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What are convection active days? 


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Convection active days refer to periods of time when convective activities, such as rainfall and cloud formation, are significantly enhanced. These active phases are often associated with specific weather phenomena, such as the Asian Summer Monsoon and the Madden-Julian Oscillation (MJO) . During these active periods, convection is intensified over certain regions, while other areas may experience suppressed convection. The composition of the convective cloud elements can vary during these active phases, with different types of echo structures observed, such as shallow convective echoes, deep convective cores, wide convective echo cores, and broad stratiform echo regions . The occurrence and characteristics of convective activities during active phases can be influenced by various factors, including large-scale forcing, local instability, and the diurnal cycle of precipitation . Understanding the behavior of convection during active days is important for studying weather patterns and improving forecasting capabilities .

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The paper does not explicitly define "convection active days." The term "convective activities" is mentioned throughout the paper, referring to periods of enhanced convective rainfall events over Sumatera.
The provided paper does not mention anything about "convection active days."
The paper does not explicitly define "convection active days."
The paper does not explicitly define "convection active days." The term "active phases of the Madden-Julian Oscillation" is mentioned, which refers to periods of increased convection activity in the equatorial Indian Ocean.
The paper does not explicitly define "convection active days." The term "convection" is mentioned throughout the paper in the context of analyzing error growth in convection-allowing ensemble forecasts.

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