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GRM-07 & GRM-15: Error Covariance Products
The error covariance matrix is a dataset that specifies the correlations in the observation errors between all possible pairs of vertical levels. It is given as a two-dimensional array, of size NxN , where N is the number of vertical levels in the sounding data products.
There are two basic error-covariance matrix products:
- Covariance matrix for NRT sounding data products (GRM-07 NEM)
- Covariance matrix for Offline sounding data products (GRM-15 OEM)
Each matrix can be provided in several versions reflecting variations with geographical areas (e.g. latitude) and with season.
NRT STATUS:
Expected dissemination and availability for download: Q4 2011
Offline STATUS:
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