Articles | Volume 9, issue 3
https://doi.org/10.5194/amt-9-929-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/amt-9-929-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Controlled weather balloon ascents and descents for atmospheric research and climate monitoring
Andreas Kräuchi
Institute for Atmospheric and Climate Science, ETH Zurich, 8057 Zurich, Switzerland
Rolf Philipona
CORRESPONDING AUTHOR
Federal Office of Meteorology and Climatology MeteoSwiss, Aerological Station, 1530 Payerne, Switzerland
Gonzague Romanens
Federal Office of Meteorology and Climatology MeteoSwiss, Aerological Station, 1530 Payerne, Switzerland
Dale F. Hurst
Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado 80309, USA
NOAA Earth System Research Laboratory, Global Monitoring Division, Boulder, Colorado 80305, USA
Emrys G. Hall
Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado 80309, USA
NOAA Earth System Research Laboratory, Global Monitoring Division, Boulder, Colorado 80305, USA
Allen F. Jordan
Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado 80309, USA
NOAA Earth System Research Laboratory, Global Monitoring Division, Boulder, Colorado 80305, USA
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Anne M. Thompson, Ryan M. Stauffer, Debra E. Kollonige, Jerald R. Ziemke, Bryan J. Johnson, Gary A. Morris, Patrick Cullis, María Cazorla, Jorge Andres Diaz, Ankie Piters, Igor Nedeljkovic, Truus Warsodikromo, Francisco Raimundo Silva, E. Thomas Northam, Patrick Benjamin, Thumeka Mkololo, Tshidi Machinini, Christian Félix, Gonzague Romanens, Syprose Nyadida, Jérôme Brioude, Stéphanie Evan, Jean-Marc Metzger, Ambun Dindang, Yuzaimi B. Mahat, Mohan Kumar Sammathuria, Norazura Binti Zakaria, Ninong Komala, Shin-Ya Ogino, Nguyen Thi Quyen, Francis S. Mani, Miriama Vuiyasawa, David Nardini, Matthew Martinsen, Darryl T. Kuniyuki, Katrin Müller, Pawel Wolff, and Bastien Sauvage
Atmos. Chem. Phys., 25, 18475–18507, https://doi.org/10.5194/acp-25-18475-2025, https://doi.org/10.5194/acp-25-18475-2025, 2025
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Ozone profile trends from SHADOZ sondes and IAGOS aircraft show that ozone in the tropical free troposphere (FT) is not growing fast except over equatorial SE Asia. This agrees with HEGIFTOM (Van Malderen et al., 2025), Stauffer et al. (2024) and Gaudel et al. (2024) TOAR-II papers. Other findings are as follows: (1) our trends are independent of method (QR, MLR) and (2) sample number (SN) (i.e., SHADOZ sampling is sufficient), and (3) all ground-based trends constitute the gold standard for satellite-derived trends.
Mélanie Ghysels, Georges Durry, Nadir Amarouche, Dale Hurst, Emrys Hall, Kensy Xiong, Jean-Charles Dupont, Jean-Christophe Samake, Fabien Frérot, Raghed Bejjani, and Emmanuel D. Riviere
Atmos. Meas. Tech., 17, 3495–3513, https://doi.org/10.5194/amt-17-3495-2024, https://doi.org/10.5194/amt-17-3495-2024, 2024
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A tunable diode laser hygrometer, “Pico-Light H2O”, is presented and its performances are evaluated during the AsA 2022 balloon-borne intercomparison campaign from Aire-sur-l'Adour (France) in September 2022. A total of 15 balloons were launched within the framework of the EU-funded HEMERA project. Pico-Light H2O has been compared in situ with the NOAA Frost Point Hygrometer in the upper troposphere and stratosphere, as well as with meteorological sondes (iMet-4 and M20) in the troposphere.
Michael Kiefer, Dale F. Hurst, Gabriele P. Stiller, Stefan Lossow, Holger Vömel, John Anderson, Faiza Azam, Jean-Loup Bertaux, Laurent Blanot, Klaus Bramstedt, John P. Burrows, Robert Damadeo, Bianca Maria Dinelli, Patrick Eriksson, Maya García-Comas, John C. Gille, Mark Hervig, Yasuko Kasai, Farahnaz Khosrawi, Donal Murtagh, Gerald E. Nedoluha, Stefan Noël, Piera Raspollini, William G. Read, Karen H. Rosenlof, Alexei Rozanov, Christopher E. Sioris, Takafumi Sugita, Thomas von Clarmann, Kaley A. Walker, and Katja Weigel
Atmos. Meas. Tech., 16, 4589–4642, https://doi.org/10.5194/amt-16-4589-2023, https://doi.org/10.5194/amt-16-4589-2023, 2023
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We quantify biases and drifts (and their uncertainties) between the stratospheric water vapor measurement records of 15 satellite-based instruments (SATs, with 31 different retrievals) and balloon-borne frost point hygrometers (FPs) launched at 27 globally distributed stations. These comparisons of measurements during the period 2000–2016 are made using robust, consistent statistical methods. With some exceptions, the biases and drifts determined for most SAT–FP pairs are < 10 % and < 1 % yr−1.
William G. Read, Gabriele Stiller, Stefan Lossow, Michael Kiefer, Farahnaz Khosrawi, Dale Hurst, Holger Vömel, Karen Rosenlof, Bianca M. Dinelli, Piera Raspollini, Gerald E. Nedoluha, John C. Gille, Yasuko Kasai, Patrick Eriksson, Christopher E. Sioris, Kaley A. Walker, Katja Weigel, John P. Burrows, and Alexei Rozanov
Atmos. Meas. Tech., 15, 3377–3400, https://doi.org/10.5194/amt-15-3377-2022, https://doi.org/10.5194/amt-15-3377-2022, 2022
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This paper attempts to provide an assessment of the accuracy of 21 satellite-based instruments that remotely measure atmospheric humidity in the upper troposphere of the Earth's atmosphere. The instruments made their measurements from 1984 to the present time; however, most of these instruments began operations after 2000, and only a few are still operational. The objective of this study is to quantify the accuracy of each satellite humidity data set.
Eric J. Hintsa, Fred L. Moore, Dale F. Hurst, Geoff S. Dutton, Bradley D. Hall, J. David Nance, Ben R. Miller, Stephen A. Montzka, Laura P. Wolton, Audra McClure-Begley, James W. Elkins, Emrys G. Hall, Allen F. Jordan, Andrew W. Rollins, Troy D. Thornberry, Laurel A. Watts, Chelsea R. Thompson, Jeff Peischl, Ilann Bourgeois, Thomas B. Ryerson, Bruce C. Daube, Yenny Gonzalez Ramos, Roisin Commane, Gregory W. Santoni, Jasna V. Pittman, Steven C. Wofsy, Eric Kort, Glenn S. Diskin, and T. Paul Bui
Atmos. Meas. Tech., 14, 6795–6819, https://doi.org/10.5194/amt-14-6795-2021, https://doi.org/10.5194/amt-14-6795-2021, 2021
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We built UCATS to study atmospheric chemistry and transport. It has measured trace gases including CFCs, N2O, SF6, CH4, CO, and H2 with gas chromatography, as well as ozone and water vapor. UCATS has been part of missions to study the tropical tropopause; transport of air into the stratosphere; greenhouse gases, transport, and chemistry in the troposphere; and ozone chemistry, on both piloted and unmanned aircraft. Its design, capabilities, and some results are shown and described here.
Nathaniel J. Livesey, William G. Read, Lucien Froidevaux, Alyn Lambert, Michelle L. Santee, Michael J. Schwartz, Luis F. Millán, Robert F. Jarnot, Paul A. Wagner, Dale F. Hurst, Kaley A. Walker, Patrick E. Sheese, and Gerald E. Nedoluha
Atmos. Chem. Phys., 21, 15409–15430, https://doi.org/10.5194/acp-21-15409-2021, https://doi.org/10.5194/acp-21-15409-2021, 2021
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The Microwave Limb Sounder (MLS), an instrument on NASA's Aura mission launched in 2004, measures vertical profiles of the temperature and composition of Earth's "middle atmosphere" (the region from ~12 to ~100 km altitude). We describe how, among the 16 trace gases measured by MLS, the measurements of water vapor (H2O) and nitrous oxide (N2O) have started to drift since ~2010. The paper also discusses the origins of this drift and work to ameliorate it in a new version of the MLS dataset.
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Short summary
In situ upper-air measurements are often made with instruments attached to weather balloons launched at the surface and lifted into the stratosphere. It has been demonstrated that ascending weather balloons can perturb the air measured by very sensitive humidity and temperature sensors trailing behind them. The use of controlled balloon descent for such measurements has therefore been investigated and is described here. We present two different methods and show advantages and disadvantages.
In situ upper-air measurements are often made with instruments attached to weather balloons...