Controlling instabilities along a 3DVar analysis cycle by assimilating in  the unstable subspace: a comparison with the EnKF

Carrassi, A.; Trevisan, A.; Descamps, L.; Talagrand, O.; Uboldi, F.

doi:10.5194/npg-15-503-2008

Articles | Volume 15, issue 4

https://doi.org/10.5194/npg-15-503-2008

© Author(s) 2008. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Predictability in Earth Sciences

https://doi.org/10.5194/npg-15-503-2008

© Author(s) 2008. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 15, issue 4

01 Jul 2008

| 01 Jul 2008

Controlling instabilities along a 3DVar analysis cycle by assimilating in the unstable subspace: a comparison with the EnKF

A. Carrassi, A. Trevisan, L. Descamps, O. Talagrand, and F. Uboldi

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Jul 2013	2	11	0	13
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Dec 2025	19	17	2	38
Jan 2026	33	21	7	61
Feb 2026	15	20	5	40
Mar 2026	7	4	5	16

Latest update: 17 Mar 2026