TY  - JOUR
AU  - Barbosa, Susana
AU  - Huisman, Johan Alexander
AU  - Azevedo, Eduardo Brito
TI  - Meteorological and soil surface effects in gamma radiation time series - Implications for assessment of earthquake precursors
JO  - Journal of environmental radioactivity
VL  - 195
SN  - 0265-931X
CY  - New York, NY [u.a.]
PB  - Elsevier
M1  - FZJ-2018-05754
SP  - 72 - 78
PY  - 2018
AB  - Monitoring of environmental radioactivity for the purpose of earthquake prediction requires the discrimination of anomalies of non-tectonic origin from seismically-induced anomalies. This is a challenging task as time series of environmental radioactivity display a complex temporal pattern reflecting a wide range of different physical processes, including meteorological and surface effects. The present study is based on the detailed time series of gamma radiation from the Eastern North Atlantic (ENA) site in the Azores, and on very high resolution precipitation intensity and soil moisture time series. The results show that an abrupt shift in the average level of the gamma radiation time series previously reported as a potential earthquake precursor can also be explained by a corresponding abrupt change in soil moisture. It was concluded that the reduction of false positive earthquake precursors requires the detailed assessment of both precipitation and soil moisture conditions at high temporal resolution.
LB  - PUB:(DE-HGF)16
C6  - pmid:30292909
UR  - <Go to ISI:>//WOS:000450134900010
DO  - DOI:10.1016/j.jenvrad.2018.09.022
UR  - https://juser.fz-juelich.de/record/856108
ER  -