The Ocean Health Index (OHI) measures the sustainable delivery of ten ‘goals’ (key benefits and services) to people now and in the future. At any spatial scale, OHI assessments use the best available information to develop goal models and set targets, and goal scores are combined together to give a comprehensive picture of coastal ocean health.

The OHI Toolbox is an open-source, cross-platform resource to calculate OHI scores at any scale. Here, we will explore the Toolbox. We will use Belize as an example: this is for teaching purposes only.

Note: this presentation is made with Rmarkdown. It is viewable rendered online and in its raw form on GitHub.

• What is the Toolbox?
• The Toolbox and WebApps
• Explore a WebApp
• Explore an Assessment Repository

The OHI Toolbox facilitates the highly collaborative OHI assessment process at any scale. It is an ecosystem of data, scripts, and structure stored in several GitHub repositories. Data are saved as .csv files, and all scripts are in R.

The OHI Toolbox facilitates the highly collaborative OHI assessment process at any scale. It is an ecosystem of data, scripts, and structure stored in several GitHub repositories. Data are saved as .csv files, and all scripts are in R.

The OHI Toolbox = assessment-repo + ohicore:

• your assessment repository you will edit with your data, goal models, and updated pressures & resilience matices.
• the ohicore repository you will not edit: it provides the underlying functionality of the Toolbox and WebApps.

The OHI Toolbox = assessment-repo + ohicore.

OHI WebApps visually display the information stored in Toolbox repositories (data, models, and calculated scores). Each are identified by a three-letter code.

To use Belize as an example:

• three-letter code: blz
• WebApp: http://ohi-science.org/blz
• assessment repo: https://github.com/ohi-science/blz

Let's look at an example for Belize: http://ohi-science.org/blz.

WebApp tabs:

• App: interactive to explore data and scores
• Regions: Belize has four
• Layers: alphabetical list of all data
• Goals: global goal model equations
• Scores: calculated based on extracted global data

Belize's assessment repository is blz, available on GitHub at https://github.com/OHI-Science/blz.

The scenario folder is subcountry2014.

Note the blz.Rproj file that allows you to sync this repository through RStudio.

Within the subcountry2014 folder are some key files we will work with:

• layers.csv
• layers folder
• conf/functions.r
• conf/goals.csv
• conf/pressures_matrix.csv
• conf/resilience_matrix.csv