Search Results - "Heinold, B"

Comparing two years of Saharan dust source activation obtained by regional modelling and satellite observations by Tegen, I, Schepanski, K, Heinold, B

“…A regional-scale dust model is used to simulate Saharan dust emissions and atmospheric distributions in the years 2007 and 2008. The model results are compared…”
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A new Saharan dust source activation frequency map derived from MSG-SEVIRI IR-channels by Schepanski, K., Tegen, I., Laurent, B., Heinold, B., Macke, A.

“…We present a new dust source area map for the Sahara and Sahel region, derived from the spatiotemporal variability of composite images of Meteosat Second…”
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How important are atmospheric depressions and mobile cyclones for emitting mineral dust aerosol in North Africa? by Fiedler, S, Schepanski, K, Knippertz, P, Heinold, B, Tegen, I

“…This study presents the first quantitative estimate of the mineral dust emission associated with atmospheric depressions and mobile cyclones in North Africa…”
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Meteorological processes forcing Saharan dust emission inferred from MSG-SEVIRI observations of subdaily dust source activation and numerical models by Schepanski, K., Tegen, I., Todd, M. C., Heinold, B., Bönisch, G., Laurent, B., Macke, A.

“…Fifteen‐minute Meteosat Second Generation (MSG) Spinning Enhanced Visible and Infrared Imager (SEVIRI) infrared dust index images are used to identify dust…”
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Ash and fine-mode particle mass profiles from EARLINET-AERONET observations over central Europe after the eruptions of the Eyjafjallajökull volcano in 2010 by Ansmann, A., Tesche, M., Seifert, P., Groß, S., Freudenthaler, V., Apituley, A., Wilson, K. M., Serikov, I., Linné, H., Heinold, B., Hiebsch, A., Schnell, F., Schmidt, J., Mattis, I., Wandinger, U., Wiegner, M.

“…A combined lidar‐photometer method that permits the retrieval of vertical profiles of ash and non‐ash (fine‐mode) particle mass concentrations is presented. By…”
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THE SAHARAN AEROSOL LONG-RANGE TRANSPORT AND AEROSOL–CLOUD-INTERACTION EXPERIMENT: Overview and Selected Highlights by Weinzierl, Bernadett, Ansmann, A., Prospero, J. M., Althausen, D., Benker, N., Chouza, F., Dollner, M., Farrell, D., Fomba, W. K., Freudenthaler, V., Gasteiger, J., Groß, S., Haarig, M., Heinold, B., Kandler, K., Kristensen, T. B., Mayol-Bracero, O. L., Müller, T., Reitebuch, O., Sauer, D., Schäfler, A., Schepanski, K., Spanu, A., Tegen, I., Toledano, C., Walser, A.

“…North Africa is the world’s largest source of dust, a large part of which is transported across the Atlantic to the Caribbean and beyond where it can impact…”
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Climatology of nocturnal low-level jets over North Africa and implications for modeling mineral dust emission by Fiedler, S., Schepanski, K., Heinold, B., Knippertz, P., Tegen, I.

“…This study presents the first climatology for the dust emission amount associated with Nocturnal Low‐Level Jets (NLLJs) in North Africa. These wind speed…”
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Dust radiative feedback on Saharan boundary layer dynamics and dust mobilization by Heinold, B., Tegen, I., Schepanski, K., Hellmuth, O.

“…Mineral dust radiative effects and feedbacks upon Saharan boundary layer meteorology are estimated by means of regional dust simulations for a one‐week period…”
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Tracking the Saharan Air Layer with shipborne lidar across the tropical Atlantic by Kanitz, T., Engelmann, R., Heinold, B., Baars, H., Skupin, A., Ansmann, A.

“…Saharan dust was observed with shipborne lidar from 60° to 20°W along 14.5°N during a 1‐month transatlantic cruise of the research vessel Meteor. About 4500 km…”
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Quantifying uncertainty in estimates of mineral dust flux: An intercomparison of model performance over the Bodélé Depression, northern Chad by Todd, M. C., Bou Karam, D., Cavazos, C., Bouet, C., Heinold, B., Baldasano, J. M., Cautenet, G., Koren, I., Perez, C., Solmon, F., Tegen, I., Tulet, P., Washington, R., Zakey, A.

“…Mineral dust aerosols play an important role in the climate system. Coupled climate‐aerosol models are an important tool with which to quantify dust fluxes and…”
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The role of deep convection and nocturnal low-level jets for dust emission in summertime West Africa: Estimates from convection-permitting simulations by Heinold, B., Knippertz, P., Marsham, J. H., Fiedler, S., Dixon, N. S., Schepanski, K., Laurent, B., Tegen, I.

“…Convective cold pools and the breakdown of nocturnal low‐level jets (NLLJs) are key meteorological drivers of dust emission over summertime West Africa, the…”
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Direct and semi-direct radiative effects of absorbing aerosols in Europe: Results from a regional model by Meier, J., Tegen, I., Heinold, B., Wolke, R.

“…The influence of absorbing aerosol on atmospheric conditions in Europe is simulated for a summer and a winter period with a regional model. Depending on the…”
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The Global Atmosphere‐aerosol Model ICON‐A‐HAM2.3–Initial Model Evaluation and Effects of Radiation Balance Tuning on Aerosol Optical Thickness by Salzmann, M., Ferrachat, S., Tully, C., Münch, S., Watson‐Parris, D., Neubauer, D., Siegenthaler‐Le Drian, C., Rast, S., Heinold, B., Crueger, T., Brokopf, R., Mülmenstädt, J., Quaas, J., Wan, H., Zhang, K., Lohmann, U., Stier, P., Tegen, I.

“…The Hamburg Aerosol Module version 2.3 (HAM2.3) from the ECHAM6.3‐HAM2.3 global atmosphere‐aerosol model is coupled to the recently developed icosahedral…”
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On the direct and semidirect effects of Saharan dust over Europe: A modeling study by Helmert, J., Heinold, B., Tegen, I., Hellmuth, O., Wendisch, M.

“…On the basis of a new regional dust model system, the sensitivity of radiative forcing to dust aerosol properties and the impact on atmospheric dynamics were…”
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Simulations of convectively‐driven density currents in the Atlas region using a regional model: Impacts on dust emission and sensitivity to horizontal resolution and convection schemes by Reinfried, F., Tegen, I., Heinold, B., Hellmuth, O., Schepanski, K., Cubasch, U., Huebener, H., Knippertz, P.

“…During the SAMUM field campaign in southern Morocco in May and June 2006 density currents generated by evaporative cooling after convective precipitation were…”
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Regional modeling of Saharan dust events using LM-MUSCAT: Model description and case studies by Heinold, B., Helmert, J., Hellmuth, O., Wolke, R., Ansmann, A., Marticorena, B., Laurent, B., Tegen, I.

“…A new regional model system was developed for simulation of emission, transport, deposition, and radiative effects of Saharan desert aerosol within the…”
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Mass deposition fluxes of Saharan mineral dust to the tropical northeast Atlantic Ocean: an intercomparison of methods by Niedermeier, N, Held, A, Müller, T, Heinold, B, Schepanski, K, Tegen, I, Kandler, K, Ebert, M, Weinbruch, S, Read, K, Lee, J, Fomba, K. W, Müller, K, Herrmann, H, Wiedensohler, A

“…Mass deposition fluxes of mineral dust to the tropical northeast Atlantic Ocean were determined within this study. In the framework of SOPRAN (Surface Ocean…”
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A model study of Saharan dust emissions and distributions during the SAMUM-1 campaign by Laurent, B., Tegen, I., Heinold, B., Schepanski, K., Weinzierl, B., Esselborn, M.

“…Simulations of Saharan dust emission, transport, and deposition are performed using new developments of the regional model COSMO‐MUSCAT for the Saharan Mineral…”
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Ice formation in ash-influenced clouds after the eruption of the Eyjafjallajökull volcano in April 2010 by Seifert, P., Ansmann, A., Groß, S., Freudenthaler, V., Heinold, B., Hiebsch, A., Mattis, I., Schmidt, J., Schnell, F., Tesche, M., Wandinger, U., Wiegner, M.

“…The influence of volcanic ash on heterogeneous ice nucleation in tropospheric clouds is investigated on the basis of 90 observed cloud cases. The clouds were…”
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Modelling soil dust aerosol in the Bodélé depression during the BoDEx campaign by Tegen, I., Heinold, B., Todd, M., Helmert, J., Washington, R., Dubovik, O.

“…We present regional model simulations of the dust emission events during the Bodélé Dust Experiment (BoDEx) that was carried out in February and March 2005 in…”
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