Table 2.

The Lower Mekong River annual discharge statistics. Discharge units are in m³/sec. Country codes are: CN (China), TH (Thailand), LA (Laos, PDR), and KH (Cambodia). The drainage area units are in square kilometers. The Q_min and Q_max refer to the minimum and the maximum annual discharge over the record at each site. The Q₁, Q₂, and Q₃ refer to the 25^th, 50^th (median), and 75^th percentile of the mean annual discharge at each site. The μ refers to the mean annual discharge over the record, σ is the unbiased standard deviation, CV is the coefficient of variation, 𝛾 is the skewness, H is the Hurst coefficient (Hurst, 1951; Weron, 2002). The coefficient of variation CV is equal to σ/μ.

Station Name	Code	Country	LMRB	Start Date	End Date	Drainage Area	Qmin	Q1	Q2	Q3	Qmax	μ	σ	CV	𝛾	H
Chinese Border	010000	CN	Upper basin inlet	1/1/1985	12/31/2007	—	1,619	2,010	2,157	2,459	2,763	2,221	303	0.14	0.03	0.35
Chiang Sean	010501	TH	Sub-basin 1 outlet	1/1/1960	12/31/2016	191,055	1,871	2,304	2,564	2,929	4,027	2,618	427	0.16	0.60	0.72
Luang Prabang	011201	LA	Sub-basin 2 outlet	1/1/1939	12/31/2016	273,838	1,852	3,410	3,754	4,177	5,488	3,777	707	0.19	−0.12	0.70
Vientiane	011901	LA	Sub-basin 3 outlet	1/1/1913	12/31/2016	303,528	2,677	3,975	4,455	4,900	6,111	4,476	710	0.16	0.10	0.67
Mukdahan	013402	TH	Sub-basin 4 outlet	1/1/1923	12/31/2016	394,134	5,256	7,246	8,031	9,012	10,496	8,071	1,168	0.14	−0.02	0.89
Pakse	013901	LA	Sub-basin 5 outlet	1/1/1923	12/31/2016	550,955	6,835	9,095	10,050	11,165	12,918	10,066	1,434	0.14	−0.08	0.68
Kratie	014901	KH	Sub-basin 6 outlet	1/1/1924	12/31/2016	656,518	6,599	11,891	13,527	15,077	19,562	13,411	2,591	0.19	−0.41	0.77
Yasothom	370104	TH	Sub-basin 7 outlet	1/1/1952	12/31/2003	46,805	77	171	240	287	602	242	102	0.42	1.21	0.60
Rasi Salai	380134	TH	Sub-basin 8 outlet	1/1/1979	12/31/2003	43,878	5	95	154	223	447	177	107	0.60	0.79	0.94