| ampid |
| Base Entity | amp |
| Attribute Name | ampid |
| Logical Rolename | |
| ColumnName | ampid |
| RoleName | |
| Definition | Amplitude identification. Each amplitude is assigned a unique positive integer identifying it. This number is used in the AssocAmO relation along with the origin identifier to link Amp and Origin. This number is used also in the AssocAmM relation along with the magnitude identifier to link Amp and Netmag |
| Note | Range: ampid > 0 |
| commid |
| Base Entity | amp |
| Attribute Name | commid |
| Logical Rolename | |
| ColumnName | commid |
| RoleName | |
| Definition | Comment identification. This is a key used to point to free-form comments entered in the Remark relation. These comments store additional information about a tuple in another relation. Within the Remark relation, there may be many tuples with the same commid and different lineno, but the same commid will appear in only one other tuple among the rest of the relations in the database |
| Note | Range: commid > 0 |
| datetime |
| Base Entity | amp |
| Attribute Name | datetime |
| Logical Rolename | |
| ColumnName | datetime |
| RoleName | |
| Definition | The date of associated with information in the record, in true epoch format * In the current real time system, we know the exact amplitude time as well as the window. Therefore, we can set values for the datetime, wstart & duration fields. * In the case where we know only the time of the amplitude but not the window, we set: datetime = [AMPLITUDE TIME] wstart = [AMPLITUDE TIME] duration = 0 * In the case where we do not know the amplitude time nor the window, we set: datetime = NULL wstart = [ORIGIN TIME] duration = NULL |
| Note | Range: Any valid float. datetime = 0.0 on January 01, 1970 at 00:00:00.0000 Units: Seconds |
| sta |
| Base Entity | amp |
| Attribute Name | sta |
| Logical Rolename | |
| ColumnName | sta |
| RoleName | |
| Definition | Station code. This is the common code-name of a seismic observatory. Generally only three or four characters are used |
| Note | Range: Any free-format string up to 6 characters |
| net |
| Base Entity | amp |
| Attribute Name | net |
| Logical Rolename | |
| ColumnName | net |
| RoleName | |
| Definition | Unique network identifier. This character string is the name of a seismic network |
| Note | Range: Any free-format string up to 8 characters. If available, use the two character FDSN code for the network |
| auth |
| Base Entity | amp |
| Attribute Name | auth |
| Logical Rolename | |
| ColumnName | auth |
| RoleName | |
| Definition | 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 |
| Note | Range: Any free-format string up to 15 characters |
| subsource |
| Base Entity | amp |
| Attribute Name | subsource |
| Logical Rolename | |
| ColumnName | subsource |
| RoleName | |
| Definition | A second identifier to specify the system or process that derived the data. e.g., the origin's AUTH is CI, but the subsource (the solution) was computed by JIGGLE |
| Note | Range: Any free-format string up to 8 characters |
| channel |
| Base Entity | amp |
| Attribute Name | channel |
| Logical Rolename | |
| ColumnName | channel |
| RoleName | |
| Definition | Channel name |
| Note | Range: Any valid channel name, which may be network-specific. Networks using SEED channel names should use the same value for channel and seedchan |
| channelsrc |
| Base Entity | amp |
| Attribute Name | channelsrc |
| Logical Rolename | |
| ColumnName | channelsrc |
| RoleName | |
| Definition | Domain for channel. This specifies what naming convention is used for the channel name (i.e. SEED, USGS, etc.) |
| Note | Range: Any free-format string up to 8 characters long |
| seedchan |
| Base Entity | amp |
| Attribute Name | seedchan |
| Logical Rolename | |
| ColumnName | seedchan |
| 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 | Range: seedchan = {E | S | H | B | M | L | V | U | R} U {A | B | D | F | G | H | I | K | L | M | P | R | S | V | T | W} U {Z | N | E | A | B | C | T | R | 1 | 2 | 3 | U | V | W} Band code: Sample rate (Hz) Corner period (sec) E = extremely short period ³ 80 < 10 S = short period ³ 10 to < 80 < 10 H = high broad band ³ 80 ³ 10 B = broad band ³ 10 to < 80 ³ 10 M = mid period > 1 to < 10 L = long period ~ 1 V = very long period ~ 0.1 U = ultra long period ~ 0.01 R = extremely long period ~ 0.001 Instrument code: A = tiltmeter B = creepmeter D = pressure F = magnetometer G = gravimeter/accelerometer H = high gain seismometer I = humidity K = temperature L = low gain seismometer M = mass position seismometer P = geophone R = rainfall S = linear strainmeter V = volumetric strain T = tide meter W = wind Component code: N = north-south E = east-west T = transverse R = radial Z = vertical A, B, C = triaxial 1, 2, 3 = orthogonal components but non-traditional orientations U, V, W = optional components |
| location |
| Base Entity | amp |
| Attribute Name | location |
| Logical Rolename | |
| ColumnName | location |
| RoleName | |
| Definition | Describes the individual sites on an array station, operated by the same network operator |
| Note | Range: Any free-format string up to 2 characters long |
| iphase |
| Base Entity | amp |
| Attribute Name | iphase |
| Logical Rolename | |
| ColumnName | iphase |
| RoleName | |
| Definition | Reported phase. This eight-character field holds the name initially given to a seismic phase. Standard seismological labels for the types of signals (or phases) are used (e.g., P, PKP, PcP, pP). Both upper and lower case letters are available and should be used when appropriate, for example, pP or PcP |
| Note | Range: Any free-format string up to 8 characters |
| amplitude |
| Base Entity | amp |
| Attribute Name | amplitude |
| Logical Rolename | |
| ColumnName | amplitude |
| RoleName | |
| Definition | Amplitude in appropriate units for type |
| Note | Range: amplitude > 0.0 |
| amptype |
| Base Entity | amp |
| Attribute Name | amptype |
| Logical Rolename | |
| ColumnName | amptype |
| RoleName | |
| Definition | Amplitude type |
| Note | Range: amptype = {WA | WAS | WASF | PGA | PGV | PGD | WAC | WAU | IV2 | SP.3 | SP1.0 | SP3.0 | ML100 | ME100 | EGY} WA = Wood-Anderson photographic WAS = Wood-Anderson synthetic WASF = Wood-Anderson synthetic that has had extra filtering PGA = peak ground acceleration PGV = peak ground velocity PGD = peak ground displacement WAC = Wood-Anderson corrected WAU = Wood-Anderson uncorrected IV2 = integral of velocity squared SP.3 = spectral peak SP1.0 = spectral peak SP3.0 = spectral peak ML100 = local magnitude ME100 = energy magnitude EGY = energy |
| units |
| Base Entity | amp |
| Attribute Name | units |
| Logical Rolename | |
| ColumnName | units |
| RoleName | |
| Definition | Units of amplitude |
| Note | Range: units = {c | s | mm | cm | m | ms | mss | cms | cmss | mms | mmss | mc | nm | e | cmcms} c = counts s = seconds mm = millimeters cm = centimeters m = meters ms = meters per second mss = meters per second per second cms = centimeters per second cmss = centimeters per second per second mms = millimeters per second mmss = millimeters per second per second mc = microns nm = nanometers e = ergs cmcms = cm^2 * sec |
| ampmeas |
| Base Entity | amp |
| Attribute Name | ampmeas |
| Logical Rolename | |
| ColumnName | ampmeas |
| RoleName | |
| Definition | Amplitude measure |
| Note | Range: ampmeas = {0 | 1} 0 = peak-to-peak 1 = zero-to-peak |
| eramp |
| Base Entity | amp |
| Attribute Name | eramp |
| Logical Rolename | |
| ColumnName | eramp |
| RoleName | |
| Definition | Uncertainty in amplitude measurement |
| Note | Range: eramp >= 0.0 |
| flagamp |
| Base Entity | amp |
| Attribute Name | flagamp |
| Logical Rolename | |
| ColumnName | flagamp |
| RoleName | |
| Definition | This attribute is a flag to indicate whether amplitude is over P packet, S packet, entire waveform, etc |
| Note | Range: flagamp = {SUR | P | S | ALL} SUR = surface wave P = P packet S = S packet ALL = entire waveform |
| per |
| Base Entity | amp |
| Attribute Name | per |
| Logical Rolename | |
| ColumnName | per |
| RoleName | |
| Definition | Signal period. This attribute is the period of the signal described by the amplitude record |
| Note | Range: per > 0.0 Units: Seconds |
| snr |
| Base Entity | amp |
| Attribute Name | snr |
| Logical Rolename | |
| ColumnName | snr |
| RoleName | |
| Definition | Signal-to-noise ratio. This is an estimate of the signal relative to that of the noise immediately preceding it |
| Note | Range: snr > 0.0 |
| tau |
| Base Entity | amp |
| Attribute Name | tau |
| Logical Rolename | |
| ColumnName | tau |
| RoleName | |
| Definition | Coda duration (F-P time) |
| Note | Range: tau > 0.0 Units: Seconds |
| quality |
| Base Entity | amp |
| Attribute Name | quality |
| Logical Rolename | |
| ColumnName | quality |
| RoleName | |
| Definition | This attribute describes the completeness of the time window of data. A complete time window is 1.0, an incomplete time window is 0.0. If an incomplete time window has been human-reviewed and the analyst is confident that the peak amplitude was recorded and properly computed despite the presence of data gaps, the value is set to 0.5 to indicate the window contains data gaps, but is usable |
| Note | Range: 0.0 <= quality <= 1.0 |
| rflag |
| Base Entity | amp |
| Attribute Name | rflag |
| Logical Rolename | |
| ColumnName | rflag |
| RoleName | |
| Definition | This flag describes whether an observation was generated automatically, by a human, or has been finalized |
| Note | Range: rflag = {A | H | F} A = automatic H = reviewed by human F = finalized |
| cflag |
| Base Entity | amp |
| Attribute Name | cflag |
| Logical Rolename | |
| ColumnName | cflag |
| RoleName | |
| Definition | This flag indicates whether the amplitude value is below noise, on scale or clipped |
| Note | Range: cflag in { BN | OS | CL} BN = below noise OS = on scale CL = clipped |
| wstart |
| Base Entity | amp |
| Attribute Name | wstart |
| Logical Rolename | |
| ColumnName | wstart |
| RoleName | |
| Definition | Start of time window of amplitude measurement * In the current real time system, we know the exact amplitude time as well as the window. Therefore, we can set values for the datetime, wstart & duration fields. * In the case where we know only the time of the amplitude but not the window, we set: datetime = [AMPLITUDE TIME] wstart = [AMPLITUDE TIME] duration = 0 * In the case where we do not know the amplitude time nor the window, we set: datetime = NULL wstart = [ORIGIN TIME] duration = NULL |
| Note | Range: Any valid float. wstart = 0.0 on January 01, 1970 at 00:00:00.0000 Units: Seconds |
| duration |
| Base Entity | amp |
| Attribute Name | duration |
| Logical Rolename | |
| ColumnName | duration |
| RoleName | |
| Definition | Duration of amplitude reading * In the current real time system, we know the exact amplitude time as well as the window. Therefore, we can set values for the datetime, wstart & duration fields. * In the case where we know only the time of the amplitude but not the window, we set: datetime = [AMPLITUDE TIME] wstart = [AMPLITUDE TIME] duration = 0 * In the case where we do not know the amplitude time nor the window, we set: datetime = NULL wstart = [ORIGIN TIME] duration = NULL |
| Note | Range: duration > 0.0 Units: Seconds |
| lddate |
| Base Entity | amp |
| Attribute Name | lddate |
| Logical Rolename | |
| ColumnName | lddate |
| RoleName | |
| Definition | Load date. Date and time that the record was created, in Oracle date datatype |
| Note | Range: Any valid date between January 01, 4712 BC and January 01, 4712 AD Units: YYYY/MM/DD HH24:MI:SS |