This R-package is a collection of function which serve as a basis for hydro-gravitational projects. It evolved and grew throughout my PhD and hopefully helps others when dealing with this kind of data and projects. It provides a structure for the aspects of setups, calculations, pre- and post-processing, concerning hydro-gravitational projects:
- model domain preparation using DEMs (absolute UTM coordinates or relative coordinates)
- generating gravity component grids (circle, rectangular)
- remove effects of gravimeter pillar (circle, rectangular)
- determine conversion factor between gravity <> water (based on topography)
- forward modeling of gravity from water storage changes
Furthermore, this package consts the basis for further research projects which include coding in R, namely:
- Estimating and correcting gravity data for the umbrella effect
- Hydro-gravitational infiltration modeling
- Synthetic uncertainty analysis of standard gravity corrections
I am interested and open for further development and colaboration. For bug fixes, comments or further development please contact: mreich@posteo.de or use github issues.
-
Start R
-
Install package via devtools:
devtools::install_github("marcianito/HyGra") -
load package:
library(HyGra)
- r-base version 3.3.1
- following R-packages: devtools, dplyr, ggplot2, gstat, ptinpoly, raster, reshape2, viridis, zoo
- system libraries for rgdal and devtools
in debian install using:
apt-get update && apt-get install libgdal-dev libproj-dev libssl-dev
An example calculation, showing some of the capabilities, can be found in ./inst/extdata/example.r