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Time  for drawdown measurements

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Time  for drawdown measurements

Time, at which a measurement of drawdown or pumping rate (for pumping at variable rate) is made. Times are measured from the start of pumping. Time is entered in one of the four columns: days, hours, minutes or seconds, the other three columns are filled in automatically. Editor saves the observation time in the units (column) of the first input. Manual input in this table is usually done when measurements were taken using the same time intervals in all observation wells. If measurements were taken at different times in different observation wells, the table "t - s" should be used. The table "t - s" is then converted to "time (drawdown)", "drawdown", "time (recovery)" and "recovery". ANSDIMAT uses "day" units for data processing.

The first observation time value should be higher than zero.

 

Tabbed dialog for aquifer test observation data input: time of drawdown / rate measurements.

 

"No" column

Measurement No

"Day" column

Input time in days

"Hour" column

Input time in hours

"Minute" column

Input time in minutes

"Second" column

Input time in seconds

"Data" column

Input time in date format. Input format options and test start time are selected in the "Options" tab

"New row" column

Adds a new time row to the end of the table. The time is applied for all observations and pumping wells

"Insert row" column

Inserts a new time row to the cursor position. The time is applied for all observations and pumping wells

"Delete row " column

Deletes the current time row. The measurements for this time are deleted for all observations and pumping wells