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[ferret_users] Trouble creating an ensemble in Pyferret.



I’m trying to read 2 data sets and make them into an ensemble.  Each data set has several, but not all, variables in common.  When I read them into Pyferret v. 7.6.5, Pyferret cannot find any variable names with the same grids in common, but that is not true.  Most of my variables on the same grid are in each data set.  Below is the Pyferret session.  Any suggestions?


yes? use Bottom_Trawl_Survey_2008/ctd_data_combined/hydrography_bttm_2008
yes? use Bottom_Trawl_Survey_2019/ctd_data_combined/hydrography_bttm_2019
yes? 
yes? set data 1
yes? sh attributes .
     attributes for dataset: Bottom_Trawl_Survey_2008/ctd_data_combined/hydrography_bttm_2008.nc
 ..Conventions = CF-1.6 
 ..history = FERRET V7 (opt) 26-Oct-16 
yes? 
yes? define data/aggregate/E/title="Bottom Trawl Survey 2008-2019" hydrography_bttm = Bottom_Trawl_Survey_2008/ctd_data_combined/hydrography_bttm_2008, Bottom_Trawl_Survey_2019/ctd_data_combined/hydrography_bttm_2019
           *** NOTE: Variable "Z_DEEPEST" excluded from aggregate: X axis differs among members
           *** NOTE: Variable "DEPTH2D" excluded from aggregate: X axis differs among members
           *** NOTE: Variable "TEMP_BTTM" excluded from aggregate: X axis differs among members
           *** NOTE: Variable "CON_BTTM" excluded from aggregate: X axis differs among members
           *** NOTE: Variable "SAL_BTTM" excluded from aggregate: X axis differs among members
           *** NOTE: Variable "SIGMA_T_BTTM" excluded from aggregate: X axis differs among members
           *** NOTE: Variable "DYN_HT_ANOM_BTTM" excluded from aggregate: X axis differs among members
           *** NOTE: Variable "BAT_BTTM" excluded from aggregate: X axis differs among members
           *** NOTE: Variable "THETA_0" excluded from aggregate: Not found in all member datasets
           *** NOTE: Variable "SIGMA_0" excluded from aggregate: Not found in all member datasets
           *** NOTE: Variable "WATER_MASS" excluded from aggregate: Not found in all member datasets
           *** NOTE: Variable "WATER_MASS_SIGMA_0" excluded from aggregate: Not found in all member datasets
 **ERROR: error defining aggregate dataset: No valid datasets or datasets share no variables that can be aggregated.
yes? sh data
     currently SET data sets:
    1> Bottom_Trawl_Survey_2008/ctd_data_combined/hydrography_bttm_2008.nc  (default)
 name     title                             I         J         K         L
 Z_DEEPEST
          Deepest Depth Sampled            1:32      1:35      ...       ...
 DEPTH2D  Bottom Depth                     1:32      1:35      ...       ...
 TEMP_BTTM
          Bottom Temperature               1:32      1:35      ...       ...
 CON_BTTM Bottom conductivity              1:32      1:35      ...       ...
 SAL_BTTM Bottom Salinity                  1:32      1:35      ...       ...
 SIGMA_T_BTTM
          Bottom Sigma-t                   1:32      1:35      ...       ...
 DYN_HT_ANOM_BTTM
          Bottom Dyn. Ht. Anomaly          1:32      1:35      ...       ...
 BAT_BTTM Bottom Battery Voltage           1:32      1:35      ...       ...
 THETA_0  Potential Temperature, ref to 0  1:32      1:35      ...       ...
 SIGMA_0  Potential Density Anomaly, ref   1:32      1:35      ...       ...
 WATER_MASS
          Water Mass Type                  1:32      1:35      ...       ...
 WATER_MASS_SIGMA_0
          Water Mass Type                  1:32      1:35      ...       ...
 
    2> Bottom_Trawl_Survey_2019/ctd_data_combined/hydrography_bttm_2019.nc
 name     title                             I         J         K         L
 Z_DEEPEST
          Deepest Depth Sampled            1:32      1:35      ...       ...
 DEPTH2D  Bottom Depth                     1:32      1:35      ...       ...
 TEMP_BTTM
          Bottom Temperature               1:32      1:35      ...       ...
 CON_BTTM Bottom conductivity              1:32      1:35      ...       ...
 SAL_BTTM Bottom Salinity                  1:32      1:35      ...       ...
 SIGMA_T_BTTM
          Bottom Sigma-t                   1:32      1:35      ...       ...
 DYN_HT_ANOM_BTTM
          Bottom Dyn. Ht. Anomaly          1:32      1:35      ...       ...
 BAT_BTTM Bottom Battery Voltage           1:32      1:35      ...       ...
 
yes? 
______________________________________________

Edward (Ned) D. Cokelet, Ph.D. Oceanographer
NOAA/PMEL
7600 Sand Point Way NE
Seattle, WA 98115-6349
Office:   206-526-6820
Mobile:  360-275-2001
Fax:      206-526-6485

Edward.D.Cokelet@xxxxxxxx

The contents of this message are mine personally and do not necessarily reflect any position of the Government or the National Oceanic and Atmospheric Administration.



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