

How does grain size, strain state, and microstructure influence the rheological behavior of ice compaction among glaciers and ice sheets?

Firn_notebook.ipynb


Experimental results | Mechanism map for firn
:-------------------------------------------:|:------------------------------: |

Key Points


  • Constant stress laboratory experiments were performed on H20 ice powder samples with roughly uniform grain size varying from 5 to 550 micrometers (µm) in radius.
  • Two rheologically-distinct creep regimes emerged, characterized by their grain size sensitivity and stress dependence: dislocation creep (n ~ 3.7, p ~ 0) and disGBS (n ~ 1.6, p ~ 0.9).
  • Flow laws resolved the disGBS mechanism as predominantly rate-limiting for natural conditions, such as in glaciers and ice sheets.

Data


Output from compaction tests (compaction.csv) and pressure-density profiles (site-name.csv) are contained in the data/ subfolder.

Paper Figures


Figure 1: From (a) Breant et al. (2017) (their Figure 3) and (b) Faria et al. (2014) (their Figure 7).

Figure 2: Photographs taken in the laboratory and diagram made with PowerPoint

Figure 3: flow_law_fiting.py

Figure 4: mechanism_maps.py

Table S1: calc_dens_rates.py

Workflow


The programming workflow is available in Firn_notebook.ipynb, where each .py script is ran in an easy to follow sequence.

Owner

  • Name: Daniel Furman
  • Login: daniel-furman
  • Kind: user
  • Location: San Francisco
  • Company: @twosixcapital

Master’s student, UC Berkeley School of Information. University of Pennsylvania alum. DS @twosixcapital. Prev MLE @understory.ai.

GitHub Events

Total
Last Year

Committers

Last synced: 11 months ago

All Time
  • Total Commits: 137
  • Total Committers: 1
  • Avg Commits per committer: 137.0
  • Development Distribution Score (DDS): 0.0
Past Year
  • Commits: 0
  • Committers: 0
  • Avg Commits per committer: 0.0
  • Development Distribution Score (DDS): 0.0
Top Committers
Name Email Commits
Daniel Furman d****n@g****m 137