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Trend user guide Prepared by Francis Chiew and Lionel Siriwardena CRC for Catchment Hydrology www toolkit net au trend USER GUIDE C CDocument History Date February June July February Author Francis Chiew Robert Argent Francis Chiew Francis Chiew Revision

Prepared by Francis Chiew and Lionel Siriwardena CRC for Catchment Hydrology www toolkit net au trend USER GUIDE C CDocument History Date February June July February Author Francis Chiew Robert Argent Francis Chiew Francis Chiew Revision b Copyright notice ? CRC for Catchment Hydrology Australia Description of Change Basic User Guide for Modelling School Creation of User Guide from Notes First version of User Guide This applies to version b beta of the Trend software User Guide for ?rst full release of TREND version and b are similar Legal Information To the extent permitted by law the CRC for Catchment Hydrology including its employees and consultants accepts no responsibility and excludes all liability whatsoever in respect of any person's use or reliance on this publication or any part of it CAcknowledgements TREND is a product from the CRC for Catchment Hydrology ? s CRCCH Climate Variability Program The scienti ?c development and testing were carried out by Francis Chiew and Lionel Siriwardena and the software was developed by Sylvain Arene and Joel Rahman The Product Manager of TREND is Francis Chiew University of Melbourne University of Melbourne and Gri ?th University CSIRO Land and Water CTREND ?? User Guide CONTENTS Introduction The user guide TREND Overview Features Audience Limitations and cautionary notes Related documents Data requirements Input data Calculated results References and training Installation Technical speci ?cations Licence agreement Folders Installation Framework installation Stand-alone PC Uninstalling TREND Using TREND Getting started Data Input screen Options screen Test selection panel Resampling panel Period panel Display panel Running the tests Results screen Test display panel C Summary statistics panel Test result panel Saving test results Description of statistical tests Statistical testing Basic concepts Signi ?cance level Resampling analysis to estimate signi ?cance level Parametric and non-parametric tests Description of statistical tests in TREND Mann-Kendall Test Spearman ? s Rho Test Linear Regression Test Distribution Free CUSUM Test Cumulative Deviation Test Worsley Likelihood Ratio Test Rank-Sum Test Student ? s t Test Median Crossing Test Turning Points Test Rank Di ?erence Test Autocorrelation Test References CIntroduction Introduction TREND is designed to facilitate statistical testing for trend change and randomness in hydrological and other time series data TREND has statistical tests based on the WMO UNESCO Expert Workshop on Trend Change Detection and on the CRC for Catchment Hydrology publication Hydrological Recipes The user guide The User Guide provides basic instructions for using TREND It also provides an overview of statistical testing and descriptions of the statistical tests in TREND TREND Overview TREND has statistical tests that can be used to test for trend change and randomness in hydrological and other time series data ? Mann-Kendall non- parametric test for trend ? Spearman ? s Rho non-parametric test for trend ? Linear Regression parametric test for trend ? Distribution-Free CUSUM non-parametric test for step jump in mean ? Cumulative Deviation parametric test for step jump in mean ? Worsley Likelihood Ratio parametric test for step jump in mean ? Rank-Sum non-parametric test for di