Magnetic

channel_number

channel_number	Description	Example
Required: True Type: <class ‘int’> Units: None	Channel number on the data logger.	1

channel_id

channel_id	Description	Example
Required: False Type: str | None Units: None	channel id given by the user or data logger	1001.11

comments.author

comments.author	Description	Example
Required: False Type: str | None Units: None	person who authored the comment	Pedantic

comments.time_stamp

comments.time_stamp	Description	Example
Required: False Type: float | int | numpy.datetime64 | pa ndas._libs.tslibs.timestamps.Timest Units: None	Date and time of in UTC of when comment was made.	2020-02- 01T09:23:45.453 670+00:00

comments.value

comments.value	Description	Example
Required: False Type: str | list | None Units: None	comment string	failure at midnight.

component

component	Description	Example
Required: True Type: <class ‘str’> Units: None	Component of the magnetic field.	hx

measurement_azimuth

measurement_azimuth	Description	Example
Required: True Type: <class ‘float’> Units: degrees	Horizontal azimuth of the channel in measurement coordinate system spcified in station.orientation.reference_frame. Default reference frame is a geographic right-handed coordinate system with north=0, east=90, vertical=+ downward.	0.0

measurement_tilt

measurement_tilt	Description	Example
Required: True Type: <class ‘float’> Units: degrees	Vertical tilt of the channel in measurement coordinate system specified in station.orientation.reference_frame. Default reference frame is a geographic right-handed coordinate system with north=0, east=90, vertical=+ downward.	0

sample_rate

sample_rate	Description	Example
Required: True Type: <class ‘float’> Units: samples per second	Digital sample rate	8.0

translated_azimuth

translated_azimuth	Description	Example
Required: False Type: float | None Units: degrees	Horizontal azimuth of the channel in translated coordinate system, this should only be used for derived product. For instance if you collected your data in geomagnetic coordinates and then translated them to geographic coordinates you would set measurement_azimuth=0, translated_azimuth=-12.5 for a declination angle of N12.5E.	0.0

translated_tilt

translated_tilt	Description	Example
Required: False Type: float | None Units: degrees	Tilt of channel in translated coordinate system, this should only be used for derived product. For instance if you collected your data using a tripod you would set measurement_tilt=45, translated_tilt=0 for a vertical component.	0.0

type

type	Description	Example
Required: True Type: <class ‘str’> Units: None	Data type for the channel, should be a descriptive word that a user can understand.	magnetic

units

units	Description	Example
Required: True Type: <class ‘str’> Units: None	Units of the data, should be in SI units and represented as the full name of the unit all lowercase. If a complex unit use ‘per’ and ‘-‘.	celsius

data_quality.warnings

data_quality.warnings	Description	Example
Required: False Type: str | None Units: None	any warnings about the data that should be noted	periodic pipeline noise

data_quality.good_from_period

data_quality.good_from_period	Description	Example
Required: False Type: float | None Units: None	Data are good for periods larger than this number	0.01

data_quality.good_to_period

data_quality.good_to_period	Description	Example
Required: False Type: float | None Units: None	Data are good for periods smaller than this number	1000

data_quality.flag

data_quality.flag	Description	Example
Required: False Type: int | None Units: None	Flag for data quality	0

data_quality.comments.author

data_quality.comments.author	Description	Example
Required: False Type: str | None Units: None	person who authored the comment	Pedantic

data_quality.comments.time_stamp

data_quality.comments.time_stamp	Description	Example
Required: False Type: float | int | numpy.datetime64 | pa ndas._libs.tslibs.timestamps.Timest Units: None	Date and time of in UTC of when comment was made.	2020-02- 01T09:23:45.453 670+00:00

data_quality.comments.value

data_quality.comments.value	Description	Example
Required: False Type: str | list | None Units: None	comment string	failure at midnight.

data_quality.rating.author

data_quality.rating.author	Description	Example
Required: False Type: str | None Units: None	Author of who rated the data.	gradstudent ace

data_quality.rating.method

data_quality.rating.method	Description	Example
Required: False Type: str | None Units: None	The method used to rate the data.	standard deviation

data_quality.rating.value

data_quality.rating.value	Description	Example
Required: True Type: int | None | str Units: None	A rating from 1-5 where 1 is bad and 5 is good and 0 if unrated.	4

filters

filters	Description	Example
Required: True Type: list[mt_metadata.timeseries.filtere d.AppliedFilter] Units: None	Filter data for the channel.	AppliedFilter(n ame=’filter_nam e’, applied=True, stage=1)

time_period.end

time_period.end	Description	Example
Required: True Type: str | float | int | numpy.datetime64 | pandas._libs.tsl Units: None	End date and time of collection in UTC.	2020-02- 04T16:23:45.453 670+00:00

time_period.start

time_period.start	Description	Example
Required: True Type: str | float | int | numpy.datetime64 | pandas._libs.tsl Units: None	Start date and time of collection in UTC.	2020-02- 01T09:23:45.453 670+00:00

fdsn.id

fdsn.id	Description	Example
Required: False Type: str | None Units: None	Given FDSN archive ID name.	MT001

fdsn.network

fdsn.network	Description	Example
Required: False Type: str | None Units: None	Given two character FDSN archive network code. Needs to be 2 alpha numeric characters.	EM

fdsn.channel_code

fdsn.channel_code	Description	Example
Required: False Type: str | None Units: None	Three character FDSN channel code. http://docs.fdsn.org/projects/source- identifiers/en/v1.0/channel-codes.html	LQN

fdsn.new_epoch

fdsn.new_epoch	Description	Example
Required: False Type: bool | None Units: None	Boolean telling if a new epoch needs to be created or not.	False

fdsn.alternate_code

fdsn.alternate_code	Description	Example
Required: False Type: str | None Units: None	Alternate Code	_INT-NON_FDSN .UNRESTRICTED _US-ALL _US-MT _US-MT-TA

fdsn.alternate_network_code

fdsn.alternate_network_code	Description	Example
Required: False Type: str | None Units: None	Alternate Network Code	_INT-NON_FDSN .UNRESTRICTED _US-ALL _US-MT _US-MT-TA

sensor.id

sensor.id	Description	Example
Required: False Type: str | None Units: None	Instrument ID number can be serial number or a designated ID.	mt01

sensor.manufacturer

sensor.manufacturer	Description	Example
Required: False Type: str | None Units: None	Who manufactured the instrument.	mt gurus

sensor.type

sensor.type	Description	Example
Required: False Type: str | None Units: None	Description of the instrument type.	broadband 32-bit

sensor.model

sensor.model	Description	Example
Required: False Type: str | None Units: None	Model version of the instrument.	falcon5

sensor.name

sensor.name	Description	Example
Required: False Type: str | None Units: None	Standard marketing name of the instrument.	falcon5

location.latitude

location.latitude	Description	Example
Required: False Type: float | None Units: degrees	Latitude of the location.	12.324

location.longitude

location.longitude	Description	Example
Required: False Type: float | None Units: degrees	Longitude of the location.	12.324

location.elevation

location.elevation	Description	Example
Required: False Type: <class ‘float’> Units: meters	Elevation of the location.	1234.0

location.datum

location.datum	Description	Example
Required: False Type: str | int Units: None	Datum of the location values. Usually a well known datum like WGS84.	WGS 84

location.x

location.x	Description	Example
Required: False Type: float | None Units: meters	relative distance to the center of the station	10.0

location.y

location.y	Description	Example
Required: False Type: float | None Units: meters	relative distance to the center of the station	10.0

location.z

location.z	Description	Example
Required: False Type: float | None Units: meters	relative elevation to the center of the station	10.0

h_field_min.start

h_field_min.start	Description	Example
Required: True Type: <class ‘float’> Units: None	Starting value.	1.0

h_field_min.end

h_field_min.end	Description	Example
Required: True Type: <class ‘float’> Units: None	Ending value of the range.	1.0

h_field_max.start

h_field_max.start	Description	Example
Required: True Type: <class ‘float’> Units: None	Starting value.	1.0

h_field_max.end

h_field_max.end	Description	Example
Required: True Type: <class ‘float’> Units: None	Ending value of the range.	1.0