关于计算降水累积的疑惑

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基于单台雷达，我大概知道是通过Z-I关系得到降雨率，但随后如何进行降水累积这块感觉讲得很模糊，就有点看不懂了。有人对这方面比较了解吗？
1) Integrating rate scans

The accumulation algorithm performs a simple integration of consecutive rate scans over the 5-, 6-, or 10-min period spanning two volume scans. A linear average rain rate is computed at each 2 km × 1° polar grid bin from the two consecutive rate scans, and that rate is applied over the scan-to-scan period. Each of these scan-to-scan accumulations is then summed over time from the beginning of the rain event to produce a storm total rainfall accumulation. The internal precision of the accumulations on a linear scale is retained at 0.1 mm.

相关论文地址
https://journals.ametsoc.org/doi/full/10.1175/1520-0434%281998%29013%3C0377%3ATWRA%3E2.0.CO%3B2

田小溪

降水累积的相关问题

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目前的理解：对于降水累积，若雷达时间间隔不大的话可直接用累积公式进行计算。