Experimental migration of knickpoints: influence of style of base-level fall  and bed lithology

Grimaud, J.-L.; Paola, C.; Voller, V.

doi:10.5194/esurf-4-11-2016

Articles | Volume 4, issue 1

https://doi.org/10.5194/esurf-4-11-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/esurf-4-11-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 4, issue 1

Research article

|

15 Jan 2016

Research article |

| 15 Jan 2016

Experimental migration of knickpoints: influence of style of base-level fall and bed lithology

J.-L. Grimaud, C. Paola, and V. Voller

Viewed

Total article views: 4,069 (including HTML, PDF, and XML)

HTML	PDF	XML	Total	BibTeX	EndNote
1,938	1,954	177	4,069	203	235

HTML: 1,938
PDF: 1,954
XML: 177
Total: 4,069
BibTeX: 203
EndNote: 235

Views and downloads (calculated since 25 Aug 2015)

Month	HTML	PDF	XML	Total
Aug 2015	69	34	3	106
Sep 2015	24	19	8	51
Oct 2015	23	23	1	47
Nov 2015	13	10	0	23
Dec 2015	9	6	0	15
Jan 2016	88	43	3	134
Feb 2016	34	43	2	79
Mar 2016	34	17	1	52
Apr 2016	13	13	0	26
May 2016	7	9	1	17
Jun 2016	6	8	0	14
Jul 2016	7	19	2	28
Aug 2016	5	5	0	10
Sep 2016	6	5	0	11
Oct 2016	7	7	0	14
Nov 2016	3	10	2	15
Dec 2016	2	2	0	4
Jan 2017	10	6	0	16
Feb 2017	3	3	1	7
Mar 2017	12	15	3	30
Apr 2017	13	21	0	34
May 2017	12	18	0	30
Jun 2017	2	7	0	9
Jul 2017	4	13	0	17
Aug 2017	6	22	1	29
Sep 2017	11	25	1	37
Oct 2017	13	26	0	39
Nov 2017	9	28	1	38
Dec 2017	8	27	1	36
Jan 2018	7	18	0	25
Feb 2018	14	19	0	33
Mar 2018	12	25	1	38
Apr 2018	11	25	0	36
May 2018	12	27	0	39
Jun 2018	9	33	0	42
Jul 2018	9	25	0	34
Aug 2018	11	28	1	40
Sep 2018	9	24	3	36
Oct 2018	8	27	1	36
Nov 2018	9	30	1	40
Dec 2018	8	26	2	36
Jan 2019	6	15	0	21
Feb 2019	5	9	0	14
Mar 2019	9	30	0	39
Apr 2019	7	24	0	31
May 2019	11	28	0	39
Jun 2019	5	24	0	29
Jul 2019	11	29	0	40
Aug 2019	4	18	0	22
Sep 2019	3	12	0	15
Oct 2019	7	23	1	31
Nov 2019	7	20	0	27
Dec 2019	10	23	2	35
Jan 2020	13	12	1	26
Feb 2020	4	12	0	16
Mar 2020	5	10	0	15
Apr 2020	4	13	0	17
May 2020	17	15	3	35
Jun 2020	23	11	1	35
Jul 2020	53	39	40	132
Aug 2020	7	5	3	15
Sep 2020	6	10	0	16
Oct 2020	9	19	0	28
Nov 2020	6	14	1	21
Dec 2020	9	8	0	17
Jan 2021	16	19	0	35
Feb 2021	14	3	0	17
Mar 2021	7	4	0	11
Apr 2021	8	13	1	22
May 2021	13	13	0	26
Jun 2021	9	7	1	17
Jul 2021	7	3	0	10
Aug 2021	10	10	0	20
Sep 2021	15	10	3	28
Oct 2021	6	44	1	51
Nov 2021	14	30	2	46
Dec 2021	5	10	2	17
Jan 2022	10	9	0	19
Feb 2022	9	6	1	16
Mar 2022	9	10	0	19
Apr 2022	6	4	0	10
May 2022	10	10	2	22
Jun 2022	8	3	2	13
Jul 2022	8	10	1	19
Aug 2022	10	7	0	17
Sep 2022	11	19	2	32
Oct 2022	10	3	1	14
Nov 2022	26	11	1	38
Dec 2022	13	6	1	20
Jan 2023	18	9	7	34
Feb 2023	16	10	0	26
Mar 2023	21	11	1	33
Apr 2023	11	16	0	27
May 2023	22	19	3	44
Jun 2023	15	9	0	24
Jul 2023	26	3	0	29
Aug 2023	18	5	1	24
Sep 2023	12	12	1	25
Oct 2023	25	8	1	34
Nov 2023	14	1	0	15
Dec 2023	21	10	3	34
Jan 2024	12	2	1	15
Feb 2024	21	10	0	31
Mar 2024	17	11	1	29
Apr 2024	20	9	3	32
May 2024	22	20	4	46
Jun 2024	69	14	4	87
Jul 2024	32	11	6	49
Aug 2024	40	8	8	56
Sep 2024	9	22	4	35
Oct 2024	13	13	0	26
Nov 2024	22	11	0	33
Dec 2024	16	12	1	29
Jan 2025	10	9	0	19
Feb 2025	31	12	1	44
Mar 2025	16	16	0	32
Apr 2025	23	14	0	37
May 2025	33	10	1	44
Jun 2025	38	15	2	55
Jul 2025	28	19	1	48
Aug 2025	20	20	0	40
Sep 2025	52	10	3	65
Oct 2025	48	35	4	87
Nov 2025	33	41	2	76
Dec 2025	27	19	1	47

Cumulative views and downloads (calculated since 25 Aug 2015)

Month	HTML	PDF	XML	Total
Aug 2015	69	34	3	106
Sep 2015	24	19	8	51
Oct 2015	23	23	1	47
Nov 2015	13	10	0	23
Dec 2015	9	6	0	15
Jan 2016	88	43	3	134
Feb 2016	34	43	2	79
Mar 2016	34	17	1	52
Apr 2016	13	13	0	26
May 2016	7	9	1	17
Jun 2016	6	8	0	14
Jul 2016	7	19	2	28
Aug 2016	5	5	0	10
Sep 2016	6	5	0	11
Oct 2016	7	7	0	14
Nov 2016	3	10	2	15
Dec 2016	2	2	0	4
Jan 2017	10	6	0	16
Feb 2017	3	3	1	7
Mar 2017	12	15	3	30
Apr 2017	13	21	0	34
May 2017	12	18	0	30
Jun 2017	2	7	0	9
Jul 2017	4	13	0	17
Aug 2017	6	22	1	29
Sep 2017	11	25	1	37
Oct 2017	13	26	0	39
Nov 2017	9	28	1	38
Dec 2017	8	27	1	36
Jan 2018	7	18	0	25
Feb 2018	14	19	0	33
Mar 2018	12	25	1	38
Apr 2018	11	25	0	36
May 2018	12	27	0	39
Jun 2018	9	33	0	42
Jul 2018	9	25	0	34
Aug 2018	11	28	1	40
Sep 2018	9	24	3	36
Oct 2018	8	27	1	36
Nov 2018	9	30	1	40
Dec 2018	8	26	2	36
Jan 2019	6	15	0	21
Feb 2019	5	9	0	14
Mar 2019	9	30	0	39
Apr 2019	7	24	0	31
May 2019	11	28	0	39
Jun 2019	5	24	0	29
Jul 2019	11	29	0	40
Aug 2019	4	18	0	22
Sep 2019	3	12	0	15
Oct 2019	7	23	1	31
Nov 2019	7	20	0	27
Dec 2019	10	23	2	35
Jan 2020	13	12	1	26
Feb 2020	4	12	0	16
Mar 2020	5	10	0	15
Apr 2020	4	13	0	17
May 2020	17	15	3	35
Jun 2020	23	11	1	35
Jul 2020	53	39	40	132
Aug 2020	7	5	3	15
Sep 2020	6	10	0	16
Oct 2020	9	19	0	28
Nov 2020	6	14	1	21
Dec 2020	9	8	0	17
Jan 2021	16	19	0	35
Feb 2021	14	3	0	17
Mar 2021	7	4	0	11
Apr 2021	8	13	1	22
May 2021	13	13	0	26
Jun 2021	9	7	1	17
Jul 2021	7	3	0	10
Aug 2021	10	10	0	20
Sep 2021	15	10	3	28
Oct 2021	6	44	1	51
Nov 2021	14	30	2	46
Dec 2021	5	10	2	17
Jan 2022	10	9	0	19
Feb 2022	9	6	1	16
Mar 2022	9	10	0	19
Apr 2022	6	4	0	10
May 2022	10	10	2	22
Jun 2022	8	3	2	13
Jul 2022	8	10	1	19
Aug 2022	10	7	0	17
Sep 2022	11	19	2	32
Oct 2022	10	3	1	14
Nov 2022	26	11	1	38
Dec 2022	13	6	1	20
Jan 2023	18	9	7	34
Feb 2023	16	10	0	26
Mar 2023	21	11	1	33
Apr 2023	11	16	0	27
May 2023	22	19	3	44
Jun 2023	15	9	0	24
Jul 2023	26	3	0	29
Aug 2023	18	5	1	24
Sep 2023	12	12	1	25
Oct 2023	25	8	1	34
Nov 2023	14	1	0	15
Dec 2023	21	10	3	34
Jan 2024	12	2	1	15
Feb 2024	21	10	0	31
Mar 2024	17	11	1	29
Apr 2024	20	9	3	32
May 2024	22	20	4	46
Jun 2024	69	14	4	87
Jul 2024	32	11	6	49
Aug 2024	40	8	8	56
Sep 2024	9	22	4	35
Oct 2024	13	13	0	26
Nov 2024	22	11	0	33
Dec 2024	16	12	1	29
Jan 2025	10	9	0	19
Feb 2025	31	12	1	44
Mar 2025	16	16	0	32
Apr 2025	23	14	0	37
May 2025	33	10	1	44
Jun 2025	38	15	2	55
Jul 2025	28	19	1	48
Aug 2025	20	20	0	40
Sep 2025	52	10	3	65
Oct 2025	48	35	4	87
Nov 2025	33	41	2	76
Dec 2025	27	19	1	47

Latest update: 26 Dec 2025

Short summary

Knickpoints represent localized steps along a river profile (e.g. waterfalls or rapids) that are commonly interpreted as the geomorphic response of river systems to external changes. We used a simple experiment to show that knickpoints may not only respond to external base-level change but are also able to self-organize. We highlight the effect of alluvial cover in delaying knickpoint formation and show that river bed strength controls both retreat velocity and geometry of knickpoints.