CRAN/E | sarp.snowprofile.alignment

sarp.snowprofile.alignment

Snow Profile Alignment, Aggregation, and Clustering

Installation

About

Snow profiles describe the vertical (1D) stratigraphy of layered snow with different layer characteristics, such as grain type, hardness, deposition date, and many more. Hence, they represent a data format similar to multivariate time series containing categorical, ordinal, and numerical data types. Use this package to align snow profiles by matching their individual layers based on Dynamic Time Warping (DTW). The aligned profiles can then be assessed with an independent, global similarity measure that is geared towards avalanche hazard assessment. Finally, through exploiting data aggregation and clustering methods, the similarity measure provides the foundation for grouping and summarizing snow profiles according to similar hazard conditions. In particular, this package allows for averaging large numbers of snow profiles with DTW Barycenter Averaging and thereby facilitates the computation of individual layer distributions and summary statistics that are relevant for avalanche forecasting purposes. For more background information refer to Herla, Horton, Mair, and Haegeli (2021) doi:10.5194/gmd-14-239-2021, and Herla, Mair, and Haegeli (2022) doi:10.5194/tc-16-3149-2022.

Citation sarp.snowprofile.alignment citation info
avalancheresearch.ca/

Key Metrics

Version 1.2.2
R ≥ 2.10
Published 2024-02-08 242 days ago
Needs compilation? no
License GPL (≥ 3)
CRAN checks sarp.snowprofile.alignment results
Language en-US

Downloads

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Maintainer

Maintainer

Florian Herla

Authors

Florian Herla

aut / cre

Pascal Haegeli

aut

Simon Horton

aut

Paul Billecocq

aut

SFU Avalanche Research Program

fnd

Material

README
NEWS
Reference manual
Package source

Vignettes

Averaging of profiles and retrieval of distributions
Technical details: layer matching
Basic workflow of layer matching and profile alignment

macOS

r-release

arm64

r-oldrel

arm64

r-release

x86_64

Windows

r-devel

x86_64

r-release

x86_64

r-oldrel

x86_64

Old Sources

sarp.snowprofile.alignment archive

Depends

R ≥ 2.10
sarp.snowprofile ≥ 1.2.1

Imports

dtw
grid
data.table

Suggests

knitr
rmarkdown
shiny
dendextend
smacof
testthat
progress

Reverse Suggests

sarp.snowprofile