planetwater

ground- water, geo- statistics, environmental- engineering, earth- science

Archive for June, 2017

New Papers!

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I published two new papers recently! Find the titles and the links to more information below. Happy reading!

  1. Detecting and Modelling Structures on the Micro and the Macro Scales: Assessing Their Effects on Solute Transport Behaviour” – This paper sheds light onto a tricky issue: Is a spatial data-set stationary or not? This paper shows a method that can help to decide to delineate a boundary (“macroscale”) between regions that are at least somewhat more stationary than the entire domain. Furthermore, this paper
    • validates the algorithm based on a data-set where a boundary layer has previously been delineated;
    • demonstrates the effects of the macro structure and the smaller scale heterogeneity (“micro structure”) on solute transport behaviour; The micro structure is modelled by multivariate Gaussian and multivariate non-Gaussian structures.
  2. Estimating a Representative Value and Proportion of True Zeros for Censored Analytical Data with Applications to Contaminated Site Assessment” – True zeros such as no precipitation occur frequently in nature. This is one of the very few studies I know that treats those values statistically meaningfully and is based on a real-world data-set. We applied the methodology on a data-set related to contaminated sites, but this has implications everywhere else.

Written by Claus

June 29th, 2017 at 9:03 pm

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Own Your Writing

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I just posted on claus-haslauer.de about “Own Your Writing!”.

In this post, I

  • discuss how important it is to own what you write, even if it comes at a cost: Knowing technology and money. Also, it seems like publishing has become more complicated than it needs to be on open solutions.
  • play with the new JSON-feed format (in python)
  • Written by Claus

    June 21st, 2017 at 9:48 am

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    Thresholds

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    In my work about spatial dependence, I do see that in different ranges of quantiles, the type of dependence can differ. More generally, this means that thresholds are an important characteristic of environmental systems.

    This is why I think this video that I noticed on kottke.org is so inspiring: sometimes something small leads to a big change — a “threshold” is “jumped over”:

    Written by Claus

    June 7th, 2017 at 3:37 pm

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