68
4 Testing and Validating Against Historic Spills
Fig. 4.6 Surface VEC datasets for sea otter constructed from the North Pacific Pelagic Seabird
Database (NPPSD) in the EVOS analysis area. Source Drew et al. 2015
Table 4.4 Behavioral (p beh ) and physiological (p phy ) factors representing the likelihood of being
oiled and the likelihood of lethal effect given exposure, and the parameters for the triangular
distribution used to represent uncertainty in the Monte Carlo Simulations
VEC
group
Case
VEC
Behavioral factor p beh
Physiological factor p phy
Min
Mode Max Min
Mode max
Seabirds DHOS Seabirds—coastal 0.31
0.33 0.89 0.800
0.900 1.000
Seabirds—open
sea
0.31
0.45 0.89 0.800
0.900 1.000
EVOS Common murre
0.79
0.80 0.89 0.800
0.900 1.000
EVOS Pigeon guillemot 0.67
0.68 0.76 0.800
0.900 1.000
Marine
mammals
EVOS Harbor seal
0.83
0.90 0.96 0.004
0.028 0.058
EVOS Sea otter
0.79
0.88 0.97 0.500
0.720 0.930
DHOS Common
bottlenose
dolphin a
0.800
0.90 1.00 0.040
0.080 0.120
DHOS Bryde’s whale a
0.70
0.79 0.88 0.025
0.050 0.075
a The values of the factors were calibrated during this study. See Sect. 4.2.1.2 for details
grid cells with extensive coverage of marsh/wetland (>100 km), a limit was set to
100 km per grid cell in order to capture the essential outer coastline reachable by oil
in the oil spill model. The major shoreline habitat types in the Gulf of Mexico datasets
are salt-, brackish- and freshwater marshes and swamps (ESI 10ABE) and the major
shoreline types along the coast of Gulf of Alaska is gravel beaches, riprap (cobbles
Précédent

- 78/127

Suivant