A 3DVAR land data assimilation scheme Part 1: Mathematical design

2006 ◽  
Author(s):  
Lanjun Zou ◽  
Wei Gao ◽  
Tongwen Wu ◽  
Xiaofeng Xu ◽  
Bingyu Du ◽  
...  
Keyword(s):  
Data Assimilation ◽  
Data Assimilation Scheme ◽  
Land Data Assimilation ◽  
Assimilation Scheme ◽  
Mathematical Design

A 3DVAR land data assimilation scheme: Part 2. Test with ECMWF ERA-40

2006 ◽  
Author(s):  
Lanjun Zou ◽  
Wei Gao ◽  
Tongwen Wu ◽  
Xiaofeng Xu ◽  
Bingyu Du ◽  
...  
Keyword(s):  
Data Assimilation ◽  
Data Assimilation Scheme ◽  
Land Data Assimilation ◽  
Assimilation Scheme

scholarly journals Modeling of the Melting Layer. Part IV: Brightband Bulk Parameterization

2008 ◽  
Vol 65 (6) ◽  
pp. 1991-2001 ◽  
Author(s):  
Catherine Heyraud ◽  
Wanda Szyrmer ◽  
Stéphane Laroche ◽  
Isztar Zawadzki
Keyword(s):  
Data Assimilation ◽  
Radar Data ◽  
Melting Layer ◽  
Observation Operator ◽  
Data Assimilation Scheme ◽  
Bulk Model ◽  
Assimilation Scheme ◽  
Bulk Parameterization ◽  
Good Agreement ◽  
Extract Information

Abstract In this paper a simplified UHF-band backscattering parameterization for individual melting snowflakes is proposed. This parameterization is a function of the density, shape, and melted fraction, and is used here in a brightband bulk modeling study. A 1D bulk model is developed where aggregation and breakup are neglected. Model results are in good agreement with detailed bin-model results and simulate the radar brightband observations well. It is shown the model can be seen as an observation operator that could be introduced into a data assimilation scheme to extract information contained in the radar data measurements.

The Met. Office global three-dimensional variational data assimilation scheme

2000 ◽  
Vol 126 (570) ◽  
pp. 2991-3012 ◽  
Author(s):  
A. C. Lorenc ◽  
S. P. Ballard ◽  
R. S. Bell ◽  
N. B. Ingleby ◽  
P. L. F. Andrews ◽  
...  
Keyword(s):  
Data Assimilation ◽  
Three Dimensional ◽  
Variational Data Assimilation ◽  
Data Assimilation Scheme ◽  
Assimilation Scheme

A Parallel Three-dimensional Variational Data Assimilation Scheme

2011 ◽  
Author(s):  
L. D’Amore ◽  
R. Arcucci ◽  
L. Marcellino ◽  
A. Murli ◽  
Theodore E. Simos ◽  
...  
Keyword(s):  
Data Assimilation ◽  
Three Dimensional ◽  
Variational Data Assimilation ◽  
Data Assimilation Scheme ◽  
Assimilation Scheme
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