Meta Data

Common Global Attributes - Meta Data

The following global attributes are common across all data product files in the NCAS-AMF standard no matter the platform on which the instrument is deployed. 

Conventions 

Definition: The CF naming convention being followed.

Example: CF-1.6. NCAS-AMF-1.0                                  

source

Definition: From what instrument does this data product come. 

Example: NCAS Automatic Weather Station unit 1                                                

instrument_manufacturer 

Definition: Name of instrument Manufacturer

Example: Davis Instruments

instrument_model 

Definition: Instrument model number\name

Example: Vantage Pro 2 Wireless Station     

instrument_serial_number

Definition: Instrument Serial Number  

Example: 63270V                   

instrument_software

Definition: Name of software used by instrument to make the measurement

Example: R2CH               

instrument_software_version

Definition: Version number of software used by instrument to make the measurement

Example: v2.08.11

creator_name

Definition: Name of person who created this file

Example: A. Person                          

creator_email

Definition: Contact email for the person who created the file.

Example: A.Person@aplace.ac.uk                       

creator_url

Definition: ORCID URL of the person who created the file.          

Example: https://orcid.org/0000-0001-8932-9256            

institution

Definition: name of institution for whom creator works

Example: National Centre for Atmospheric Science (NCAS)              

processing_software_url         

Definition: A public URL for the processing software used to process/QC the data. NOTE: this excludes proprietary software.

Example: https://github.com/lecbjb/AMF_DATA/tree/master/matlab

processing_software_version

Definition: Version of software used to parse and QC data

Example: v1

calibration_sensitivity

Definition: To what sensitivity is the instrument calibrated

Example: Calibrated to manufacturers standard: Temperature(0.1K),RH(2%),Pressure(0.01hPa),Wind Speed(0.1ms-1),Wind Direction(22degrees),Accumulated Rain(0.01mm),Radiation(0.1 Wm-2)    

calibration_certification_date

Definition: When was the instrument last calibrated

Example: 01/01/2016

calibration_certification_url

Definition: url to page showing current calibration certificate

Example: https:\\somepage.someplace.pdf   

sampling_interval

Definition: time interval between successive values in file

Example: 1 minute       

averaging_interval

Definition: over what time interval was averaging carried out

Example: 1 minute  

product_version

Definition: Version number of data set

Example: v <n.m> n - major revision, m - minor revision

processing_level

Definition: What is the data product level of the variables in the file 

Example: 2

last_revised_date

Definition: when was this data file produced.

Example: 2013-06-06T12:00:00

project

Definition: What is the full name and associated acronym of the project

Example: Dynamics-aerosol-chemistry-cloud interactions in West Africa. (DACCIWA)

project_principal_investigator

Definition: Name of project Principle Investigator

Example: Peter Knippertz

project_principal_investigator_email

Definition: Contact email for project PI

Example: PI.name@auniversity.ac.uk

project_principal_investigator__url

Definition: ORCID URL of PI.          

Example: https://orcid.org/0000-0001-8932-9256

licence

Definition: Under what licence is this data issued

Example: Data usage licence - UK Government Open Licence agreement: http://www.nationalarchives.gov.uk/doc/open-government-licence

acknowledgement

Definition: How should NCAS be acknowledged.

Example: Acknowledgement of NCAS as the data provider is required whenever and wherever this data is used

platform

Definition: Name of the platform on which the instrument was deployed

Example: oden

platform_type

Definition: on what type of platform was the instrument deployed

Example: stationary_platform

deployment_mode 

Is the instrument deployed on land, sea, or in the air 

Example: land

title

Definition: By what title is the data product best described

Example: Point measurement of Temperature, Pressure, Relative Humidity, Wind Speed, Wind Direction, Down Welling Radiation from the NCAS Davis Automatic Weather Station 

featureType

Definition: What type of feature does the data represent

Example: timeSeries

time_coverage_start

Definition: date and time of the first data point in file

Example: 2013-02-01T00:00:00

time_coverage_end

Definition: date and time of the last data point in file

Example: 2013-03-31T23:59:59

geospatial_bounds

Definition: For a point deployment: (latitude longitude) - signed decimal. For a bounding box: top left corner, bottom right corner: (latitude longitude, latitude longitude) - signed decimal

Example:  Point deployment: -111.29N 40.26E

                Bounding box: -111.29N  40.26E, -110.29N  41.26E

platform_altitude

Definition: What is the height of the ground (wrt WGS84) of the deployment site

Example: 263m

location_keywords

Definition: Words about the location to aid archival searching

        Example: africa, ghana, kumasi, knust

amf_vocabularies_release

Definition: URL to Vocabularies repository 

Example: https://github.com/ncasuk/AMF_CVs/releases/tag/n.m.p

history

Definition: What is the revision history of this file

        Example: Data collected June - July 2016, processed & QC'd Oct 2016

comment

Definition: Opportunity to provide further data to user

Example: All AWS sensors mounted on 2m mast - sensors are at a height of +2m with respect to platform_height. Positive indicates upward direction.