UCSB 21 |
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Model Name: |
"Santa Monica Mountains Coastal Sage Scrub" |
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Fuel Model Number: |
21 |
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Source: |
UCSB Custom Model |
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Reference: |
unpublished |
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Description: |
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This model corresponds to stands where the Potential Natural Vegetation (PNV) was identified from Franklin, 1997 as consisting of: |
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• dominated by coastal sage scrub AND greater than 3 years maturity AND less than or equal to 15 years maturity |
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• dominated by a mixed coastal sage scrub and northern mixed chaparral community AND less than or equal to 12 years maturity |
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Fuel biomass data collected from destructive sampling of coastal sage scrub sites in the Santa Monica Mountains displayed much lower loading values as compared to the coastal sage scrub model proposed by the USFS, USFS 18. The values used for fuel biomass in this fuel model represent values closer to what was recorded from the destructive samples taken in the Santa Monica Mountains. |
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FuelModelNum |
D1H |
D10H |
D100H |
LH |
LW |
DSAV |
LHSAV |
LWSAV |
FuelBedDepth |
MoistOfExtinct |
DHC |
LHC |
IsNFFL |
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21 |
5.50 |
0.70 |
0.00 |
1.60 |
3.00 |
19.37 |
45.42 |
19.37 |
91.44 |
25 |
21399 |
21399 |
No |
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18 |
12.33 |
1.79 |
0.22 |
1.68 |
5.60 |
19.37 |
45.42 |
19.37 |
91.44 |
25 |
21399 |
21399 |
No |
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FuelModelNum |
MODEL NUMBER IN COVERAGE - NFFL MODEL NUMBERS ARE STANDARDIZED |
- |
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D1H |
ACCUMULATED DEAD 1 HOUR FUELS |
Mg/ha |
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D10H |
ACCUMULATED DEAD 10 HOUR FUELS |
Mg/ha |
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D100H |
ACCUMULATED DEAD 100 HOUR FUELS |
Mg/ha |
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LH |
ACCUMULATED LIVE HERBACEOUS FUELS |
Mg/ha |
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LW |
ACCUMULATED LIVE WOODY FUELS |
Mg/ha |
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DSAV |
DEAD FUELS "CHARACTERISTIC" SURFACE AREA TO VOLUME RATIO |
cm2/cm3 |
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LHSAV |
LIVE HERBACEOUS FUELS "CHARACTERISTIC" SURFACE AREA TO VOLUME RATIO |
cm2/cm3 |
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LWSAV |
LIVE WOODY FUELS "CHARACTERISTIC" SURFACE AREA TO VOLUME RATIO |
cm2/cm3 |
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FuelBedDepth |
FUEL BED DEPTH (70% of Average Stand Height) |
cm |
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MoistOfExtinct |
MOISTURE OF EXTINCTION OF DEAD FUELS |
% |
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DHC |
DEAD FUELS HEAT CONTENT |
kJ/kg |
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LHC |
LIVE FUELS HEAT CONTENT |
kJ/kg |
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IsNFFL |
IS THIS A STANDARD NFFL FUEL MODEL OR CUSTOM MODEL DEVELOPED FROM BEHAVE |
- |
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Chaparral Environmental Regimes Used In Fire Spread Predictions
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Property |
ModerateConditions |
ExtremeConditions |
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Dead 1 Hour Fuel Moisture |
0.08 |
0.02 |
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Dead 10 Hour Fuel Moisture |
0.09 |
0.04 |
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Dead 100 Hour Fuel Moisture |
0.11 |
0.05 |
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Live Herbaceous Fuel Moisture |
1.50 |
0.90 |
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Live Woody Fuel Moisture |
1.10 |
0.70 |
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Source: |
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Notes: |
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Fuel Moisture content values are given on a dry weight basis. |
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Wind magnitude (speed) was varied from 0 m/s to 10 m/s. Magnitudes in the upper range are meant to mimic Santa Ana conditions. |
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Slope was varied from 0% to 100%. At 100% slope there is a 1 meter change in vertical elevation for every 1 meter of horizontal distance. |
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Wind magnitude (speed) in slope trials was set to 0 m/s. |
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