Open AccessMaximum and minimum temperatures in the United States: Time trends and persistence
Author(s) -
GilAlana Luis A.
Publication year - 2018
Publication title -
atmospheric science letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.951
H-Index - 45
ISSN - 1530-261X
DOI - 10.1002/asl.810
Subject(s) - detrended fluctuation analysis , long memory , persistence (discontinuity) , series (stratigraphy) , statistics , mathematics , climatology , econometrics , environmental science , geology , geotechnical engineering , volatility (finance) , paleontology , geometry , scaling
We investigate the time trends in the maximum and minimum temperatures in the United States from 1895 to 2017 using techniques that allow for fractional integration in the detrended series. In doing so we get more accurate estimates of the trends than those obtained using standard methods that impose either stationarity I(0) or nonstationarity I(1). Our results reveal evidence of significant positive trends in both maximum and minimum temperatures, while the difference between them show a significant negative trend as a consequence of the higher increase in the minimum temperatures. Evidence of stationary long memory behavior is also found in the three series examined.