| sta |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | sta |
| ColumnName | sta |
| Logical Rolename | |
| RoleName | |
| Definition | Station code. This is the common code-name of a seismic observatory. Generally only three or four characters are used |
| Note |
| net |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | net |
| ColumnName | net |
| Logical Rolename | |
| RoleName | |
| Definition | Unique network identifier. This character string is the name of a seismic network |
| Note |
| data_nb |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | data_nb |
| ColumnName | data_nb |
| Logical Rolename | |
| RoleName | |
| Definition | This attribute represents the datalogger number |
| Note |
| pchannel_nb |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | pchannel_nb |
| ColumnName | pchannel_nb |
| Logical Rolename | |
| RoleName | |
| Definition | This attribute denotes a physical channel |
| Note |
| lchannel_nb |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | lchannel_nb |
| ColumnName | lchannel_nb |
| Logical Rolename | |
| RoleName | |
| Definition | This attribute denotes a logical channel of a datalogger |
| Note |
| ondate |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | ondate |
| ColumnName | ondate |
| Logical Rolename | |
| RoleName | |
| Definition | This attribute denotes the start date |
| Note |
| seqfil_id |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | seqfil_id |
| ColumnName | seqfil_id |
| Logical Rolename | |
| RoleName | |
| Definition | Sequence of filters identifier. Each sequence of filters is assigned a unique integer which identifies it in a database |
| Note |
| seedchan |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | seedchan |
| ColumnName | seedchan |
| Logical Rolename | |
| RoleName | |
| Definition | SEED channel name. The first character denotes the band code, the second for the instrument code and the third represents the component code |
| Note |
| channel |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | channel |
| ColumnName | channel |
| Logical Rolename | |
| RoleName | |
| Definition | Channel name |
| Note |
| channelsrc |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | channelsrc |
| ColumnName | channelsrc |
| Logical Rolename | |
| RoleName | |
| Definition | Domain for channel. This specifies what naming convention is used for the channel name (i.e. SEED, USGS, ...) |
| Note |
| location |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | location |
| ColumnName | location |
| Logical Rolename | |
| RoleName | |
| Definition | Describes the individual sites on an array station, operated by the same network operator |
| Note |
| rgain |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | rgain |
| ColumnName | rgain |
| Logical Rolename | |
| RoleName | |
| Definition | This attribute denotes the gain at the response frequency |
| Note |
| rfrequency |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | rfrequency |
| ColumnName | rfrequency |
| Logical Rolename | |
| RoleName | |
| Definition | The frequency (fs) at which the value in rgain is correct |
| Note |
| samprate |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | samprate |
| ColumnName | samprate |
| Logical Rolename | |
| RoleName | |
| Definition | Sampling rate. This attribute is the sample rate in samples/second |
| Note |
| clock_drift |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | clock_drift |
| ColumnName | clock_drift |
| Logical Rolename | |
| RoleName | |
| Definition | A tolerance value, measured in seconds per sample, used as a thresold for time error detection in the data. The number of samples in a record are multiplied by this value to calculate a maximum drift allowed for the time in the next record. If the difference in time is less than this drift, consider them in the same time series |
| Note |
| flags |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | flags |
| ColumnName | flags |
| Logical Rolename | |
| RoleName | |
| Definition | Channel flags |
| Note |
| data_format |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | data_format |
| ColumnName | data_format |
| Logical Rolename | |
| RoleName | |
| Definition | This attribute represents the data format |
| Note |
| comp_type |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | comp_type |
| ColumnName | comp_type |
| Logical Rolename | |
| RoleName | |
| Definition | Compression type. A lookup key that refers to the Format Dictionary |
| Note |
| unit_signal |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | unit_signal |
| ColumnName | unit_signal |
| Logical Rolename | |
| RoleName | |
| Definition | A unit lookup key that refers to the Units Abbreviation Dictionary for the signal response of the instrument – usually the ground motion response, or something else for non-seismic devices |
| Note |
| unit_calib |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | unit_calib |
| ColumnName | unit_calib |
| Logical Rolename | |
| RoleName | |
| Definition | A unit lookup key that refers to the Units Abbreviation Dictionary for the units of calibration input, usually volts or amps |
| Note |
| block_size |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | block_size |
| ColumnName | block_size |
| Logical Rolename | |
| RoleName | |
| Definition | The record length of the data |
| Note |
| offdate |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | offdate |
| ColumnName | offdate |
| Logical Rolename | |
| RoleName | |
| Definition | This attribute denotes the end date |
| Note |
| remark |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | remark |
| ColumnName | remark |
| Logical Rolename | |
| RoleName | |
| Definition | An optional comment given to the instrument. It can be anything, including a serial number or a notation of special modifications |
| Note |
| lddate |
| Base Table | Station_Datalogger_LChannel |
| Attribute Name | lddate |
| ColumnName | lddate |
| Logical Rolename | |
| RoleName | |
| Definition | Load date. Date and time that the record was created or last modified, in Oracle date datatype |
| Note |