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Change in Moisture Storage is the total amount of water that is stored within the specified reservoir or catchment area. It represents the net water balance in a hydrological system over a specific period.
The calculator uses the water balance equation:
Where:
Explanation: The equation calculates the net change in water storage by subtracting water outputs (runoff, subsurface flow, and evapotranspiration) from water input (precipitation).
Details: Accurate moisture storage calculation is crucial for water resource management, flood prediction, drought monitoring, and agricultural planning. It helps in understanding the water balance of a catchment area and making informed decisions about water allocation and conservation.
Tips: Enter all values in their respective units. Precipitation should be in meters, while surface runoff, subsurface outflow, and actual evapotranspiration should be in cubic meters per second. All values must be non-negative.
Q1: What is the significance of change in moisture storage?
A: It indicates whether a catchment area is gaining or losing water over time, which is essential for water resource planning and management.
Q2: How often should moisture storage be calculated?
A: It depends on the application, but typically it's calculated daily, weekly, or monthly for hydrological monitoring and water balance studies.
Q3: What factors can affect moisture storage?
A: Climate conditions, land use changes, vegetation cover, soil properties, and human activities such as irrigation and water extraction.
Q4: Can negative values occur for change in moisture storage?
A: Yes, negative values indicate that more water is leaving the system than entering it, resulting in a net loss of stored moisture.
Q5: How is this calculation used in agriculture?
A: It helps farmers determine irrigation needs, predict soil moisture levels, and optimize water usage for crop production.