Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Tornado Occurrences in the United States: A Spatio-Temporal Point Process Approach

Full text
Author(s):
Valente, Fernanda [1] ; Laurini, Marcio [1]
Total Authors: 2
Affiliation:
[1] FEARP USP, Av Bandeirantes, 3900 Vila Monte Alegre, BR-14040905 Ribeirao Preto, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: ECONOMETRICS; v. 8, n. 2 JUN 2020.
Web of Science Citations: 0
Abstract

In this paper, we analyze the tornado occurrences in the Unites States. To perform inference procedures for the spatio-temporal point process we adopt a dynamic representation of Log-Gaussian Cox Process. This representation is based on the decomposition of intensity function in components of trend, cycles, and spatial effects. In this model, spatial effects are also represented by a dynamic functional structure, which allows analyzing the possible changes in the spatio-temporal distribution of the occurrence of tornadoes due to possible changes in climate patterns. The model was estimated using Bayesian inference through the Integrated Nested Laplace Approximations. We use data from the Storm Prediction Center's Severe Weather Database between 1954 and 2018, and the results provided evidence, from new perspectives, that trends in annual tornado occurrences in the United States have remained relatively constant, supporting previously reported findings. (AU)

FAPESP's process: 18/04654-9 - Time series, wavelets and high dimensional data
Grantee:Pedro Alberto Morettin
Support type: Research Projects - Thematic Grants