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Table 1

The drought events and their characteristics arcoss the Pearl River basin during 1960–2015

Rank	Persistent time	DD (month)	DS (10⁶km²·month)	DI	DA (10⁵ km²)	DC
1	1962.12–1963.10	11	4.40	0.97	4.10	109.42°E, 24.20°N
2	2009.09–2010.09	13	4.24	0.81	4.05	107.03°E, 24.49°N
3	2011.02–2011.12	11	3.93	0.87	4.09	109.03°E, 24.30°N
4	1998.09–1999.06	10	2.80	0.71	3.94	109.76°E, 24.12°N
5	2003.11–2004.08	10	2.01	0.54	3.72	110.00°E, 24.12°N
6	2005.09–2006.02	6	1.90	0.81	3.93	109.81°E, 24.16°N
7	2015.02–2015.11	10	1.76	0.48	3.63	107.44°E, 24.50°N
8	1960.01–1960.09	9	1.75	0.48	4.05	107.67°E, 24.53°N
9	2006.08–2007.06	11	1.72	0.46	3.41	107.34°E, 24.13°N
10	2007.08–2008.01	6	1.55	0.71	3.62	110.13°E, 24.07°N
11	1989.07–1989.12	6	1.54	0.70	3.68	109.40°E, 24.04°N
12	2012.08–2013.04	9	1.40	0.51	3.07	106.72°E, 24.53°N
13	1992.09–1993.01	5	1.38	0.75	3.69	108.73°E, 24.43°N
14	2004.10–2005.01	4	1.24	0.85	3.67	110.41°E, 23.83°N
15	1986.12–1987.06	7	1.16	0.46	3.57	109.37°E, 24.37°N
16	2013.07–2014.03	9	0.86	0.37	2.57	106.87°E, 24.92°N
17	2009.01–2009.03	3	0.77	0.84	3.05	110.83°E, 24.05°N
18	2005.03–2005.05	3	0.67	0.73	3.04	107.85°E, 24.10°N
19	2006.04–2006.06	3	0.66	0.83	2.65	107.09°E, 24.27°N
20	2012.02–2012.05	4	0.64	0.84	1.91	105.32°E, 24.58°N
21	1991.09–1991.11	3	0.62	1.00	2.05	110.92°E, 23.73°N
22	2000.07–2000.12	6	0.61	0.55	1.84	109.97°E, 23.27°N
23	2002.03–2002.07	5	0.52	0.87	1.19	113.50°E, 23.72°N
24	1964.12–1965.03	4	0.51	0.64	1.99	110.93°E, 24.11°N
25	1966.09–1966.11	3	0.49	0.68	2.39	111.48°E, 23.97°N
26	1977.03–1977.05	3	0.44	0.96	1.53	112.89°E, 23.73°N
27	1991.05–1991.07	3	0.39	0.74	1.76	112.18°E, 24.13°N
28	1980.11–1981.01	3	0.37	0.81	1.54	112.34°E, 23.66°N
29	1969.01–1969.06	6	0.37	0.42	1.49	105.73°E, 24.83°N
30	1980.03–1980.05	3	0.20	0.67	1.00	105.63°E, 23.70°N
31	1967.11–1968.01	3	0.13	0.69	0.65	114.27°E, 23.84°N
32	1979.02–1979.04	3	0.11	0.90	0.41	103.56°E, 24.86°N

Rank	Persistent time	DD (month)	DS (10⁶km²·month)	DI	DA (10⁵ km²)	DC
1	1962.12–1963.10	11	4.40	0.97	4.10	109.42°E, 24.20°N
2	2009.09–2010.09	13	4.24	0.81	4.05	107.03°E, 24.49°N
3	2011.02–2011.12	11	3.93	0.87	4.09	109.03°E, 24.30°N
4	1998.09–1999.06	10	2.80	0.71	3.94	109.76°E, 24.12°N
5	2003.11–2004.08	10	2.01	0.54	3.72	110.00°E, 24.12°N
6	2005.09–2006.02	6	1.90	0.81	3.93	109.81°E, 24.16°N
7	2015.02–2015.11	10	1.76	0.48	3.63	107.44°E, 24.50°N
8	1960.01–1960.09	9	1.75	0.48	4.05	107.67°E, 24.53°N
9	2006.08–2007.06	11	1.72	0.46	3.41	107.34°E, 24.13°N
10	2007.08–2008.01	6	1.55	0.71	3.62	110.13°E, 24.07°N
11	1989.07–1989.12	6	1.54	0.70	3.68	109.40°E, 24.04°N
12	2012.08–2013.04	9	1.40	0.51	3.07	106.72°E, 24.53°N
13	1992.09–1993.01	5	1.38	0.75	3.69	108.73°E, 24.43°N
14	2004.10–2005.01	4	1.24	0.85	3.67	110.41°E, 23.83°N
15	1986.12–1987.06	7	1.16	0.46	3.57	109.37°E, 24.37°N
16	2013.07–2014.03	9	0.86	0.37	2.57	106.87°E, 24.92°N
17	2009.01–2009.03	3	0.77	0.84	3.05	110.83°E, 24.05°N
18	2005.03–2005.05	3	0.67	0.73	3.04	107.85°E, 24.10°N
19	2006.04–2006.06	3	0.66	0.83	2.65	107.09°E, 24.27°N
20	2012.02–2012.05	4	0.64	0.84	1.91	105.32°E, 24.58°N
21	1991.09–1991.11	3	0.62	1.00	2.05	110.92°E, 23.73°N
22	2000.07–2000.12	6	0.61	0.55	1.84	109.97°E, 23.27°N
23	2002.03–2002.07	5	0.52	0.87	1.19	113.50°E, 23.72°N
24	1964.12–1965.03	4	0.51	0.64	1.99	110.93°E, 24.11°N
25	1966.09–1966.11	3	0.49	0.68	2.39	111.48°E, 23.97°N
26	1977.03–1977.05	3	0.44	0.96	1.53	112.89°E, 23.73°N
27	1991.05–1991.07	3	0.39	0.74	1.76	112.18°E, 24.13°N
28	1980.11–1981.01	3	0.37	0.81	1.54	112.34°E, 23.66°N
29	1969.01–1969.06	6	0.37	0.42	1.49	105.73°E, 24.83°N
30	1980.03–1980.05	3	0.20	0.67	1.00	105.63°E, 23.70°N
31	1967.11–1968.01	3	0.13	0.69	0.65	114.27°E, 23.84°N
32	1979.02–1979.04	3	0.11	0.90	0.41	103.56°E, 24.86°N

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