CoastSat v1.2

Updates from previous release:

• Compatibility with Landsat 9 imagery
• Users can choose whether to use Landsat Collection 1 or the newly released Collection 2 (note that Google Earth Engine are still uploading Collection 2 to their servers). Images after 2022/01/01 are only available in Collection 2.
• More bug fixes from @2320sharon on merging Sentinel-2 images that overlap in the region of interest
• New installation instructions (without the environment.yml file)

CoastSat v1.1.2

minor bugfix as Inf values were crashing the classifier

CoastSat v1.1.1

Bugfix when merging overlapping S2 images in SDS_download.py

CoastSat v1.1

New functionality that allows users to plot the histogram of MNDWI pixel intensities and adjust the threshold that is used for shoreline detection as show below:

this functionality can be activated by setting adjust_detection to True (default value set to False).

CoastSat v1.0.5

minor bug fixes (based on reported issues) related to the handling of cloud cover with the new earthengine api version

CoastSat v1.0.4

• fixed the issue with merging overlapping S2 images for version of the earthengine-api > 0.1.201, it now works with all versions.

CoastSat v1.0.3

• Added a section on tidal correction using tide levels at the time of image acquisition and an estimate of the beach-face slope.
• there is still an issue with merging overlapping Sentinel-2 images with versions of earthengine-api > 0.1.201 (for earlier versions it works fine)

CoastSat v1.0.2

Changes from previous release:

• updates to download function
• updates to the way the outputs are saved:
  • geojson file containing the shorelines is saved as a multipoint instead of linestring
  • a new .csv with the time-series of shoreline change along the transects
  • some new functions to filter out duplicates and images with inaccurate georeferencing

CoastSat v1.0.1

Changes from previous release:

• new functions to label images and train your own image classifier in the \classification folder

First release for CoastSat

CoastSat is an open-source software toolkit written in Python that enables users to obtain time-series of shoreline position at any coastline worldwide from 30+ years (and growing) of publicly available satellite imagery.
There are three main functionalities:

• assisted retrieval from Google Earth Engine of all available satellite images spanning the user-defined region of interest and time period
• automated extraction of shorelines from all the selected images using a sub-pixel resolution technique
• intersection of the 2D shorelines with user-defined shore-normal transect