edu.ucar.opensky::articles:26663 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T19:29:46.667577 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7dj5kp8 https://doi.org/10.5281/zenodo.5948860 https Related Dataset #1 Numerical simulation "Numerical simulation of atmospheric Lamb waves generated by the 2022 Hunga-Tonga volcanic eruption" Tongan volcanic eruption induced global-scale thermospheric changes observed by the GOLD mission 2023-06-28T00:00:00Z publication https://n2t.org/ark:/85065/d7dj5kp8 https://doi.org/10.1029/2023GL103158 Aryal, S. author Gan, Q. author Evans, J. author Laskar, F. author Karan, D. author Cai, X. author Greer, K. author Wang, Wenbin author McClintock, W. author Eastes, R. author UCAR/NCAR - Library publisher The 2022 Tongan volcanic eruption released significant energy into the atmosphere. Tropospheric satellite images show that the eruption generated pressure waves that traveled globally. The Global Observation of the Limb and Disk (GOLD) mission observed significant wave-like thermospheric temperature perturbations (>100 K) from 12 to 16 UT. These temperature perturbations' spatial curvatures and arrival times are initially similar to the tropospheric wave-fronts but differ significantly with eastward propagation. The perturbations had a phase speed of similar to 300-400 m/s and wavelengths greater than 2,400 km. Near-concurrent Ionospheric Connection Explorer neutral wind measurements suggest that the eruption's effects reversed the direction of the prevailing thermospheric zonal winds around the perturbed regions. The eruption's global and whole atmospheric effects provide a unique opportunity to study how different atmospheric layers exchange energy and momentum during explosive events. GOLD's synoptic observations are uniquely positioned to study these effects in the middle thermosphere. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. None eng geoscientificInformation