There were actually two periods of rain and lake formation: the first one began about 37,000 years ago; and the second one dates from about 10,000 years ago.
The figure indicates the maximum continuous precipitations, rain-lasting days and stopping dates in years from 1971 to 2000. For detailed data, see the table below.
左图为1971-2000年间最大连续降水量、降水持续天数及雨止日期。具体数据见下表。
3
The figure indicates the maximum continuous rainy days and rain-stopping dates in years from 1971 to 2000. For detailed data, see the table below.