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WATER_CHEMICAL_DAT


Comment:
This Table contains the result of chemical analyses related to the continental terminal3 water table on the hapex square degree north of the niger river.
Principal investigator:
Christian LEDUC
The fields of the table are:
  1. GRID_ID : This column contains the name of the grid where the data was taken.
  2. GRID_ORDER : This column contains the number of the station in the grid cell.
  3. OBS_DATE : This column contains the date on which the observation was made in the format DD-MMM-YY.
  4. OBS_TIME : This column contains the time when the observation was made, in GMT.
  5. REFERE : This column contains the identification of the analyse ( DECxxx for December 91 , AVxxx for April 92 and JANxxx for January 93 ).
  6. RCA : This column contains the amount of calcium ( meq l-1 ).
  7. RMG : This column contains the amount of magnesium ( meq l-1 ).
  8. RK : This column contains the amount in potassium ( meq l-1 ).
  9. RNA : This column contains the amount of sodium ( meq l-1 ).
  10. CAT : This column contains the abbreviation of dominant cation.
  11. RHCO3 : This column contains the amount of bicarbonate ( meq l-1 ).
  12. HCO3TER : This column contains the rough proportion of bicarbonate ( mg l-1 ).
  13. RCL : This column contains the amount of chloride ( meq l-1 ).
  14. RNO3 : This column contains the amount of nitrate ( meq l-1 ).
  15. RSO4 : This column contains the amount of sulphate ( meq l-1 ).
  16. AN : This column contains the abbreviation of dominant ANION.
  17. CATIONS : This column contains the sum : RCA+RMG+RK+RNA ( meq l-1 ).
  18. ANIONS : This column contains the sum : RHCO+RCL+RNO3+RSO4 ( meq l-1 ).
  19. CONDTER : This column contains the conductivity measured on the place ( micro S cm-1 ).
  20. CONDLAB : This column contains the conductivity measured a few days or a few weeks after sample taking ( micro S cm-1 ).
  21. PHTER : This column contains the PH measured on the place.
  22. PHLAB : This column contains the PH measured during the analyze.
  23. SIO2 : This column contains the amount of silica ( mg l-1 ).
  24. FE203 : This column contains the content in iron oxides ( mg l-1 ).
  25. AL203 : This column contains the amount of aluminium oxide ( mg l-1 ).
  26. CERT_LEVEL : This column contains the certification level for the data : T)est, C)hecked by PI, U)nchecked by PI.
  27. REV_DATE : This column contains the revision date for the data in the format DD-MMM-YY.

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