Analyses of altimetry errors using Argo and GRACE data

Legeais, Jean-François; Prandi, Pierre; Guinehut, Stéphanie

doi:10.5194/os-12-647-2016

Articles | Volume 12, issue 3

https://doi.org/10.5194/os-12-647-2016

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

https://doi.org/10.5194/os-12-647-2016

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

Articles | Volume 12, issue 3

Research article

|

13 May 2016

Research article |

| 13 May 2016

Analyses of altimetry errors using Argo and GRACE data

Jean-François Legeais, Pierre Prandi, and Stéphanie Guinehut

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Aug 2024	34	3	1	38
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Nov 2024	12	6	1	19
Dec 2024	8	8	2	18
Jan 2025	10	4	1	15
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Mar 2025	26	9	5	40
Apr 2025	10	10	0	20
May 2025	14	10	1	25
Jun 2025	38	21	0	59
Jul 2025	19	22	4	45
Aug 2025	28	8	3	39
Sep 2025	35	25	2	62
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Dec 2025	21	22	3	46
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Feb 2026	25	16	1	42
Mar 2026	15	6	3	24

Cumulative views and downloads (calculated since 18 Jan 2016)

Month	HTML	PDF	XML	Total
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Feb 2016	48	17	1	66
Mar 2016	44	11	0	55
Apr 2016	17	7	2	26
May 2016	73	27	5	105
Jun 2016	14	13	2	29
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Feb 2025	28	12	3	43
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Apr 2025	10	10	0	20
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Jul 2025	19	22	4	45
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Nov 2025	28	36	3	67
Dec 2025	21	22	3	46
Jan 2026	33	29	6	68
Feb 2026	25	16	1	42
Mar 2026	15	6	3	24

Latest update: 14 Mar 2026

Short summary

Sea level is a key indicator of climate change and has been monitored by satellite altimetry for more than 2 decades. The evaluation of the performances of the altimeter missions can be performed by comparison with in situ-independent measurements from Argo profiling floats. This allows for the detection of altimeter drift and the estimation of the impact of a new altimeter standard. This study aims at characterizing the errors of the method thanks to sensitivity analyses to different parameters.