Mechanistic site-based emulation of a global ocean biogeochemical model (MEDUSA 1.0) for parametric analysis and calibration: an application of the Marine Model Optimization Testbed (MarMOT 1.1)

Hemmings, J. C. P.; Challenor, P. G.; Yool, A.

doi:10.5194/gmd-8-697-2015

Articles | Volume 8, issue 3

https://doi.org/10.5194/gmd-8-697-2015

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

https://doi.org/10.5194/gmd-8-697-2015

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

Articles | Volume 8, issue 3

Methods for assessment of models

|

23 Mar 2015

Methods for assessment of models |

| 23 Mar 2015

Mechanistic site-based emulation of a global ocean biogeochemical model (MEDUSA 1.0) for parametric analysis and calibration: an application of the Marine Model Optimization Testbed (MarMOT 1.1)

J. C. P. Hemmings, P. G. Challenor, and A. Yool

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Jan 2025	14	9	0	23
Feb 2025	39	12	2	53
Mar 2025	17	8	0	25
Apr 2025	15	13	0	28
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Aug 2025	25	24	1	50
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Oct 2025	23	22	3	48
Nov 2025	14	6	0	20

Cumulative views and downloads (calculated since 25 Sep 2014)

Month	HTML	PDF	XML	Total
Sep 2014	61	22	1	84
Oct 2014	39	28	2	69
Nov 2014	16	14	1	31
Dec 2014	19	32	1	52
Jan 2015	6	6	0	12
Feb 2015	11	8	0	19
Mar 2015	40	31	2	73
Apr 2015	63	25	4	92
May 2015	59	32	2	93
Jun 2015	32	4	3	39
Jul 2015	27	19	0	46
Aug 2015	13	4	0	17
Sep 2015	13	8	2	23
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Nov 2015	27	6	0	33
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Mar 2017	17	35	1	53
Apr 2017	34	40	7	81
May 2017	37	28	4	69
Jun 2017	37	37	4	78
Jul 2017	21	38	0	59
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Feb 2018	10	46	0	56
Mar 2018	10	53	0	63
Apr 2018	6	57	2	65
May 2018	8	54	0	62
Jun 2018	6	56	0	62
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Oct 2018	14	57	0	71
Nov 2018	16	51	1	68
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Jan 2019	9	52	0	61
Feb 2019	3	39	0	42
Mar 2019	6	53	0	59
Apr 2019	3	47	0	50
May 2019	3	34	0	37
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Nov 2022	40	6	0	46
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Oct 2023	37	6	0	43
Nov 2023	26	3	0	29
Dec 2023	43	14	2	59
Jan 2024	44	7	2	53
Feb 2024	37	9	2	48
Mar 2024	37	19	1	57
Apr 2024	47	9	2	58
May 2024	14	14	7	35
Jun 2024	33	8	2	43
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Feb 2025	39	12	2	53
Mar 2025	17	8	0	25
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Jun 2025	33	16	0	49
Jul 2025	17	22	1	40
Aug 2025	25	24	1	50
Sep 2025	22	19	1	42
Oct 2025	23	22	3	48
Nov 2025	14	6	0	20

Latest update: 16 Nov 2025

Short summary

Effective calibration of global models is inhibited by the computational demands of 3-D simulations. As a solution for the NEMO-MEDUSA model, we present an efficient emulator of surface chlorophyll as a function of MEDUSA’s biogeochemical parameters. The emulator comprises an array of site-based 1-D simulators and a quantification of uncertainty in their predictions. It is able to produce robust probabilistic estimates of 3-D model output rapidly for comparison with satellite chlorophyll.