Journal ArticleDOI
Nonparametric tests against trend
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This article is published in Econometrica.The article was published on 1945-07-01. It has received 10523 citations till now. The article focuses on the topics: Nonparametric statistics.read more
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A Nonparametric Trend Test for Seasonal Data With Serial Dependence
TL;DR: In this article, an extension of the Mann-Kendall test for trend in seasonal (e.g., monthly) hydrologic time series is presented, which is robust against nonnormality and censoring.
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Analysis of changes in meteorological variables using Mann-Kendall and Sen's slope estimator statistical tests in Serbia
Milan Gocic,Slavisa Trajkovic +1 more
TL;DR: In this article, the authors analyzed the annual and seasonal trends of seven meteorological variables for twelve weather stations in Serbia during 1980-2010 and used the nonparametric Mann-Kendall and Sen's methods to determine whether there was a positive or negative trend in weather data with their statistical significance.
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Detection of hydrologic trends and variability
TL;DR: In this article, the Mann-Kendall nonparametric test was used to detect trends in hydrologic variables and a permutation approach to estimate the test distribution, and accounts for the correlation structure in the data in determining the significance level of the test results.
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Trend detection in hydrologic data: The Mann–Kendall trend test under the scaling hypothesis
TL;DR: In this article, the Mann-Kendall test is modified to account for the effect of scaling in hydrologic data, and the results show a considerable reduction in the number of stations with significant trends when the effects of scaling are taken into account.
Journal ArticleDOI
Large wildfire trends in the western United States, 1984-2011
Abstract: We used a database capturing large wildfires (> 405 ha) in the western U.S. to document regional trends in fire occurrence, total fire area, fire size, and day of year of ignition for 1984–2011. Over the western U.S. and in a majority of ecoregions, we found significant, increasing trends in the number of large fires and/or total large fire area per year. Trends were most significant for southern and mountain ecoregions, coinciding with trends toward increased drought severity. For all ecoregions combined, the number of large fires increased at a rate of seven fires per year, while total fire area increased at a rate of 355 km2 per year. Continuing changes in climate, invasive species, and consequences of past fire management, added to the impacts of larger, more frequent fires, will drive further disruptions to fire regimes of the western U.S. and other fire-prone regions of the world.