Hardware

Tracking

Schema

 

 

 

 

 

Name: azimuth

Relations: Station_Sensor_Component

Description: The azimuth of the instrument from north, clockwise.

Datatype: float

NULL Value: Yes

Range: 0.0 £ azimuth £ 360.0

Units: Degrees

Name: block_size

Relations: Station_Datalogger_LChannel

Description: The record length of the data.

Datatype: int

NULL Value: No

Range: 256 £ block_size £ 4096

Name: board_nb

Relations: Datalogger_Board, Datalogger_Module

Description: This attribute represents the board number of a datalogger.

Datatype: int

NULL Value: No

Range: board_nb ³ 1

Name: channel

Relations: Station_Datalogger_LChannel

Description: Channel name.

Datatype: char(3)

NULL Value: Yes

Range: Any valid channel name, which may be network-specific. Networks using SEED channel names should use the same value for channel and seedchan

Name: channel_comp

Relations: Sensor_Component

Description: Component channel.

Datatype: char(1)

NULL Value: Yes

Name: channelsrc

Relations: Station_Datalogger_LChannel

Description: Domain for channel. This specifies what naming convention is used for the channel name (i.e. SEED, USGS, etc.).

Datatype: char(8)

NULL Value: Yes

Range: Any free-format string up to 8 characters long

Name: clock_drift

Relations: Station_Datalogger_LChannel

Description: 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.

Datatype: float

NULL Value: Yes

Range: clock_drift ³ 0.0

Units: Seconds

Name: coefficient

Relations: Filter_FIR_Data

Description: The numerator/denominator coefficient value.

Datatype: float

NULL Value: No

Name: coeff_nb

Relations: Filter_FIR_Data

Description: The numerator/denominator number.

Datatype: int

NULL Value: No

Range: coeff_nb ³ 1

Name: comment

Relations: Station_Datalogger_LChannel

Description: An optional comment given to the instrument. It can be anything, including a serial number or a notation of special modifications.

Datatype: char(30)

NULL Value: Yes

Range: Any free-format string up to 30 characters long

Name: comp_type

Relations: Station_Datalogger_LChannel

Description: Compression type. A lookup key that refers to the Generic Abbreviation Dictionary.

Datatype: int

NULL Value: No

Name: component_nb

Relations: Sensor_Component, Station_Sensor_Component

Description: This attribute represents the component number.

Datatype: int

NULL Value: No

Range: component_nb ³ 1

Name: component_type

Relations: Sensor_Component

Description: This attribute denotes the component type.

Datatype: char(1)

NULL Value: Yes

Name: corner_freq

Relations: Response_HP, Response_LP

Description: This attribute represents the corner frequency of a high/low-pass filter.

Datatype: float

NULL Value: No

Range: corner_freq > 0.0

Units: Hertz

Name: damping_value

Relations: Response_HP, Response_LP

Description: This attribute represents the fraction of critical damping of a high/low-pass filter.

Datatype: float

NULL Value: No

Name: data_format

Relations: Station_Datalogger_LChannel

Description: This attribute represents the data format.

Datatype: char(80)

NULL Value: No

Range: data_format Î { SEED | à}

SEED = SEED format

Name: data_id

Relations: Datalogger, Datalloger_Board, Datalogger_Module, Station_Datalogger

Description: Datalogger identifier. Each datalogger is assigned a unique integer which identifies it in a database.

Datatype: int

NULL Value: No

Name: data_nb

Relations: Station_Digitizer_PChannel, Station_Datalogger, Station_Datalogger_PChannel, Station_Datalogger_LChannel

Description: This attribute represents the datalogger number.

Datatype: int

NULL Value: No

Range: data_nb ³ 1

Name: data_pchannel

Relations: Station_Digitizer_PChannel

Description: This attribute represents a datalogger physical channel.

Datatype: int

NULL Value: No

Range: data_pchannel ³ 1

Name: data_type

Relations: Datalogger

Description: This attribute represents a datalogger type.

Datatype: char(80)

NULL Value: Yes

Range: Any free-format string up to 80 characters long

Name: datumhor

Relations: Station, Station_Sensor

Description: Datum type for horizontal (latitude and longitude) coordinates.

Datatype: char(8)

NULL Value: Yes

Range: datumhor Î { NAD27 | WGS84}

Name: datumver

Relations: Station, Station_Sensor

Description: Datum type for depth or elevation.

Datatype: char(8)

NULL Value: Yes

Range: datumver Î { NAD27 | WGS84 | AVERAGE }

AVERAGE = average of stations

Name: delay

Relations: Filter

Description: The estimated pure delay for the filter.

Datatype: float

NULL Value: Yes

Units: Seconds

Name: digi_nb

Relations: Station_Digitizer, Station_Digitizer_PChannel

Description: This attribute represents the digitizer number.

Datatype: int

NULL Value: No

Range: digi_nb ³ 1

Name: digi_polarity

Relations: Station_Digitizer_PChannel

Description: This attribute represents the digitizer polarity.

Datatype: char(1)

Null Value: No

Range: digi_polarity Î { N | à }

Name: digi_type

Relations: Station_Digitizer_PChannel

Description: This attribute represents the digitizer type.

Datatype: char(3)

NULL Value: No

Range: digi_type Î { DSP | AUX }

Name: dip

Relations: Station_Sensor_Component

Description: The dip of the instrument, down from horizontal.

Datatype: float

NULL Value: Yes

Range: -90.0 £ dip £ 90.0

Units: Degrees

Name: edepth

Relations: Station_Sensor

Description: Emplacement depth. This attribute gives the depth at which the instrument is positioned, relative to the value of elev.

Datatype: float

NULL Value: Yes

Range: edepth ³ 0.0

Units: Kilometers

Name: elev

Relations: Station, Station_Sensor

Description: Elevation. This attribute is the elevation of a seismic station relative to mean sea level.

Datatype: float

NULL Value: Yes

Range: -10.0 £ elev £ 10.0

Units: Kilometers

Name: error

Relations: Filter_FIR_Data

Description: This attributes denotes the numerator/denominator error.

Datatype: float

NULL Value: Yes

Name: filamp_id

Relations: Filamp, Filamp_PChannel, Station_Filamp

Description: Filter-amplifier identifier. Each filter-amplifier is assigned a unique integer which identifies it in a database.

Datatype: int

NULL Value: No

Name: filamp_nb

Relations: Station_Filamp, Station_Filamp_PChannel

Description: This attribute represents the filter-amplifier number.

Datatype: int

NULL Value: No

Range: filamp_nb ³ 1

Name: filter_id

Relations: Filter, Filter_Sequence_Data

Description: Filter identifier. Each filter is assigned a unique integer which identifies it in a database.

Datatype: int

NULL Value: No

Name: filter_nb

Relations: Filter_Sequence_Data

Description: This attribute represents the filter number in a sequence.

Datatype: int

NULL Value: No

Range: filter_nb ³ 1

Name: filter_type

Relations: Response_HP, Response_LP

Description: This attribute denotes the type of a high/low-pass filter.

Datatype: char(2)

NULL Value: No

Range: filter_type Î { BW | DG | ND }

BW = butterworth

DG = damping given

ND = no damping

Name: fir_id

Relations: Filter_FIR, Filter_FIR_Data

Description: FIR Filter identifier. Each FIR filter is assigned a unique integer which identifies it in a database.

Datatype: int

NULL Value: No

Name: firmware_nb

Relations: Datalogger

Description: This attribute describes the firmware number of a datalogger.

Datatype: char(80)

NULL Value: Yes

Range: Any free-format string up to 80 characters long

Name: flags

Relations: Station_Datalogger_LChannel

Description: Channel flags.

Datatype: char(27)

NULL Value: Yes

Range: Any combination of {T | C | H | G | W | F | S | I | E | M | B}

T = channel is trigered

C = channel is recorded continuously

H = state of health data

G = geophysical data

W = weather or environmental data

F = flag information (nominal, not ordinal)

S = synthesized data

I = channel is a calibration input

E = channel is experimental or temporary

M = maintenance tests are underway on channel; possible abnormal data

B = data are a beam synthesis

Relations: Sensor_Component, Filter, Filter_Sequence

Units: Hertz

NULL Value: Yes

Name: hp_id

Relations: Response_HP

Description: High-pass filter identifier. Each high-pass filter is assigned a unique integer which identifies it in a database.

Datatype: int

NULL Value: No

NULL Value: Yes

NULL Value: No

Name: in_sp_rate

Relations: Filter

Description: Sampling rate. This attribute is the input sample rate in samples/second.

Datatype: float

NULL Value: No

Range: in_sp_rate > 0.0

Units: 1/seconds

Units: Degrees

Name: lchannel_nb

Relations: Station_Datalogger_LChannel

Description: This attribute denotes a logical channel of a datalogger.

Datatype: int

NULL Value: No

Range: lchannel_nb ³ 1

Name: location

Relations: Station_Datalogger_LChannel

Description: Describes the individual sites on an array station, operated by the same network operator.

Datatype: char(2)

NULL Value: Yes

Range: Any free-format string up to 2 characters long

Name: lon

Relations: Station, Station_Sensor

Description: Longitude. This attribute is the geographic longitude. Longitudes are measured positive east of the Greenwich meridian.

Datatype: float

NULL Value: Yes

Range: -180.0 £ lon £ 180.0

Units: Degrees

NULL Value: Yes

Name: lp_id

Relations: Response_LP

Description: Low-pass filter identifier. Each low-pass filter is assigned a unique integer which identifies it in a database.

Datatype: int

NULL Value: No

NULL Value: Yes

Name: module_nb

Relations: Datalogger_Module

Description: This attribute represents the module number of a dataloggerÆs board.

Datatype: int

NULL Value: No

Range: module_nb ³ 1

Range: Any free-format string up to 80 characters

Range: nb_aux_pchannel ³ 0

Range: nb_board ³ 0

Range: nb_coeff ³ 0

Range: nb_component ³ 0

Range: nb_data ³ 0

Range: nb_digi ³ 0

Range: nb_filamp ³ 0

Range: nb_filter ³ 0

Range: nb_lchannel ³ 0

Range: nb_module ³ 0

Range: nb_pchannel ³ 0

Range: nb_pole ³ 0

Range: nb_pri_pchannel ³ 0

Range: nb_sensor ³ 0

Name: net

Relations: Station, Station_Sensor, Station_Sensor_Component, Station_Filamp, Station_Filamp_PChannel, Station_Digitizer, Station_Digitizer_PChannel, Station_Datalogger, Station_Datalogger_PChannel, Station_Datalogger_LChannel

Description: Unique network identifier. This character string is the name of a seismic network.

Datatype: char(8)

NULL Value: No

Range: Any free-format string up to 8 characters long

Range: next_hard_nb ³ 1

Range: next_hard_pchannel ³ 1

D = digitizer

Name: offdate

Relations: Sensor, Filamp, Datalogger, Datalogger_Board, Datalogger_Module, Station, Station_Sensor, Station_Sensor_Component, Station_Filamp, Station_Filamp_PChannel, Station_Digitizer, Station_Digitizer_PChannel, Station_Datalogger, Station_Datalogger_PChannel, Station_Datalogger_LChannel

Description: This attribute denotes the end date.

Datatype: date

NULL Value: Yes

Range: Any valid date between January 01, 4712 BC and January 01, 4712 AD

Units: YYYY/MM/DD HH24:MI:SS

Name: offset

Relations: Filter

Description: This field determines which sample is chosen for use. The value of this field has to be greater than or equal to zero, but less than the decimation factor.

Datatype: int

NULL Value: Yes

Range: offset ³ 0

Name: ondate

Relations: Sensor, Filamp, Datalogger, Datalogger_Board, Datalogger_Module, Station, Station_Sensor, Station_Sensor_Component, Station_Filamp, Station_Filamp_PChannel, Station_Digitizer, Station_Digitizer_PChannel, Station_Datalogger, Station_Datalogger_PChannel, Station_Datalogger_LChannel

Description: This attribute denotes the start date.

Datatype: date

NULL Value: Yes

Range: Any valid date between January 01, 4712 BC and January 01, 4712 AD

Units: YYYY/MM/DD HH24:MI:SS

Name: pchannel_nb

Relations: Filamp_PChannel, Station_Filamp_PChannel, Station_Digitizer_PChannel, Station_Datalogger_PChannel, Station_Datalogger_LChannel

Description: This attribute denotes a physical channel.

Datatype: int

NULL Value: No

Range: pchannel_nb ³ 1

Name: pn_id

Relations: Response_PN, Response_PN_Data

Description: Polynomial identifier. Each polynomial is assigned a unique integer which identifies it in a database.

Datatype: int

NULL Value: No

Name: pn_nb

Relations: Response_PN_Data

Description: This attribute denotes the coefficient number of a polynomial.

Datatype: int

NULL Value: No

Range: pn_nb ³ 1

Name: pn_value

Relations: Response_PN_Data

Description: This attribute denotes the coefficient value of a polynomial.

Datatype: float

NULL Value: No

Name: poly_type

Relations: Response_PN

Description: This attribute represents the type of polynomial approximation.

Datatype: char(1)

NULL Value: No

Range: poly_type Î { C | L | M }

C = Chebychev

L = Legendre

M = MacLaurin

Name: pz_id

Relations: Response_PZ

Description: Poles & zeros set identifier. Each poles & zeros set is assigned a unique integer which identifies it in a database.

Datatype: int

NULL Value: No

Name: pz_nb

Relations: Response_PZ

Description: This attribute denotes the pole/zero number of a response.

Datatype: int

NULL Value: No

Range: pz_nb ³ 1

NULL Value: Yes

D = Digital

NULL Value: No

Name: resp_id

Relations: Response

Description: Response identifier. Each response is assigned a unique integer which identifies it

in a database.

Datatype: int

NULL Value: No

Name: resp_nb

Relations: Response

Description: This attribute denotes the response number of a sequence.

Datatype: int

NULL Value: No

Range: resp_nb ³ 1

Name: resp_type

Relations: Response

Description: This attribute denotes the response type.

Datatype: char(1)

NULL Value: No

Range: resp_type Î { H | L | P | Z | F }

H = high-pass filter

L = low-pass filter

P = polynomial

Z = poles and zeros

F = FIR filter

Units: Hertz

NULL Value: Yes

Name: samprate

Relations: Station_Datalogger_LChannel

Description: Sampling rate. This attribute is the sample rate in samples/second.

Datatype: float

NULL Value: No

Range: samprate > 0.0

Units: 1/seconds

Name: seedchan

Relations: Station_Datalogger_LChannel

Description: SEED channel name. The first character denotes the band code, the second

for the instrument code and the third represents the component code.

Datatype: char(3)

NULL Value: No

Range: seedchan Î {E | S | H | B | M | L | V | U | R} È

{A | B | D | F | G | H | I | K | L | M | P | R | S | V | T | W} È

{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

Name: seed_io

Relations: Station_Datalogger_PChannel

Description: This attribute represents the SEED instrument and orientation.

Datatype: char(2)

NULL Value: No

Range: seed_io Î {A | B | D | F | G | H | I | K | L | M | P | R | S | V | T | W} È

{Z | N | E | A | B | C | T | R | 1 | 2 | 3 | U | V | W}

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

Name: sensitivity

Relations: Sensor, Datalogger_Module

Description: This attribute denotes the sensitivity (S_d) for a sensor or a digitizer.

Datatype: float

NULL Value: No

Units: Counts/Volt

Name: sensor_id

Relations: Sensor, Sensor_Component, Station_Sensor

Description: Sensor identifier. Each sensor is assigned a unique integer which identifies it

in a database.

Datatype: int

NULL Value: No

Name: sensor_nb

Relations: Station_Sensor, Station_Sensor_Component

Description: This attribute represents the sensor number.

Datatype: int

NULL Value: No

Range: sensor_nb ³ 1

Name: seqfil_id

Relations: Filter_Sequence, Filter_Sequence_Data, Station_Datalogger_LChannel

Description: Sequence of filters identifier. Each sequence of filters is assigned a unique integer which identifies it in a database.

Datatype: int

NULL Value: No

Name: seqresp_id

Relations: Response, Sensor_Component, Filamp_PChannel, Filter

Description: Sequence of responses identifier. Each sequence of responses is assigned a unique integer which identifies it in a database.

Datatype: int

NULL Value: No

Name: serial_nb

Relations: Sensor, Filamp, Datalogger, Datalogger_Board, Datalogger_Module, Station_Digitizer

Range: Any free-format string up to 80 characters long

Name: staname

Relations: Station

Description: Station name/description. This is the full name of the station whose code-name is in sta.

Datatype: char(50)

NULL Value: Yes

Range: Any free-format string up to 50 characters long

Name: symmetry

Relations: Filter_FIR

Description: This attribute denotes the eventual symmetry of a response.

Datatype: char(1)

NULL Value: No

Range: symmetry Î { E | O | N }

E = even

O = odd

N = none

Name: type

Relations: Response_PZ, Filter_FIR_Data

Description: This attribute denotes whether a value is associated with a pole/zero or a numerator/denominator.

Datatype: char(1)

NULL Value: No

Range: type Î { P | Z | N | D }

D = denominator

Name: unit_calib

Relations: Station_Datalogger_LChannel

Description: A unit lookup key that refers to the Units Abbreviation Dictionary for the units of calibration input, usually volts or amps.

Datatype: int

NULL Value: Yes

Name: unit_in

Relations: Response

Description: A unit lookup key that refers to the Units Abbreviation Dictionary for the units of the incoming to this stage of the filter. This signal will usually be ground motion, volts, or counts, depending on where it is in the filter system.

Datatype: int

NULL Value: No

Name: unit_out

Relations: Response

Description: A unit lookup key that refers to the Units Abbreviation Dictionary for the stageÆs output signal. Analog filters usually emit volts, and digital filters usually emit counts.

Datatype: int

NULL Value: No

Name: unit_signal

Relations: Station_Datalogger_LChannel

Description: A unit lookup key that refers to the Units Abbreviation Dictionary for the signal response of the instrument û usually the ground motion response, or something else for non-seismic devices.

Datatype: int

NULL Value: No

NULL Value: Yes

Name: word_16

Relations: Datalogger

Description: 16-bit quantity byte swapping order, for the data headers only.

Datatype: int

NULL Value: No

Name: word_32

Relations: Datalogger

Description: The swap order in which 32-bit quantities are specified in the data headers.

Datatype: int

NULL Value: No