Results 1 to 10 of about 2,374,152 (284)

Linear Trend, HP Trend, and bHP Trend

open access: yesMathematics
The modelling of the trend component of economic time series has a long history, and the most primitive and popular model displays the trend as a linear function of time.
Hiroshi Yamada
doaj   +2 more sources

Can non-human primates extract the linear trend from a noisy scatterplot? [PDF]

open access: yesiScience
Summary: Recent studies showed that humans, regardless of age, education, and culture, can extract the linear trend of a noisy scatterplot. Although this capacity looks sophisticated, it may simply reflect the extraction of the principal trend of the ...
Lorenzo Ciccione   +4 more
doaj   +2 more sources

Graphical assessment of linear trend [PDF]

open access: yesStata Technical Bulletin, 1996
Joanne Garrett
core   +1 more source

Climate Change Characteristics of Coastal Wind Energy Resources in Zhejiang Province Based on ERA-Interim Data

open access: yesFrontiers in Physics, 2021
The reanalysis of sea surface wind speed is compared with the measured wind speed of five offshore wind towers in Zhejiang, China. The applicability of reanalysis data in the Zhejiang coastal sea surface and the climatic characteristics of sea surface ...
Nan Wang   +6 more
doaj   +1 more source

Increasing trend of extreme winter warm spells in China and the intra‐seasonal differences

open access: yesAtmospheric Science Letters, 2023
Based on the daily temperature observation data at 1992 stations in China, this study investigates the intra‐seasonal variations and trends of extreme warm spells during 1981–2022.
Ting Ding, Jing Gao, Hui Gao
doaj   +1 more source

ESTIMATION OF TENDENCIES IN THE HEIGHT OF THE SNOW COVERAT WEATHER STATIONS IN THE NORTHERN CAUCASUS

open access: yesНаука. Инновации. Технологии, 2022
Introduction. Against the background of global warming observed in recent decades, changes in all climatic characteristics are taking place. In the era of global warming, as the air temperature rises, the moisture content of the air masses also increases,
L. A. Kesheva
doaj   +1 more source

An efficient modification to diagonal systematic sampling for finite populations

open access: yesAIMS Mathematics, 2021
This paper presents a new modified diagonal systematic sampling method for the linear trend situation. For numerical illustration, data from the literature have been used to compare the proposed method's efficiency with some existing sampling schemes ...
Muhammad Azeem   +4 more
doaj   +1 more source

Analysis of annual sums of precipitation in Serbia [PDF]

open access: yesZbornik Radova: Geografski institut "Jovan Cvijić", 2012
This paper analyses the series of annual sums of precipitation for 27 stations in Serbia for the period 1951-2010. The lowest average perennial precipitation values have been determined for stations in northern Serbia, that is, generally a reduction ...
Stanojević Gorica
doaj   +1 more source

A Markov Chain Model for Approximating the Run Length Distributions of Poisson EWMA Charts under Linear Drifts

open access: yesMathematics, 2022
In addition to monitoring the Poisson mean rate with step shifts, increasing attention has been given to monitoring Poisson processes subject to linear trends.
Honghao Zhao   +3 more
doaj   +1 more source

Long-Term Variability of Wind Speed and Direction in the Mediterranean Basin

open access: yesWind, 2022
In this work, the ERA5 reanalysis dataset, with its fine spatial and temporal resolution, is used to study the wind speed and direction characteristics in the Mediterranean basin from 1979 to 2020.
Takvor Soukissian, Maria-Aliki Sotiriou
doaj   +1 more source

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