Airborne Imaging Spectrometer Level 2 Ungridded Data https://data.eol.ucar.edu/dataset/598.011 Summary MethaneAIR (“MAIR”) is a dual imaging spectrometer observing reflected sunlight at 1.65 µm (CH4 and CO2) and 1.27 µm. It measures absorption spectra with high spectral resolution, fine spatial resolution, wide swath, and high signal-to-noise ratio, enabling high-contrast, fine-grained images of CH4 column mean dry mole fraction. MAIR duplicates the spectroscopy of the upcoming MethaneSAT satellite (“MSAT”, launch Q1 2023). Development of the MAIR sensor and associated retrieval algorithms was supported by MethaneSAT LLC (a subsidiary of the Environmental Defense Fund). In 2019, NSF supported science demonstration flights of MAIR with an EAGER grant, carried out in August 2021 on the NCAR Gulfstream V. Two engineering test flights in Nov. 2019 (TF01, TF02) were successful, but the flight series was terminated due to avionics failures on the GV. The series was rescheduled for March 2020, but the US shut down that month due to COVID-19. Flights rescheduled for June 2021 were pushed to late July/August of 2021 to accommodate another mission that had been displaced by unavailability of the C-130. After a short test flight (TF03), research flights RF04-RF09 targeted oil and gas infrastructure in Texas, New Mexico, and North Dakota. There were also 21 flight segments on RF04 and RF05 to compare emission rates of methane derived from MethaneAIR data to controlled releases carried out near Odesa, TX, by the Stanford group of Adam Brandt. Engineering test flight TF10 was carried out at the end of the flight series. The spectrometer was inverted to view the upward-looking port of the G-V, recording the spatial pattern of airglow in the 1.27 µm band. This is a large dataset. Please only order the flights needed. See the readme for more information. Identifiers * Local archive identifier: 598.011 * doi:10.26023/J2CB-E2RX-J700 https://doi.org/10.26023/J2CB-E2RX-J700 Versions 1.0 Citation Miller, C., et al. 2023. MethaneAIR: Airborne Imaging Spectrometer Level 2 Ungridded Data. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.26023/J2CB-E2RX-J700 Accessed 20 Apr 2024. Additional citation styles can be generated by entering the DOI at CrossCite (https://citation.crosscite.org/). Acknowledgement In addition to the citation reference and any other acknowledgements, please acknowledge 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 * MethaneAIR: MethaneAIR https://data.eol.ucar.edu/project/MethaneAIR Additional information * Frequency: continuous * Language: English Platforms * NSF/NCAR GV HIAPER Instruments * MAIR - MethaneAIR * Spectrometers GCMD Science Keywords * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR PROFILES > WATER VAPOR MIXING RATIO PROFILES * EARTH SCIENCE > ATMOSPHERE > ALTITUDE > TROPOPAUSE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS > U/V WIND COMPONENTS * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS > FLIGHT LEVEL WINDS * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > METHANE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE > CARBON DIOXIDE PROFILES * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SURFACE PRESSURE Documentation * MethaneAIR_Dataset_Documentation_reva.pdf [491 KiB] https://data.eol.ucar.edu/file/download/555A106A5B562/MethaneAIR_Dataset_Documentation_reva.pdf Related links * homepage: MethaneAIR Home Page https://www.eol.ucar.edu/field_projects/methaneair * info: MethaneAIR Data Policy https://www.eol.ucar.edu/content/methaneair-data-policy Temporal coverage * Begin datetime: 2021-07-30 00:00:00 * End datetime: 2021-08-13 23:59:59 Spatial coverage * Maximum (North) Latitude: 48.52733 * Minimum (South) Latitude: 31.4256 * Minimum (West) Longitude: -112.0456 * Maximum (East) Longitude: -91.28174 Primary contact information * pointOfContact: EOL Data Support https://data.eol.ucar.edu/contact/show/1 Additional contact information * author: Christopher Chan Miller https://data.eol.ucar.edu/contact/show/3372 * author: Jonathan E. Franklin https://data.eol.ucar.edu/contact/show/3373 * author: Sébastien Roche https://data.eol.ucar.edu/contact/show/3374 * author: Jonas S. Wilzewski https://data.eol.ucar.edu/contact/show/3375 * author: Kang Sun https://data.eol.ucar.edu/contact/show/3376 * author: Xiong Liu https://data.eol.ucar.edu/contact/show/3377 * author: Kelly Chance https://data.eol.ucar.edu/contact/show/3378 * author: Amir H. Souri https://data.eol.ucar.edu/contact/show/3379 * author: Eamon Conway https://data.eol.ucar.edu/contact/show/3380 * author: Jenna Samra https://data.eol.ucar.edu/contact/show/3381 * author: Jacob Hawthorne https://data.eol.ucar.edu/contact/show/3382 * author: Carly Staebell https://data.eol.ucar.edu/contact/show/3383 * author: Apisada (Ju) Chulakadabba https://data.eol.ucar.edu/contact/show/3384 * author: Maryann Sargent https://data.eol.ucar.edu/contact/show/3385 * author: Joshua S. Benmergui https://data.eol.ucar.edu/contact/show/3386 * author: Bruce C. Daube https://data.eol.ucar.edu/contact/show/3387 * author: Yang Li https://data.eol.ucar.edu/contact/show/3388 * author: Josh Laughner https://data.eol.ucar.edu/contact/show/3389 * author: Steven C. Wofsy https://data.eol.ucar.edu/contact/show/3390 Alternate metadata formats * DataCite: https://data.eol.ucar.edu/dataset/598.011?format=datacite * ISO/TC 211: https://data.eol.ucar.edu/dataset/598.011?format=isotc211