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Video från seminariet ; Statistical methods for evaluation of temporal trends in environmental data

Published: 16 September 2021

This is a recording from the seminar presented by Claudia von Brömssen at the 27th of August. It is part of Environmental Statistics - a Statistics@SLU seminar series about statistics for environmental monitoring and assessment.

Evaluation of temporal trends in environmental data

Claudia von Brömssen, SLU, is presenting Statistical methods for evaluation of temporal trends in environmental data.

This seminar is part of Environmental Statistics – a Statistics@SLU seminar series

References:

Mann-Kendall tests:

Hirsch, R.M., Slack, J.R., 1984. A Nonparametric Trend Test for Seasonal Data With Serial Dependence. Water Resour. Res. 20, 727–732. https://doi.org/10.1029/WR020i006p00727

With covariates:

Libiseller, C., Grimvall, A., 2002. Performance of partial Mann-Kendall tests for trend detection in the presence of covariates. Environmetrics 13, 71–84. https://doi.org/10.1002/env.507

General:

Chandler, R.E., Scott, E.M., 2011. Statistical Methods for trend detection and analysis in the Environmental Sciences. John Wiley & Sons, Ltd.

GAM:

Wood, S.N., 2017. Generalized additive models: an introduction with R, Second edition. ed, Chapman & Hall/CRC texts in statistical science. CRC Press/Taylor & Francis Group, Boca Raton.

Joint trend lines over several sites/samples:

Pedersen, E.J., Miller, D.L., Simpson, G.L., Ross, N., 2019. Hierarchical generalized additive models in ecology: an introduction with mgcv. PeerJ 7, e6876. https://doi.org/10.7717/peerj.6876

Visualisation of trends for several series:

von Brömssen, C., Betnér, S., Fölster, J., Eklöf, K., 2021. A toolbox for visualizing trends in large-scale environmental data. Environ. Model. Softw. 136, 104949. https://doi.org/10.1016/j.envsoft.2020.104949

Introduction to quantile gam:

Fasiolo M., Wood S. N., Goude Y., Nedellec R., https://cran.r-project.org/web/packages/qgam/vignettes/qgam.html

Examples of GAM for trends:

Gavin Simpson: https://fromthebottomoftheheap.net/blog/

Simpson, G.L., 2018. Modelling palaeoecological time series using generalized additive models. https://doi.org/10.1101/322248

 


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