Articles | Volume 19, issue 5
https://doi.org/10.5194/npg-19-541-2012
https://doi.org/10.5194/npg-19-541-2012
Research article
 | 
25 Sep 2012
Research article |  | 25 Sep 2012

Estimation and calibration of observation impact signals using the Lanczos method in NOAA/NCEP data assimilation system

M. Wei, M. S. F. V. De Pondeca, Z. Toth, and D. Parrish

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