Journal articles

In preparation / in review

• (61) Using continuous ground-based radar and lidar measurements for evaluating the representation of clouds in four operational models
  Bouniol, D., A. Protat, J. Delanoe, J. Pelon, D. P. Donovan, J.-M. Piriou, F. Bouyssel, A. M. Tompkins, D. R. Wilson, Y. Morille, M. Haeffelin, E. J. O'Connor, R. J. Hogan, A. J. Illingworth. Submitted to J. Appl. Meteorol. Climatology
• (65) 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
  O'Connor, E. J., A. J. Illingworth, I. M. Brooks, C. D. Westbrook, R. J. Hogan, F. Davies and B. J. Brooks. Submitted to J. Atmos. Oceanic Technol.: PDF
• (59) Effect of improving representation of horizontal and vertical cloud structure on the Earth's radiation budget - 1. Review and parameterisation.
  Shonk, J. K. P., R. J. Hogan, J. M. Edwards and G. G. Mace. Submitted to Q. J. R. Meteorol. Soc.: PDF
• (60) Effect of improving representation of horizontal and vertical cloud structure on the Earth's radiation budget - 2. The global effects.
  Shonk, J. K. P. and R. J. Hogan. Submitted to Q. J. R. Meteorol. Soc.: PDF
• (66) Estimates of drizzle drop size and precipitation rate using two-colour lidar measurements
  Westbrook, C. D., R. J. Hogan, E. J. O'Connor and A. J. Illingworth. Submitted to Atmos. Meas. Techn.: PDF
• (63) Using Doppler radar and a simple explicit microphysics model to diagnose problems with ice sublimation depth scales in forecast models
  Wilkinson, J. M., R. J. Hogan and A. J. Illingworth. Submitted to Q. J. R. Meteorol. Soc.: PDF

In press

• (55) Combined CloudSat-CALIPSO-MODIS retrievals of the properties of ice clouds
  Delanoe, J., and R. J. Hogan. J. Geophys. Res., in press.
• (57) The full-spectrum correlated k method for longwave atmospheric radiative transfer: treatment of gaseous overlap
  Hogan, R. J., J. Atmos. Sci., in press: PDF
• (62) Equitability revisited: Why the `equitable threat score' is not equitable
  Hogan, R. J., C. A. T. Ferro, I. T. Jolliffe and D. B. Stephenson. Weath. Forecasting, in press: PDF

2010

• (64) Multiple-scattering in radar systems: a review
  Battaglia, A., S. Tanelli, S. Kobayashi, D. Zrnic, R. J. Hogan and C. Simmer. J. Quant. Spectroscopy, 111, 917-947: PDF
• (58) Doppler lidar measurements of oriented planar ice crystals falling from supercooled and glaciated layer clouds
  Westbrook, C. D., A. J. Illingworth, E. J. O'Connor and R. J. Hogan. Q. J. R. Meteorol. Soc., 136, 260-276.

2009

• (56) Evaluating forecasts of the evolution of the cloudy boundary layer using diurnal composites of radar and lidar observations
  Barrett, A. I., R. J. Hogan and E. J. O'Connor. Geophys. Res. Lett., 36, L17811, doi:10.1029/2009GL038919: PDF
• (53) Comparison of balloon-carried atmospheric motion sensors with Doppler lidar measurements
  Harrison, R. G., A. M. Heath, R. J. Hogan and G. W. Rogers. Rev. Sci. Inst., 80, 026108: PDF .
• (52) Vertical velocity variance and skewness in clear and cloud-topped boundary layers as revealed by Doppler lidar
  Hogan, R. J., A. L. M. Grant, A. J. Illingworth, G. N. Pearson and E. J. O'Connor. Q. J. R. Meteorol. Soc., 135, 635-643: PDF
• (54) Verification of cloud-fraction forecasts
  Hogan, R. J., E. J. O'Connor and A. J. Illingworth. Q. J. R. Meteorol. Soc., 135, 1494-1511: PDF

2008

• (51) A variational scheme for retrieving ice cloud properties from combined radar, lidar and infrared radiometer
  Delanoe, J., and R. J. Hogan. J. Geophys. Res., 113, D07204, doi:10.1029/2007JD009000: PDF
• (50) A one-dimensional finite-element boundary layer model with a vertical adaptive grid
  Dunbar, T. M., E. Hanert and R. J. Hogan. Bound. Layer. Meteorol., 128, 459-472: PDF
• (49) Retrospective cloud determinations from surface solar radiation measurements
  Harrison, R. G., N. Chalmers and R. J. Hogan. Atmos. Res., 90, 54-62.
• (48) Testing IWC retrieval methods using radar and ancillary measurements with in situ data
  Heymsfield, A. J., A. Protat, R. T. Austin, D. Bouniol, R. J. Hogan, H. Okamoto, K. Sato, G.-J. van Zadelhoff, D. P. Donovan and Z. Wang, J. Appl. Meteorol. Climatology, 47, 135-163.
• (47) Fast lidar and radar multiple-scattering models - 1. Small-angle scattering using the photon variance-covariance method
  Hogan, R. J. J. Atmos. Sci., 65, 3621-3635: PDF
• (46) Fast lidar and radar multiple-scattering models - 2. Wide-angle scattering using the time-dependent two-stream approximation
  Hogan, R. J., and A. Battaglia. J. Atmos. Sci., 65, 3636-3651: PDF
• (45) Estimating mass and momentum fluxes in a line of cumulonimbus observed by a single high-resolution Doppler radar
  Hogan, R. J., A. J. Illingworth and K. Halladay. Quart. J. Roy. Meteorol. Soc., 134, 1127-1141: PDF
• (44) Tripleclouds: an efficient method for representing horizontal cloud inhomogeneity in 1D radiation schemes by using three regions at each height
  Shonk, J. K. P., and R. J. Hogan. J. Climate, 21, 2352-2370: PDF
• (43) The capacitance of pristine ice crystals and aggregate snowflakes
  Westbrook, C. D., R. J. Hogan, A. J. Illingworth. J. Atmos. Sci., 65, 206-219.
• (42) Use of a lidar forward model for global comparisons of cloud fraction between the ICESat lidar and the ECMWF model
  Wilkinson, J. M., R. J. Hogan, A. J. Illingworth and A. Benedetti. Mon. Weath. Rev., 136, 3742-3759: PDF
• (41) Three-dimensional radiative transfer in mid-latitude cirrus clouds
  Zhong, W., R. J. Hogan and J. D. Haigh. Quart. J. Roy. Meteorol. Soc., 134, 199-215: PDF

2007

• (40) Accurate liquid water path retrieval from low-cost microwave radiometers using additional information from lidar and operational forecast models
  Gaussiat, N., R. J. Hogan and A. J. Illingworth. J. Atmos. Oceanic Technol., 24, 1562-1575: PDF
• (39) A sensitivity study of the effect of horizontal photon transport on the radiative forcing of contrails
  Gounou, A., and R. J. Hogan. J. Atmos. Sci., 64, 1706-1716: PDF
• (38) Response to comment on "In-situ atmospheric turbulence measurement using the terrestrial magnetic field - a compass for a radiosonde" by Ralph D. Lorenz
  Harrison, R. G., and R. J. Hogan. J. Atmos. Oceanic Technol., 24, 1521-1522.
• (37) A three-dimensional magnetometer for motion sensing of a balloon-carried atmospheric measurement package
  Harrison, R. G., G. W. Rogers and R. J. Hogan. Rev. Sci. Inst., 78, 124501.
• (36) Refinements to ice particle mass dimensional and terminal velocity relationships for ice clouds - 2. Evaluation and parameterizations of ensemble ice particle sedimentation velocities
  Heymsfield, A. J., G.-J. van Zadelhoff, D. P. Donovan, F. Fabry, R. J. Hogan and A. J. Illingworth. J. Atmos. Sci., 64,1068-1088.
• (35) A variational scheme for retrieving rainfall rate and hail reflectivity fraction from polarization radar
  Hogan, R. J., J. Appl. Meteorol. Climatology, 46, 1544-1564: PDF
• (34) Cloudnet - continuous evaluation of cloud profiles in seven operational models using ground-based observations
  Illingworth, A. J., R. J. Hogan, E. J. O'Connor, D. Bouniol, M. E. Brooks, J. Delanoe, D. P. Donovan, J. D. Eastment, N. Gaussiat, J. W. F. Goddard, M. Haeffelin, H. Klein Baltink, O. A. Krasnov, J. Pelon, J.-M. Piriou, A. Protat, H. W. J. Russchenberg, A. Seifert, A. M. Tompkins, G.-J. van Zadelhoff, F. Vinit, U. Willen, D. R. Wilson and C. L. Wrench. Bull. Am. Meteorol. Soc., 88, 883-898: PDF
• (33) Comparison between ATSR-2 stereo, MOS O₂ A-band and ground-based cloud top heights
  Naud, C., K. L. Mitchell, J.-P. Muller, E. E. Clothiaux, P. Albert, R. Preusker, J. Fischer, R. J. Hogan. Int. J. Remote Sensing, 28, 1969-1987.
• (32) Theory and observations of ice particle evolution in cirrus using Doppler radar: evidence for aggregation
  Westbrook, C. D., R. J. Hogan, A. J. Illingworth and E. J. O'Connor. Geophys. Res. Lett., 34, L02824, doi:10.1029/2006GL027863: PDF

2006

• (31) Ice sublimation depth scales in frontal cloud
  Forbes, R. M., and R. J. Hogan. Q. J. R. Meteorol. Soc., 132, 865-884.
• (30) In-situ atmospheric turbulence measurement using the terrestrial magnetic field: a compass for a radiosonde
  Harrison, R. G., and R. J. Hogan. J. Atmos. Oceanic Technol., 23, 517-523: PDF.
• (29) Fast approximate calculation of multiply scattered lidar returns
  Hogan, R. J. Applied Optics, 45, 5984-5992: PDF
• (28) Independent evaluation of the ability of spaceborne radar and lidar to retrieve the microphysical and radiative properties of ice clouds
  Hogan, R. J., D. P. Donovan, C. Tinel, M. A. Brooks, A. J. Illingworth and J. P. V. Poiares Baptista. J. Atmos. Oceanic Technol., 23, 211-227: PDF
• (27) The retrieval of ice water content from radar reflectivity factor and temperature and its use in the evaluation of a mesoscale model
  Hogan, R. J., M. P. Mittermaier and A. J. Illingworth. J. Appl. Meteorol. Climatology, 45, 301-317: PDF
• (26) Evaluation of a large eddy model simulation of a mixed-phase altocumulus cloud using microwave radiometer, lidar and Doppler radar data
  Marsham, J., S. Dobbie and R. J. Hogan. Q. J. R. Meteorol. Soc., 132, 1693-1715: PDF
• (25) Assessing vertical resolution requirements for operational weather radar data quality
  Mittermaier, M. P., A. J. Illingworth and R. J. Hogan. Atmos. Sci. Lett., 7, 9-14.

2005

• (24) Parameterizing the difference in cloud fraction defined by area and volume as observed with radar and lidar
  Brooks, M. E., R. J. Hogan and A. J. Illingworth. J. Atmos. Sci., 62, 2248-2260.
• (23) Numerical modelling of mixed-phase frontal clouds observed during the CWVC project
  Clark, P. D., T. W. Choularton, P. R. A. Brown, P. R. Field, A. J. Illingworth and R. J. Hogan. Q. J. R. Meteorol. Soc., 131, 1677-1694.
• (22) Parametrization of ice particle size distributions for mid-latitude stratiform cloud
  Field, P. R., R. J. Hogan, P. R. A. Brown, A. J. Illingworth, T. W. Choularton and R. J. Cotton. Q. J. R. Meteorol. Soc., 131, 1997-2017. PDF
• (21) A 3D stochastic cloud model for investigating the radiative properties of inhomogeneous cirrus clouds
  Hogan, R. J., and S. F. Kew. Q. J. R. Meteorol. Soc., 131, 2585-2608: PDF
• (20) Stratocumulus liquid water content from dual-wavelength radar
  Hogan, R. J., N. Gaussiat and A. J. Illingworth. J. Atmos. Oceanic Technol., 22, 1207-1218: PDF
• (19) Retrieving stratocumulus drizzle parameters using Doppler radar and lidar
  O'Connor, E. J., R. J. Hogan and A. J. Illingworth. J. Appl. Meteorol., 44, 14-27. PDF
• (18) The retrieval of ice cloud properties from cloud radar and lidar synergy
  Tinel, C., J. Testud, J. Pelon, R. J. Hogan, A. Protat, J. Delanoe and D. Bouniol. J. Appl. Meteorol., 44, 860-875.

2004

• (17) Simultaneous radar and aircraft observations of mixed-phase cloud at the 100-m-scale
  Field, P. R., R. J. Hogan, P. R. A. Brown, A. J. Illingworth, T. W. Choularton, P. H. Kaye, E. Hirst and R. Greenaway. Quart. J. Roy. Meteorol. Soc., 130, 1877-1904: PDF
• (16) Estimating the global distribution of supercooled liquid water clouds using spaceborne lidar
  Hogan, R. J., M. D. Behera, E. J. O'Connor and A. J. Illingworth. Geophys Res. Lett., 32, L05106, doi:10.1029/2003GL018977: PDF
• (15) Using mesoscale model winds for correcting wind-drift errors in radar estimates of surface rainfall
  Mittermaier, M. P., R. J. Hogan and A. J. Illingworth. Q. J. R. Meteorol. Soc., 130, 2105-2123.
• (14) A technique for auto-calibration of cloud lidar
  O'Connor, E. J., A. J. Illingworth and R. J. Hogan. J. Atmos. Oceanic Tech., 21, 777-786. PDF

2003

• (13) Characteristics of mixed-phase clouds - 1. Lidar, radar and aircraft observations from CLARE'98
  Hogan, R. J., P. N. Francis, H. Flentje, A. J. Illingworth, M. Quante and J. Pelon. Quart. J. Roy. Meteorol. Soc., 129, 2089-2116. PDF
• (12) Characteristics of mixed-phase clouds - 2. A climatology from ground-based lidar
  Hogan, R. J., A. J. Illingworth, E. J. O'Connor and J. P. V. Poiares Baptista. Quart. J. Roy. Meteorol. Soc., 129, 2117-2134. PDF
• (11) Absolute calibration of 94/95-GHz radars using rain
  Hogan, R. J., D. Bouniol, D. N. Ladd, E. J. O'Connor and A. J. Illingworth. J. Atmos. Oceanic Tech., 20(4), 572-580. PDF
• (10) Parameterizing ice cloud inhomogeneity and the overlap of inhomogeneities using cloud radar data
  Hogan, R. J., and A. J. Illingworth. J. Atmos. Sci., 60(5), 756-767. PDF
• (9) Simulations of the glaciation of a frontal mixed-phase cloud with the Explicit Microphysics Model
  Phillips, V. T. J., T. W. Choularton, A. J. Illingworth, R. J. Hogan and P. R. Field. Quart. J. Roy. Meteorol. Soc., 129, 1351-1371.

2002

• (8) Properties of embedded convection in warm-frontal mixed-phase cloud from aircraft and polarimetric radar
  Hogan, R. J., P. R. Field, A. J. Illingworth, R. J. Cotton and T. W. Choularton. Quart. J. Roy. Meteorol. Soc., 128, 451-476. PDF

2001

• (7) Cloud effective particle size and water content profile retrievals using combined lidar and radar observations - 2. Comparison with IR radiometer and in situ measurements in ice clouds
  Donovan, D. P., A. C. A. P. van Lammeren, R. J. Hogan, H. W. J. Russchenberg, A. Apituley, P. N. Francis, J. Testud, J. Pelon, M. Quante and J. W. F. Goddard. J. Geophys. Res., 106(D21), 27449-27464.
• (6) Comparison of ECMWF winter-season cloud fraction with radar derived values
  Hogan, R. J., C. Jakob and A. J. Illingworth, J. Appl. Meteorol., 40(3), 513-525. PDF

2000

• (5) Combined radar and lidar cloud remote sensing: Comparison with IR radiometer and in-situ measurements
  Donovan, D. P., A. C. A. P. van Lammeren, R. Hogan, H. W. J. Russchenberg, A. Apituley, P. N. Francis, J. Testud, J. Pelon, M. Quante and J. Agnew, Phys. Chem. Earth, 25(10-12), 1049-1055.
• (4) Measuring crystal size in cirrus using 35- and 94-GHz radars
  Hogan, R. J., A. J. Illingworth and H. Sauvageot, J. Atmos. Oceanic Tech., 17(1), 27-37. PDF
• (3) Deriving cloud overlap statistics from radar
  Hogan, R. J., and A. J. Illingworth, Quart. J. Roy. Meteorol. Soc., 126(569A), 2903-2909. PDF
• (2) Weather observations from the Chilbolton Advanced Meteorological Radar
  Kilburn, C. A. D., D. Chapman, A. J. Illingworth and R. J. Hogan, Weather, 55(10), 352-355.

1999

• (1) The potential of spaceborne dual-wavelength radar to make global measurements of cirrus clouds
  Hogan, R. J., and A. J. Illingworth, J. Atmos. Oceanic Tech., 16(5), 518-531. PDF