An improved representation of physical permafrost dynamics in the JULES land-surface model

Chadburn, S.; Burke, E.; Essery, R.; Boike, J.; Langer, M.; Heikenfeld, M.; Cox, P.; Friedlingstein, P.

doi:10.5194/gmd-8-1493-2015

Articles | Volume 8, issue 5

https://doi.org/10.5194/gmd-8-1493-2015

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

https://doi.org/10.5194/gmd-8-1493-2015

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

Articles | Volume 8, issue 5

Development and technical paper

|

21 May 2015

Development and technical paper |

| 21 May 2015

An improved representation of physical permafrost dynamics in the JULES land-surface model

S. Chadburn, E. Burke, R. Essery, J. Boike, M. Langer, M. Heikenfeld, P. Cox, and P. Friedlingstein

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Jan 2015	10	10	0	20
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Mar 2015	20	20	1	41
Apr 2015	35	23	5	63
May 2015	51	48	1	100
Jun 2015	60	28	0	88
Jul 2015	41	22	1	64
Aug 2015	26	15	0	41
Sep 2015	29	25	1	55
Oct 2015	33	18	1	52
Nov 2015	24	24	4	52
Dec 2015	9	12	0	21
Jan 2016	36	31	0	67
Feb 2016	16	25	1	42
Mar 2016	18	17	0	35
Apr 2016	12	14	1	27
May 2016	22	24	4	50
Jun 2016	12	12	2	26
Jul 2016	16	17	4	37
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Oct 2016	15	6	4	25
Nov 2016	7	2	9
Dec 2016	9	5	3	17
Jan 2017	28	26	5	59
Feb 2017	19	29	2	50
Mar 2017	50	44	8	102
Apr 2017	43	37	1	81
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Jul 2020	53	35	38	126
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Jan 2024	68	21	2	91
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Jun 2024	36	9	4	49
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Sep 2024	27	6	1	34
Oct 2024	20	4	0	24
Nov 2024	13	9	2	24
Dec 2024	27	12	2	41
Jan 2025	21	10	0	31
Feb 2025	45	13	4	62
Mar 2025	29	4	0	33
Apr 2025	65	13	0	78
May 2025	56	10	1	67
Jun 2025	60	19	0	79
Jul 2025	47	11	1	59
Aug 2025	50	15	1	66
Sep 2025	95	18	1	114
Oct 2025	42	35	4	81
Nov 2025	63	31	6	100
Dec 2025	40	19	6	65
Jan 2026	64	37	7	108
Feb 2026	77	17	3	97
Mar 2026	60	24	3	87
Apr 2026	22	18	1	41

Cumulative views and downloads (calculated since 30 Jan 2015)

Month	HTML	PDF	XML	Total
Jan 2015	10	10	0	20
Feb 2015	34	32	1	67
Mar 2015	20	20	1	41
Apr 2015	35	23	5	63
May 2015	51	48	1	100
Jun 2015	60	28	0	88
Jul 2015	41	22	1	64
Aug 2015	26	15	0	41
Sep 2015	29	25	1	55
Oct 2015	33	18	1	52
Nov 2015	24	24	4	52
Dec 2015	9	12	0	21
Jan 2016	36	31	0	67
Feb 2016	16	25	1	42
Mar 2016	18	17	0	35
Apr 2016	12	14	1	27
May 2016	22	24	4	50
Jun 2016	12	12	2	26
Jul 2016	16	17	4	37
Aug 2016	17	6	3	26
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Oct 2016	15	6	4	25
Nov 2016	7	2	9
Dec 2016	9	5	3	17
Jan 2017	28	26	5	59
Feb 2017	19	29	2	50
Mar 2017	50	44	8	102
Apr 2017	43	37	1	81
May 2017	41	27	8	76
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Jul 2023	49	6	0	55
Aug 2023	51	18	1	70
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Oct 2023	112	11	2	125
Nov 2023	153	3	0	156
Dec 2023	57	17	6	80
Jan 2024	68	21	2	91
Feb 2024	47	23	0	70
Mar 2024	53	19	2	74
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May 2024	42	21	6	69
Jun 2024	36	9	4	49
Jul 2024	29	18	4	51
Aug 2024	35	8	7	50
Sep 2024	27	6	1	34
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Nov 2024	13	9	2	24
Dec 2024	27	12	2	41
Jan 2025	21	10	0	31
Feb 2025	45	13	4	62
Mar 2025	29	4	0	33
Apr 2025	65	13	0	78
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Jul 2025	47	11	1	59
Aug 2025	50	15	1	66
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Oct 2025	42	35	4	81
Nov 2025	63	31	6	100
Dec 2025	40	19	6	65
Jan 2026	64	37	7	108
Feb 2026	77	17	3	97
Mar 2026	60	24	3	87
Apr 2026	22	18	1	41

Saved (final revised paper)

Latest update: 24 Apr 2026

Short summary

Permafrost, ground that is frozen for 2 or more years, is found extensively in the Arctic. It stores large quantities of carbon, which may be released under climate warming, so it is important to include it in climate models. Here we improve the representation of permafrost in a climate model land-surface scheme, both in the numerical representation of soil and snow, and by adding the effects of organic soils and moss. Site simulations show significantly improved soil temperature and thaw depth.