| Attribute/Logical Rolename |
Domain |
Datatype |
NULL |
Definition |
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 |
| ondate |
|
DATE |
NO |
This attribute denotes the start date |
| lat |
|
FLOAT |
YES |
Latitude. This attribute is the geographic latitude. Locations north of the equator have positive latitudes |
| lon |
|
FLOAT |
YES |
Longitude. This attribute is the geographic longitude. Longitudes are measured positive east of the Greenwich meridian |
| elev |
|
FLOAT |
YES |
Elevation. This attribute is the elevation of a seismic station relative to mean sea level |
| staname |
|
VARCHAR(60) |
YES |
Station name/description. This is the full name of the station whose code-name is in sta |
net_id |
|
NUMERIC(8, 0) |
YES |
The abbreviation lookup code from the Generic Abbreviation Dictionary, that refers to the network to which the station belongs |
| word_32 |
|
NUMERIC(8, 0) |
NO |
The swap order in which 32-bit quantities are specified in the data headers |
| word_16 |
|
NUMERIC(8, 0) |
NO |
16-bit quantity byte swapping order, for the data headers only |
| offdate |
|
DATE |
YES |
This attribute denotes the end date |
| lddate |
|
DATE |
YES |
Load date. Date and time that the record was created or last modified, in Oracle date datatype |