Difference between revisions of "Background field"

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<div class="definition"><div class="short_definition">In [[objective analysis]] and [[data assimilation]], an a priori estimate of the atmospheric  state.</div><br/> <div class="paragraph">In most data assimilation systems, the background field is a forecast from the previous [[analysis]]  time. Note that the term &ldquo;first-guess field&rdquo; has been used for the background field, but &ldquo;background  field&rdquo; is currently the preferred usage.</div><br/> </div>
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<div class="definition"><div class="short_definition">In [[objective analysis]] and [[data assimilation]], an a priori estimate of the atmospheric  state.</div><br/> <div class="paragraph">In most data assimilation systems, the background field is a forecast from the previous [[analysis]]  time. Note that the term "first-guess field" has been used for the background field, but "background  field" is currently the preferred usage.</div><br/> </div>
 
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Latest revision as of 14:42, 20 February 2012



background field

In objective analysis and data assimilation, an a priori estimate of the atmospheric state.

In most data assimilation systems, the background field is a forecast from the previous analysis time. Note that the term "first-guess field" has been used for the background field, but "background field" is currently the preferred usage.