# OpenCraterTool: Open Source crater mapping aid for size-frequency distribution/chronology

**URL:** <https://openplanetary.discourse.group/t/opencratertool-open-source-crater-mapping-aid-for-size-frequency-distribution-chronology/629>\
**Category:** Tools and Web Services\
**Tags:** python, geologic-mapping, qgis, impact-cratering\
**Created:** [May 3, 2023, 9:41am UTC](https://openplanetary.discourse.group/t/opencratertool-open-source-crater-mapping-aid-for-size-frequency-distribution-chronology/629 "2023-05-03T09:41:44Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![aprossi](https://yyz2.discourse-cdn.com/free1/user_avatar/openplanetary.discourse.group/aprossi/32/31_2.png) [@aprossi](https://openplanetary.discourse.group/u/aprossi)\
**Post date:** [May 3, 2023, 9:41am UTC](https://openplanetary.discourse.group/t/opencratertool-open-source-crater-mapping-aid-for-size-frequency-distribution-chronology/629/1 "2023-05-03T09:41:45Z")

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A new QGIS plugin / crater mapping aid has been released:

The OpenCraterTool is a planetary mapping aid provided as Open Source plugin for QGIS. It helps meaasuring impact crater size-frequency distributions, and estimate planetary surface ages.

The paper describing the tool is available at: [Redirecting](https://doi.org/10.1016/j.pss.2023.105687)

The OpenCraterTool is now listed in the official QGIS repository:

[https://plugins.qgis.org/plugins/opencratertool/](https://plugins.qgis.org/plugins/opencratertool/)

Its code is available on GitHub

- [GitHub - thomasheyer/OpenCraterTool: The OpenCraterTool is an open source extension for QGIS to measure and compare craters.](https://github.com/thomasheyer/OpenCraterTool)
- [GitHub - europlanet-gmap/OpenCraterTool: The OpenCraterTool is an open source extension for QGIS to measure and compare craters.](https://github.com/europlanet-gmap/OpenCraterTool)

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See GMAP web news item:

[https://www.europlanet-gmap.eu/2023/04/24/opencratertool-released/](https://www.europlanet-gmap.eu/2023/04/24/opencratertool-released/)

See for reference also relevant old posts:

> [@Open Source crater size-frequency chronology](https://openplanetary.discourse.group/t/open-source-crater-size-frequency-chronology/152):
>
> Discussion / requirements (and maybe some playing around) for a python-based crater size-frequency dating, by Greg Michael.

> [@CraterTools 2.1.x and ArcMap 10.x](https://openplanetary.discourse.group/t/cratertools-2-1-x-and-arcmap-10-x/190):
>
> What is it: CraterTools is a set of tools to measure crater size-frequency distributions (CSFDs) on map-projected image data (for ArcMap 10.x). For planetary ArcMap users, CraterTools is generally the add-in of choice for collecting craters and exporting for plotting in CraterStats2. Who wrote it: Dr. Thomas Kneissl, Freie Universität Berlin (now maintained by Alicia Neesemann) Where to get it: [https://www.geo.fu-berlin.de/en/geol/fachrichtungen/planet/software/index.html](https://www.geo.fu-berlin.de/en/geol/fachrichtungen/planet/software/index.html) Clarification: So…