todo

Organized by page...

home page

• merge the “Portland Flood Risk” animation on to the home page -- DONE
• set radio buttons to null if user starts interacting with map (PITA)

Portland flood risk

• I removed this page since it's now merged into the home page -- DONE

Detailed risk analysis

• Review/revise wording in the table
• Add "scenario" labels -- alternatives to "Hi50" and "Int50" -- recommendations?
• Toggle between medium & high scenarios for detailed risk -- DONE
• Update exceedance to use tidy CSVs -- DONE
  • elevation < 0 -- no data
  • 0 < elevation < 0.5 m -- frequent flooding
  • Hi50 = NaN, elevation < 3.5 -- frequent flooding
  • Hi50 = NaN, elevation > 3.5 -- no risk
  • Int50 = NaN, elevation > 3.5 -- no risk
• Add actual "exceedance" value to the yellow message when clicked -- DONE
• Changes meters to feet -- DONE
• Add color swatches to the Exceedance scale card -- DONE
• Zoom level is great. Maybe have a note saying to click on left-hand map to move the location (I got a bit confused once I zoomed) One option: add text “click on left-hand map to pan” with the “Zoom Level” legend item on the right-hand plot -- DONE (see if you like what I did)
• Set default opacity to 0.6 -- NOT DONE (the problem: color scale no longer matches the legend)
• Change “Click for a value” to “Click for an elevation and expected number of floods per year”
• Add a note on exceedance language in a colorful box somewhere (this will replace the notes that are there right now below the map – 23 May 2025) We express likelihood of flooding as the expected number of floods per year, which can be less than 1. Some examples: -- DONE (see if you like what I did)
  • 10 = 10 expected floods per year
  • 0.1 = 10% chance of flooding in a given year
  • 0.01 = 1% chance of flooding in a given year
• Exceedance color scale - Would change to these four categories -- DONE
  • Frequent flooding (more than once per year)
  • Moderate to high risk (greater than 0.1 per year / 10% annual chance)
  • Moderate risk (0.1 to 0.01 per year / 10% to 1% annual chance
  • Moderate to low risk (less than 0.01 per year / 1% annual chance)
• Agreed on removing the two controls (elevation/exceedance and max height) -- DONE

Asset risk page

• Do we want any charts? -- see ./test-height2
• Do we really want "start year"?
• Confirm wording
• Add labels for scenarios in the radio button
• Add "scenario" labels -- alternatives to "Hi50" and "Int50" -- recommendations?
• update exceedance to use tidy CSVs -- DONE
• NOTE: Minimum exceedance in the data is 0.0032, so 0.002 = 500-year flood isn't available as an option. -- FIXED
• Under heading where you have the two questions listed: -- DONE
  • Put this text in a colored box?
  • We express likelihood of flooding as the expected number of floods per year, which can be less than 1. Some examples:
  • 10 = 10 expected floods per year
  • 0.1 = 10% chance of flooding in a given year
  • 0.01 = 1% chance of flooding in a given year
• Question #1: Exposure
  • Simplified question: “How likely is an asset (at a specified elevation) to flood over a certain time period?”
  • Use the sliders to select:
    • The elevation of your location or asset in feet above NAVD88 (use the map on the “Detailed risk analysis page”)
    • The start year and end year of the time period over which you would like to view flood risk
  • Result text:
    • An asset with an elevation of XX ft NAVD88 is expected to flood:
    • XX times per year (XX% annual chance) in [start year], increasing to XX times per year in [end year] under the INTERMEDIATE scenario
  • [same bullet for HIGH]
• Question #2: Asset Height
  • Modified text: “What elevation should an asset be installed or built at to maintain a specified level of protection against flooding over a given time period?”
  • User input:
    • Select maximum annual flood risk you can tolerate for your asset
      • Radio buttons: 0.002 (0.2% annual chance of flooding), 0.01 (1% annual chance of flooding), 0.1 (10% annual chance of flooding), 1 (1 expected flood per year), 12 (12 expected floods per year, or one per month)
    • The start and end year of the time period over which you would like to consider flood risk
  • Result text: “To maintain a flood risk less than or equal to XX expected floods per year (YY% annual chance of flooding) over YYYY to YYYY, an asset must be at an elevation of at least XX feet NAVD88”
• Figure
  • Title: Elevation that is expected to flood XX times per year (YY% annual chance of flooding) over YYYY to YYYY
  • Scale axis to user-provided years
  • Show intermediate and high