Principal Scientist
Research, Earth System Modelling, Physical Processes
Summary:
Robin is responsible for the representation of solar and infrared radiation in ECMWF's Integrated Forecasting System. Radiative processes provide the energy that drives the atmospheric circulation, and an accurate representation in forecast models is crucial for surface temperature forecasts as well as for pushing the boundaries of predictability. He is the European Co-Chair of the EarthCARE Joint ESA-JAXA Mission Advisory Group.
Professional interests:
- Developing novel numerical methods for radiative transfer and particle scattering
- Managing the CKDMIP project to evaluate and improve the treatment of gas optics in the radiation schemes used for weather and climate prediction
- Cloud and precipitation remote sensing using radar and lidar, and their use in model evaluation
- Cloud processes, boundary-layer meteorology, the stratosphere and other areas of atmospheric science
- Developing the fast and user-friendly automatic differentiation software tool Adept
Some specific research questions currently being tackled:
- How can we improve the accuracy and efficiency of the representation of gas optics in radiation schemes?
- How can we improve the accuracy and flexibility of the representation of aerosols in radiation schemes?
- How can we represent the effects of 3D radiative transfer efficiently in NWP models?
- How can the radiative effects of urban and vegetated areas be represented in NWP models?
- How can the synergy of instruments on board the forthcoming EarthCARE satellite be used optimally to retrieve cloud and precipitation properties?
The offline version of the ECMWF radiation scheme is available under the Apache open-source license.
Career background:
- 2024-present: Principal Scientist, ECMWF, UK (95%)
- 2014–2024: Senior Scientist, ECMWF, UK (95%)
- 2010–present: Professor of Atmospheric Physics, Dept of Meteorology, University of Reading, UK (5% since April 2014)
- 2011–2014: Head of Department for Research, Dept of Meteorology, University of Reading, UK
- 2007–2010: Reader in Atmospheric Physics, Dept of Meteorology, University of Reading, UK
- 2003–2007: Lecturer, Department of Meteorology, University of Reading, UK
- 1998–2002: Postdoctoral research scientist, Department of Meteorology, University of Reading, UK
External recognitions
- 2014: Henry G. Houghton Award, American Meteorological Society
- 2012: Elected a commissioner of the International Radiation Commission
- 2007: Elected a Fellow of the Royal Meteorological Society
- 2005: L. F. Richardson Prize, Royal Meteorological Society
- 2024
- Robin Hogan (January 2024) What are the optimum discrete angles to use in thermal‐infrared radiative transfer calculations?, Quarterly Journal of the Royal Meteorological Society. DOI: 10.1002/qj.4598
- Shannon Mason, Howard W. Barker, Jason N. S. Cole, Nicole Docter, David P. Donovan, Robin Hogan, Anja Hünerbein, Pavlos Kollias, Bernat Puigdomènech Treserras, Zhipeng Qu, Ulla Wandinger, Gerd-Jan van Zadelhoff (February 2024) An intercomparison of EarthCARE cloud, aerosol, and precipitation retrieval products, Atmospheric Measurement Techniques. DOI: 10.5194/amt-17-875-2024
- Peter Ukkonen, Robin J. Hogan (January 2024) Twelve Times Faster yet Accurate: A New State‐Of‐The‐Art in Radiation Schemes via Performance and Spectral Optimization, Journal of Advances in Modeling Earth Systems. DOI: 10.1029/2023ms003932
- Hanno Müller, André Ehrlich, Evelyn Jäkel, Johannes Röttenbacher, Benjamin Kirbus, Michael Schäfer, Robin Hogan, Manfred Wendisch (April 2024) Evaluation of downward and upward solar irradiances simulated by the Integrated Forecasting System of ECMWF using airborne observations above Arctic low-level clouds, Atmospheric Chemistry and Physics. DOI: 10.5194/acp-24-4157-2024
- 2023
- Robert Schoetter, Cyril Caliot, Tin-Yuet Chung, Robin J. Hogan, Valéry Masson (December 2023) Quantification of Uncertainties of Radiative Transfer Calculation in Urban Canopy Models, Boundary-Layer Meteorology. DOI: 10.1007/s10546-023-00827-9
- Shannon L. Mason, Robin Hogan, Alessio Bozzo, Nicola L. Pounder (July 2023) A unified synergistic retrieval of clouds, aerosols, and precipitation from EarthCARE: the ACM-CAP product, Atmospheric Measurement Techniques. DOI: 10.5194/amt-16-3459-2023
- Megan Stretton, William Morrison, Robin Hogan, Sue Grimmond (January 2023) Evaluation of vertically resolved longwave radiation in SPARTACUS-Surface 0.7.3 and the sensitivity to urban surface temperatures. DOI: 10.5194/egusphere-2022-1002
- Peter Ukkonen, Robin Hogan (June 2023) Implementation of a machine-learned gas optics parameterization in the ECMWF Integrated Forecasting System: RRTMGP-NN 2.0, Geoscientific Model Development. DOI: 10.5194/gmd-16-3241-2023
- Irbah Abdanour, Julien Delanoë, Gerd-Jan van Zadelhoff, David P. Donovan, Pavlos Kollias, Bernat Puigdomènech Treserras, Shannon Mason, Robin Hogan, Aleksandra Tatarevic (June 2023) The classification of atmospheric hydrometeors and aerosols from the EarthCARE radar and lidar: the A-TC, C-TC and AC-TC products, Atmospheric Measurement Techniques. DOI: 10.5194/amt-16-2795-2023
- 2022
- Chloe Brimicombe, Tiago Quintino, Simon Smart, Claudia Di Napoli, Robin Hogan, Hannah L. Cloke [ORCID iD: 0000-0002-1472-868X], Florian Pappenberger (April 2022) Calculating the Cosine of the Solar Zenith Angle for Thermal Comfort Indices, ECMWF Technical Memoranda n. 895. DOI: 10.21957/o7pcu1x2b
- David Meyer, Robin Hogan, Peter Dueben, Shannon Mason (March 2022) Machine Learning Emulation of 3D Cloud Radiative Effects, Journal of Advances in Modeling Earth Systems. DOI: 10.1029/2021ms002550
- David Meyer, Sue Grimmond, Peter Dueben, Robin Hogan, Maarten van Reeuwijk (March 2022) Machine Learning Emulation of Urban Land Surface Processes, Journal of Advances in Modeling Earth Systems. DOI: 10.1029/2021ms002744
- Robin Hogan, Marco Matricardi (October 2022) A Tool for Generating Fast k‐Distribution Gas‐Optics Models for Weather and Climate Applications, Journal of Advances in Modeling Earth Systems. DOI: 10.1029/2022ms003033
- Beatriz M. Monge-Sanz, Alessio Bozzo, Nicholas Byrne, Martyn Chipperfield, Michail Diamantakis, Johannes Flemming, Lesley J. Gray, Robin Hogan, Luke Jones, Linus Magnusson, Inna Polichtchouk, Theodore G. Shepherd, Nils Wedi, Antje Weisheimer (April 2022) A stratospheric prognostic ozone for seamless Earth system models: performance, impacts and future, Atmospheric Chemistry and Physics. DOI: 10.5194/acp-22-4277-2022
- 2021
- Ryan Williams, Robin Hogan, Inna Polichtchouk, Michaela Hegglin, Timothy Stockdale, Johannes Flemming (October 2021) Evaluating the impact of prognostic ozone in IFS NWP forecasts, ECMWF Technical Memoranda n. 887. DOI: 10.21957/rakfo1qo3
- Najda Villefranque, Stéphane Blanco, Fleur Couvreux, Richard Fournier, Jacques Gautrais, Robin J. Hogan, Frédéric Hourdin, Victoria Volodina, Daniel Williamson (April 2021) Process‐Based Climate Model Development Harnessing Machine Learning: III. The Representation of Cumulus Geometry and Their 3D Radiative Effects, Journal of Advances in Modeling Earth Systems. DOI: 10.1029/2020ms002423
- Najda Villefranque, Robin J. Hogan (July 2021) Evidence for the 3D Radiative Effects of Boundary‐Layer Clouds From Observations of Direct and Diffuse Surface Solar Fluxes, Geophysical Research Letters. DOI: 10.1029/2021gl093369
- Joe McNorton, Gabriele Arduini, N. Bousserez, A. Agustí‐Panareda, Gianpaolo Balsamo, S. Boussetta, M. Choulga, I. Hadade, R. J. Hogan (June 2021) An Urban Scheme for the ECMWF Integrated Forecasting System: Single‐Column and Global Offline Application, Journal of Advances in Modeling Earth Systems. DOI: 10.1029/2020ms002375
- David Meyer, Thomas Nagler, Robin Hogan (August 2021) Copula-based synthetic data augmentation for machine-learning emulators, Geoscientific Model Development. DOI: 10.5194/gmd-14-5205-2021
- Inna Polichtchouk, Peter Bechtold, Massimo Bonavita, Richard Forbes, Sean Healy, Robin Hogan, Patrick Laloyaux, Michael Rennie, Timothy Stockdale, Nils Wedi, Michail Diamantakis, Johannes Flemming, Stephen English, Lars Isaksen, Filip Vána, Sonja Gisinger, Nicholas Byrne (January 2021) Stratospheric modelling and assimilation, ECMWF Technical Memoranda n. 877. DOI: 10.21957/25hegfoq
- 2020
- Mark Fielding, Sophia A. K. Schäfer, Robin J. Hogan, Richard Forbes (April 2020) Parametrizing cloud geometry and its application in a subgrid cloud‐edge erosion scheme, Quarterly Journal of the Royal Meteorological Society. DOI: 10.1002/qj.3758
- Claudia Di Napoli, Robin Hogan, Florian Pappenberger (July 2020) Mean radiant temperature from global-scale numerical weather prediction models, International Journal of Biometeorology. DOI: 10.1007/s00484-020-01900-5
- Robin Hogan, Marco Matricardi (December 2020) Evaluating and improving the treatment of gases in radiation schemes: the Correlated K-Distribution Model Intercomparison Project (CKDMIP), Geoscientific Model Development. DOI: 10.5194/gmd-13-6501-2020
- Hans Hersbach, Bill Bell, Paul Berrisford, Shoji Hirahara, András Horányi, Joaquin Muñoz-Sabater, Julien Nicolas, Carole Peubey, Raluca Radu, Dinand Schepers, Adrian Simmons, Cornel Soci, Saleh Abdalla, Xavier Abellan Ecija, Gianpaolo Balsamo, Peter Bechtold, Gionata Biavati, Jean Bidlot, Massimo Bonavita, Giovanna De Chiara, Per Dahlgren, Dick Dee, Michail Diamantakis, Rossana Dragani, Johannes Flemming, Richard Forbes, Manuel Fuentes, Alan Geer, Leopold Haimberger, Sean Healy, Robin Hogan, Elías Hólm, Marta Janiskova, Sarah Keeley, Patrick Laloyaux, Philippe Lopez, Cristina Lupu, Gabor Radnoti, Patricia de Rosnay, Iryna Rozum, Freja Vamborg, sebastien villaume, Jean-Noel THEPAUT (July 2020) The ERA5 global reanalysis, Quarterly Journal of the Royal Meteorological Society. DOI: 10.1002/qj.3803
- Peter Ukkonen, Robert Pincus, Robin Hogan, Kristian Pagh Nielsen, Eigil Kaas (December 2020) Accelerating Radiation Computations for Dynamical Models With Targeted Machine Learning and Code Optimization, Journal of Advances in Modeling Earth Systems. DOI: 10.1029/2020ms002226
- Kevin Wolf, André Ehrlich, Mario Mech, Robin J. Hogan, Manfred Wendisch (August 2020) Evaluation of ECMWF Radiation Scheme Using Aircraft Observations of Spectral Irradiance above Clouds, Journal of the Atmospheric Sciences. DOI: 10.1175/jas-d-19-0333.1
- 2019
- Robin J. Hogan (October 2019) Flexible Treatment of Radiative Transfer in Complex Urban Canopies for Use in Weather and Climate Models, Boundary-Layer Meteorology. DOI: 10.1007/s10546-019-00457-0
- Robin J. Hogan, Mark D. Fielding, Howard W. Barker, Najda Villefranque, Sophia A. K. Schäfer (July 2019) Entrapment: An Important Mechanism to Explain the Shortwave 3D Radiative Effect of Clouds, Journal of the Atmospheric Sciences. DOI: 10.1175/jas-d-18-0366.1
- Sarah-Jane Lock, Simon T. K. Lang, Martin Leutbecher, Robin J. Hogan, Frederic Vitart (September 2019) Treatment of model uncertainty from radiation by the Stochastically Perturbed Parametrization Tendencies (SPPT) scheme and associated revisions in the ECMWF ensembles, Quarterly Journal of the Royal Meteorological Society. DOI: 10.1002/qj.3570
- Jerónimo Escribano, Alessio Bozzo, Philippe Dubuisson, Johannes Flemming, Robin Hogan, Laurent C.-Labonnote, Olivier Boucher (February 2019) A benchmark for testing the accuracy and computational cost of shortwave top-of-atmosphere reflectance calculations in clear-sky aerosol-laden atmospheres, Geoscientific Model Development. DOI: 10.5194/gmd-12-805-2019
- Robin J. Hogan (March 2019) An Exponential Model of Urban Geometry for Use in Radiative Transfer Applications, Boundary-Layer Meteorology. DOI: 10.1007/s10546-018-0409-8
- Shannon Mason, Robin J. Hogan, Christopher D. Westbrook, Stefan Kneifel, Dmitri Moisseev, Leonie von Terzi (September 2019) The importance of particle size distribution and internal structure for triple-frequency radar retrievals of the morphology of snow, Atmospheric Measurement Techniques. DOI: 10.5194/amt-12-4993-2019
- 2018
- Robin J. Hogan, Alessio Bozzo (July 2018) A flexible and efficient radiation scheme for the ECMWF model, Journal of Advances in Modeling Earth Systems. DOI: 10.1029/2018ms001364
- Rossana Dragani, Angela Benedetti, Johannes Flemming, Gianpaolo Balsamo, Michail Diamantakis, Alan Geer, Robin Hogan, Timothy Stockdale, Melanie Ades, Anna Agusti-Panareda, Barré J., Peter Bechtold, Alessio Bozzo, Hans Hersbach, Elias Hólm, Zak Kipling, Antje Inness, Julie Letertre-Danczak, Sebastien Massart, Marco Matricardi, Tony McNally, M. Parrington, irina sandu, Cornel Soci, Frederic Vitart (December 2018) Atmospheric Composition priority developments for Numerical Weather Prediction, ECMWF Technical Memoranda n. 833. DOI: 10.21957/5e0whui2y
- Robin Hogan, Alessio Bozzo (September 2018) A new radiation scheme for the IFS, ECMWF Newsletter, issue 155, pp. 26-31. DOI: 10.21957/ab84rhs9t5
- Robin J. Hogan, Tristan Quaife, Renato Braghiere (January 2018) Fast matrix treatment of 3-D radiative transfer in vegetation canopies: SPARTACUS-Vegetation 1.1, Geoscientific Model Development. DOI: 10.5194/gmd-11-339-2018
- I. Polichtchouk, T. G. Shepherd, R. J. Hogan, P. Bechtold (May 2018) Sensitivity of the Brewer–Dobson Circulation and Polar Vortex Variability to Parameterized Nonorographic Gravity Wave Drag in a High-Resolution Atmospheric Model, Journal of the Atmospheric Sciences. DOI: 10.1175/jas-d-17-0304.1
- Shepherd T.G., I. Polichtchouk, Robin Hogan, Simmons A.J. (June 2018) Report on Stratosphere Task Force, ECMWF Technical Memorandum n. 824. DOI: 10.21957/0vkp0t1xx
- Hans Hersbach, Patricia de Rosnay, Bill Bell, Dinand Schepers, Adrian Simmons, Cornel Soci, Saleh Abdalla, Magdalena A. Balmaseda, Gianpaolo Balsamo, Peter Bechtold, P. Berrisford, Jean Bidlot, de Boisséson E., Massimo Bonavita, Browne P., Roberto Buizza, Per Dahlgren, Dick Dee, Rossana Dragani, Michail Diamantakis, Johannes Flemming, Richard Forbes, Alan Geer, Thomas Haiden, Elias Hólm, L. Haimberger, Robin Hogan, Andras Horanyi, Janiskova M., Patrick Laloyaux, Philippe Lopez, Joaquin Muñoz-Sabater, C. Peubey, Raluca Radu, David Richardson, Jean-Noel THEPAUT, Frederic Vitart, Yang X, Ervin Zsoter, Hao Zuo (December 2018) Operational global reanalysis: progress, future directions and synergies with NWP, ERA Report Series n. 27. DOI: 10.21957/tkic6g3wm
- 2017
- Alan Geer, Maike Ahlgrimm, Peter Bechtold, Massimo Bonavita, Niels Bormann, Stephen English, Mark Fielding, Richard Forbes, Robin Hogan, Elias Hólm, Marta Janiskova, Katrin Lonitz, Philippe Lopez, Marco Matricardi, irina sandu, P. Weston (September 2017) Assimilating observations sensitive to cloud and precipitation, ECMWF Technical Memoranda n. 815. DOI: 10.21957/sz7cr1dym
- R. Giles Harrison, Gavin Pretor-Pinney, Graeme J. Marlton, Graeme D. Anderson, Daniel J. Kirshbaum, Robin J. Hogan (May 2017) Asperitas - a newly identified cloud supplementary feature, Weather. DOI: 10.1002/wea.2996
- Roberto Buizza, Peter Bechtold, Massimo Bonavita, Niels Bormann, Alessio Bozzo, Thomas Haiden, Robin Hogan, Elias Hólm, Gabor Radnoti, David Richardson, Michael Sleigh (September 2017) IFS Cycle 43r3 brings model and assimilation updates, ECMWF newsletter, issue 152, pp. 18-22. DOI: 10.21957/76t4e1
- Jussi Leinonen, Stefan Kneifel, Robin J. Hogan (August 2017) Evaluation of the Rayleigh-Gans approximation for microwave scattering by rimed snowflakes, Quarterly Journal of the Royal Meteorological Society. DOI: 10.1002/qj.3093
- Robin J. Hogan, Ryan Honeyager, Jani Tyynelä, Stefan Kneifel (January 2017) Calculating the millimetre-wave scattering phase function of snowflakes using the self-similar Rayleigh-Gans Approximation, Quarterly Journal of the Royal Meteorological Society. DOI: 10.1002/qj.2968
- Martin Leutbecher, Sarah-Jane Lock, Pirkka Ollinaho, Simon T. K. Lang, Gianpaolo Balsamo, Peter Bechtold, Massimo Bonavita, Hannah M. Christensen, Michail Diamantakis, Emanuel Dutra, Stephen English, Michael Fisher, Richard M. Forbes, Jacqueline Goddard, Thomas Haiden, Robin J. Hogan, Stephan Juricke, Heather Lawrence, Dave MacLeod, Linus Magnusson, Sylvie Malardel, Sebastien Massart, Irina Sandu, Piotr K. Smolarkiewicz, Aneesh Subramanian, Frédéric Vitart, Nils Wedi, Antje Weisheimer (July 2017) Stochastic representations of model uncertainties at ECMWF: state of the art and future vision, Quarterly Journal of the Royal Meteorological Society. DOI: 10.1002/qj.3094
- Shannon L. Mason, J. Christine Chiu, Robin J. Hogan, Lin Tian (April 2017) Improved rain-rate and drop-size retrievals from airborne andspaceborne Doppler radar, Atmospheric Chemistry and Physics Discussions. DOI: 10.5194/acp-2017-280
- Andrew I. Barrett, Robin J. Hogan, Richard M. Forbes (September 2017) Why are mixed-phase altocumulus clouds poorly predicted by large-scale models? Part 2. Vertical resolution sensitivity and parameterization, Journal of Geophysical Research: Atmospheres. DOI: 10.1002/2016jd026322
- Andrew I. Barrett, Robin J. Hogan, Richard M. Forbes (September 2017) Why are mixed-phase altocumulus clouds poorly predicted by large-scale models? Part 1. Physical processes, Journal of Geophysical Research: Atmospheres. DOI: 10.1002/2016jd026321
- Robin Hogan, Maike Ahlgrimm, Gianpaolo Balsamo, Anton Beljaars, P. Berrisford, Alessio Bozzo, Francesca Di Giuseppe, R.M. Forbes, Thomas Haiden, Simon Lang, Michael Mayer, I. Polichtchouk, irina sandu, Frederic Vitart, Nils Wedi (September 2017) Radiation in numerical weather prediction, ECMWF Technical Memoranda n. 816. DOI: 10.21957/2bd5dkj8x
- I. Polichtchouk, Robin Hogan, T.G. Shepherd, Peter Bechtold, Timothy Stockdale, S. Malardel, Sarah-Jane Lock, Linus Magnusson (September 2017) What influences the middle atmosphere circulation in the IFS?, ECMWF Technical Memoranda n. 809. DOI: 10.21957/mfsnfv15o
- 2016
- Hogan Robin J., Hirahara Shoji (September 2016) Effect of solar zenith angle specification in models on mean shortwave fluxes and stratospheric temperatures, Geophysical Research Letters n. 1, pp. 482-488. DOI: 10.1002/2015GL066868
- Schafer Sophia A. K., Hogan Robin J., Klinger Carolin, Chiu J. Christine, Mayer Bernhard (September 2016) Representing 3-D cloud radiation effects in two-stream schemes: 1. Longwave considerations and effective cloud edge length, Journal of Geophysical Research-Atmospheres n. 14, pp. 8567-8582.
- Hogan Robin J., Schafer Sophia A. K., Klinger Carolin, Chiu J. Christine, Mayer Bernhard (September 2016) Representing 3-D cloud radiation effects in two-stream schemes: 2. Matrix formulation and broadband evaluation, Journal of Geophysical Research-Atmospheres n. 14, pp. 8583-8599.
- Pirkka Ollinaho, Sarah-Jane Lock, Martin Leutbecher, Peter Bechtold, Anton Beljaars, Alessio Bozzo, Richard M. Forbes, Thomas Haiden, Robin J. Hogan, Irina Sandu (September 2016) Towards process-level representation of model uncertainties: stochastically perturbed parametrizations in the ECMWF ensemble, Quarterly Journal of the Royal Meteorological Society. DOI: 10.1002/qj.2931
- M. Haeffelin, S. Crewell, A. J. Illingworth, G. Pappalardo, H. Russchenberg, M. Chiriaco, K. Ebell, R. J. Hogan, F. Madonna (April 2016) Parallel Developments and Formal Collaboration between European Atmospheric Profiling Observatories and the U.S. ARM Research Program, Meteorological Monographs. DOI: 10.1175/amsmonographs-d-15-0045.1
- Robin Hogan, Alessio Bozzo (September 2016) ECRAD: A new radiation scheme for the IFS, ECMWF Technical Memorandum n. 787. DOI: 10.21957/whntqkfdz
- P. Ollinaho, Sarah-Jane Lock, Martin Leutbecher, Peter Bechtold, Anton Beljaars, Alessio Bozzo, R.M. Forbes, Thomas Haiden, Robin Hogan, irina sandu (September 2016) Towards process-level representation of model uncertainties: Stochastically perturbed parameterisations in the ECMWF ensemble, ECMWF Technical Memoranda n. 784. DOI: 10.21957/jjk9l5yy
- 2015
- Illingworth A. J., Barker H. W., Beljaars A., Ceccaldi M., Chepfer H., Clerbaux N., Cole J., Delanoe J., Domenech C., Donovan D. P., Fukuda S., Hirakata M., Hogan R. J., Huenerbein A., Kollias P., Kubota T., Nakajima T., Nakajima T. Y., Nishizawa T., Ohno Y., Okamoto H., Oki R., Sato K., Satoh M., Shephard M. W., Velazquez-Blazquez A., Wandinger U., Wehr T., van Zadelhoff G. -J. (September 2015) THE EARTHCARE SATELLITE The Next Step Forward in Global Measurements of Clouds, Aerosols, Precipitation, and Radiation, Bulletin of the American Meteorological Society n. 8, pp. 1311-1332. DOI: 10.1175/BAMS-D-12-00227.1
- Stein Thorwald H. M., Parker Douglas J., Hogan Robin J., Birch Cathryn E., Holloway Christopher E., Lister Grenville M. S., Marsham John H., Woolnough Steven J. (September 2015) The representation of the West African monsoon vertical cloud structure in the Met Office Unified Model: an evaluation with CloudSat, Quarterly Journal of the Royal Meteorological Society n. 693, pp. 3312-3324. DOI: 10.1002/qj.2614
- Hogan Robin J., Bozzo Alessio (September 2015) Mitigating errors in surface temperature forecasts using approximate radiation updates, Journal of Advances in Modeling Earth Systems n. 2, pp. 836-853. DOI: 10.1002/2015MS000455
- Hanley Kirsty E., Plant Robert S., Stein Thorwald H. M., Hogan Robin J., Nicol John C., Lean Humphrey W., Halliwell Carol, Clark Peter A. (September 2015) Mixing-length controls on high-resolution simulations of convective storms, Quarterly Journal of the Royal Meteorological Society n. 686, pp. 272-284. DOI: 10.1002/qj.2356
- Wood Robert, Wyant Matthew, Bretherton Christopher S., Remillard Jasmine, Kollias Pavlos, Fletcher Jennifer, Stemmler Jayson, de Szoeke Simone, Yuter Sandra, Miller Matthew, Mechem David, Tselioudis Georgrge, Chiu J. Christine, Mann Julian A. L., O'Connor Ewan J., Hogan Robin J., Dong Xiquan, Miller Markrk, Ghate Virendra, Jefferson Anne, Min Qilong, Minnis Patrickck, Palikonda Rabindra, Albrecht Bruce, Luke Ed, Hannay Cecile, Lin Yanluan (September 2015) CLOUDS, AEROSOLS, AND PRECIPITATION IN THE MARINE BOUNDARY LAYER An ARM Mobile Facility Deployment, Bulletin of the American Meteorological Society n. 3, pp. 419-439. DOI: 10.1175/BAMS-D-13-00180.1
- Nicol J. C., Hogan R. J., Stein T. H. M., Hanley K. E., Clark P. A., Halliwell C. E., Lean H. W., Plant R. S. (September 2015) Convective updraught evaluation in high-resolution NWP simulations using single-Doppler radar measurements, Quarterly Journal of the Royal Meteorological Society n. 693, pp. 3177-3189. DOI: 10.1002/qj.2602
- Harvey N. J., Hogan R. J., Dacre H. F. (September 2015) Evaluation of boundary-layer type in a weather forecast model utilizing long-term Doppler lidar observations, Quarterly Journal of the Royal Meteorological Society n. 689, pp. 1345-1353. DOI: 10.1002/qj.2444
- Fielding M. D., Chiu J. C., Hogan R. J., Feingold G., Eloranta E., O'Connor E. J., Cadeddu M. P. (September 2015) Joint retrievals of cloud and drizzle in marine boundary layer clouds using ground-based radar, lidar and zenith radiances, Atmospheric Measurement Techniques n. 7, pp. 2663-2683. DOI: 10.5194/amt-8-2663-2015
- Stein Thorwald H. M., Hogan Robin J., Clark Peter A., Halliwell Carol E., Hanley Kirsty E., Lean Humphrey W., Nicol John C., Plant Robert S. (September 2015) The DYMECS Project: A Statistical Approach for the Evaluation of Convective Storms in High-Resolution NWP Models, Bulletin of the American Meteorological Society n. 6, pp. 939-951. DOI: 10.1175/BAMS-D-13-00279.1
- Robin Hogan, Alessio Bozzo (September 2015) Reducing surface temperature errors at coastlines, ECMWF Newsletter, issue 145, pp. 30-34. DOI: 10.21957/lxcr5fqd
- Robin Hogan, Alessio Bozzo (February 2015) Mitigating surface temperature errors using approximate radiation updates, ECMWF Technical Memorandum n. 746. DOI: 10.21957/gak4abqr4
- Robin Hogan, S. Hirahara (August 2015) Effect of solar zenith angle specification on mean shortwave fluxes and stratospheric temperatures, ECMWF Technical Memorandum n. 758. DOI: 10.21957/jwv20erlv
- 2014
- Mann Julian A. L., Chiu J. Christine, Hogan Robin J., O'Connor Ewan J., L'Ecuyer Tristan S., Stein Thorwald H. M., Jefferson Anne (September 2014) Aerosol impacts on drizzle properties in warm clouds from ARM Mobile Facility maritime and continental deployments, Journal of Geophysical Research-Atmospheres n. 7, pp. 4136-4148. DOI: 10.1002/2013JD021339
- Bianchi Blandine, van Leeuwen Peter Jan, Hogan Robin J., Berne Alexis (September 2014) CORRIGENDUM, Journal of Hydrometeorology n. 2, pp. 907. DOI: 10.1175/JHM-D-14-0010.1
- Hogan Robin J., Westbrook Christopher D. (September 2014) Equation for the Microwave Backscatter Cross Section of Aggregate Snowflakes Using the Self-Similar Rayleigh-Gans Approximation, Journal of the Atmospheric Sciences n. 9, pp. 3292-3301. DOI: 10.1175/JAS-D-13-0347.1
- Pearson K. J., Lister G. M. S., Birch C. E., Allan R. P., Hogan R. J., Woolnough S. J. (September 2014) Modelling the diurnal cycle of tropical convection across the 'grey zone', Quarterly Journal of the Royal Meteorological Society n. 679, pp. 491-499. DOI: 10.1002/qj.2145
- Hogan Robin J. (September 2014) Fast Reverse-Mode Automatic Differentiation using Expression Templates in C++, Acm Transactions on Mathematical Software n. 4. DOI: 10.1145/2560359
- Delanoe J. M. E., Heymsfield A. J., Protat A., Bansemer A., Hogan R. J. (September 2014) Normalized particle size distribution for remote sensing application, Journal of Geophysical Research-Atmospheres n. 7, pp. 4204-4227. DOI: 10.1002/2013JD020700
- Fielding Mark D., Chiu J. Christine, Hogan Robin J., Feingold Graham (September 2014) A novel ensemble method for retrieving properties of warm cloud in 3-D using ground-based scanning radar and zenith radiances, Journal of Geophysical Research-Atmospheres n. 18, pp. 10912-10930. DOI: 10.1002/2014JD021742
- Chiu J. C., Holmes J. A., Hogan R. J., O'Connor E. J. (September 2014) The interdependence of continental warm cloud properties derived from unexploited solar background signals in ground-based lidar measurements, Atmospheric Chemistry and Physics n. 16, pp. 8389-8401. DOI: 10.5194/acp-14-8389-2014
- Stein Thorwald H. M., Hogan Robin J., Hanley Kirsty E., Nicol John C., Lean Humphrey W., Plant Robert S., Clark Peter A., Halliwell Carol E. (September 2014) The Three-Dimensional Morphology of Simulated and Observed Convective Storms over Southern England, Monthly Weather Review n. 9, pp. 3264-3283. DOI: 10.1175/MWR-D-13-00372.1
- 2013
- Fielding Mark D., Chiu J. Christine, Hogan Robin J., Feingold Graham (September 2013) 3D cloud reconstructions: Evaluation of scanning radar scan strategy with a view to surface shortwave radiation closure, Journal of Geophysical Research-Atmospheres n. 16, pp. 9153-9167. DOI: 10.1002/jgrd.50614
- Harvey Natalie J., Hogan Robin J., Dacre Helen F. (September 2013) A method to diagnose boundary-layer type using Doppler lidar, Quarterly Journal of the Royal Meteorological Society n. 676, pp. 1681-1693. DOI: 10.1002/qj.2068
- Bianchi Blandine, van Leeuwen Peter Jan, Hogan Robin J., Berne Alexis (September 2013) A Variational Approach to Retrieve Rain Rate by Combining Information from Rain Gauges, Radars, and Microwave Links, Journal of Hydrometeorology n. 6, pp. 1897-1909. DOI: 10.1175/JHM-D-12-094.1
- Ceccaldi M., Delanoe J., Hogan R. J., Pounder N. L., Protat A., Pelon J. (September 2013) From CloudSat-CALIPSO to EarthCare: Evolution of the DARDAR cloud classification and its comparison to airborne radar-lidar observations, Journal of Geophysical Research-Atmospheres n. 14, pp. 7962-7981. DOI: 10.1002/jgrd.50579
- Hogan Robin J., Shonk Jonathan K. P. (September 2013) Incorporating the Effects of 3D Radiative Transfer in the Presence of Clouds into Two-Stream Multilayer Radiation Schemes, Journal of the Atmospheric Sciences n. 2, pp. 708-724. DOI: 10.1175/JAS-D-12-041.1
- Donovan D. P., Barker H. W., Hogan R. J., Wehr T., Eisinger M., Lajas D., Lefebvre A., EarthCARE Phase-B ESA JAXA Mission, Cahalan RF, Fischer J (September 2013) Scientific Aspects of the Earth Clouds, Aerosols, and Radiation Explorer (EarthCARE) Mission, Radiation Processes in the Atmosphere and Ocean (Irs2012), pp. 444-447. DOI: 10.1063/1.4804802
- 2012
- Pounder Nicola L., Hogan Robin J., Varnai Tamas, Battaglia Alessandro, Cahalan Robert F. (September 2012) A Variational Method to Retrieve the Extinction Profile in Liquid Clouds Using Multiple-Field-of-View Lidar, Journal of Applied Meteorology and Climatology n. 2, pp. 350-365. DOI: 10.1175/JAMC-D-10-05007.1
- Chiu J. C., Marshak A., Huang C. -H., Varnai T., Hogan R. J., Giles D. M., Holben B. N., O'Connor E. J., Knyazikhin Y., Wiscombe W. J. (September 2012) Cloud droplet size and liquid water path retrievals from zenith radiance measurements: examples from the Atmospheric Radiation Measurement Program and the Aerosol Robotic Network, Atmospheric Chemistry and Physics n. 21, pp. 10313-10329. DOI: 10.5194/acp-12-10313-2012
- Shonk Jonathan K. P., Hogan Robin J., Manners James (September 2012) Impact of improved representation of horizontal and vertical cloud structure in a climate model, Climate Dynamics n. 11-12, pp. 2365-2376. DOI: 10.1007/s00382-011-1174-2
- Hill Peter G., Hogan Robin J., Manners James, Petch Jon C. (September 2012) Parametrizing the horizontal inhomogeneity of ice water content using CloudSat data products, Quarterly Journal of the Royal Meteorological Society n. 668, pp. 1784-1793. DOI: 10.1002/qj.1893
- Hogan Robin J., Tian Lin, Brown Philip R. A., Westbrook Christopher D., Heymsfield Andrew J., Eastment Jon D. (September 2012) Radar Scattering from Ice Aggregates Using the Horizontally Aligned Oblate Spheroid Approximation, Journal of Applied Meteorology and Climatology n. 3, pp. 655-671. DOI: 10.1175/JAMC-D-11-074.1
- Zhao Chuanfeng, Xie Shaocheng, Klein Stephen A., Protat Alain, Shupe Matthew D., McFarlane Sally A., Comstock Jennifer M., Delanoe Julien, Deng Min, Dunn Maureen, Hogan Robin J., Huang Dong, Jensen Michael P., Mace Gerald G., McCoy Renata, O'Connor Ewan J., Turner David D., Wang Zhien (September 2012) Toward understanding of differences in current cloud retrievals of ARM ground-based measurements, Journal of Geophysical Research-Atmospheres. DOI: 10.1029/2011JD016792
- Robin J. Hogan, Ian B. Mason (February 2012) Deterministic Forecasts of Binary Events, Forecast Verification. DOI: 10.1002/9781119960003.ch3
- 2011
- Delanoe Julien, Hogan Robin J., Forbes Richard M., Bodas-Salcedo Alejandro, Stein Thorwald H. M. (September 2011) Evaluation of ice cloud representation in the ECMWF and UK Met Office models using CloudSat and CALIPSO data, Quarterly Journal of the Royal Meteorological Society n. 661, pp. 2064-2078. DOI: 10.1002/qj.882
- Stein T. H. M., Parker D. J., Delanoe J., Dixon N. S., Hogan R. J., Knippertz P., Maidment R. I., Marsham J. H. (September 2011) The vertical cloud structure of the West African monsoon: A 4 year climatology using CloudSat and CALIPSO, Journal of Geophysical Research-Atmospheres. DOI: 10.1029/2011JD016029
- Barker H. W., Jerg M. P., Wehr T., Kato S., Donovan D. P., Hogan R. J. (September 2011) A 3D cloud-construction algorithm for the EarthCARE satellite mission, Quarterly Journal of the Royal Meteorological Society n. 657, pp. 1042-1058. DOI: 10.1002/qj.824
- Stein Thorwald H. M., Delanoe Julien, Hogan Robin J. (September 2011) A Comparison among Four Different Retrieval Methods for Ice-Cloud Properties Using Data from CloudSat, CALIPSO, and MODIS, Journal of Applied Meteorology and Climatology n. 9, pp. 1952-1969. DOI: 10.1175/2011JAMC2646.1
- Marenco Franco, Hogan Robin J. (September 2011) Determining the contribution of volcanic ash and boundary layer aerosol in backscatter lidar returns: A three-component atmosphere approach, Journal of Geophysical Research-Atmospheres. DOI: 10.1029/2010JD015415
- Dacre H. F., Grant A. L. M., Hogan R. J., Belcher S. E., Thomson D. J., Devenish B. J., Marenco F., Hort M. C., Haywood J. M., Ansmann A., Mattis I., Clarisse L. (September 2011) Evaluating the structure and magnitude of the ash plume during the initial phase of the 2010 Eyjafjallajokull eruption using lidar observations and NAME simulations, Journal of Geophysical Research-Atmospheres. DOI: 10.1029/2011JD015608
- 2010
- Delanoe Julien, Hogan Robin J. (September 2010) Combined CloudSat-CALIPSO-MODIS retrievals of the properties of ice clouds, Journal of Geophysical Research-Atmospheres. DOI: 10.1029/2009JD012346
- O'Connor Ewan J., Illingworth Anthony J., Brooks Ian M., Westbrook Christopher D., Hogan Robin J., Davies Fay, Brooks Barbara J. (September 2010) A Method for Estimating the Turbulent Kinetic Energy Dissipation Rate from a Vertically Pointing Doppler Lidar, and Independent Evaluation from Balloon-Borne In Situ Measurements, Journal of Atmospheric and Oceanic Technology n. 10, pp. 1652-1664. DOI: 10.1175/2010JTECHA1455.1
- Westbrook C. D., Illingworth A. J., O'Connor E. J., Hogan R. J. (September 2010) Doppler lidar measurements of oriented planar ice crystals falling from supercooled and glaciated layer clouds, Quarterly Journal of the Royal Meteorological Society n. 646, pp. 260-276. DOI: 10.1002/qj.528