Best Practice Protocol for the validation of Aerosol, Cloud, and Precipitation Profiles (ACPPV)

Vassilis Amiridis, Eleni Marinou, Chris Hostetler, Rob Koopman, Daniel Cecil, Dmitri Moisseev, jason Tackett, Silke Groß, Holger Baars, Jens Redemann, Franco Marenco, Luca Baldini, Simone Tanelli, Mark Fielding, Marta Janiskova, Yasuyuki Tanaka, E. J. O'Connor, Ann Mari Fjaeraa, Peristera Paschou, Kalliopi Artemis Voudouri, Richard Ferrare, Sharon Burton, Gregory Schuster, seiji kato, David Winker, Michael A. Shook, Sebastian Bley, Moritz Haarig, Athena Augusta Floutsi, Ulla Wandinger, Dimitri Trapon, Lukas Pfitzenmaier, Nikolaos Papagiannopoulos, Lucia Mona, Derek Posselt, Shannon Mason, Michael Rennie, Angela Benedetti, Robin Hogan, Larisa Sogacheva, Dimitris Balis, Konstantinos Michailidis, Gerd-Jan van Zadelhoff, Edward Nowottnick, John Yorks, Kamil Mroz, David Donovan, Tristan L'Ecuyer, Hajime Okamoto, Kaori Sato, David Henderson, Tomoaki Nishikawa, Howard Barker, Jason Cole, Zhipeng Qu, Nicolas Clerbaux, Takashi Nakajima, Randy J. Chase, David Wolff, Eduardo Landulfo, Pierre-Emmanuel Kirstetter, Jim Mather, Tadayasu Ohigashi, Ryder, Vasileios Tzallas, Ioanna Tsikoudi, Alexandra Tsekeri, Maria Tsichla, Iliana Koutsoupi, Takuji Kubota, Nikolaos Siomos, Nobuhiro Takahashi, Hiroaki Horie, Kentaroh Suzuki, Jay Mace, McLean, W., Maria Borderies, Rohit Mangla, PhD, Jerónimo Escribano, Isaac Moradi, Chonglin Zhang, Rubin Juli, Yasutaka Ikuta, Thierry Marbach, Bojan Bojkov, Christophe Accadia, Bertrand Fougnie, Loredana Spezzi, Alessio Bozzo, Julien Chimot, Soheila Jafariserajehlou, Thomas Flament, Vinia Mattioli, Johan Strandgren, Vasileios Barlakas and Pavlos Kollias 2025. Best Practice Protocol for the validation of Aerosol, Cloud, and Precipitation Profiles (ACPPV). Zenodo. https://doi.org/10.5281/zenodo.15025627

Title	Best Practice Protocol for the validation of Aerosol, Cloud, and Precipitation Profiles (ACPPV)
Authors	Vassilis Amiridis, Eleni Marinou, Chris Hostetler, Rob Koopman, Daniel Cecil, Dmitri Moisseev, jason Tackett, Silke Groß, Holger Baars, Jens Redemann, Franco Marenco, Luca Baldini, Simone Tanelli, Mark Fielding, Marta Janiskova, Yasuyuki Tanaka, E. J. O'Connor, Ann Mari Fjaeraa, Peristera Paschou, Kalliopi Artemis Voudouri, Richard Ferrare, Sharon Burton, Gregory Schuster, seiji kato, David Winker, Michael A. Shook, Sebastian Bley, Moritz Haarig, Athena Augusta Floutsi, Ulla Wandinger, Dimitri Trapon, Lukas Pfitzenmaier, Nikolaos Papagiannopoulos, Lucia Mona, Derek Posselt, Shannon Mason, Michael Rennie, Angela Benedetti, Robin Hogan, Larisa Sogacheva, Dimitris Balis, Konstantinos Michailidis, Gerd-Jan van Zadelhoff, Edward Nowottnick, John Yorks, Kamil Mroz, David Donovan, Tristan L'Ecuyer, Hajime Okamoto, Kaori Sato, David Henderson, Tomoaki Nishikawa, Howard Barker, Jason Cole, Zhipeng Qu, Nicolas Clerbaux, Takashi Nakajima, Randy J. Chase, David Wolff, Eduardo Landulfo, Pierre-Emmanuel Kirstetter, Jim Mather, Tadayasu Ohigashi, Ryder, Vasileios Tzallas, Ioanna Tsikoudi, Alexandra Tsekeri, Maria Tsichla, Iliana Koutsoupi, Takuji Kubota, Nikolaos Siomos, Nobuhiro Takahashi, Hiroaki Horie, Kentaroh Suzuki, Jay Mace, McLean, W., Maria Borderies, Rohit Mangla, PhD, Jerónimo Escribano, Isaac Moradi, Chonglin Zhang, Rubin Juli, Yasutaka Ikuta, Thierry Marbach, Bojan Bojkov, Christophe Accadia, Bertrand Fougnie, Loredana Spezzi, Alessio Bozzo, Julien Chimot, Soheila Jafariserajehlou, Thomas Flament, Vinia Mattioli, Johan Strandgren, Vasileios Barlakas and Pavlos Kollias
Description	Validation activities are critical to ensure the quality, credibility, and integrity of Earth observation data. With the deployment of advanced active remote sensors in space, a clear need arises for establishing best practices in the field of cloud, aerosol and precipitation profile validation. This publication fulfills this need, by proposing common practices, capturing lessons learned from earlier missions. The ACPPV publication is a result of an international collaboration of 97 scientists from 58 Institutions and Space Agencies, reviewed and accepted by the CEOS Working Group for Calibration and Validation (action item CV-22-01). The approaches and recommendations included, cover a range of issues, including correlative site and instrument selection, data processing and quality control, campaign criteria, configurations, scenarios, collocation methods, suggestions on issues concerning scene representativeness, and intercomparison methodologies. Moreover, guidance on the statistical validation through intercomparison between satellite-based remote sensing observations, and on the near-real time validation through monitoring in an NWP data assimilation system are included. To this end, the scientific communities involved in past missions have reviewed lessons learned and identified areas where convergence on similar approaches is beneficial. Finally, existing gaps in our Cal/Val knowledge are summarized. Given the complexity and diversity of geophysical scenarios and retrievals of aerosol, cloud, and precipitation regimes, the ACPPV document is aimed at knowledge exchange and conveying lessons learned, rather than definitions on single and strict protocols that have been agreed upon in some other domains with fewer degrees of freedom.
Year	2025
Publisher	Zenodo
Publication dates
Published	16 Mar 2025
Digital Object Identifier (DOI)	https://doi.org/10.5281/zenodo.15025627
Journal	Zenodo

Title

Authors

Description

Validation activities are critical to ensure the quality, credibility, and integrity of Earth observation data. With the deployment of advanced active remote sensors in space, a clear need arises for establishing best practices in the field of cloud, aerosol and precipitation profile validation. This publication fulfills this need, by proposing common practices, capturing lessons learned from earlier missions. The ACPPV publication is a result of an international collaboration of 97 scientists from 58 Institutions and Space Agencies, reviewed and accepted by the CEOS Working Group for Calibration and Validation (action item CV-22-01). The approaches and recommendations included, cover a range of issues, including correlative site and instrument selection, data processing and quality control, campaign criteria, configurations, scenarios, collocation methods, suggestions on issues concerning scene representativeness, and intercomparison methodologies. Moreover, guidance on the statistical validation through intercomparison between satellite-based remote sensing observations, and on the near-real time validation through monitoring in an NWP data assimilation system are included. To this end, the scientific communities involved in past missions have reviewed lessons learned and identified areas where convergence on similar approaches is beneficial. Finally, existing gaps in our Cal/Val knowledge are summarized. Given the complexity and diversity of geophysical scenarios and retrievals of aerosol, cloud, and precipitation regimes, the ACPPV document is aimed at knowledge exchange and conveying lessons learned, rather than definitions on single and strict protocols that have been agreed upon in some other domains with fewer degrees of freedom.

Year

2025

Publisher

Zenodo

Publication dates

Published

16 Mar 2025

Digital Object Identifier (DOI)

https://doi.org/10.5281/zenodo.15025627

Journal

Zenodo

Best Practice Protocol for the validation of Aerosol, Cloud, and Precipitation Profiles (ACPPV)

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