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Wild, M.* ; Behm, S.* ; Beck, C.* ; Cyrys, J. ; Schneider, A.E. ; Wolf, K. ; Haupt, H.*

Mapping the time-varying spatial heterogeneity of temperature processes over the urban landscape of Augsburg, Germany.

Urban Climate 43:101160 (2022)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Generating high-resolution spatial interpolations of temperature processes is a vital task for studying urban climate anomalies and their various consequences. Such processes often constitute a complex and demanding data environment: Anthropogenic and natural conditions of the urban landscape result in anisotropic spatial dependencies and trend patterns that often vary in diurnal and seasonal cycles. Two-step geostatistical methods such as residual kriging take spatial heterogeneity into account but ignore the temporal dimension, which can result in a significant loss of potentially useful information. In this study, we propose nonparametric spatial detrending to obtain a process that fulfills the assumptions of ordinary kriging. In our application to urban air temperature series from monitoring sites distributed over the urban and suburban area of Augsburg, Germany, we provide an in-depth analysis of time-varying spatial heterogeneity. By using sub-sampling to account for diurnal, seasonal, and spatial trends, we produce interpolation maps with a resolution of 100 m × 100 m. The validation in a narrower sense is based on cross-validation and shows favorable behavior of the proposed method even when sub-samples are neglected. The broader sense validation is based on hold-out monitoring sites and provides further empirical support for our proposal.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Kriging ; Nonparametric Regression ; Seasonal And Diurnal Cycles ; Spatial Trend Modelling ; Urban Air Temperature ; Urban Heat Island
ISSN (print) / ISBN 2212-0955
e-ISSN 2212-0955
Zeitschrift Urban Climate
Quellenangaben Band: 43, Heft: , Seiten: , Artikelnummer: 101160 Supplement: ,
Verlag Elsevier
Verlagsort Amsterdam [u.a.]
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Epidemiology II (EPI2)
Förderungen Helmholtz Climate Initiative REKLIM