CH₄ _ SUM6002 _ surface - insitu _ INSTAAR _ data1

Data Policy

GAW Data Policy

"For Scientific purposes, access to these data is unlimited and provided without charge. By their use you accept that an offer of co-authorship will be made through personal contact with the data providers or owners whenever substantial use is made of their data. In all cases, an acknowledgement must be made to the data providers or owners and to the data centre when these data are used within a publication."

Version

2025-01-01-0034 (Last updated: 2024-12-24)

File

This data set is submitted by INSTAAR.

DL	Gas Species	Station/Mobile	Organization	Type	Period	Filename	Size	Plot
	CH₄	Summit	INSTAAR	daily	2012-05-01 00:00:00 - 2016-12-31 00:00:00	ch4_sum6002_surface-insitu_34_9999-9999_daily	(Text: 0.28MB ; NetCDF: 0.42MB )	png
	CH₄	Summit	INSTAAR	monthly	2012-05-01 00:00:00 - 2016-12-01 00:00:00	ch4_sum6002_surface-insitu_34_9999-9999_monthly	(Text: 0.02MB ; NetCDF: 0.03MB )	png

Text NetCDF

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Organization

NO	34
Acronym	INSTAAR
Name	Institute of Arctic and Alpine Research, University of Colorado
Address 1	Institute of Arctic and Alpine Research
Address 2	University of Colorado
Address 3	Campus Box 450 Boulder, CO 80309-0450 USA
Country/Territory	United States of America
Website	https://instaar.colorado.edu/

Contact(s)

Last updated date	2018-06-01
Name	Jacques Hueber
Prefix
Email	jacques.hueber@colorado.edu
Organization No	34
Organization acronym	INSTAAR
Organization name	Institute of Arctic and Alpine Research, University of Colorado
Organization country/territory	United States of America
Address 1
Address 2
Address 3	INSTAAR, Univ. of Colorado 1560, 30th Street UCB 450 Boulder, CO 80309 U.S.A.
Country/territory	United States of America
Tel
Fax

Last updated date	2018-06-01
Name	Detlev Helmig
Prefix
Email	detlev.helmig@colorado.edu
Organization No	34
Organization acronym	INSTAAR
Organization name	Institute of Arctic and Alpine Research, University of Colorado
Organization country/territory	United States of America
Address 1
Address 2
Address 3	INSTAAR, Univ. of Colorado 1560, 30th Street UCB 450 Boulder, CO 80309 U.S.A.
Country/territory	United States of America
Tel
Fax

Collaborator(s)

NO	89
Acronym	NSF
Name	National Science Foundation

Aim of Observation

Background observation

Data Time zone

UTC-02:00

Unit

ppb

Calibration Scale

9999-12-31 00:00:00 - 9999-12-31 23:59:59: Unknown

Instrument(s)

9999-12-31 00:00:00 - 9999-12-31 23:59:59: Unknown(Gas chromatography (FID))

Intake Height above ground level

9999-12-31 00:00:00 - 9999-12-31 23:59:59: 10 (m)

Sampling Frequency

3 hours

Measurement Calibration

Injection of whole air standards, precision is on the order of 0.3-0.4%
Scale : Ambients are quantified against NOAA(CC324514, 2066.611) and NOAA(CB08849, 1864.339) standards.

Data Processing

Data for daily medians were filtered by removing points outside the second standard deviation of a 24-point (~3 day) moving median.

Processing for averaging

[Hourly]
[Daily] Data are daily medians, derived from 1 to 20 samples in a day. Most daily averages are derived from 6-8 samples, taken roughly 3 hours apart.
[Monthly]

Original Data Quality Flag

Data Quality Flag (Valid/Invalid)

Observation Status

Temporarily suspended

Description

Data are daily medians, derived from 1 to 20 samples in a day. Most daily averages are derived from 6-8 samples, taken roughly 3 hours apart. Average of 7-8 ambient samples per day. Each ambient sample is analyzed and quantified using a standard injection taken within 10 minutes of the sample.
These measurements were funded through the US National Science Foundation (NSF) Arctic Observing Network (AON) grant #1108391.

Meteorological Data Availability
(1: Available)

Wind direction:
Wind speed:
Relative humidity:
Precipitation amount:
Air pressure:
Air temperature:
Dew point temperature:
Sea water temperature:
Sea surface water temperature:
Sea water salinity:
Sea surface water salinity:

Meteorological Data Description

Meteorological data may remain as first provided, even when greenhouse gas data are updated.

No DOI available

Related information

Format

Text (WDCGG Data Format Table, WDCGG Meteorological Data Format Table), NetCDF

Relation List (Is Part Of)

All CH₄ data contributed to WDCGG by GAW stations and mobiles by 2025-09-16
All CH₄ data contributed to WDCGG by GAW stations and mobiles by 2024-09-24
All CH₄ data contributed to WDCGG by GAW stations and mobiles by 2023-09-13
All CH₄ data contributed to WDCGG by GAW stations and mobiles by 2022-09-07
All CH₄ data contributed to WDCGG by GAW stations and mobiles by 2021-08-27
All CH₄ data contributed to WDCGG by GAW stations and mobiles by 2020-09-28
All CH₄ data contributed to WDCGG by GAW stations and mobiles by 2019-09-19
All CH₄ data contributed to WDCGG by GAW stations and mobiles by 2018-10-25

Geolocation Point

Latitude (north: +; south: -)	72.5800018311
Longitude (east: +; west: -)	-38.4799995422

GAW Data Policy

Citation format

This format is an example of the WDCGG standard citation.
Please follow the citation format which the data providers or owners indicate.

Jacques Hueber (INSTAAR), Detlev Helmig (INSTAAR), Atmospheric CH₄ at Summit by Institute of Arctic and Alpine Research, University of Colorado, dataset published as CH₄_SUM6002_surface-insitu_INSTAAR_data1 at WDCGG, ver. 2025-01-01-0034 (Reference date^*: YYYY/MM/DD)

* As the reference date, please indicate the date you downloaded the files.

Reference(s)

No data available

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