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MAIRE24: XCH4 Spectrometer L3 Segments and Mosaics

Summary

MethaneAIR is a set of two passive near-IR imaging spectrometers that report methane (CH4) column mean dry mole fraction that flew aboard the NSF G-V. The instrument was mounted on the floor, between L2 and R2, and used the fore nadir viewport. Shutters mounted on each spectrometer were used to perform on-demand dark calibrations throughout the flight.

Data access

ORDER data to made available for download

Additional information

Identifier	DOI: https://doi.org/10.26023/DH5H-NEHD-9P0G
Data Quality	final
Versions	1.0 (2026-06-12): Final processed data, v1.0
Subscribe	Subscribe to receive email when new or updated data is available.
Related projects	MAIRE24: Methane Emissions Quantification at scale using the MethaneAIR Imaging Spectrometer on the NSF Gulfstream-V 2024
Spatial Type	point
Frequency	< 1 second
Language	English
Grant Code	NSF AGS 2202113
Categories	Aircraft
Platforms	NSF/NCAR GV HIAPER
Instruments	MAIR - MethaneAIR Spectrometers
GCMD Science Keywords	ALBEDO ATMOSPHERIC CARBON DIOXIDE METHANE MOLECULAR OXYGEN SURFACE PRESSURE WATER VAPOR WIND DIRECTION WIND SPEED Expand keywords
Documentation	MAIRE2024_L3_Dataset_Description.pdf [564 KiB]
Related links	info: MAIRE24 Data Policy homepage: MAIRE24 EOL Homepage

Temporal coverage

Begin datetime	2024-07-18 18:27:56
End datetime	2024-07-22 21:56:06

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 42.60, Minimum (South) Latitude: 38.40
Minimum (West) Longitude: -110.60, Maximum (East) Longitude: -103.20

Primary point of contact information

EOL Data Support <datahelp@eol.ucar.edu>

Additional contact information

principalInvestigator: Steven C. Wofsy <wofsy@g.harvard.edu>
author: Steven C. Wofsy <wofsy@g.harvard.edu>

Citation

Wofsy, S. 2026. MAIRE24: XCH4 Spectrometer L3 Segments and Mosaics. Version 1.0. NSF NCAR Earth Observing Laboratory. https://doi.org/10.26023/DH5H-NEHD-9P0G. Accessed 17 Jun 2026.

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