Ship and aircraft in situ observation-based column-averaged dry-air mixing ratios of CH4 (obs. XCH4) over the Western Pacific Ocean
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The dataset contains the timeseries of monthly model "blended observation-based XCH4" (blended obs. XCH4) over the Western Pacific Ocean from 2014 to 2018 for two representative latitude ranges: 30–40° N and 20–30° N. The dataset was obtained by integrating (mainly commercial) ship and aircraft observations with the aid of state-of-the art atmospheric chemistry-transport model calculations. The spatial and temporal coverage of the dataset will be continously extended and updated in the future.
Description
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Creator
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Release date
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2024/05/31
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Temporal coverage
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2014/03/01 - 2017/07/31
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Data provider
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NIES
Email: cgerdb_admin(at)nies.go.jp |
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DOI
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File format
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Data volume
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15.4 KB
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Version
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ver1.0 (Last updated: 2024/05/31)
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Language
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English
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Data Set
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Parameters
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Column-averaged dry-air mixing ratios of CH4
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| Domain |
[Region 1] Latitude: 30–40° N, Longitude: 130-150° E
[Region 2] Latitude: 20–30° N, Longitude: 130-150° E |
| Time resolution |
1 month
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| Spatial resolution |
Latitude: 10 degree
Longitude: 20 degree |
| Calculation method |
In situ CH4 observations by cargo-ships of the Ship Of Opportunity Program (SOOP, https://soop.jp/), commercial aircrafts of the Comprehensive Observation Network for Trace gases by Airliner (CONTRAIL, https://www.cger.nies.go.jp/contrail/), and by ship and aircraft of the Japan Meteorological Agency (JMA) are monthly averaged within 10° latitude by 20° longitude boxes over the ocean. The monthly averages are integrated with the aid of MIROC4 Atmospheric Chemistry-Transport Model (ACTM) calculations to obtain model blended observation-based CH4 profiles. Using equation (15) of Connor et al. (2008) (https://doi.org/10.1029/2006JD008336), and parameters of GOSAT (Greenhouse Gases Observing Satellite) retrievals, a "blended observation-based column-averaged CH4" (blended obs. XCH4) dataset is obtained. (https://doi.org/10.5194/amt-17-1297-2024).
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Keywords
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[Free keywords]
Greenhouse gas, Satellite validation, Carbon cycle, Climate Change, Methane, CH4, XCH4
[GCMD_Platform]Water-based Platforms > Vessels
[GCMD_Science]Air-based Platforms > Jet > Airplane Space-based Platforms > Earth Observation Satellites > GOSAT ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > METHANE
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Update history
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[2024/05/31]
Ver1.0 was released
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Contributors
Reference Information
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Reference
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Müller, A., Tanimoto, H., Sugita, T., Patra, P. K., Nakaoka, S., Machida, T., Morino, I., Butz, A., and Shiomi, K. (2024): Ship- and aircraft-based XCH4 over oceans as a new tool for satellite validation., doi:10.5194/amt-17-1297-2024.
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| Citation format |
When this data set is referred to in publications, it should be cited in the following format.
Müller et al. (2024), Ship and aircraft in situ observation-based column-averaged dry-air mixing ratios of CH4 (obs. XCH4) over the Western Pacific Ocean,
verx.x *1, NIES, DOI:10.17595/20240531.001. (Reference date*2: YYYY/MM/DD) *1 The version number is indicated in the name of each data file. *2 As the reference date, please indicate the date you downloaded the files. |
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Re-distribution of the data or release of Products derived from the data set, shall be reported to the Data Provider without delay.
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Any error in the data set, or the suspicion thereof, should be immediately reported to the Data Provider.
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The Author and the Data Provider shall not have any liability or responsibility whatsoever for any damage that may arise from the use of this data set, and the User must not imply that any guarantee is provided by the Author or the Data Provider. Any injury or loss arising from the use of this data set is solely the responsibility of the User.
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Advisory service
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