Search Results - "Stein, Thorwald"

Mixing‐length controls on high‐resolution simulations of convective storms by Hanley, Kirsty E., Plant, Robert S., Stein, Thorwald H. M., Hogan, Robin J., Nicol, John C., Lean, Humphrey W., Halliwell, Carol, Clark, Peter A.

“…We perform simulations of several convective events over the southern UK with the Met Office Unified Model (UM) at horizontal grid lengths ranging from 1.5 km…”
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Transient Aggregation of Convection: Observed Behavior and Underlying Processes by Masunaga, Hirohiko, Holloway, Christopher E., Kanamori, Hironari, Bony, Sandrine, Stein, Thorwald H. M.

“…Convective self-aggregation is among the most striking features emerging from radiative–convective equilibrium simulations, but its relevance to convective…”
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Rapid ice aggregation process revealed through triple-wavelength Doppler spectrum radar analysis by Barrett, Andrew I, Westbrook, Christopher D, Nicol, John C, Stein, Thorwald H. M

“…We have identified a region of an ice cloud where a sharp transition of dual-wavelength ratio occurs at a fixed height for longer than 20 min. In this paper we…”
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Convective systems and rainfall in East Africa by Hill, Peter G., Stein, Thorwald H. M., Cafaro, Carlo

“…East Africa is particularly vulnerable to weather extremes, with severe weather linked to thousands of deaths per year. Improved forecasts of convective events…”
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A multisatellite climatology of clouds, radiation, and precipitation in southern West Africa and comparison to climate models by Hill, Peter G., Allan, Richard P., Chiu, J. Christine, Stein, Thorwald H. M.

“…Southern West Africa (SWA) has a large population that relies on highly variable monsoon rainfall, yet climate models show little consensus over projected…”
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A Comparison among Four Different Retrieval Methods for Ice-Cloud Properties Using Data from CloudSat, CALIPSO, and MODIS by STEIN, Thorwald H. M, DELANOE, Julien, HOGAN, Robin J

“…The A-Train constellation of satellites provides a new capability to measure vertical cloud profiles that leads to more detailed information on ice-cloud…”
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Stable and unstable fall motions of plate-like ice crystal analogues by Stout, Jennifer R, Westbrook, Christopher D, Stein, Thorwald H. M, McCorquodale, Mark W

“…The orientation of ice crystals affects their microphysical behaviour, growth, and precipitation. Orientation also affects interaction with electromagnetic…”
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Convective initiation and storm life cycles in convection‐permitting simulations of the Met Office Unified Model over South Africa by Keat, William J., Stein, Thorwald H. M., Phaduli, Elelwani, Landman, Stephanie, Becker, Erik, Bopape, Mary‐Jane M., Hanley, Kirsty E., Lean, Humphrey W., Webster, Stuart

“…Convective initiation is a challenge for convection‐permitting models due to its sensitivity to sub‐km processes. We evaluate the representation of convective…”
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Statistics of convective cloud turbulence from a comprehensive turbulence retrieval method for radar observations by Feist, Matthew M., Westbrook, Chris D., Clark, Peter A., Stein, Thorwald H.M., Lean, Humphrey W., Stirling, Alison J.

“…Turbulent mixing processes are important in determining the evolution of convective clouds, and the production of convective precipitation. However, the exact…”
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Modes of coastal precipitation over southwest India and their relationship with intraseasonal variability by Hunt, Kieran M. R., Turner, Andrew G., Stein, Thorwald H. M., Fletcher, Jennifer K., Schiemann, Reinhard K. H.

“…The west coast of India, dominated by the Western Ghats mountain range, is among the rainiest places in the Tropics. The interaction between the land–sea…”
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A new, long-term daily satellite-based rainfall dataset for operational monitoring in Africa by Maidment, Ross I, Grimes, David, Black, Emily, Tarnavsky, Elena, Young, Matthew, Greatrex, Helen, Allan, Richard P, Stein, Thorwald, Nkonde, Edson, Senkunda, Samuel, Alcántara, Edgar Misael Uribe

“…Rainfall information is essential for many applications in developing countries, and yet, continually updated information at fine temporal and spatial scales…”
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Use of ZDR columns for early detection of severe convection within the operational radar network of the United Kingdom by Lo, Chun Hay Brian, Stein, Thorwald H. M., Scovell, Robert W., Westbrook, Chris D., Darlington, Timothy, Lean, Humphrey W.

“…Differential reflectivity (ZDR$$ {Z}_{\mathrm{DR}} $$) columns were observed using a Met Office three‐dimensional radar composite. An algorithm for automatic…”
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The potential use of operational radar network data to evaluate the representation of convective storms in NWP models by Stein, Thorwald H. M., Scovell, Robert W., Hanley, Kirsty E., Lean, Humphrey W., Marsden, Nicola H.

“…Operational forecasting centres increasingly rely on convection‐permitting NWP simulations to assist in their forecasting of convective events. The evaluation…”
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Aerosol impacts on drizzle properties in warm clouds from ARM Mobile Facility maritime and continental deployments by Mann, Julian A. L., Christine Chiu, J., Hogan, Robin J., O'Connor, Ewan J., L'Ecuyer, Tristan S., Stein, Thorwald H. M., Jefferson, Anne

“…We have extensively evaluated the response of cloud base drizzle rate (Rcb; mm d−1) in warm clouds to liquid water path (LWP; g m−2) and to cloud condensation…”
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How skilful are Nowcasting Satellite Applications Facility products for tropical Africa? by Hill, Peter G., Stein, Thorwald H.M., Roberts, Alexander J., Fletcher, Jennifer K., Marsham, John H., Groves, James

“…Satellite nowcasting potentially provides a vital opportunity to mitigate against the risks of severe weather in tropical Africa, where population growth and…”
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Validation of GPM IMERG Extreme Precipitation in the Maritime Continent by Station and Radar Data by Silva, Nicolas A., Webber, Benjamin G. M., Matthews, Adrian J., Feist, Matthew M., Stein, Thorwald H. M., Holloway, Christopher E., Abdullah, Muhammad F. A. B.

“…The Maritime Continent (MC) is a region subject to high impact weather (HIW) events, which are still poorly predicted by numerical weather prediction (NWP)…”
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THE DYMECS PROJECT: A Statistical Approach for the Evaluation of Convective Storms in High-Resolution NWP Models by 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.

“…A new frontier in weather forecasting is emerging by operational forecast models now being run at convection-permitting resolutions at many national weather…”
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Impact of the Madden–Julian oscillation and equatorial waves on tracked mesoscale convective systems over southeast Asia by Crook, Julia, Morris, Fran, Fitzpatrick, Rory Gordon John, Peatman, Simon C., Schwendike, Juliane, Stein, Thorwald H., Birch, Cathryn E., Hardy, Sam, Yang, Gui‐Ying

“…Southeast Asia is a region dominated by high‐impact weather, but numerical weather prediction here is a challenge owing to the complex orography and…”
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Cloud‐Radiation Interactions and Their Contributions to Convective Self‐Aggregation by Pope, Kieran N., Holloway, Christopher E., Jones, Todd R., Stein, Thorwald H. M.

“…This study investigates the direct radiative‐convective processes that drive and maintain aggregation within convection‐permitting elongated channel (and…”
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The representation of the West African monsoon vertical cloud structure in the Met Office Unified Model: an evaluation with CloudSat by 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.

“…Weather and climate model simulations of the West African Monsoon (WAM) have generally poor representation of the rainfall distribution and monsoon circulation…”
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