Spatial heterogeneity and partitioning of soil health indicators in the Northern Great Plains using self-organizing map and change point methods

Boluwade, Alaba

doi:10.1007/s12145-023-01007-6

Earth Sci Inform

2023

DOI: 10.1007/s12145-023-01007-6

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Spatial heterogeneity and partitioning of soil health indicators in the Northern Great Plains using self-organizing map and change point methods

Alaba Boluwade

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Stochastic modeling of spatial dependency structures of extreme precipitation in the Northern Great Plains using max-stable processes

Boluwade

2023

Journal of Water and Climate Change

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The objective of this study is to quantify the spatial dependency and trend of annual maxima precipitation (annual highest daily precipitation, from 1970 to 2020) across selected weather stations in the Nelson Churchill River Basin (NCRB) of North America. This study uses max-stable processes to examine spatial extremes of annual maxima precipitation. The generalized extreme value (GEV) parameters are expressed as simple linear combinations of geographical coordinates (i.e., longitude and latitude) and topography. The results show that topography, geographical coordinates, and time (as a temporal covariate) were important covariates in reproducing the stochastic extreme precipitation field using the spatial generalized extreme value (SPEV). The inclusion of time as a covariate further confirms the impacts of climate change on extreme precipitation in the NCRB. The fitted SPEV was used to predict the 25- and 50-year return period levels. The fitted Extremal-t max-stable process model captured the spatial dependency structure of the extreme precipitation in the NCRB. The study is relevant in quantifying the spatial dependency structure of extreme precipitation in the Northern Great Plains. The result will contribute as a decision-support system in climate adaptation strategies in the United States and Canada.

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Stochastic modeling of spatial dependency structures of extreme precipitation in the Northern Great Plains using max-stable processes

Boluwade

2023

Journal of Water and Climate Change

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Spatial heterogeneity and partitioning of soil health indicators in the Northern Great Plains using self-organizing map and change point methods

Cited by 1 publication

References 59 publications

Stochastic modeling of spatial dependency structures of extreme precipitation in the Northern Great Plains using max-stable processes

Stochastic modeling of spatial dependency structures of extreme precipitation in the Northern Great Plains using max-stable processes

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