Hydrologic sensitivity of flood runoff and inundation: 2011 Thailand floods in the Chao Phraya River basin

Sayama, T.; Tatebe, Y.; Iwami, Y.; Tanaka, S.

doi:10.5194/nhess-15-1617-2015

Articles | Volume 15, issue 7

https://doi.org/10.5194/nhess-15-1617-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/nhess-15-1617-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 15, issue 7

Research article

|

24 Jul 2015

Research article |

| 24 Jul 2015

Hydrologic sensitivity of flood runoff and inundation: 2011 Thailand floods in the Chao Phraya River basin

T. Sayama, Y. Tatebe, Y. Iwami, and S. Tanaka

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Month	HTML	PDF	XML	Total
Nov 2014	24	23	2	49
Dec 2014	14	19	9	42
Jan 2015	21	13	5	39
Feb 2015	6	10	0	16
Mar 2015	8	2	0	10
Apr 2015	12	6	1	19
May 2015	4	6	0	10
Jun 2015	7	3	0	10
Jul 2015	53	38	2	93
Aug 2015	39	52	0	91
Sep 2015	21	22	0	43
Oct 2015	34	30	0	64
Nov 2015	34	35	2	71
Dec 2015	17	50	3	70
Jan 2016	24	44	2	70
Feb 2016	18	36	2	56
Mar 2016	10	34	0	44
Apr 2016	7	19	0	26
May 2016	5	13	0	18
Jun 2016	6	5	1	12
Jul 2016	6	6	2	14
Aug 2016	7	16	1	24
Sep 2016	8	16	1	25
Oct 2016	4	16	0	20
Nov 2016	6	12	1	19
Dec 2016	4	5	1	10
Jan 2017	9	16	0	25
Feb 2017	6	27	0	33
Mar 2017	17	26	0	43
Apr 2017	14	29	0	43
May 2017	17	20	1	38
Jun 2017	12	11	1	24
Jul 2017	14	12	0	26
Aug 2017	8	26	1	35
Sep 2017	17	28	0	45
Oct 2017	7	14	1	22
Nov 2017	11	24	2	37
Dec 2017	15	23	5	43
Jan 2018	13	20	0	33
Feb 2018	9	11	0	20
Mar 2018	10	17	3	30
Apr 2018	16	18	0	34
May 2018	8	12	0	20
Jun 2018	13	34	1	48
Jul 2018	8	16	1	25
Aug 2018	13	35	1	49
Sep 2018	11	22	0	33
Oct 2018	12	30	1	43
Nov 2018	11	25	2	38
Dec 2018	11	18	0	29
Jan 2019	17	19	8	44
Feb 2019	13	10	4	27
Mar 2019	7	15	3	25
Apr 2019	4	15	0	19
May 2019	12	36	6	54
Jun 2019	10	22	0	32
Jul 2019	12	24	1	37
Aug 2019	13	24	0	37
Sep 2019	7	14	1	22
Oct 2019	8	13	2	23
Nov 2019	10	15	0	25
Dec 2019	10	9	0	19
Jan 2020	12	11	2	25
Feb 2020	7	3	0	10
Mar 2020	3	7	0	10
Apr 2020	3	7	0	10
May 2020	5	7	0	12
Jun 2020	24	9	0	33
Jul 2020	26	23	16	65
Aug 2020	9	11	8	28
Sep 2020	12	8	0	20
Oct 2020	10	11	0	21
Nov 2020	14	16	2	32
Dec 2020	11	13	0	24
Jan 2021	19	9	0	28
Feb 2021	11	5	2	18
Mar 2021	8	9	0	17
Apr 2021	8	8	0	16
May 2021	6	17	3	26
Jun 2021	10	19	1	30
Jul 2021	11	10	0	21
Aug 2021	17	17	0	34
Sep 2021	19	17	0	36
Oct 2021	16	40	1	57
Nov 2021	21	36	1	58
Dec 2021	17	15	1	33
Jan 2022	13	21	1	35
Feb 2022	13	16	1	30
Mar 2022	14	13	3	30
Apr 2022	17	8	2	27
May 2022	9	7	1	17
Jun 2022	35	12	5	52
Jul 2022	16	11	0	27
Aug 2022	18	16	0	34
Sep 2022	20	7	0	27
Oct 2022	13	10	4	27
Nov 2022	23	18	0	41
Dec 2022	17	8	2	27
Jan 2023	24	25	1	50
Feb 2023	26	24	3	53
Mar 2023	41	18	1	60
Apr 2023	13	11	0	24
May 2023	19	17	3	39
Jun 2023	9	13	1	23
Jul 2023	15	13	2	30
Aug 2023	14	11	2	27
Sep 2023	18	23	1	42
Oct 2023	161	18	2	181
Nov 2023	191	15	0	206
Dec 2023	17	12	0	29
Jan 2024	18	15	1	34
Feb 2024	23	20	2	45
Mar 2024	28	15	4	47
Apr 2024	29	24	3	56
May 2024	24	25	4	53
Jun 2024	26	21	3	50
Jul 2024	32	32	4	68
Aug 2024	38	24	2	64
Sep 2024	39	32	2	73
Oct 2024	26	25	0	51
Nov 2024	11	31	0	42
Dec 2024	20	20	2	42
Jan 2025	36	16	0	52
Feb 2025	37	19	0	56
Mar 2025	20	13	4	37
Apr 2025	31	18	1	50
May 2025	33	8	0	41
Jun 2025	47	14	1	62
Jul 2025	26	21	0	47
Aug 2025	41	15	1	57
Sep 2025	34	9	3	46
Oct 2025	56	31	2	89
Nov 2025	45	21	2	68
Dec 2025	1	1	0	2

Cumulative views and downloads (calculated since 19 Nov 2014)

Month	HTML	PDF	XML	Total
Nov 2014	24	23	2	49
Dec 2014	14	19	9	42
Jan 2015	21	13	5	39
Feb 2015	6	10	0	16
Mar 2015	8	2	0	10
Apr 2015	12	6	1	19
May 2015	4	6	0	10
Jun 2015	7	3	0	10
Jul 2015	53	38	2	93
Aug 2015	39	52	0	91
Sep 2015	21	22	0	43
Oct 2015	34	30	0	64
Nov 2015	34	35	2	71
Dec 2015	17	50	3	70
Jan 2016	24	44	2	70
Feb 2016	18	36	2	56
Mar 2016	10	34	0	44
Apr 2016	7	19	0	26
May 2016	5	13	0	18
Jun 2016	6	5	1	12
Jul 2016	6	6	2	14
Aug 2016	7	16	1	24
Sep 2016	8	16	1	25
Oct 2016	4	16	0	20
Nov 2016	6	12	1	19
Dec 2016	4	5	1	10
Jan 2017	9	16	0	25
Feb 2017	6	27	0	33
Mar 2017	17	26	0	43
Apr 2017	14	29	0	43
May 2017	17	20	1	38
Jun 2017	12	11	1	24
Jul 2017	14	12	0	26
Aug 2017	8	26	1	35
Sep 2017	17	28	0	45
Oct 2017	7	14	1	22
Nov 2017	11	24	2	37
Dec 2017	15	23	5	43
Jan 2018	13	20	0	33
Feb 2018	9	11	0	20
Mar 2018	10	17	3	30
Apr 2018	16	18	0	34
May 2018	8	12	0	20
Jun 2018	13	34	1	48
Jul 2018	8	16	1	25
Aug 2018	13	35	1	49
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Oct 2018	12	30	1	43
Nov 2018	11	25	2	38
Dec 2018	11	18	0	29
Jan 2019	17	19	8	44
Feb 2019	13	10	4	27
Mar 2019	7	15	3	25
Apr 2019	4	15	0	19
May 2019	12	36	6	54
Jun 2019	10	22	0	32
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Jun 2021	10	19	1	30
Jul 2021	11	10	0	21
Aug 2021	17	17	0	34
Sep 2021	19	17	0	36
Oct 2021	16	40	1	57
Nov 2021	21	36	1	58
Dec 2021	17	15	1	33
Jan 2022	13	21	1	35
Feb 2022	13	16	1	30
Mar 2022	14	13	3	30
Apr 2022	17	8	2	27
May 2022	9	7	1	17
Jun 2022	35	12	5	52
Jul 2022	16	11	0	27
Aug 2022	18	16	0	34
Sep 2022	20	7	0	27
Oct 2022	13	10	4	27
Nov 2022	23	18	0	41
Dec 2022	17	8	2	27
Jan 2023	24	25	1	50
Feb 2023	26	24	3	53
Mar 2023	41	18	1	60
Apr 2023	13	11	0	24
May 2023	19	17	3	39
Jun 2023	9	13	1	23
Jul 2023	15	13	2	30
Aug 2023	14	11	2	27
Sep 2023	18	23	1	42
Oct 2023	161	18	2	181
Nov 2023	191	15	0	206
Dec 2023	17	12	0	29
Jan 2024	18	15	1	34
Feb 2024	23	20	2	45
Mar 2024	28	15	4	47
Apr 2024	29	24	3	56
May 2024	24	25	4	53
Jun 2024	26	21	3	50
Jul 2024	32	32	4	68
Aug 2024	38	24	2	64
Sep 2024	39	32	2	73
Oct 2024	26	25	0	51
Nov 2024	11	31	0	42
Dec 2024	20	20	2	42
Jan 2025	36	16	0	52
Feb 2025	37	19	0	56
Mar 2025	20	13	4	37
Apr 2025	31	18	1	50
May 2025	33	8	0	41
Jun 2025	47	14	1	62
Jul 2025	26	21	0	47
Aug 2025	41	15	1	57
Sep 2025	34	9	3	46
Oct 2025	56	31	2	89
Nov 2025	45	21	2	68
Dec 2025	1	1	0	2

Latest update: 03 Dec 2025

Short summary

In 2011 the Chao Phraya River basin received about 1400mm rainfall, which was 1.2 times more than past large floods in 1995 and 2006. The long-term rainfall-runoff-inundation simulation and its water balance analysis revealed high elasticity in the flood inundation volume (4.2%). 1.2 times more rainfall might result in 1.6 times more flood inundation volume in 2011. The high sensitivity of inundation should be well recognized for a better understanding of the flood hazard characteristics.