Flow‐directed PCA for monitoring networks

Autor:	Gallacher, K., Miller, C., Scott, E. M., Willows, R., Pope, L., Douglass, J.
Jazyk:	angličtina
Rok vydání:	2016
Předmět:	PCA connected monitoring networks flow direction Research Articles Research Article
Zdroj:	Environmetrics
ISSN:	1099-095X 1180-4009
Popis:	Measurements recorded over monitoring networks often possess spatial and temporal correlation inducing redundancies in the information provided. For river water quality monitoring in particular, flow-connected sites may likely provide similar information. This paper proposes a novel approach to principal components analysis to investigate reducing dimensionality for spatiotemporal flow-connected network data in order to identify common spatiotemporal patterns. The method is illustrated using monthly observations of total oxidized nitrogen for the Trent catchment area in England. Common patterns are revealed that are hidden when the river network structure and temporal correlation are not accounted for. Such patterns provide valuable information for the design of future sampling strategies.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=pmid________::769aa5c163317d2ee1797ded35795a06 http://europepmc.org/articles/PMC5347935 Zobrazit plný text záznamu Plný text