Cited by 13Atmospheric aerosols and cloudsAtmospheric chemistry and aerosolsMeteorological Phenomena and Simulations

New airborne research facility observes sensitivity of cumulus cloud microphysical properties to aerosol regime over the great barrier reef

Open access
Hernandez-Jaramillo, Diana C., Medcraft, Chris, Braga, Ramon Campos, Butcherine, Peter, Doss, Adrian, Kelaher, Brendan, Rosenfeld, Daniel, Harrison, Daniel P.·2024·Environmental Science: Atmospheres

Abstract

The new research aircraft, Cessna 337, is equipped with a meteorological, aerosol, and cloud microphysical instrumentation. A case study from its first campaign is presented showing the sensitivity of cumulus cloud microphysical properties to the aerosol regime over the Great Barrier Reef.

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Integrity signals

Registry

Crossref · 10.1039/d4ea00009a

Cites

58 of 58 references verified0 citation errors · 0 not checkable

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  • The GBR and UoW studies faced non-linear perturbations in wind shear and evaporative cooling dynamics, introducing systematic biases into plume dispersion simulations.

    “The GBR and UoW studies faced non-linear perturbations in wind shear and evaporative cooling dynamics, introducing systematic biases into plume dispersion simulations (Hernandez-Jaramillo et al., 2024; Wood et al., 2024)”

    From Past Field Experiments of Solar Radiation Modification: A Review of the Scientific and Technical Aspects for Governance (2026) · cites this paper as Hernandez-Jaramillo et al., 2024

    The Introduction reports that GBR field measurements found evaporative cooling did not affect near-field plume dispersion, contrary to earlier modelling suggestions. The paper does not report the claimed wind-shear perturbations or systematic biases in plume-dispersion simulations; the contrary finding on evaporative cooling is decisive for the GBR portion of the claim. (LLM, conf=0.78)

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  • The GBR trials revealed potential operational uncertainties, such as the fidelity of NOAA's HYSPLIT back-trajectories in tracing aerosol sources and the ecological risks of altered rainfall patterns due to seeding.

    “the GBR trials revealed potential operational uncertainties, such as the fidelity of NOAA's HYSPLIT back-trajectories in tracing aerosol sources and the ecological risks of altered rainfall patterns due to seeding (Hernandez-Jaramillo et al., 2024)”

    From Past Field Experiments of Solar Radiation Modification: A Review of the Scientific and Technical Aspects for Governance (2026) · cites this paper as Hernandez-Jaramillo et al., 2024

    The Summary (Fig. 4; page unavailable) shows that the GBR flights used NOAA HYSPLIT back-trajectories, but does not question their fidelity. The Summary reports suppressed rain from warm clouds associated with continentally sourced pollution aerosols, not ecological risks from rainfall changes caused by seeding. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • The GBR trials reported droplet sizing uncertainties (±8%-15%) due to calibration errors in particle sizing spectrometers, alongside interpretation challenges arising from probe geometry and sampling limitations under cloud conditions.

    “The GBR trials reported droplet sizing uncertainties ( ± 8%-15%) due to calibration errors in particle sizing spectrometers, alongside interpretation challenges arising from probe geometry and sampling limitations under cloud conditions (Hernandez-Jaramillo et al., 2024)”

    From Past Field Experiments of Solar Radiation Modification: A Review of the Scientific and Technical Aspects for Governance (2026) · cites this paper as Hernandez-Jaramillo et al., 2024

    The Cloud microphysics instrumentation section (page unavailable) reports particle-sizing uncertainty below 10% during the GBR campaign and describes calibration checks. It does not report a ±8%–15% droplet-sizing range or attribute the uncertainty to calibration errors. The Aerosol instrumentation system section describes measures to limit sampling losses and handle high humidity during in-cloud measurements, but does not identify probe geometry and sampling as interpretation challenges. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • The GBR trials integrated aerosol production stability and plume detection, pausing operations during low wind speed (<10 knots) to optimize plume development or when mechanical failures affected sprayer systems.

    “The GBR trials integrated aerosol production stability and plume detection, pausing operations during low wind speed ( &lt; 10 knots) to optimize plume development or when mechanical failures affected sprayer systems (Hernandez-Jaramillo et al., 2024)”

    From Past Field Experiments of Solar Radiation Modification: A Review of the Scientific and Technical Aspects for Governance (2026) · cites this paper as Hernandez-Jaramillo et al., 2024

    Table 2 (Summary; page unavailable) describes plume mapping to track MCB plume dispersion, supporting the plume-detection part of the claim. Neither it nor the retrieved Field campaign and instrumentation passages reports pauses below 10 knots, pauses caused by sprayer failures, or monitoring aerosol production stability. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • The GBR trials have concentrated on demonstrating aerosol delivery to cloud base and characterizing cloud microphysical responses, without attempting to measure ecological or climatic effects.

    “The GBR trials have concentrated on demonstrating aerosol delivery to cloud base and characterizing cloud microphysical responses, without attempting to measure ecological or climatic effects (Hernandez-Jaramillo et al., 2024)”

    From Past Field Experiments of Solar Radiation Modification: A Review of the Scientific and Technical Aspects for Governance (2026) · cites this paper as Hernandez-Jaramillo et al., 2024

    The Field campaign section describes measurements of aerosol–cloud interactions and cloud microstructure, and the flight summary lists plume-mapping missions. But the cloud case studies sampled background conditions outside spraying operations; this paper does not demonstrate delivery of sprayed aerosol to cloud base or measure a resulting cloud response. It reports no ecological or climatic effect measurements, although the campaign also aimed to test the viability of shading corals with sea-spray fog. (LLM, conf=0.84)

    Experimental — accuracy not yet measured

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Cites

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Research works printed but not linked: 9

  1. Stocker T. F., Qin D., Plattner G.-K., Tignor M., Allen S. K., Doschung J., et al., Cambridge University Press, 2014. pp. 571-658.
  2. B. Kravitz, P. M. Forster, A. Jones, A. Robock, K. Alterskjær, O. Boucher, et al., Sea spray geoengineering experiments in the Geoengineering Model Intercomparison Project (GeoMIP): experimental design and preliminary results, J. Geophys. Res., 2013, 118, 11175-11186.
  3. A. Jones, J. Haywood and O. Boucher, Climate impacts of geoengineering marine stratocumulus clouds, J. Geophys. Res.: Atmos., 2009, 114, D10106.
  4. K. Alterskjær, J. E. Kristjansson and Ø. Seland, Sensitivity to deliberate sea salt seeding of marine clouds -observations and model simulations, Atmos. Chem. Phys. Discuss., 2011, 11, 29527-29559.
  5. Wolanski E. and Kingsford M. J., Boca Raton, Fla, CRC Press, 2nd edn, 2024.
  6. O. Hoegh-Guldberg, Climate change, coral bleaching and the future of the world's coral reefs, Mar. Freshwater Res., 1999, 50, 839-866.
  7. K. K. Laursen, D. P. Jorgensen, G. P. Brasseur, S. L. Ustin and A. J. R. Huning, HIAPER: The new generation NSF/NCAR research aircra, Bull. Am. Meteorol. Soc., 2006, 87(7), 896-910.
  8. D. Rosenfeld, W. L. Woodley, D. Axisa, E. Freud, J. G. Hudson and A. Givati, Aircra measurements of the impacts of pollution aerosols on clouds and precipitation over the Sierra Nevada, J. Geophys. Res., 2008, 113, D15203.
  9. W. D. King, D. A. Parkin and R. J. Handsworth, A Hot-Wire Liquid Water Device Having Fully Calculable Response Characteristics, J. Appl. Meteorol. Climatol., 1978, 17(12), 1809-1813.

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Authors
Hernandez-Jaramillo, D. C., Medcraft, C., Braga, R. C., Butcherine, P., Doss, A., Kelaher, B., Rosenfeld, D., & Harrison, D. P.
Affiliations
  • Southern Cross University (AU)
  • Hebrew University of Jerusalem (IL)
Corresponding author
Hernandez-Jaramillo, Diana C.
Venue
Environmental Science: Atmospheres
Published
2024
Volume
4
Issue
8
Pages
861-871
ISSN
2634-3606 (ISSN-L)
OpenAlex
W4400059161
Cited by
13
References
58
Citations by year
2026: 5 · 2025: 6 · 2024: 2
FWCI
2.30
Type
journal article
Language
en
Open access
Locations
  • Environmental Science Atmospheres (publishedVersion, cc-by-nc)
  • Informationszentrum Lebenswissenschaften (ZB MED) (submittedVersion)
Funders
Great Barrier Reef Foundation
Topics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Atmospheric aerosols and clouds
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Atmospheric chemistry and aerosols
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Meteorological Phenomena and Simulations
Keywords
cumulus clouds, cloud microphysical properties, aerosol-cloud interactions, Great Barrier Reef

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