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Showing 1 to 17 of 17 for “"Mann-Kendall test"”.
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Linking Streamflow Trends with Land Cover Change in a Southern US Water Tower
… processes. Using the non-parametric modified Mann-Kendall test, we analyzed streamflow trends from 1996 to 2022 for the Southern Appalachian (SA) region of the U.S. The forested uplands of the SA receive high amounts of rain and act as a "water tower" for the surrounding lowland area, both of …
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Forecasting of rainfall using statistical downscaling model (SDSM) – general circulation model (GCM) for future estimation of rainwater harvesting
… and the lowest was in Segamat. Moreover, the Mann-Kendall test was used to detect the trend and resulted in no trend for RCP 2.6. Even so, RCP 4.5 showed a significant upward trend in Muar and Kota Tinggi, and for RCP 8.5, all regions were detected to have an upwards trend except for Pontian …
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Understanding Streamflow Change at the Scale of a Major City: Chicago
… This method uses the rank correlations of the Mann-Kendall statistics to extract information that can be interpreted to identify the timing and duration of a detected shift, while it also adopts the Mann-Kendall test to determine whether the change is statistically signi ficant. It is also …
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Occoquan Reservoir and Watershed: A Water Quality Assessment 1973–2019
… water quality trends were determined using Mann-Kendall test and relationship between constituents was evaluated using Principal Component Analysis (PCA). Trophic state of the reservoir was assessed using Carlson's Trophic State Index (TSI), Vollenweider Model, and Rast, Jones, and Lee's …
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Using Self-Organizing Maps to Calculate Chilling Hours as an Indicator of Temperature Shifts During Winter in the Southeastern United States
… Both results were statistically significant by Mann-Kendall test. The results of the nested SOMs suggest that an increase in patterns of southerly flow (a common pattern for warmer temperatures) is occurring through time. A third SOM investigating early spring hard freezes was inconclusive but …
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AUGUST STREAM DISCHARGE TRENDS PORTEND IMPACTS OF CLIMATE CHANGE IN THE NORTHERN ROCKIES
… Local significance was examined using the Mann-Kendall non-parametric test and regional significance was obtained using a bootstrap procedure in combination with the Mann-Kendall test. Our analyses indicate that watersheds throughout the NR are experiencing substantial declines in stream …
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AUGUST STREAM DISCHARGE TRENDS PORTEND IMPACTS OF CLIMATE CHANGE IN THE NORTHERN ROCKIES
… Local significance was examined using the Mann-Kendall non-parametric test and regional significance was obtained using a bootstrap procedure in combination with the Mann-Kendall test. Our analyses indicate that watersheds throughout the NR are experiencing substantial declines in stream …
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Statistical analysis of rainfall and groundwater trends and their spatial variations in the Mopani District, South Africa
… using techniques like the double mass curve, Mann-Kendall test, Sen’s slope estimator, quantile regression, and geospatial analysis with QGIS software to identify trends and correlations. Rigorous quality control measures ensured data integrity, which was confirmed through double-mass curve …
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Relationships of piñon juniper woodland expansion and climate trends in the Walker Basin, Nevada
… densification of piñon juniper canopy.The Mann-Kendall test of trend is able to detect trends in time series stacks ofspectral vegetation indexes and discern between both large and small magnitude trends.Within the study area, piñon juniper woodlands showed the greatest increases in …
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Nitrogen transport and dynamics in grass filter strips
… provided information for the development and testing of a model to describe the dynamics and fate of nitrogen (N) in VFSs. The experiment had a completely randomized design, with 3 treatments and 2 replicates per treatment. The treatments were 3 VFS lengths: 0, 4.27, and 8.5 m VFSs. The …
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Impact of Anthropogenic Activities on Hydro-Climatological Variables
… clustering method. For each region, the Mann-Kendall trend analysis is used to examine the magnitude of change in observed temperature data as well as the data from eight climate models and an ensemble from all climate model outputs. Then the optimal fingerprint method is used to analyze …
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Floods in Germany : analyses of trends, seasonality and circulation patterns
… is therefore to clarify, in a spatially-explicit manner, whether the available discharge data derived from selected German catchments exhibit trends. Concerning the flood hazard, the suitability of the currently used stationary FFA approaches is evaluated for the discharge data. Moreover, dynamics …
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An Assessment of Outmigration-related Land Use Transition in Rural Area and Corresponding Social and Ecological Dynamics - A Case Study in Southwest China
China’s urbanisation rate has been rapidly increasing for decades (increased by about 40% during 1978-2017). This expansion has led to massive outmigration in rural regions, which has changed regional labour force structure and local landscape patterns and resulted in a series of social, …
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An Assessment of Outmigration-related Land Use Transition in Rural Area and Corresponding Social and Ecological Dynamics - A Case Study in Southwest China
China’s urbanisation rate has been rapidly increasing for decades (increased by about 40% during 1978-2017). This expansion has led to massive outmigration in rural regions, which has changed regional labour force structure and local landscape patterns and resulted in a series of social, …
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Climate variability and its implication for water resources and livelihoods in Uganda
… significant trends at 5% confidence level. The Mann-Kendall test revealed that the number of wet days reduced significantly. Temperatures are warmer and rainfall higher in the first climate normal compared to the recent 30 years. Direct rainfall, which is the most important source of water for …
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Transmission of tuberculosis in high school students in Worcester, South Africa
… by positive QuantiFERON® –TB Gold In–Tube test) prevalence data from eight South African high schools, spanning the decade 2005–2015, from databases of an adolescent cohort study (2005–2007) and an adolescent vaccine trial (2014–2015). We used the two–sample test of equality of proportions …
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Attribution of phosphorus load in various watersheds in Illinois
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-08-01