HomeCalculatorsPOLARIS - Risk Index Outcome (RIO)

POLARIS - Risk Index Outcome (RIO)

POLARIS Risk Index Outcome (RIO) for up to five ice-concentration bands per MSC.1/Circ.1519 - rapid operational check.

POLARISPolar CodeIce

Concentration thin first-yeartenthsRIV for bandConcentration medium FYtenthsRIV for bandConcentration thick FYtenthsRIV for band

POLARIS RIO

7.0 -

Operational status

Normal operation

Formula, assumptions, and limits

Ice concentration in tenths per band (total must not exceed 10). RIV values from MSC.1/Circ.1519 Table 1 depending on ship Ice Class and ice type (new, thin, medium, thick, old).

Symbol legend

Symbol	Meaning	Unit	Source
	Concentration of ice type i	tenths	ice chart
	Risk Index Value (Ice Class vs type)	-	MSC.1/Circ.1519 Table 1