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Contents
1 Introduction .................................................................................................................................................................. 4
1.1 Overview ............................................................................................................................................................... 4
1.2 System Requirements......................................................................................................................................... 4
2 Installation Steps ......................................................................................................................................................... 5
3 Sample data .................................................................................................................................................................. 6
4 DSAS Toolbar ............................................................................................................................................................... 7
5 Required Inputs ............................................................................................................................................................ 8
5.1 Geodatabase ........................................................................................................................................................ 8
5.1.1 Creating a new geodatabase ...................................................................................................................... 8
5.1.2 Upgrading a preexisting geodatabase ..................................................................................................... 8
5.2 Shorelines ............................................................................................................................................................. 9
5.2.1 Tips for collecting shoreline data ........................................................................................................... 10
5.2.2 Appending shorelines ................................................................................................................................ 11
5.2.3 Shoreline attribute field requirements ................................................................................................... 13
5.3 Baseline .............................................................................................................................................................. 14
5.3.1 Tips for constructing a baseline .............................................................................................................. 14
5.3.2 Baseline attribute field requirements ..................................................................................................... 17
6 DSAS Workflow ......................................................................................................................................................... 19
6.1 Set Default Parameters window .......................................................................................................................... 21
6.1.1 Cast Transect Settings tab ........................................................................................................................ 21
6.1.2 Shoreline Calculation Settings tab ......................................................................................................... 23
6.1.3 Metadata Settings tab ................................................................................................................................ 25
6.1.4 Log File Output ............................................................................................................................................. 26
6.2 Cast Transects ................................................................................................................................................... 27
6.2.1 Using Select Features Tool (baseline) .................................................................................................... 30
6.2.2 Transect Feature Class Attribute Fields ................................................................................................. 31
6.3 Modifying the Transect and Baseline Feature Classes ............................................................................. 32
6.4 Using transects from previous versions of DSAS ....................................................................................... 35
6.5 Calculating Change Statistics ......................................................................................................................... 36
6.5.1 Statistical Output......................................................................................................................................... 39
6.5.2 How to View Results Spatially ................................................................................................................. 40
6.6 Clipping transects to the Shoreline Change Envelope (SCE) .................................................................... 41
6.7 Using the Select Features Tool (shoreline) .................................................................................................. 43
7 Statistics ...................................................................................................................................................................... 44
7.1 Shoreline Change Envelope (SCE) ................................................................................................................. 45
7.2 Net Shoreline Movement (NSM) .................................................................................................................... 46
7.3 End Point Rate (EPR) ......................................................................................................................................... 47
7.4 Linear Regression (LRR) ................................................................................................................................... 48
7.5 Weighted Linear Regression (WLR)............................................................................................................... 50
7.6 Supplemental Statistics ................................................................................................................................... 52
7.6.1 Confidence of End Point Rate (ECI) .......................................................................................................... 52
7.6.2 Standard Error of the Estimate (LSE and WSE)...................................................................................... 52
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