<p><b>xinzhang</b> 2009-04-02 16:25:35 -0600 (Thu, 02 Apr 2009)</p><p>Save for Zhiquan's changes.<br>
</p><hr noshade><pre><font color="gray">Modified: trunk/wrf/UsersGuide/users_guide_chap6.doc
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--- trunk/wrf/UsersGuide/users_guide_chap6.doc 2009-04-02 19:40:38 UTC (rev 168)
+++ trunk/wrf/UsersGuide/users_guide_chap6.doc 2009-04-02 22:25:35 UTC (rev 169)
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e. Bias Correction
-Satellite radiance is generally considered biased with respect to a reference (e.g., background or analysis field in NWP assimilation) due to system error of observation itself, reference field and RTM. Bias correction is a necessary step prior to assimilating radiance data. In WRF-Var, there are two ways of performing bias correction. One is based on Harris and Kelly (1992) method and is carried out using a set of coefficient files pre-calculated with an off-line statistics package, which will apply to a training dataset for a month-long period. The other is Variational Bias Correction (VarBC). Only VarBC is introduced here and recommended for users because of its relative simplicity in usage.
+Satellite radiance is generally considered biased with respect to a reference (e.g., background or analysis field in NWP assimilation) due to system error of observation itself, reference field and RTM. Bias correction is a necessary step prior to assimilatin
g radiance data. In WRF-Var, there are two ways of performing bias correction. One is based on Harris and Kelly (2001) method and is carried out using a set of coefficient files pre-calculated with an off-line statistics package, which will apply to a training dataset for a month-long period. The other is Variational Bias Correction (VarBC). Only VarBC is introduced here and recommended for users because of its relative simplicity in usage.
f. Variational Bias Correction
@@ -1090,10 +1090,10 @@
-WRF-ARW V3: Users Guide 6- PAGE 32
+WRF-ARW V3: Users Guide 6- PAGE 24
-WRF-ARW V3: Users Guide 6- PAGE 33
+WRF-ARW V3: Users Guide 6- PAGE 49
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