The Variation of Riverbed Material due to Tropical Storms in Shi-Wen River, Taiwan

Table 2

Statistical parameters of size distribution before and after typhoon season.

Site	Before typhoon season			After typhoon season
	𝐷𝑔	𝑆𝑔	𝐵	𝐷𝑔	𝑆𝑔	𝐵
1	9.17	6.55	6.55	3.24	4.63	4.63
2	16.12	4.03	4.03	7.65	5.88	5.88
3	47.43	3.16	3.16	26.46	2.65	2.65
4	11.40	5.70	5.70	21.91	3.65	3.65
5	26.15	1.45	1.45	64.42	1.29	1.29
6	26.83	1.49	1.49	54.77	1.37	1.37
7	31.30	1.57	1.57	54.44	1.40	1.40
8	74.16	1.48	1.48	60.79	1.45	1.45
9	44.27	1.58	1.58	62.53	1.36	1.36
10	52.25	1.49	1.49	78.99	1.52	1.52
11	32.56	1.63	1.63	67.08	1.49	1.49

𝐷_𝑔: geometric mean; 𝑆_𝑔: geometric standard deviation; 𝐵: Bimodality.