Skip to contents

Flag definitions for lithology and hydrostratigraphy.

In all cases we give suggestions for how to fix the problem. However, if you believe that the record is correct, but that the flag is incorrect, please open an issue and let us know what the problem is (which flag is incorrect and why) and with which Well (well_tag_number).

You can access this list in R at any time through the flags dataset.

Many of these refer to from and to fields which are the lithology_from_ft_bgl/lithology_to_ft_bgl and lithology_from_m/lithology_to_m.

Flag Description Solution
flag_int_missing Interval missing lithologic record Check original paper log
flag_int_overlap Interval which overlaps with the next or previous interval Check original paper log, or fix in GWELLS if obvious
flag_int_gap Interval which has a gap between it and the next or previous interval Check original paper log, or fix in GWELLS if obvious
flag_int_note Interval at the start with to/from of 0/NA which marks possible notes made before the lithology records Check original paper log
flag_int_overrun Interval (not at the start) that has a depth of 0/NA to 0/NA (marks an interval as a possible overrun, where the notes from a previous record have overrun onto the next line) Check original paper log
flag_int_shortform Interval which is not the first and has a from of 0/NA and a non-missing to. Often (but not always), this indicates that the record was entered in short hand, by omitting from and only inputing the tos. Check original paper log; OR, If reasonable, fix from to be preceeding to in GWELLS
flag_int_bottom Bottom interval with zero depth. Either because to is 0/NA or because to == from. Use fix_bottom argument in wells_subset() to add 1m to this bottom interval (this is the default).
fix_int_bottom Whether the flag_int_bottom problem has been fixed or not (i.e. whether or not 1m has been added to the to bottom layer as well as to the depth of the well.
flag_lith_overruns Well with at least one overrunning interval (flag_int_overrun with missing depths). Check original paper log
flag_lith_nodepths All lithologic intervals have depths of 0/NA (from and to) Check original paper log
flag_lith_intervals At least one flag present on at least one interval in this record
flag_lith_missing No lithologic record for this well
flag_cat_bedrock Interval where Bedrock occurs with any other primary term Fix in GWELLS
flag_pos_bedrock A non-bedrock category occurs below a bedrock category Fix in GWELLS
flag_cat_boulders Interval where Boulders occur with any other primary term Fix in GWELLS
flag_cat_missing No categories were extracted from the cleaned lithologic interval Open an issue
flag_yield_mismatch Lithology where there are both depths and yields, but the number of yield measures do not match up with the number of depth measures (thus yield and depths are NA). This only applies to Hydrostratigraphy. Check original paper log
flag_yield_digits Lithology with extra digits which were not converted to a yield or depth. This only applies to Hydrostratigraphy. Fix in GWELLS
flag_depth_missing Well missing depth Check original paper log
fix_depth_missing Whether the flag_depth_missing problem has been fixed or not (i.e. whether or not Well depth has been set to the non-missing depth of the final lithology interval)
flag_depth_mismatch Well where the well depth is not equal to the non-missing depth of the final lithology interval Check original paper log