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• 0105 earth and related environmental sciences close

This is the first release of the source-code and scripts for the paper "A matter of ephemerality. The study of Kel Tadrart Tuareg (SW Libya) campsites via quantitative spatial analysis " authored by Biaggetti, S., Alcaina-Mateos,J., and Crema E.R after the peer-review process.

We introduce hankl, a lightweight Python implementation of the FFTLog algorithm for Cosmology. The FFTLog algorithm is an extension of the usual Fast Fourier Transform (FFT) for logarithmically spaced periodic sequences. It can be used to efficiently compute Hankel transformations which are paramount for many modern cosmological analyses that are based on the power spectrum or the 2-point correlation function multipoles. The code is well-tested, open source, and publicly available at https://github.com/minaskar/hankl. {"references": ["Hamilton, AJS (2000). Uncorrelated modes off the non-linear power spectrum. Monthly Notices of the Royal Astronomical Society, 312(2), 257-284", "Talman, James D (1978). Numerical Fourier and Bessel transforms in logarithmic variables. Journal of computational physics, 29(1), 35-48"]} https://github.com/minaskar/hankl

################################################################### ################################################################### #-----Landslides length and width estimation-v-01------------------ ################################################################### ################################################################### # # # The self-explanatory R script performs the analysis of # landslide flow direction using 2 steps: # 1. Generate the minimum-area oriented bounding box for every # landslide polygon, and the corner points and midpoints for # the bbox sides; add altitudes for the midpoints and compute # the square of the difference raised to the power of two. # 2. Crop the DEM and compute flow length; extract the maximum # slope length. # The landslide width and length are then estimated based on # the oriented along the flow direction bounding box. # Please cite the article bellow if you use this script. # Niculita Mihai, 2016, Automatic landslide length and width # estimation based on the geometric processing of the bounding # box and the geomorphometric analysis of DEMs, Natural Hazards # and Earth System Science, 16, 1-10, doi:10.5194/nhess-16-1-2016 # !!! ATENTION !!! slope length is a computational demanding # operation so if you can please insert the slope length as a # column in the landslide inventory shapefile (slMFD field). # *please also add an id field. # *see the attached shapefiles for a reference on the script # variables and use them to format your data. # *modify accordingly for any change in the input data. # ###################################################################

Minor updates to SpecObj datamodel. DEIMOS slitmask slurping in place!