Items where Author is "O'Connor, Dr Ewan"

Article

Nomokonova, T., Ebell, K., Lӧhnert, U., Ritter, C. and O'Connor, E. (2019) Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund. Atmospheric Chemistry and Physics, 19. pp. 4105-4126. ISSN 1680-7316 doi: 10.5194/acp-19-4105-2019

Moisseev, D., Lautaportti, S., Alku, L., Tabakova, K., O'Connor, E. J., Leskinen, M. and Kulmala, M. (2019) Inadvertent localized intensification of precipitation by aircraft. Journal of Geophysical Research: Atmospheres, 124 (4). pp. 2094-2104. ISSN 2169-8996 doi: 10.1029/2018jd029449

Tuononen, M., O'Connor, E. J. and Sinclair, V. A. (2019) Evaluating solar radiation forecast uncertainty. Atmospheric Chemistry and Physics, 19. pp. 1985-2000. doi: 10.5194/acp-19-1985-2019

Vakkari, V., Manninen, A. J., O'Connor, E., Schween, J. H. and van Zyl, P. G. (2019) A novel post-processing algorithm for Halo Doppler lidars. Atmospheric Measurement Techniques, 12 (2). pp. 839-852. ISSN 1867-8548 doi: 10.5194/amt-12-839-2019

Hooda, R. K., Kivekäs, N., O'Connor, E. J., Collaud Coen, M., Pietikäinen, J.-P., Vakkari, V., Backman, J., Henriksson, S. V., Asmi, E., Komppula, M., Korhonen, H., Hyvärinen, A.-P. and Lihavainen, H. (2018) Driving factors of aerosol properties over the foothills of central Himalayas based on 8.5 years continuous measurements. Journal of Geophysical Research: Atmospheres, 123 (23). pp. 13421-13442. ISSN 2169-8996 doi: 10.1029/2018jd029744

Manninen, A. J., Marke, T., Tuononen, M. and O'Connor, E. J. (2018) Atmospheric boundary layer classification with Doppler lidar. Journal of Geophysical Research: Atmospheres, 123 (15). pp. 8172-8189. ISSN 2169-8996 doi: 10.1029/2017jd028169

Nikandrova, A., Tabakova, K., Manninen, A., Väänänen, R., Petäjä, T., Kulmala, M., Kerminen, V.-M. and O'Connor, E. (2018) Combining airborne in situ and ground-based lidar measurements for attribution of aerosol layers. Atmospheric Chemistry and Physics, 18. pp. 10575-10591. ISSN 1680-7316 doi: 10.5194/acp-18-10575-2018

Tuononen, M., O'Connor, E. J., Sinclair, V. A. and Vakkari, V. (2017) Low-level jets over Utö, Finland, based on Doppler Lidar observations. Journal of Applied Meteorology and Climatology, 56 (9). pp. 2577-2594. ISSN 1558-8432 doi: 10.1175/jamc-d-16-0411.1

Suomi, I., Gryning, S.-E., O'Connor, E. J. and Vihma, T. (2017) Methodology for obtaining wind gusts using Doppler lidar. Quarterly Journal of the Royal Meteorological Society, 143 (706). pp. 2061-2072. ISSN 0035-9009 doi: 10.1002/qj.3059

Sporre, M. K., O'Connor, E. J., Håkansson, N., Thoss, A., Swietlicki, E. and Petäjä, T. (2016) Comparison of MODIS and VIIRS cloud properties with ARM ground-based observations over Finland. Atmospheric Measurement Techniques, 9 (7). pp. 3193-3203. ISSN 1867-8548 doi: 10.5194/amt-9-3193-2016

Mylläri, F., Asmi, E., Anttila, T., Saukko, E., Vakkari, V., Pirjola, L., Hillamo, R., Laurila, T., Häyrinen, A., Rautiainen, J., Lihavainen, H., O'Connor, E., Niemelä, V., Keskinen, J., Dal Maso, M. and Rönkkö, T. (2016) New particle formation in the fresh flue-gas plume from a coal-fired power plant: effect of flue-gas cleaning. Atmospheric Chemistry and Physics, 16 (11). pp. 7485-7496. ISSN 1680-7324 doi: 10.5194/acp-16-7485-2016

Manninen, A. J., O'Connor, E. J., Vakkari, V. and Petäjä, T. (2016) A generalised background correction algorithm for a Halo Doppler lidar and its application to data from Finland. Atmospheric Measurement Techniques, 9 (2). pp. 817-827. ISSN 1867-8548 doi: 10.5194/amt-9-817-2016

Kivekäs, N., Carpman, J., Roldin, P., Leppä, J., O'Connor, E. J., Kristensson, A. and Asmi, E. (2016) Coupling an aerosol box model with one-dimensional flow: a tool for understanding observations of new particle formation events. Tellus B, 68 (1). 29706. ISSN 1600-0889 doi: 10.3402/tellusb.v68.29706

Tonttila, J., O'Connor, E. J., Hellsten, A., Hirsikko, A., O'Dowd, C., Järvinen, H. and Räisänen, P. (2015) Turbulent structure and scaling of the inertial subrange in a stratocumulus-topped boundary layer observed by a Doppler lidar. Atmospheric Chemistry and Physics, 15. pp. 5873-5885. ISSN 1680-7316 doi: 10.5194/acp-15-5873-2015

Löhnert, U., Schween, J. H., Acquistapace, C., Ebell, K., Maahn, M., Barrera-Verdejo, M., Hirsikko, A., Bohn, B., Knaps, A., O'Connor, E.J., Simmer, C., Wahner, A. and Crewell, S. (2015) JOYCE: Jülich Observatory for cloud evolution. Bulletin of the American Meteorological Society, 96 (7). pp. 1157-1174. ISSN 1520-0477 doi: 10.1175/BAMS-D-14-00105.1

Vakkari, V., O'Connor, E. J., Nisantzi, A., Mamouri, R. E. and Hadjimitsis, D. G. (2015) Low-level mixing height detection in coastal locations with a scanning Doppler lidar. Atmospheric Measurement Techniques, 8 (4). pp. 1875-1885. ISSN 1867-8548 doi: 10.5194/amt-8-1875-2015

van Dinther, D., Wood, C. R., Hartogensis, O. K., Nordbo, A. and O'Connor, E. J. (2015) Observing crosswind over urban terrain using scintillometer and Doppler lidar. Atmospheric Measurement Techniques, 8 (4). pp. 1901-1911. ISSN 1867-8548 doi: 10.5194/amt-8-1901-2015

Hirsikko, A., O'Connor, E., Komppula, M., Korhonen, K., Pfuller, A., Giannakaki, E., Wood, C. R., Bauer-Pfundstein, M., Poikonen, A., Karppinen, T., Lonka, H., Kurri, M., Heinonen, J., Moisseev, D., Asmi, E., Aaltonen, V., Nordbo, A., Rodriguez, E., Lihavainen, H., Laaksonen, A., Lehtinen, K. E. J., Laurila, T., Petäjä, T., Kulmala, M. and Viisanen, Y. (2014) Observing wind, aerosol particles, clouds and precipitation: Finland's new ground-based remote-sensing network. Atmospheric Measurement Techniques, 7. pp. 1351-1375. ISSN 1867-8548 doi: 10.5194/amt-7-1351-2014

Mann, J. A.L., Chiu, J. C., Hogan, R. J. ORCID: https://orcid.org/0000-0002-3180-5157, O'Connor, E. J., l'Ecuyer, T. S., Stein, T. H. M. ORCID: https://orcid.org/0000-0002-9215-5397 and Jefferson, A. (2014) Aerosol impacts on drizzle properties in warm clouds from ARM Mobile Facility maritime and continental deployments. Journal of Geophysical Research: Atmospheres, 119 (7). pp. 4136-4148. ISSN 2169-8996 doi: 10.1002/2013JD021339

Wood, C. R., Järvi, L., Kouznetsov, R. D., Nordbo, A., Joffre, S., Drebs, A., Vihma, T., Hirsikko, A., Suomi, I., Fortelius, C., O'Connor, E., Moisseev, D., Haapanala, S., Moilanen, J., Kangas, M., Karppinen, A., Vesala, T. and Kukkonen, J. (2013) An overview on the urban boundary-layer atmosphere network in Helsinki. Bulletin of the American Meteorological Society, 94 (11). pp. 1675-1690. ISSN 1520-0477 doi: 10.1175/BAMS-D-12-00146.1

Bouniol, D., Couvreux, F., Kamsu-Tamo, P.-H., Leplay, M., Guichard, F., Favot, F. and O'Connor, E. J. (2012) Diurnal and seasonal cycles of cloud occurrences, types and radiative impact over West Africa. Journal of Applied Meteorology and Climatology, 51 (3). pp. 534-553. ISSN 1558-8432 doi: 10.1175/JAMC-D-11-051.1

Morcrette, C. J., O'Connor, E. and Petch, J. C. (2012) Evaluation of two cloud parametrization schemes using ARM and Cloudnet observations. Quarterly Journal of the Royal Meteorological Society, 138 (665). pp. 964-979. ISSN 1477-870X doi: 10.1002/qj.969

Tonttila, J., O'Connor, E. J., Niemelä, S., Räisänen, P. and Järvinen, H. (2011) Cloud-base vertical velocity statistics: a comparison between an atmospheric mesoscale model and remote sensing observations. Atmospheric Chemistry and Physics, 11 (17). pp. 9207-9218. ISSN 1680-7316 doi: 10.5194/acp-11-9207-2011

Protat, A., Bouniol, D., O'Connor, E. J., Klein Baltink, H., Verlinde, H. and Widener, K. (2011) CloudSat as a Global Radar Calibrator. Journal of Atmospheric and Oceanic Technology, 28 (3). pp. 445-452. ISSN 0739-0572 doi: 10.1175/2010JTECHA1443.1

Ebell, K., Crewell, S., Löhnert, U., Turner, D. D. and O'Connor, E. J. (2011) Cloud statistics and cloud radiative effect for a low-mountain site. Quarterly Journal of the Royal Meteorological Society, 137 (S1). pp. 306-324. ISSN 1477-870X doi: 10.1002/qj.748

Protat, A., Delanoë, J., May, P. T., Haynes, J., Jakob, C., O'Connor, E. J., Pope, M. and Wheeler, M. C. (2011) The variability of tropical ice cloud properties as a function of the large-scale context from ground-based radar-lidar observations over Darwin, Australia. Atmospheric Chemistry and Physics, 11 (16). pp. 8363-8384. ISSN 1680-7316 doi: 10.5194/acp-11-8363-2011

Protat, A., Delanoë, J., O'Connor, E. J. and L'Ecuyer, T. S. (2010) The evaluation of CloudSat and CALIPSO ice microphysical products using ground-based cloud radar and lidar observations. Journal of Atmospheric and Oceanic Technology, 27 (5). pp. 793-810. ISSN 1520-0426 doi: 10.1175/2009JTECHA1397.1

Westbrook, C. D. ORCID: https://orcid.org/0000-0002-2889-8815, Illingworth, A. J. ORCID: https://orcid.org/0000-0002-5774-8410, O'Connor, E. J. and Hogan, R. J. ORCID: https://orcid.org/0000-0002-3180-5157 (2010) Doppler lidar measurements of oriented planar ice crystals falling from supercooled and glaciated layer clouds. Quarterly Journal of the Royal Meteorological Society, 136 (646). pp. 260-276. ISSN 1477-870X doi: 10.1002/qj.528

Bouniol, D., Protat, A., Delanoe, J., Pelon, J., Piriou, J.-M., Bouyssel, F., Tompkins, A. M., Wilson, D. R., Morille, Y., Haeffelin, M., O'Connor, E. J., Hogan, R. J. ORCID: https://orcid.org/0000-0002-3180-5157, Illingworth, A. J. ORCID: https://orcid.org/0000-0002-5774-8410, Donovan, D. P. and Baltink, H.-K. (2010) Using continuous ground-based radar and lidar measurements for evaluating the representation of clouds in four operational models. Journal of Applied Meteorology and Climatology, 49 (9). pp. 1971-1991. ISSN 1558-8424 doi: 10.1175/2010JAMC2333.1

Protat, A., Delanoë, J., Plana-Fattori, A., May, P. T. and O'Connor, E. J. (2010) The statistical properties of tropical ice clouds generated by the West-African and Australian monsoons from ground-based radar-lidar observations. Quarterly Journal of the Royal Meteorological Society, 136 (S1). pp. 345-363. ISSN 1477-870X doi: 10.1002/qj.490

Protat, A., Bouniol, D., Delanoe, J., May, P. T., Plana-Fattori, A., Hasson, A., O'Connor, E. J., Goersdorf, U. and Heymsfield, A. J. (2009) Assessment of CloudSat reflectivity measurements and ice cloud properties using ground-based and airborne cloud radar observations. Journal of Atmospheric and Oceanic Technology, 26. pp. 1717-1741. ISSN 1520-0426 doi: 10.1175/2009JTECHA1246.1

Hogan, R. J. ORCID: https://orcid.org/0000-0002-3180-5157, O'Connor, E. J. and Illingworth, A. J. ORCID: https://orcid.org/0000-0002-5774-8410 (2009) Verification of cloud-fraction forecasts. Quarterly Journal of the Royal Meteorological Society, 135 (643). pp. 1494-1511. ISSN 1477-870X doi: 10.1002/qj.481

Hogan, R. J. ORCID: https://orcid.org/0000-0002-3180-5157, Grant, A. L. M., Illingworth, A. J. ORCID: https://orcid.org/0000-0002-5774-8410, Pearson, G. N. and O'Connor, E. J. (2009) Vertical velocity variance and skewness in clear and cloud-topped boundary layers as revealed by Doppler lidar. Quarterly Journal of the Royal Meteorological Society, 135 (640). pp. 635-643. ISSN 1477-870X doi: 10.1002/qj.413

Wood, C. R., O'Connor, E. J., Hurley, R. A., Reynolds, D. R. and Illingworth, A. J. (2009) Cloud-radar observations of insects in the UK convective boundary layer. Meteorological Applications, 16 (4). pp. 491-500. ISSN 1469-8080 doi: 10.1002/met.146

Crewell, S., Mech, M., Reinhardt, T., Selbach, S., Betz, H.-D., Brocard, E., Dick, G., O'Connor, E. J., Fischer, J., Hanisch, T., Hauf, T., Huenerbein, A., Delobbe, L., Mathes, A., Peters, G., Wernli, H., Wiegner, M. and Wulfmeyer, V. (2008) The general observation period 2007 within the priority program on quantitative precipitation forecasting: concept and first results. Meteorologische Zeitschrift, 17 (6). pp. 849-866. ISSN 0941-2948 doi: 10.1127/0941-2948/2008/0336

Loehnert, U., Crewell, S., Krasnov, K., O'Connor, E. J. and Russchenberg, H. (2008) Advances in continuously profiling the thermodynamic state of the boundary layer: integration of measurements and methods. Journal of Atmospheric and Oceanic Technology, 25 (8). pp. 1251-1266. ISSN 1520-0426 doi: 10.1175/2007JTECHA961.1

Illingworth, A. J., Hogan, R. J. ORCID: https://orcid.org/0000-0002-3180-5157, O'Connor, E. J., Bouniol, D., Brooks, M. E., Delano, J., Donovan, D. P., Eastment, J. D., Gaussiat, N., Goddard, J. W. F., Haeffelin, M., Klein Baltink, H., Krasnov, O. A., Pelon, J., Piriou, J. -M., Protat, A., Russchenberg, H. W. J., Seifert, A., Tompkins, A. M., van Zadelhoff, G. -J., Vinit, F., Willen, U., Wilson, D. R. and Wrench, C. L. (2007) Continuous Evaluation of Cloud Profiles in Seven Operational Models Using Ground-Based Observations. Bulletin of the American Meteorological Society, 88 (6). pp. 883-898. ISSN 1520-0477 doi: 10.1175/BAMS-88-6-883

O'Connor, E. J., Hogan, R. J. ORCID: https://orcid.org/0000-0002-3180-5157 and Illingworth, A. J. (2005) Retrieving stratocumulus drizzle parameters using Doppler radar and lidar. Journal Of Applied Meteorology, 44 (1). pp. 14-27.

Hogan, R. J. ORCID: https://orcid.org/0000-0002-3180-5157, Behera, M. D., O'Connor, E. J. and Illingworth, A. J. (2004) Estimate of the global distribution of stratiform supercooled liquid water clouds using the LITE lidar. Geophysical Research Letters, 31 (5). L05106. doi: 10.1029/2003GL018977.

O'Connor, E. J., Illingworth, A. J. and Hogan, R. J. ORCID: https://orcid.org/0000-0002-3180-5157 (2004) A technique for autocalibration of cloud lidar. Journal Of Atmospheric And Oceanic Technology, 21 (5). pp. 777-786.

Hogan, R.J. ORCID: https://orcid.org/0000-0002-3180-5157, Bouniol, D., Ladd, D.N., O'Connor, E.J. and Illingworth, A.J. (2003) Absolute calibration of 94/95-GHz radars using rain. Journal Of Atmospheric And Oceanic Technology, 20. pp. 572-580.

Hogan, R.J. ORCID: https://orcid.org/0000-0002-3180-5157, Illingworth, A.J., O'Connor, E.J. and Baptista, J. (2003) Characteristics of mixed-phase clouds. II: A climatology from ground-based lidar. Quarterly Journal of the Royal Meteorological Society, 129. pp. 2117-2134. ISSN 1477-870X

Stephens, G.L., Vane, D.G., Boain, R.J., Mace, G.G., Sassen, K., Wang, Z., Illingworth, A. ORCID: https://orcid.org/0000-0002-5774-8410, O'Connor, E., Rossow, W.B., Durden, S.L., Miller, S.D., Austin, R.T., Benedetti, A., Mitrescu, C. and the CloudSat Science Team (2002) The CloudSat mission and the A-train: a new dimension of space-based observations of clouds and precipitation. Bulletin of the American Meteorological Society, 83 (12). pp. 1771-1790. ISSN 1520-0477 doi: 10.1175/BAMS-83-12-1771

Book or Report Section

Gryning, S.-E., Mikkelsen, T., Baehr, C., Dabas, A., Gómez, P., O'Connor, E., Rottner, L., Sjöholm, M., Suomi, I. and Vasiljević, N. (2017) Measurement methodologies for wind energy based on ground-level remote sensing. In: Kariniotakis, G. (ed.) Renewable Energy Forecasting: From Models to Applications. Elsevier, pp. 29-56. ISBN 9780081005040 doi: 10.1016/B978-0-08-100504-0.00002-0

Conference or Workshop Item

O'Connor, E. J., Hogan, R. J. ORCID: https://orcid.org/0000-0002-3180-5157, Illingworth, A. and Brenguier, J. -L. (2004) Characteristics of drizzle and non-drizzling stratocumulus as revealed by vertically pointing cloud radar and lidar. In: 14th International Conference on Clouds and Precipitation, Bologna.