800-year ice-core record of nitrogen deposition in Svalbard linked to ocean productivity and biogenic emissions

Wendl, I. A.; Eichler, A.; Isaksson, E.; Martma, T.; Schwikowski, M.

doi:10.5194/acp-15-7287-2015

Articles | Volume 15, issue 13

https://doi.org/10.5194/acp-15-7287-2015

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

https://doi.org/10.5194/acp-15-7287-2015

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

Articles | Volume 15, issue 13

Research article

|

07 Jul 2015

Research article |

| 07 Jul 2015

800-year ice-core record of nitrogen deposition in Svalbard linked to ocean productivity and biogenic emissions

I. A. Wendl, A. Eichler, E. Isaksson, T. Martma, and M. Schwikowski

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Aug 2024	22	53	6	81
Sep 2024	9	32	0	41
Oct 2024	17	44	1	62
Nov 2024	14	31	3	48
Dec 2024	17	26	4	47
Jan 2025	28	34	4	66
Feb 2025	30	15	3	48
Mar 2025	19	11	3	33
Apr 2025	26	10	1	37
May 2025	43	8	5	56
Jun 2025	36	14	2	52
Jul 2025	22	17	0	39
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Cumulative views and downloads (calculated since 25 Sep 2014)

Month	HTML	PDF	XML	Total
Sep 2014	108	85	5	198
Oct 2014	82	65	6	153
Nov 2014	40	30	5	75
Dec 2014	27	17	6	50
Jan 2015	30	7	0	37
Feb 2015	39	7	1	47
Mar 2015	39	5	2	46
Apr 2015	48	3	1	52
May 2015	16	4	3	23
Jun 2015	23	3	0	26
Jul 2015	224	118	6	348
Aug 2015	40	30	3	73
Sep 2015	49	22	1	72
Oct 2015	26	10	1	37
Nov 2015	42	32	4	78
Dec 2015	15	16	0	31
Jan 2016	35	20	3	58
Feb 2016	36	18	1	55
Mar 2016	23	16	0	39
Apr 2016	14	10	1	25
May 2016	9	8	0	17
Jun 2016	7	8	2	17
Jul 2016	11	6	3	20
Aug 2016	11	12	0	23
Sep 2016	9	7	0	16
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Dec 2023	35	10	2	47
Jan 2024	51	6	1	58
Feb 2024	44	19	1	64
Mar 2024	68	29	0	97
Apr 2024	90	26	3	119
May 2024	48	33	3	84
Jun 2024	40	38	1	79
Jul 2024	46	58	2	106
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Sep 2024	9	32	0	41
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Jun 2025	36	14	2	52
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Aug 2025	20	10	0	30
Sep 2025	37	16	3	56
Oct 2025	34	21	0	55
Nov 2025	41	25	4	70
Dec 2025	7	4	0	11

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Short summary

Nitrate and ammonium ice core records from Lomonosovfonna, Svalbard, indicated anthropogenic pollution from Eurasia as major source during the 20th century. In pre-industrial times nitrate is correlated with methane sulfonate, which we explain with a fertilising effect, presumably triggered by enhanced atmospheric nitrogen input to the ocean. Eurasia was likely the main source area also of pre-industrial nitrate, but for ammonium, biogenic emissions from Siberian boreal forests were dominant.