Possible equation typo for bald eagle HSI

[dmragar]

Equation for SI 5 is negative for fractional marsh cover > 0.6.
SI 6 is also likely impacted.

Function:

def si_5(x):
    return (
        0.263
        - (9.406 * np.exp(-3) * x)
        + (5.432 * np.exp(-4) * x**2)
        - (3.817 * np.exp(-6) * x**3)
    )

[madMatchstick]

Seeing a similar problem with SI 6, v6_pct_cell_open_water. Values between (0,0.1) yeild negative SI values. Pertains to the middle block here:

            # condition 2 (AND)
            mask_2 = (self.v6_pct_cell_open_water > 0.0) & (
                self.v6_pct_cell_open_water <= 0.95
            )
            si_6[mask_2] = 0.985 - (0.105 * (self.v6_pct_cell_open_water[mask_2] ** -1))