Articles | Volume 15, issue 23
https://doi.org/10.5194/amt-15-6949-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-15-6949-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Dec 2022
Research article |
| 02 Dec 2022
| 02 Dec 2022
Assessing the consistency of satellite-derived upper tropospheric humidity measurements
Lei Shi
CORRESPONDING AUTHOR
NOAA NESDIS National Centers for Environmental Information (NCEI), Asheville, NC, USA
Carl J. Schreck III
Cooperative Institute for Satellite Earth System Studies (CISESS), North Carolina State University, Asheville, NC, USA
Viju O. John
EUMETSAT and Met Office Hadley Centre, Exeter, UK
Eui-Seok Chung
Korea Polar Research Institute, Incheon, South Korea
Theresa Lang
Meteorological Institute, Universität Hamburg, Hamburg, Germany
International Max Planck Research School on Earth System Modelling, Max Planck Institute for Meteorology, Hamburg, Germany
Stefan A. Buehler
Meteorological Institute, Universität Hamburg, Hamburg, Germany
Brian J. Soden
Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, USA
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We give a detailed description of a new technique to estimate the height of volcanic eruption columns from near-limb geostationary imagery. Such oblique angle observations offer spectacular side views of eruption columns protruding from the Earth ellipsoid and thereby facilitate a height-by-angle estimation method. Due to its purely geometric nature, the new technique is unaffected by the limitations of traditional brightness-temperature-based height retrievals.
Ákos Horváth, Olga A. Girina, James L. Carr, Dong L. Wu, Alexey A. Bril, Alexey A. Mazurov, Dmitry V. Melnikov, Gholam Ali Hoshyaripour, and Stefan A. Buehler
Atmos. Chem. Phys., 21, 12207–12226, https://doi.org/10.5194/acp-21-12207-2021, https://doi.org/10.5194/acp-21-12207-2021, 2021
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We demonstrate the side view plume height estimation technique described in Part 1 on seven volcanic eruptions from 2019 and 2020, including the 2019 Raikoke eruption. We explore the strengths and limitations of the new technique in comparison to height estimation from brightness temperatures, stereo observations, and ground-based video footage.
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Short summary
Four upper tropospheric humidity (UTH) datasets derived from satellite microwave and infrared sounders are evaluated to assess their consistency as part of the activities for the Global Energy and Water Exchanges (GEWEX) water vapor assessment project. The study shows that the four datasets are consistent in the interannual temporal and spatial variability of the tropics. However, differences are found in the magnitudes of the anomalies and in the changing rates during the common period.
Four upper tropospheric humidity (UTH) datasets derived from satellite microwave and infrared...
