| Metadata | Start Date | End Date | Comment |
|---|---|---|---|
|
CE01ISSM-MFD35-06-PHSEND000 Method: telemetered Stream: phsen_abcdef_dcl_instrument |
5/11/18, 8:30 AM | 6/1/18, 7:30 AM |
A review of the pH data and the signal and reference values suggests the system may have become blocked on May 11th through to June 1st. The blockage appears to have cleared, but the raw signal counts are still lower than ideal based upon the vendor documentation. Users should be cautious when using the data from this time period.
Id: 1470
By: wingardc
|
|
CE01ISSM-MFD35-06-PHSEND000 Method: telemetered Stream: phsen_abcdef_dcl_instrument |
12/15/18, 7:00 PM |
The signal intensities for the PHSEN on the MFN have dropped well below the minimum level required by the manufacturer for a valid calculation of pH. All indications are that signal pathway has either fouled or become clogged with sediment. Resulting pH calculations should be considered suspect
Id: 1544
By: wingardc
|
| Id | Parameter | Display Name | Standard Name | Unit | Fill Value | Precision | Identifier | Type | Level |
|---|---|---|---|---|---|---|---|---|---|
| PD7 | time | Time, UTC | time | seconds since 1900-01-01 | -9999999 | ||||
| PD10 | port_timestamp | Port Timestamp, UTC | seconds since 1900-01-01 | -9999999 | |||||
| PD11 | driver_timestamp | Driver Timestamp, UTC | seconds since 1900-01-01 | -9999999 | |||||
| PD12 | internal_timestamp | Internal Timestamp, UTC | seconds since 1900-01-01 | -9999999 | |||||
| PD16 | preferred_timestamp | Preferred Timestamp | 1 | empty | |||||
| PD353 | unique_id | Instrument Unique ID | 1 | 0 | |||||
| PD355 | record_type | Record Type | 1 | 0 | |||||
| PD356 | record_time | Record Time, UTC | seconds since 1904-01-01 | 0 | |||||
| PD357 | light_measurements | Light Measurements | counts | -9999 | |||||
| PD358 | voltage_battery | Voltage Battery | counts | -9999 | |||||
| PD863 | ingestion_timestamp | Ingestion Timestamp, UTC | seconds since 1900-01-01 | -9999 | |||||
| PD932 | thermistor_start | Thermistor Resistivity at Start of Measurement | counts | -9999 | |||||
| PD933 | reference_light_measurements | Array of Reference Light Measurements | counts | -9999 | |||||
| PD935 | thermistor_end | Thermistor Resistivity at End of Measurement | counts | -9999 | |||||
| PD938 | phsen_thermistor_temperature | Thermistor Temperature at End of Measurement | V | -9999999 | ABSTHRM_L1 | Science Data | L1 | ||
| PD2228 | passed_checksum | Checksum Result | 1 | -99 | |||||
| PD2605 | dcl_controller_timestamp | DCL Controller Timestamp | 1 | empty | |||||
| PD2767 | phsen_abcdef_ph_seawater | pH | sea_water_ph_reported_on_total_scale | 1 | -9999999 | PHWATER_L1 | Science Data | L1 | |
| PD3691 | phsen_abcdef_signal_intensity_434 | Optical Aborbance Signal Intensity at 434 Nm | counts | -9999999 | PH434SI_L0 | Unprocessed Data | L0 | ||
| PD3692 | phsen_abcdef_signal_intensity_578 | Optical Absorbance Signal Intensity at 578 Nm | counts | -9999999 | PH578SI_L0 | Unprocessed Data | L0 |