2019-frost-penetration-soils

Frost penetration in alpine solifluction lobes dependig on relative water content

The aim of this little project is to visualize data from field measurements in a video or a GIF.

A scheme of a solifluction lobe (.png) is colorized depending on measurement values of volumetric water content and temperature below ground.

Prerequisits

• Python 3.7
• Have the file "Schema Blauberg weiss clean.png" in the working directory
• Have the file "alldata_utf8_ClShort.csv" also in the working directory
• Install dependencies:
  • matplotlib
  • pandas
  • numpy
  • Pillow
  • imageio
  • opencv-python

How to use

• start with "PrepFrames.py"

• definde the timeframe of the data to be visualized in line 21 and line 22

  • it is best to choose within:

    Start	End
    01.09.2016	30.06.2017

    The default is set from 23.05.2016 16:00 to 04.06.2016 16:00 (289 hours / frames) This will make a very short video of nine seconds.

    One image will be created for every hour within the timeframe unless defined differently (see section "What can be adjusted")

• there are three scripts

  • PrepFrames.py prepares frames to be packed in a video or gif with the other scripts
  • makeVideo.py packs the beforehand generated images (.png) to a video
  • makeGIF.py packs the beforehand generated images to a gif file

• if the video or the gif script is run subsequently to PrepFrames in the same console, the elevation will remain set. If a different console is used, the user is asked to define the elevation.

• The scripts can somehow not be executed entirely via the "run" button in PyCharm. Select all (Ctrl + A) and "run" works however.

Results

• you will find a folder with images in the working directory (one image each hour by default)
• a video file or GIF file will be saved in the working directory

What can be adjusted

• PrepFrames.py:
  • line 21 and line 22: time (default is 23.05.2016 16:00 to 04.06.2016 16:00)
  • line 25: elevation (dafault is 2400)
  • line 66: hours to skip (default is 1)
• makeVideo.py:
  • line 33: frames per second (default is 30)
• makeGIF.py:
  • line 34: duration: how many seconds one frame persists (default is 0.05)
  • line 34: loop: how many times the gif repeats (default is 0, infinite repetition)

Authors: Martina Hasler, Lukas Munz