Speeding R up on your computer by parallelized computations a - PowerPoint PPT Presentation

Feb 08, 2023 •28 likes •368 views

Speeding R up on your computer by parallelized computations a geostatistical case study Andreas Papritz Department of Environmental Systems Science, ETH Zurich Statistik Stadt Zrich papritz@env.ethz.ch outline motivating example:

Speeding R up on your computer by parallelized computations — a geostatistical case study Andreas Papritz Department of Environmental Systems Science, ETH Zurich Statistik Stadt Zürich papritz@env.ethz.ch
outline • motivating example: mercury soil contamination in Visp, Valais • geostatistics in a nutshell • case study: analysis of mercury topsoil content in Visp West • “embarrasingly” parallel computations in R • parallelizing computations for geostatistical analyses
mercury soil contamination in Visp
mercury soil contamination in Visp • Lonza Ltd operates since 1909 a chemical plant in Visp, Canton of Valais • mercury (Hg) used for many decades as catalyst in production of chemical compounds • Hg disposed as sewage into river Rhône by Grossgrundkanal (GGK)
situation Grossgrundkanal Lonza premises
mercury soil contamination in Visp • Hg soil pollution “discovered” in course of construction of motor- way (2007–2011) • historical study: dispersal of Hg contaminated sediments of GGK during maintenance until 1988 • since 2011 extensive soil pollution survey

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