References

ACP

Atmospheric Chemistry and Physics

ACP

1680-7324

Copernicus GmbH

Göttingen, Germany

10.5194/acp-9-8453-2009

Extreme Saharan dust event over the southern Iberian Peninsula in september 2007: active and passive remote sensing from surface and satellite

Guerrero-Rascado

J. L.

¹ ² Olmo

F. J.

¹ ² Avilés-Rodríguez

¹ ² Navas-Guzmán

¹ ² Pérez-Ramírez

¹ ² Lyamani

¹ ² Alados Arboledas

¹ ²

Departamento de Física Aplicada, Facultad de Ciencias, Universidad de Granada, Fuentenueva s/n, 18071, Granada, Spain

Centro Andaluz de Medio Ambiente (CEAMA), Junta de Andalucía-Universidad de Granada, Av. del Mediterráneo s/n, 18071, Granada, Spain

06 11 2009

9 21 8453 8469

This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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This study investigates aerosol optical properties during the extreme Saharan dust event detected from 3 to 7 September 2007 over Granada, southern Iberian Peninsula, with both active and passive remote sensing instrumentation from surface and satellite. The intensity of the event was visualized on the aerosol optical depth series obtained by the sun-photometer Cimel CE 318-4 operated at Granada in the framework of AERONET from August 2004 until December 2008 (level 2 data). A combination of large aerosol optical depth (0.86–1.50) at 500 nm, and reduced Angström exponent (0.1–0.25) in the range 440–870 nm, was detected on 6 September during daytime. This Saharan dust event also affected other Iberian Peninsula stations included in AERONET (El Arenosillo and Évora stations), and it was monitored by MODIS instrument on board Aqua satellite. Vertically resolved measurements were performed by a ground-based Raman Lidar and by CALIPSO satellite. During the most intense stage, on 6 September, maximum aerosol backscatter values were a factor of 8 higher than other maxima during this Saharan dust event. Values up to 1.5×10−2 km−1 sr−1 at 355 and 532 nm were detected in the layer with the greatest aerosol load between 3–4 km a.s.l., although aerosol particles were also detected up to 5.5 km a.s.l. In this stage of the event, dust particles at these altitudes showed a backscatter-related Angström exponent between –0.44 and 0.53 for the two spectral intervals considered. The results from different measurements (active/passive and ground-based/satellite) reveal the importance of performing multi-instrumental measurements to properly characterize the contribution of different aerosol types from different sources during extreme events. The atmospheric stabilization effect of the aerosol particles has been characterized by computing the solar heating rates using SBDART code.

References 1

Acker, J. G., and Leptoukh, G.: Online analysis enhances use of NASA earth science data, Eos Trans. AGU, 88, 14–17, 2007.

Alados-Arboledas, L., Alcántara, A., Olmo, F. J., Martínez-Lozano, J. A., Estellés, V., Cachorro, V., Silva, A. M., Horvath, H., Gangl, M., Díaz, A., Pujadas, M., Lorente, J., Labajo, A., Sorribas, M., and Pavese, G.: Aerosol columnar properties retrieved from CIMEL radiometers during VELETA 2002, Atmos. Environ., 42, 2654–2667, 2008.

Amiridis, V., Balis, D. S., Kazidzis, S., Bais, A., and Giannakaki, E.: Four-year aerosol observation with a Raman lidar at Thessaloniki, Greece, in the framework of the European Aerosol Research Lidar Network (EARLINET), J. Geophys. Res., 110, D21203, doi:10.1029/2005JD006190, 2005.

Ansmann, A., Wandinger, U., Riebesell, M., Weitkamp, C., and Michaelis, W.: Independent measurement of extinction and backscatter profiles in cirrus clouds by using a combined Raman elastic-backscatter lidar, Appl. Optics, 31, 7113–7131, 1992.

Ansmann A, Bösenberg, J., Chaikovsky, A., Comerón, A., Eckhardt, S., Eixmann, R., Freudenthaler, V., Ginoux, P., Komguem, L., Linné, H., López Márquez, M. A., Matthias, V., Mattis, I., Mitev, V., Müller, D., Music, S., Nickovic, S., Pelon, J., Sauvage, L., Sobolewsky, P., Srivastava, M. K., Stohl, A., Torres, O., Vaughan, G., Wandinger, U., and Wiegner, M.: Long-range transport of Saharan dust to northern Europe: The 11-16 October 2001 outbreak observed with EARLINET, J. Geophys. Res., 108(D24), 4783, doi:10.1029/2003JD003757, 2003.

Balis, D. S., Zerefos, C. S. ,Kourtidis, K., Bais, A. F., Hofzumahaus, A., Kraus, A., Schmitt, R., Blumthaler, M., and Gobbi, G. P.: Measurements and modeling of the photolysis rates during the photochemical activity and ultraviolet radiation (PAUR) II campaign, J. Geophys. Res., 107(D18), 8138, doi:10.1029/2000JD000136, 2002.

Balis, D., Amiridis, V., Nickovic, S., Papayannis, A., and Zerefos, C.: Optical properties of Saharan dust layers as detected by a Raman lidar at Thessaloniki, Greece, Geophys. Res. Lett., 31, L13104, doi:10.1029/2004GL019881, 2004.

Bösenberg, J., Ansmann, A., Baldasano, J. M., Balis, D., Böckmann, C., Calpini, B., Chaikovsky, A., Flamant, P., Hagard, A., Mitev, V., Papayannis, A., Pelon, J., Resendes, D., Schneider, J., Spinelli, N., Trickl, T., Vaughan, G., Visconti, G., and Wiegner, M.: EARLINET: a European aerosol research lidar network, laser remote sensing of the atmosphere, in: Selected Papers of the 20th International Laser Radar Conference, 2001, edited by: Dabas, A., Loth, C., and Pelon, J., Edition Ecole Polytechnique, Palaiseau, France, 155–158, 2001.

Cachorro, V. E., Toledano, C., Prats, N., Sorribas, M., Mogo, S., Berjón, A., Torres, B., Rodrigo, R., de la Rosa, J., and De Frutos, A. M.: The strongest desert dust intrusion mixed with smoke over the Iberian Peninsula registered with sun photometry, J. Geophys. Res., 113, D14S04, doi:10.1029/2007JD009582, 2008.

Chu, D. A., Kaufman, Y. J., Ichoku, C., Remer, L. A., Tanré, D., and Holben, B.: Validation of MODIS aerosol optical depth retrieval over land, Geophys. Res. Lett., 29(12), 8007, doi:10.1029/2001GL013205, 2002.

De Tomasi, F., Blanco, A., and Perrone, M. R.: Raman lidar monitoring of extinction and backscattering of African dust layers and dust characterization, Appl. Optics, 42, 1699–1709, 2003.

De Tomasi, F. and Perrone, M. R.: Lidar measurements of tropospheric water vapor and aerosol profiles over southeastern Italy, J. Geophys. Res., 108(D9), 4286, doi:10.1029/2002JD002781, 2003.

Díaz, A. M., García, O. E., Díaz, J. P., Expósito, F. J., Utrillas, M. P., Martínez-Lozano, J. A., Alados-Arboledas, L., Olmo, F. J., Lorente, J., Cachorro, V., Horvath, H., Labajo, A., Sorribas, M., Vilaplana, J. M., Silva, A. M., Elias, T., Pujadas, M., Rodrigues, J. A., and González, J. A.: Aerosol radiative forcing efficiency in the UV region over southeastern Mediterranean: VELETA2002 campaign, J. Geophys. Res., 112, D06213, doi:10.1029/2006JD007348, 2007.

Draxler, R. R. and Rolph, G. D.: HYSPLIT (HYbrid single- particle Lagrangian integrated trajectory) Model access via NOAA ARL READY Website (http://www.arl.noaa.gov/ready/ hysplit4.html), NOAA Air Resources Lab., Silver Spring, MD, USA, 2003.

Elias, T., Silva, A. M., Belo, N., Pereira, S., Formenti, P., Helas, G., and Wagner, F.: Aerosol extinction in a remote continental region of the Iberian Peninsula during summer, J. Geophys. Res., 111, D14204, doi:10.1029/2005JD006610, 2006.

Fernald, F. G., Herman, B. M., and Reagan, J. A.: Determination of aerosol height distribution by lidar, J. Appl. Meteorol., 11, 482–489, 1972.

Fernald, F. G.: Analysis of atmospheric lidar observations: some comments, Appl. Optics, 23, 652–653, 1984.

Forster, P., Ramaswamy, V., Artaxo, P., Berntsen, T., Betts, R., Fahey, D. W., Haywood, J., Lean, J., Lowe, D. C., Myhre, G., Nganga, J., Prinn, R., Raga, G., Schulz, M., and Van Dorland, R.: Changes in atmospheric constituents and in radiative forcing, in: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, edited by: Solomon, S., Qin, D., Manning, M., Chen, Z., Marquis, M., Averyt, K. B., Tignor, M., and Miller, H. L., Cambridge University Press, Cambridge, UK and New York, NY, USA, 2007.

Gobbi, G. P., Barnaba, F., Giorgi, R., and Santacasa, A.: Altitude-resolved properties of a Saharan dust event over the Mediterranean, Atmos. Environ., 34, 5119–5127, 2000.

Guerrero-Rascado, J. L., Ruiz, B., Alados-Arboledas, L.: Multi-spectral lidar characterization of the vertical structure of Saharan dust aerosol over southern Spain, Atmos. Environ., 42, 2668–2681, 2008.

Hamonou, E., Chazette, P., Balis, D., Dulac, F., Scheider, X., Galani, E., Ancellet, G., and Papayannis, A.: Characterization of the vertical structure of Saharan dust export to the Mediterranean basin, J. Geophys. Res., 104, 22270–22275, 1999.

Holben, B. N., Eck, T. F., Slutsker, I., Tanre, D., Buis, J. P., Setzer, A., Vermote, E., Reagan, J. A., Kaufman, Y. J., Nakajima, T., Lavenu, F., Jankowiak, I., and Smirnov, A.: Aeronet – a federated instrument network and data archieve for aerosol characterization, Rem. Sens. Environ., 66, 1–19, 1998.

Ichoku,~C., Remer,~ L. A. , Kaufman,~ Y. J. Levy, R.,~ Chu,~ D. A. , Tanré, D., and Holben, B. N.: MODIS observation of aerosols and estimation of aerosol radiative forcing over southern Africa during SAFARI 2000, J. Geophys. Res, 108(D13), 8499, doi:10.1029/2002JD002366, 2003.

Kaskaoutis, D. G., Kambezidis, H. D., Nastos, P. T., and Kosmopoulos, P. G.: Study on an intense dust storm over Greece, Atmos. Environ., 42, 6884–6896, 2008.

Klett, J. D.: Stable analytic inversion solution for processing lidar returns, Appl. Optics, 20, 211–220, 1981.

Klett, J. D.: Lidar inversion with variable backscatter/extinction ratios, Appl. Optics, 24, 1638–1643, 1985.

Kremling, K. and Streau, P.: Saharan dust influenced trace element fluxes in deep North Atlantic subtropical waters, Deep-Sea Res., Pt. I, 40, 1155–1168, 1993.

Landulfo, E., Papayannis, A., Artaxo, P., Castanho, A. D. A., de Freitas, A. Z., Ouza, R. F., Vieira Junior, N. D., Jorge, M. P. M. P., Sánchez-Ccoyllo, O. R., and Moreira, D. S.: Synergetic measurements of aerosols over Sao Paulo, Brazil using LIDAR, sunphotometer and satellite data during the dry season, Atmos. Chem. Phys., 3, 1523–1539, 2003.

Levy, R. C., Remer, L. A., Martins, J. V., Kaufman, Y. J., Plana-Fattori, A., Redemann, J., and Wenny, B.: Evaluation of the MODIS aerosol retrievals over ocean and land during CLAMS, J. Atmos. Sci., 62(4), 974–992, 2005.

Liou, K. N.: An Introduction to Atmospheric Radiation, 2nd edn., International Geophysics Series, Academic Press, Amsterdam, The Netherlands, 84, 107–110, ISBN: 0-12-451451-0, 2002.

Liu, Z., Omar, A., Vaughan, M., Hair, J., Kittaka, C., Hu, Y., Powell, K., Trepte, C., Winker, D., Hostetler, C., Ferrare, R., and Pierce, R.: CALIPSO lidar observations of the optical properties of Saharan dust: A case study of long-range transport, J. Geophys. Res., 113, D07207, doi:10.1029/2007JD008878, 2008.

López, J. M., Callén, M. S., Murillo, R., García, T., Navarro, M. V., de la Cruz, M. T., and Mastral, A. M.: Levels of selected metals in ambient air PM$_10$ in an urban site of Zaragoza (Spain), Env. Res., 99, 58–67, 2005.

Lyamani, H., Olmo, F. J., and Alados-Arboledas, L.: Long-term changes in aerosol radiative properties at Armilla (Spain), Atmos. Environ., 38, 5935–5943, 2004.

Lyamani, H., Olmo, F. J., and Alados-Arboledas, L.: Saharan dust outbreak over southeastern Spain as detected by sun photometer, Atmos. Environ., 39, 7276–7284, 2005.

Lyamani, H., Olmo, F. J., Alcántara, A., and Alados-Arboledas, L.: Atmospheric aerosols during the 2003 heat wave in southeastern Spain I: Spectral optical depth, Atmos. Environ., 40, 6453–6464, 2006a.

Lyamani, H., Olmo, F. J., Alcántara, A., and Alados-Arboledas, L.: Atmospheric aerosols during the 2003 heat wave in southeastern Spain II: Microphysical columnar properties and radiative forcing, Atmos. Environ., 40, 6465–6476, 2006b.

Lyamani, H., Olmo, F. J., and Alados-Arboledas, L.: Light scattering and absorption properties of aerosol particles in the urban environment of Granada, Spain, Atmos. Environ.,~42, 2630–2642, 2008.

Marenco, F., Santacesaria, V., Bais, A., Balis, D., di Sarra, D., Papayannis, A., and Zerefos, C. S.: Optical properties of tropospheric aerosols determined by lidar and spectrophotometric measurements (PAUR campaign), Appl. Optics, 36, 6785–6886, 1997.

Mona, L., Amodeo, A., Pandolfi, M., and Pappalardo, G.: Saharan dust intrusions in the Mediterranean area: Three years of Raman lidar measurements, J. Geophys. Res., 111, D16203, doi:10.1029/2005JD006569, 2006.

Müller, D., Ansmann, A., Mattis, I., Tesche, M., Wandinger, U., Althausen, D., and Pisani, G.: Aerosol-type-dependent lidar ratios observed with Raman lidar, J. Geophys. Res., 112, D16202, doi:10.1029/2006JD008292, 2007.

Müller, D., Heinold, B., Tesche, M., Tegen, I., Althausen, D., Amiridis, V., Amodeo, A., Ansmann, A., Alados-Arboledas, L., Balis, D., Comerón, A., D'Amico, G., Gerasopoulos, E., Guerrero-Rascado, J. L., Freudenthaler, V., Giannakaki, E., Heese, B., Iarlori, M., Mamouri, R. E., Mona, L., Papayannis, A., Pappalardo, G., Perrone, M. R., Pisani, G., Rizi, V., Sicard, M., Spinelli, N., and Tafuro, A.: EARLINET Observations of the 14–22-May long-range dust transport event during SAMUM 2006: Validation of results from dust transport modelling, Tellus, 61B, 325–339, 2009.

Olmo, F. J., Lyamani, H., Tovar, J., and Alados-Arboledas, L.: Volcanic aerosol effects on radiometric series registered at Spain, J. Aer. Sci.,~30, S891–S892, 1999.

O'Neill, N. T., Dubovik, O., and Eck, T. F.: Modified Ångström exponent for the characterization of submicrometer aerosols, Appl. Optics, 40, 2368–2375, 2001.

O'Neill, N. T., Eck, T. F., Smirnov, A., Holben, B. N., and Thulasiraman, S.: Spectral discrimination of coarse and fine mode optical depth, J. Geophys. Res., 108(D17), 4559, doi:10.1029/2002JD002975, 2003.

Pappalardo, G., Amodeo, A., Amoruso, S., Mona, L., Pandolfi, M., and Cuomo, V.: One year of tropospheric lidar measurements of aerosol extinction and backscatter, Ann. Geophysics, 46, 401–413, 2003.

Papayannis, A., Balis, D., Amiridis, V., Chourdakis, G., Tsaknakis, G., Zerefos, C., Castanho, A. D. A., Nickovic, S., Kazadzis, S., and Grabowski, J.: Measurements of Saharan dust aerosols over the Eastern Mediterranean using elastic-Raman lidar, spectrophotometric and satellite observations in the frame of the EARLINET project, Atmos. Chem. Phys., 5, 2065–2079, 2005.

Papayannis, A., Zhang, H. Q., Amiridis, V., Ju, H. B., Chourdakis, G., Georgoussis, G., Pérez, C., Chen, H. B., Goloub, P., Mamouri, R. E., Kazadzis, S., Paronis, D., Tsaknakis, G., and Baldasano, J. M.: Extraordinary dust event over Beijing, China, during April 2006: Lidar, Sun photometric, satellite observations and model validation, J. Geophys. Res., 34, L07806, doi:10.1029/2006GL029125, 2007.

Papayannis, A., Amiridis, V., Mona, L., Tsaknakis, G., Balis, D., Bösenberg, J., Chaikovski, A., De Tomasi, F., Grigorov, I., Mattis, I., Mitev, V., Müller, D., Nickovic, S., Pérez, C., Pietruczuk, A., Pisani, G., Ravetta, F., Rizi, V., Sicard, M., Trickl, T., Wiegner, M., Gerding, M., Mamouri, R. E., D'Amico, and G. Pappalardo, G.: Systematic lidar observations of Saharan dust over Europe in the frame of EARLINET (2000–2002), J. Geophys. Res., 113, D10204, doi:10.1029/2007JD009028, 2008.

Pappalardo, G., Amodeo, A., Pandolfi, M., Wandinger, U., Ansmann, A., Bösenberg, J., Matthias, V., Amiridis, V., De Tomasi, F., Frioud, M., Iarlori, M., Komguem, L., Papayannis, A., Rocadenbosch, F., and Wang, X.: Aerosol lidar intercomparison in the framework of EARLINET project. 3. Raman lidar algorithm for aerosol extinction, backscatter, and lidar ratio, Appl. Optics, 43, 5370–5385, 2004.

Pérez, C., Nickovic, S., Sicard, M., Rocadenbosh, F., and Cachorro, V. E.: A long Saharan dust event over the western Mediterranean: Lidar, Sun photometer observations, and regional dust modelling, J. Geophys. Res., 111, D15214, doi:10.1029/2005JD006579, 2006.

Pérez-Ramírez, D., Aceituno, J., Ruiz, B., Olmo, F. J., and Alados-Arboledas, L.: Development and calibration of a star photometer to measure the aerosol optical depth: Smoke observations at a high mountain site, Atmos. Environ., 42, 2733–2738, 2008a.

Pérez-Ramírez, D., Ruiz, B., Aceituno, J., Olmo, F. J., and Alados-Arboledas, L.: Application of Sun/star photometry to derive the aerosol optical depth, I. J. Remote Sens., 29, 5113–5132, 2008b.

Pilewskie, P.: Aerosols heat up, Nature, 448, 541–542, 2007.

Ramanathan, V., Ramana, M. V., Roberts, G., Kim, D., Corrigan, C., Chung, C., and Winker, D.: Warming trends in Asia amplified by brown cloud solar absorption, Nature, 448, 575–578, 2007.

Ramanathan,~V., Crutzen, P. J., Lelieveld, J., Mitra, A. P., Althausen, D., Anderson, J., Andreae, M. O., Cantrell, W., Cass, G. R., Chung, C. E., Clarke, A. D., Coakley, J. A., Collins, W. D., Conant, W. C., Dulac, F., Heintzenberg, J., Heymsfield, A. J., Holben, B., Howell, S., Hudson, J., Jayaraman, A., Kiehl, J. T., Krishnamurti, T. N., Lubin, D., McFarquhar, G., Novakov, T., Ogren, J. A., Podgorny, I. A., Prather, K., Priestley, K., Prospero, J. M., Quinn, P. K., Rajeev, K., Rasch, P., Rupert, S., Sadourny, R., Satheesh, S. K., Shaw, G. E., Sheridan, P., and Valero, F. P. J.: Indian ocean experiment: an integrated analysis of the climate forcing and effects of the great Indo-Asian haze, J. Geophys. Res., 106(D22), 28371–28398, doi:10.1029/2001JD900133, 2001.

Reichholf, J. H.: Is Saharan dust a major source of nutrients for the Amazonian forest, Suud. Neotrop. Fauna Environ., 21, 251–255, 1986.

Remer, L. A., Kaufman, Y. J., Tanré, D., Mattoo,~ S., Chu, D. A., Martins, J. V., Li, R. R.,~Ichoku, C., Levy, R. C., Kleidman, R. G., Eck, T. F., Vermote, E., and Holben,~B. N.: The MODIS aerosol algorithm, products, and validation, J. Atmos. Sci., 62(4), 947–973, 2005.

Ricchiazzi, P., Yang, S. R., Gautier, C., and Sowle, D.: SBDART: a research and teaching software tool for plane parallell radiative transfer in the Earth's atmosphere, B. Am. Meteor. Soc., 79(10), 2101–2114, 1998.

Sasano, Y. and Nakane, H.: Significance of the extinction/backscatter ratio and the boundary value term in the solution for the two-component lidar equation, Appl. Optics, 23, 11–13, 1984.

Sasano, Y., Browell, E. V., and Ismail, S.: Error caused by using a constant extinction/backscattering Ratio in Lidar solution, Appl. Optics, 24, 3929–3932, 1985.

Welton, E. J., Voss, K. J., Quinn, P. K., Flatau, P. J., Markowicz, K., Campbell, J. R., Spinhirne, J. D., Gordon, H. R., and Johnson, J. E.: Measurements of aerosol vertical profiles and optical properties during INDOEX 1999 using micropulse lidars, J. Geophys. Res., 107(D19), 8019, 18-1–18-20, 2002.

Zerefos, C. S., Kourtidis, K. A., Melas, D., Balis, D., Zanis, P., Katsaros, L., Mantis, H. T., Repapis, C., Isaksen, I., Sundet, J., Herman, J., Bhartia, P. K., and Calpini, B.: Photochemical activity and solar ultraviolet radiation modulation factors (PAUR): An overview of the project, J. Geophys. Res., 107(D18), 8134, doi:10.1029/2000JD000134, 2002.