Estimation of ground‐based GNSS Zenith Total Delay temporal observation error correlations using data from the NOAA and E‐GVAP networks
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DOI: 10.1002/qj.3448
Abstract: In preparation for possible higher frequency assimilation of ground‐based Global Navigation Satellite System (GB‐GNSS) Zenith Total Delay (ZTD) observations at Environment and Climate Change Canada (ECCC), two popular diagnostic methods are applied to observation‐minus‐background and… read more here.
Keywords: gnss; observation error; error correlations; ground based ... See more keywords
On the impact of observation‐error correlations in data assimilation, with application to along‐track altimeter data
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DOI: 10.1002/qj.5026
Abstract: Data assimilation involves estimating the state of a system by combining observations from various sources with a background estimate of the state. The weights given to the observations and background state depend on their specified… read more here.
Keywords: error correlations; data assimilation; observation error; observation ... See more keywords