XCH4 Spectrometer L3 Segments and Mosaics https://data.eol.ucar.edu/dataset/640.006 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. Identifiers * Local archive identifier: 640.006 * doi:10.26023/DH5H-NEHD-9P0G https://doi.org/10.26023/DH5H-NEHD-9P0G Versions 1.0: Final processed data, v1.0 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. Additional citation styles can be generated by entering the DOI at CrossCite (https://citation.doi.org/). Acknowledgement In addition to the citation reference and any other acknowledgements, please acknowledge NSF NCAR EOL in your publications with text such as: Data provided by NCAR EOL under the sponsorship of the National Science Foundation. https://data.eol.ucar.edu/ Related projects * MAIRE24: Methane Emissions Quantification at scale using the MethaneAIR Imaging Spectrometer on the NSF Gulfstream-V 2024 https://data.eol.ucar.edu/project/MAIRE24 Additional information * 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 * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > WATER VAPOR * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SURFACE PRESSURE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > OXYGEN COMPOUNDS > MOLECULAR OXYGEN * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > METHANE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND SPEED * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > ALBEDO * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND DIRECTION Documentation * MAIRE2024_L3_Dataset_Description.pdf [564 KiB] https://data.eol.ucar.edu/file/download/55F8517E5BFF2/MAIRE2024_L3_Dataset_Description.pdf Related links * homepage: MAIRE24 EOL Homepage https://www.eol.ucar.edu/maire24 * info: MAIRE24 Data Policy https://www.eol.ucar.edu/node/31410 Temporal coverage * Begin datetime: 2024-07-18 18:27:56 * End datetime: 2024-07-22 21:56:06 Spatial coverage * Maximum (North) Latitude: 42.60 * Minimum (South) Latitude: 38.40 * Minimum (West) Longitude: -110.60 * Maximum (East) Longitude: -103.20 Primary contact information * pointOfContact: EOL Data Support https://data.eol.ucar.edu/contact/show/1 Additional contact information * principalInvestigator: Steven C. Wofsy https://data.eol.ucar.edu/contact/show/3390 * author: Steven C. Wofsy https://data.eol.ucar.edu/contact/show/3390 Alternate metadata formats * DataCite: https://data.eol.ucar.edu/dataset/640.006?format=datacite * ISO/TC 211: https://data.eol.ucar.edu/dataset/640.006?format=isotc211