| Attribute/Logical Rolename |
Domain |
Datatype |
NULL |
Definition |
wfid |
|
NUMERIC(15, 0) |
NO |
Waveform identifier. The key field is a unique identifier for a segment of digital waveform data |
| net |
|
VARCHAR(8) |
NO |
Unique network identifier. This character string is the name of a seismic network |
| sta |
|
VARCHAR(6) |
NO |
Station code. This is the common code-name of a seismic observatory. Generally only three or four characters are used |
| auth |
|
VARCHAR(15) |
NO |
The auth field specifies the source of the information. This may be a network identifier (FDSN or otherwise), or any other string indicating the source of the information in the record
|
| subsource |
|
VARCHAR(8) |
YES |
A second identifier to specify a unique source within the domain specified by auth |
| channel |
|
VARCHAR(8) |
YES |
Channel name |
| channelsrc |
|
VARCHAR(8) |
YES |
Domain for channel. This specifies what naming convention is used for the channel name (i.e. SEED, USGS, etc.) |
| seedchan |
|
VARCHAR(3) |
NO |
SEED channel name. The first character denotes the band code, the second for the instrument code and the third represents the component code
|
| location |
|
VARCHAR(2) |
YES |
Describes the individual sites on an array station, operated by the same network operator |
| archive |
|
VARCHAR(8) |
NO |
This field specifies the place where the seismogram is archived |
| datetime_on |
|
NUMERIC(25, 10) |
NO |
Time of first datum |
| datetime_off |
|
NUMERIC(25, 10) |
NO |
Time of last datum |
| samprate |
|
FLOAT |
NO |
Sampling rate. This attribute is the sample rate in samples/second |
| wavetype |
|
VARCHAR(1) |
YES |
This attribute denotes the type of waveform |
fileid |
|
NUMERIC(15, 0) |
NO |
Filename identifier. The key field is a unique identifier for a physical file on a disk |
| foff |
|
NUMERIC(12, 0) |
YES |
File offset. This is the byte offset of a waveform segment within a data file. If the segment does not contain header information, this value is equal to traceoff |
| nbytes |
|
NUMERIC(10, 0) |
YES |
Number of bytes. This quantity is the number of bytes in a waveform segment or a file. If the segment does not contain header information, this value is equal to tracelen; otherwise nbytes = headerlen + tracelen |
| traceoff |
|
NUMERIC(10, 0) |
YES |
Trace offset. This is the byte offset of the entire trace |
| tracelen |
|
NUMERIC(10, 0) |
YES |
Number of bytes. This quantity represents the length of the entire trace |
| status |
|
VARCHAR(1) |
NO |
This attribute denotes the status of the waveform in the file |
| wave_fmt |
|
NUMERIC(2, 0) |
YES |
Waveform type |
| format_id |
|
NUMERIC(2, 0) |
YES |
This attribute denotes a code indicating the encoding format. This number is assigned by the FDSN Data Exchange Working Group |
| wordorder |
|
NUMERIC(1, 0) |
YES |
Word order |
| recordsize |
|
NUMERIC(5, 0) |
YES |
Record size for data. For MiniSEED, the value is the MiniSEED record size, eg. 512, 4096, etc |
| locevid |
|
VARCHAR(12) |
YES |
Local event identifier. This attribute describes the original event identifier of the event. In combination with auth and subsource, it can be used to uniquely identify the original event identifier from that source. For example, waveforms from the original source may be associated with this identifier |
| qc_level |
|
CHAR(1) |
NO |
This flag specifies the Data Header/Quality indicator flag for the specified waveform.
Reference: SEED manual in Fixed Section of Data Header.
For non-MiniSEED data, this would be the MiniSEED flag to be used
if the data would be converted to MiniSEED. |
| lddate |
|
DATE |
NO |
Load date. Date and time that the record was created or last modified
|