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Download (2026Kb) - NERC Open Research Archive

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3. CONSTANI PROPORTIOML IOSS (B)<br />

sane a6 2 except that contlibutlng area = total area<br />

4. PHI INDEX (A)<br />

Net ralnf,alI<br />

constant lhlough<br />

Ratufa11<br />

Intdrsity<br />

depress ion<br />

is rainfall lnput less<br />

an evenli co$lrlbutlng<br />

90ne allosance nhlch !ena1n6<br />

alea ls al30 constant.<br />

r DEPSIO<br />

Net ralnfall = Rainfall - alepresslon storaqe - (b<br />

2 pararneter nodel : PHI,DEPSTO<br />

Rainfall<br />

when volumes forceClr PlrI = i I nro-oersro - {Ror'ol/conr. a!ea) I<br />

t. PHr rNpEX (q)<br />

storage<br />

nbere D = duratlon of n€t ralnfaLl<br />

Same as 4 ercept that contributing area - total a!ea.

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