Crown Health Indicator

[SlntCrtgrphr]

Hello.

I am working with dashboards for the first time.

I am trying to create an indicator that takes the average crown width of a tree, and then compares it to its size in the previous year. More specifically, I would like to indicate the tree health by which of the 4 categories (below) the tree falls into. For example, if a tree's crown width was 40cm in year one, and then 33cm in year two, it should fall into "Light to Moderate:"

Crown Condition Categories

• Healthy: 0-10% crown dieback
• Light to Moderate Decline: 11-50% crown dieback
• Severe Decline: Greater than 50% crown dieback
• Dead

I'm pretty green in terms of AGOL, so I'm open to different solutions. Any input would be appreciated.

[jcarlson]

You'll likely need Arcade for this. Possibly a Data Expression, but maybe not. Are the widths per year kept as separate fields? What does the schema look like?

And when you say "average", you're looking for this statistic across multiple features? You may be able to use a reference value in your indicator, too, but more information about how the data looks would be helpful.