Decreasing flood risk perception in Porto Alegre – Brazil and its influence on water resource management decisions

Allasia, D. G.; Tassi, R.; Bemfica, D.; Goldenfum, J. A.

doi:10.5194/piahs-370-189-2015

Articles | Volume 370

https://doi.org/10.5194/piahs-370-189-2015

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

https://doi.org/10.5194/piahs-370-189-2015

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

Articles | Volume 370

11 Jun 2015

| 11 Jun 2015

Decreasing flood risk perception in Porto Alegre – Brazil and its influence on water resource management decisions

D. G. Allasia, R. Tassi, D. Bemfica, and J. A. Goldenfum

Viewed

Total article views: 2,934 (including HTML, PDF, and XML)

HTML	PDF	XML	Total	BibTeX	EndNote
1,276	1,345	313	2,934	152	193

HTML: 1,276
PDF: 1,345
XML: 313
Total: 2,934
BibTeX: 152
EndNote: 193

Views and downloads (calculated since 11 Jun 2015)

Month	HTML	PDF	XML	Total
Jun 2015	21	10	1	32
Jul 2015	36	21	0	57
Aug 2015	15	5	0	20
Sep 2015	3	8	0	11
Oct 2015	13	12	0	25
Nov 2015	10	6	0	16
Dec 2015	2	6	0	8
Jan 2016	10	10	5	25
Feb 2016	1	2	3	6
Mar 2016	9	5	4	18
Apr 2016	5	8	4	17
May 2016	6	8	3	17
Jun 2016	4	1	5
Jul 2016	2	5	3	10
Aug 2016	3	3	1	7
Sep 2016	3	4	2	9
Oct 2016	4	5	4	13
Nov 2016	4	3	0	7
Dec 2016	2	1	1	4
Jan 2017	3	1	0	4
Feb 2017	1	2	0	3
Mar 2017	5	4	1	10
Apr 2017	6	9	4	19
May 2017	7	9	4	20
Jun 2017	4	6	3	13
Jul 2017	1	11	4	16
Aug 2017	5	10	3	18
Sep 2017	3	3	0	6
Oct 2017	2	8	1	11
Nov 2017	9	17	5	31
Dec 2017	4	9	4	17
Jan 2018	5	8	5	18
Feb 2018	16	15	6	37
Mar 2018	7	12	3	22
Apr 2018	5	6	1	12
May 2018	4	7	2	13
Jun 2018	6	16	5	27
Jul 2018	9	19	4	32
Aug 2018	4	14	5	23
Sep 2018	5	14	4	23
Oct 2018	4	14	3	21
Nov 2018	10	16	4	30
Dec 2018	4	13	3	20
Jan 2019	7	21	4	32
Feb 2019	11	16	2	29
Mar 2019	7	12	4	23
Apr 2019	8	13	1	22
May 2019	10	16	3	29
Jun 2019	6	18	2	26
Jul 2019	6	17	3	26
Aug 2019	6	16	5	27
Sep 2019	5	14	3	22
Oct 2019	7	7	2	16
Nov 2019	3	9	3	15
Dec 2019	4	9	2	15
Jan 2020	7	4	2	13
Feb 2020	8	12	2	22
Mar 2020	6	13	2	21
Apr 2020	7	7	3	17
May 2020	8	12	6	26
Jun 2020	39	18	2	59
Jul 2020	55	51	40	146
Aug 2020	4	12	6	22
Sep 2020	18	15	3	36
Oct 2020	6	7	1	14
Nov 2020	5	11	4	20
Dec 2020	5	14	4	23
Jan 2021	6	13	3	22
Feb 2021	2	10	4	16
Mar 2021	3	9	1	13
Apr 2021	5	3	2	10
May 2021	4	15	6	25
Jun 2021	4	16	7	27
Jul 2021	4	19	7	30
Aug 2021	4	8	4	16
Sep 2021	4	13	4	21
Oct 2021	6	20	0	26
Nov 2021	8	12	0	20
Dec 2021	13	10	4	27
Jan 2022	8	7	1	16
Feb 2022	6	8	1	15
Mar 2022	6	10	0	16
Apr 2022	4	6	1	11
May 2022	5	5	0	10
Jun 2022	2	4	1	7
Jul 2022	4	7	2	13
Aug 2022	2	5	0	7
Sep 2022	5	4	0	9
Oct 2022	8	7	2	17
Nov 2022	8	5	0	13
Dec 2022	12	5	0	17
Jan 2023	6	7	0	13
Feb 2023	10	8	1	19
Mar 2023	35	9	18	62
Apr 2023	5	8	0	13
May 2023	5	13	0	18
Jun 2023	4	8	1	13
Jul 2023	8	4	1	13
Aug 2023	5	5	0	10
Sep 2023	2	4	1	7
Oct 2023	5	6	1	12
Nov 2023	6	1	7
Dec 2023	4	5	1	10
Jan 2024	8	8	0	16
Feb 2024	3	6	0	9
Mar 2024	9	9	0	18
Apr 2024	9	6	2	17
May 2024	26	37	1	64
Jun 2024	18	25	2	45
Jul 2024	16	9	2	27
Aug 2024	25	11	0	36
Sep 2024	14	11	1	26
Oct 2024	10	12	0	22
Nov 2024	7	7	1	15
Dec 2024	4	15	0	19
Jan 2025	13	9	0	22
Feb 2025	17	4	2	23
Mar 2025	25	9	1	35
Apr 2025	17	20	0	37
May 2025	19	13	2	34
Jun 2025	53	10	1	64
Jul 2025	46	23	0	69
Aug 2025	40	23	2	65
Sep 2025	74	24	1	99
Oct 2025	39	29	2	70
Nov 2025	30	14	3	47

Cumulative views and downloads (calculated since 11 Jun 2015)

Month	HTML	PDF	XML	Total
Jun 2015	21	10	1	32
Jul 2015	36	21	0	57
Aug 2015	15	5	0	20
Sep 2015	3	8	0	11
Oct 2015	13	12	0	25
Nov 2015	10	6	0	16
Dec 2015	2	6	0	8
Jan 2016	10	10	5	25
Feb 2016	1	2	3	6
Mar 2016	9	5	4	18
Apr 2016	5	8	4	17
May 2016	6	8	3	17
Jun 2016	4	1	5
Jul 2016	2	5	3	10
Aug 2016	3	3	1	7
Sep 2016	3	4	2	9
Oct 2016	4	5	4	13
Nov 2016	4	3	0	7
Dec 2016	2	1	1	4
Jan 2017	3	1	0	4
Feb 2017	1	2	0	3
Mar 2017	5	4	1	10
Apr 2017	6	9	4	19
May 2017	7	9	4	20
Jun 2017	4	6	3	13
Jul 2017	1	11	4	16
Aug 2017	5	10	3	18
Sep 2017	3	3	0	6
Oct 2017	2	8	1	11
Nov 2017	9	17	5	31
Dec 2017	4	9	4	17
Jan 2018	5	8	5	18
Feb 2018	16	15	6	37
Mar 2018	7	12	3	22
Apr 2018	5	6	1	12
May 2018	4	7	2	13
Jun 2018	6	16	5	27
Jul 2018	9	19	4	32
Aug 2018	4	14	5	23
Sep 2018	5	14	4	23
Oct 2018	4	14	3	21
Nov 2018	10	16	4	30
Dec 2018	4	13	3	20
Jan 2019	7	21	4	32
Feb 2019	11	16	2	29
Mar 2019	7	12	4	23
Apr 2019	8	13	1	22
May 2019	10	16	3	29
Jun 2019	6	18	2	26
Jul 2019	6	17	3	26
Aug 2019	6	16	5	27
Sep 2019	5	14	3	22
Oct 2019	7	7	2	16
Nov 2019	3	9	3	15
Dec 2019	4	9	2	15
Jan 2020	7	4	2	13
Feb 2020	8	12	2	22
Mar 2020	6	13	2	21
Apr 2020	7	7	3	17
May 2020	8	12	6	26
Jun 2020	39	18	2	59
Jul 2020	55	51	40	146
Aug 2020	4	12	6	22
Sep 2020	18	15	3	36
Oct 2020	6	7	1	14
Nov 2020	5	11	4	20
Dec 2020	5	14	4	23
Jan 2021	6	13	3	22
Feb 2021	2	10	4	16
Mar 2021	3	9	1	13
Apr 2021	5	3	2	10
May 2021	4	15	6	25
Jun 2021	4	16	7	27
Jul 2021	4	19	7	30
Aug 2021	4	8	4	16
Sep 2021	4	13	4	21
Oct 2021	6	20	0	26
Nov 2021	8	12	0	20
Dec 2021	13	10	4	27
Jan 2022	8	7	1	16
Feb 2022	6	8	1	15
Mar 2022	6	10	0	16
Apr 2022	4	6	1	11
May 2022	5	5	0	10
Jun 2022	2	4	1	7
Jul 2022	4	7	2	13
Aug 2022	2	5	0	7
Sep 2022	5	4	0	9
Oct 2022	8	7	2	17
Nov 2022	8	5	0	13
Dec 2022	12	5	0	17
Jan 2023	6	7	0	13
Feb 2023	10	8	1	19
Mar 2023	35	9	18	62
Apr 2023	5	8	0	13
May 2023	5	13	0	18
Jun 2023	4	8	1	13
Jul 2023	8	4	1	13
Aug 2023	5	5	0	10
Sep 2023	2	4	1	7
Oct 2023	5	6	1	12
Nov 2023	6	1	7
Dec 2023	4	5	1	10
Jan 2024	8	8	0	16
Feb 2024	3	6	0	9
Mar 2024	9	9	0	18
Apr 2024	9	6	2	17
May 2024	26	37	1	64
Jun 2024	18	25	2	45
Jul 2024	16	9	2	27
Aug 2024	25	11	0	36
Sep 2024	14	11	1	26
Oct 2024	10	12	0	22
Nov 2024	7	7	1	15
Dec 2024	4	15	0	19
Jan 2025	13	9	0	22
Feb 2025	17	4	2	23
Mar 2025	25	9	1	35
Apr 2025	17	20	0	37
May 2025	19	13	2	34
Jun 2025	53	10	1	64
Jul 2025	46	23	0	69
Aug 2025	40	23	2	65
Sep 2025	74	24	1	99
Oct 2025	39	29	2	70
Nov 2025	30	14	3	47

Latest update: 27 Nov 2025

Short summary

Porto Alegre lies within a river junction that has become an important alluvial port as well as a chief industrial and commercial centre. This strategic location resulted in severe damage by flooding. Consequently a complex system of levees and pump stations was implemented during 1960s and 70s. In recent years, the levees were severally criticized by city planners and population due to the false perception of lack of flood risk as since its construction, not a single large flood event occurred.