2.5 Data Editing Limitations
At times, a bad data value might slip through your usual quality control procedures.
Ideally, you would fix all errors before starting CHPS; however, the Plots tab does provide methods for correcting non-representative data or adding new data.
You must be aware of the limitations.
Hint: Click the image to enlarge/shrink.
Data Management Limitations
Edits made in CHPS will change your local datastore. These changes are not available for others in your office until you submit the forecast run. Your edits will not be available outside your office.
Ideally, you would complete your data quality control and fix all errors before starting CHPS. This way, the corrections get into both CHPS and the archive database.
Always work with the Development and Operations Hydrologist (DOH) at your office to make sure your data editing method conforms with office policy.
Data Type Limitations
You can only edit forcings and hydrologic parameters (stage, pool elevation, etc.) in the Plots tab.
You must edit the contents of the baseflow (for example, LZTWC and UZTWC) using modifiers. See the next lesson for more information on modifiers).
LZTWC is an abbreviation for Lower Zone Tension Water, the amount of water held (in tension) between soil particles in the lower zone of the soil.
UZTWC is an abbreviation for Upper Zone Tension Water, the amount of water held (in tension) between soil particles in the upper zone of the soil.