Results 21 to 30 of about 2,374,152 (284)

Effect of Trends on Detrended Fluctuation Analysis [PDF]

open access: yes, 2001
Detrended fluctuation analysis (DFA) is a scaling analysis method used to estimate long-range power-law correlation exponents in noisy signals. Many noisy signals in real systems display trends, so that the scaling results obtained from the DFA method ...
A. Bunde   +62 more
core   +2 more sources

RESEARCHING TRENDS AND FORECASTING FUTURE VALUES OF FRUIT EXPORTS AND IMPORTS OF THE REPUBLIC OF SERBIA

open access: yesEkonomika Poljoprivrede (1979), 2023
Considering that the Republic of Serbia has a surplus in the foreign trade of fruits, the problem of this research refers to the perception of the importance of the foreign trade of fruit of the Republic of Serbia.
Biljana Stankov   +2 more
doaj   +1 more source

Long-term linear trends mask phenological shifts [PDF]

open access: yesInternational Journal of Biometeorology, 2016
Letter to the ...
Fu, Yongshuo   +13 more
openaire   +7 more sources

The Estimation of Linear Trends

open access: yesThe Annals of Mathematical Statistics, 1948
This paper deals with the problem of bivariate regression where both variates are random variables having a finite number of means distributed along a straight line. A regression statistic is derived which is independent of change in scale so that a prior knowledge of the frequency distribution parameters is not required in order to obtain a unique ...
Housner, G. W., Brennan, J. F.
openaire   +3 more sources

Long-Term Linear Trends in Consumer Price Indices [PDF]

open access: yesSSRN Electronic Journal, 2008
Headline CPI, core CPI and indices for various expenditure categories were analyzed. Long-term linear trends have been found in the difference between the core CPI and the headline CPI in the USA. Duration of these periods is different for positive (18 years) and negative (8 years) trends, and the trends change to opposite during some shorter time ...
Ivan O. Kitov, Oleg I. Kitov
openaire   +2 more sources

Multi‐Time Scale Variations in Atlantic Niño and a Relative Atlantic Niño Index

open access: yesGeophysical Research Letters, 2023
Atlantic Niño is a leading mode of climate variability in the tropical Atlantic Ocean with important regional impacts. Tropical Atlantic sea surface temperatures (SSTs) connected with Atlantic Niño exhibit notable multi‐time scale variations, including a
Wei Tan   +4 more
doaj   +1 more source

Long-Term Dynamics of Snow Cover in the Elbrus Region

open access: yesНаука. Инновации. Технологии, 2023
Introduction. The snow accumulation regime is an important parameter in climate models, in assessing soil moisture reserves, in calculating the level of runoff, flood forecasting, and also for studying atmospheric pollution.
A. K. Adzhiev   +3 more
doaj   +1 more source

Spatial and Seasonal Features of the Long-Term Changes in Atmospheric Precipitation at the Territory of Bryansk Region [PDF]

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2015
This work presents the analysis of trends in the changes of precipitation at the territory of Bryansk region during the late 20th and early 21st centuries.
V.S. Selyutin
doaj  

Air temperature changes and phenological phases of field cucumber (Cucumis sativus L.) in Poland, 1966-2005

open access: yesHorticultural Science, 2009
The aim of the work was to determine whether and how the frequently observed trends in air temperature changes affect the dates of phenophases of field cucumber (pickling variety) cultivated in Poland. Completion of the task included gathering of monthly
R. Kalbarczyk
doaj   +1 more source

CHANGES IN TEMPERATURE REGIME AND PRECIPITATION REGIME OF WARM AND COLD PERIODS IN VARIOUS CLIMATIC ZONES OF THE NORTH CAUCASUS REGION

open access: yesНаука. Инновации. Технологии, 2022
Introduction . Climate change is currently viewed by many states as one of the most important global challenges of our century and is considered a serious threat to sustainable development .
B. A. Ashabokov   +3 more
doaj   +1 more source

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