Welcome to Sandpyper !

- Tools for automatic UAV-SfM beach volumetric and behavioural analysis -

• GitHub repo: https://github.com/npucino/sandpyper/tree/master/sandpyper
• Documentation: https://npucino.github.io/sandpyper/
• PyPi: https://pypi.org/project/sandpyper/
• Notebook examples: https://github.com/npucino/sandpyper/tree/master/examples
• Free software: MIT license

Introduction

Sandpyper is an open-source Python package that allows a user to perform UAV-SfM volumetric and behavioural monitoring of sandy beaches in an automated and efficient way.

Key Features

• create user-defined georeferenced cross-shore transects along a line
• extract elevation (from DSMs) and color (from orthophotos) information from folders containing hundreds of rasters
• use unsupervised machine learning and user-provided polygon masks to clean the profiles from unwanted non-sand points and swash zone
• compute altimetric and volumetric timeseries analysis
• use spatial autocorrelation measures to discard spatial outliers and obtain statistically significant Hotspots/Coldspots areas of beach change at the site scale
• compute Beachface Cluster Dynamics indices (Pucino et al., 2021) at the site and transect scales
• compute limits of detections
• plot and visualise beach change and dynamics

Additionally, a new module called space is being developed to groudtruth satellite-derived shorelines with UAV-derived shorelines. Currently, it allows:

• spatial grid generation along a line (waterline, shoreline)
• extraction and export of tiles (from the grid) of multispectral satellite imagery
• waterline to shoreline simple tidal correction
• waterline /shoreline error assessments

Credits

This package was created with Cookiecutter and the giswqs/pypackage project template.

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Last update: 2021-10-13