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public:vievs_manual:global_parameter_estimation:tidal_erp_variations [2020/07/28 10:40]
senglich [Tips and tricks]
public:vievs_manual:global_parameter_estimation:tidal_erp_variations [2020/07/28 10:41] (current)
senglich [Tips and tricks]
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 If you want to estimate the full set of tidal terms listed in the above mentioned file (tidalERPvar_list.txt),​ you should include at least 19 years of observations in the solution, otherwise the terms which are closely together in frequency cannot be separated and the results become unreliable. When processing a shorter time span the number of estimated terms has to be reduced accordingly (in tidalERPvar_globest.txt).\\ If you want to estimate the full set of tidal terms listed in the above mentioned file (tidalERPvar_list.txt),​ you should include at least 19 years of observations in the solution, otherwise the terms which are closely together in frequency cannot be separated and the results become unreliable. When processing a shorter time span the number of estimated terms has to be reduced accordingly (in tidalERPvar_globest.txt).\\
 It is recommended to set up all five EOP as parameters in 24h intervals with tight constraints in the single session solution and reduce them in the global solution.\\ It is recommended to set up all five EOP as parameters in 24h intervals with tight constraints in the single session solution and reduce them in the global solution.\\
-Note that there will be less retrograde terms than prograde terms, because retrograde diurnal polar motion is regarded as nutation per convention. All residual retrograde diurnal signal is absorbed ​in the celestial pole offsets. ​+Note that there will be less retrograde terms than prograde terms, because retrograde diurnal polar motion is regarded as nutation per convention. All residual retrograde diurnal signal is absorbed ​by the celestial pole offsets. ​
  
  
  
public/vievs_manual/global_parameter_estimation/tidal_erp_variations.txt ยท Last modified: 2020/07/28 10:41 by senglich