NO | 2 |
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Acronym | NOAA |
Name | Global Monitoring Laboratory, NOAA |
Address 1 | NOAA/ESRL |
Address 2 | R/GML1 |
Address 3 | 325 Broadway Boulder, CO 80305-3328 |
Country/Territory | United States of America |
Website | https://gml.noaa.gov/ |
Name | Xin Lan |
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Prefix | |
xin.lan@noaa.gov | |
Organization No | 2 |
Organization acronym | NOAA |
Organization name | Global Monitoring Laboratory, NOAA |
Organization country/territory | United States of America |
Address 1 | NOAA GML |
Address 2 | 325 Broadway R/GML-1 |
Address 3 | Boulder, CO 80305-3328 |
Country/territory | United States of America |
Tel | |
Fax | |
Last updated date | 2024-02-20 |
Name | Kirk Thoning |
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Prefix | |
kirk.w.thoning@noaa.gov | |
Organization No | 2 |
Organization acronym | NOAA |
Organization name | Global Monitoring Laboratory, NOAA |
Organization country/territory | United States of America |
Address 1 | NOAA GML |
Address 2 | 325 Broadway R/GML-1 |
Address 3 | Boulder, CO 80305-3328 |
Country/territory | United States of America |
Tel | 303-497-6078 |
Fax | |
Last updated date | 2024-02-20 |
Background observation | |
UTC | |
ppb | |
9999-12-31 00:00:00 - 9999-12-31 23:59:59: WMO CH4 X2004A |
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2022-01-01 00:00:00 - 2022-12-06 23:00:00: Unknown(Unknown) 2022-12-07 00:00:00 - 2023-12-31 23:00:00: Unknown(CRDS) |
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Unknown | |
[Hourly] For GC/FID systems, hourly averages were calculated from all valid measurements within an hour and reported in our data files with the number of measurements (nvalue) and standard deviation (value_std_dev). For n=1, value_std_dev cannot be calculated. For spectrometer systems, 5-minute averages are used to calculate hourly averages, but value_std_dev includes variability in the 5-min averages, so it is greater than the normal sample SD of the 5-min averages that go into the hourly mean, and when nvalue=1 (i.e., one 5-min average in the hourly mean), value_std_dev is still calculated and reported. [Daily] Daily values derived from hourly data representative of baseline conditions [Monthly] Monthly values derived from hourly data representative of baseline conditions |
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This is the NOAA 3-character quality control flag. Column 1 is the REJECTION flag. An alphanumeric other than a period (.) in the FIRST column indicates a sample with obvious problems during collection or analysis. This measurement should not be interpreted. Column 2 is the SELECTION flag. An alphanumeric other than a period (.) in the SECOND column indicates a sample that is likely valid but does not meet selection criteria determined by the goals of a particular investigation. Column 3 is the INFORMATION flag. An alphanumeric other than a period (.) in the THIRD column provides additional information about the collection or analysis of the sample. | |
Valid (background): ... Valid (background): ..? Valid: .?? Invalid: ??? |
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Operational/Reporting | |
Atmospheric Methane Dry Air Mole Fractions from quasi-continuous measurements at Mauna Kea, Hawaii. These data are provided by NOAA. Principal investigators include Xin Lan (NOAA) AND Kirk Thoning (NOAA). Please cite the product's citation when using data from this dataset : K.W. Thoning, X. Lan, A.M. Crotwell, and J.W. Mund (2024), Atmospheric methane from quasi-continuous measurements at Barrow, Alaska and Mauna Loa, Hawaii, 1986-2023, Version: 2024-02-12, National Oceanic and Atmospheric Administration (NOAA), Global Monitoring Laboratory (GML), Boulder, Colorado, USA https://doi.org/10.15138/ve0c-be70 Measurements of CH4 began at Mauna Kea, Hawaii, approximately 21 miles north of Mauna loa, in December 2022, to replace the measurements that were suspended at Mauna Loa. |
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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: |
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Meteorological data may remain as first provided, even when greenhouse gas data are updated. |
DOI |
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For more information, please refer: doi.org/10.15138/ve0c-be70 |
Format | Text (WDCGG Data Format Table, WDCGG Meteorological Data Format Table), NetCDF | ||||
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Relation List (Is Part Of) |
All CH4 data contributed to WDCGG by GAW stations and mobiles by 2023-09-13 |
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Geolocation Point |
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1 | K.W. Thoning, X. Lan, A.M. Crotwell, and J.W. Mund (2024), Atmospheric methane from quasi-continuous measurements at Barrow, Alaska and Mauna Loa, Hawaii, 1986-2023, Version: 2024-02-12, National Oceanic and Atmospheric Administration (NOAA), Global Monitoring Laboratory (GML), Boulder, Colorado, USA https://doi.org/10.15138/ve0c-be70 |
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