Snowfall from a series of blizzard-like storms that blanketed the Sierra Nevada last month deposited the equivalent of more than 5.7 trillion gallons of water along the rugged mountain range — enough water to fill California’s largest reservoir more than four times, according to recent analysis. In a study by the University of Colorado Boulder and NASA’s Jet Propulsion Laboratory, in La Cañada Flintridge, scientists concluded this month that recent snowfall had replenished more than a third of the state’s lingering “snow-water deficit.”