ACP Atmospheric Chemistry and Physics ACP 1680-7324 Copernicus GmbH Göttingen, Germany 10.5194/acp-8-4903-2008 Effects of dust storms on microwave radiation based on satellite observation and model simulation over the Taklamakan desert Ge J. 1 Huang J. 1 Weng F. 2 Sun W. 3 College of Atmospheric Sciences, Lanzhou University, Lanzhou, China NOAA/NESDIS, Camp Springs, Maryland, USA Dept. of Atmospheric Sciences, Hampton University, Hampton, Virginia, USA 27 08 2008 8 16 4903 4909 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. This article is available from http://www.atmos-chem-phys.net/8/4903/2008/acp-8-4903-2008.html The full text article is available as a PDF file from http://www.atmos-chem-phys.net/8/4903/2008/acp-8-4903-2008.pdf

Effects of dust particles on microwave radiation over the Taklamakan desert are studied with use of measurements from the Advanced Microwave Scanning Radiometer (AMSR-E) on the EOS Aqua satellite and a microwave radiation transfer model. Eight observed cases show that the signal from atmospheric dust can be separated from the surface radiation by the fact that the dust particles produce stronger scattering at high frequencies and depolarize the background desert signature. This result of satellite data is consistent with the model simulation.

 References Ackerman, S. A.: Remote sensing aerosols using satellite infrared observations, J. Geophy. Res., 102(D14), 17 069–17 080, 1997. Albrecht, B. A.: Aerosols, cloud microphysics and fractional cloudiness, Science, 245, 1227–1230, 1989. Basist, A., Garrett, D., Ferraro, R., Grody, N. C., and Forsyth, D.: A comparison between snow cover products derived from visible and microwave satellite observations, J. Appl. Mereor., 35, 163–177, 1996. Bréon, F.-M., Tanré, D., and Generoso, S.: Aerosol effect on cloud droplet size monitored from satellite, Science, 295, 834–838, 2002. Cheng, T., Lu, D., Chen, H., et al.: Physical characteristics of dust aerosol over Hunshan Dake sandland in Northern China, Atmos. Environ., 39, 1237–1243, 2004. Christopher, M. U. Neale, Mcfraland, M. J., and Chang, K.: Land-Surface-Type classification using microwave brightness temperatures from the special sensor microwave/imager, IEEE T. Geosci. Remote Sens., 28(5), 829–838, September 1990. Delene, D., Rose, W., and Grody, N.: Remote sensing of volcanic ash clouds using the special sensor microwave imager data, J. Geophys. Res., 101, 11 579–11 588, 1996. DeMott, P. J., Sassen, K., Poellot, M., Baumgardner, D., Rogers, D. C., Brooks, S., Prenni, A. J., and Kreidenweis, S. M.: African dust aerosols as atmospheric ice nuclei, Geophys. Res. Lett., 30, 14, 1732, doi:10.1029/2003GL017410, 2003. Dubovik, O., Holben, B. N., Lapyonok, T., Sinyuk, A., Mishchenko, M. I., Yang, P., et al.: Non-spherical aerosol retrieval method employing light scattering by spheroids, Geophys. Res. Lett., 29, 10, 1415, 2002. Dubovik, O., Alexander, S., Tatyana, L., et al.: The application of spheroid models to account for aerosol particle nonsphericity in remote sensing of desert dust, J. Geophys. Res.,111, D11208, doi:10.1029/2005JD006619, 2006. El-Askary, H., Sarkar, S., Kafatos, M., and El-Ghazawi, T. A.: Multisensor approach to dust storm monitoring over the nile delta, IEEE T. Geosci. Remote Sens., 41, 2386–2391, 2003. El-Askary, H., Gautam, R., Singh, R. P., and Kafatos, M.: Dust storms detection over the Indo-Gangetic basin using multi sensor data, Adv. Space Res., 37, 728–733, 2006. Ferraro, R. R. and Grody, N. C.: Effects of surface conditions on rain identification using the DMSP-SSM/I, Remote Sens. Rev., 11, 195–209, 1994. Huang, J., Ge, J., and Weng, F.: Detection of Asia dust storm using satellite microwave, visible and infrared measurements, Remote Sens. Environ., 110, 186–191, 2007. Huang, J., Lin, B., Minnis, P., Wang, T., Wang, X., Hu, Y., Yi, Y., and Ayers, K.: Satellite-based assessment of possible dust aerosols semi-direct effect on cloud water path over East Asia, Geophys. Res. Lett., 33, L19802, doi:2006GL026561, 2006. Huang, J., Minnis, P., Lin, B., Wang, T., Yi, Y., Hu, Y., Sun-Mack, S., and Ayers, K.: Possible influences of Asian dust aerosols on cloud properties and radiative forcing observed from MODIS and CERES, Geophys. Res. Lett., 33, L06824, doi:10.1029/2005GL024724, 2006. Huang, J., Minnis, P., Yi, Y., et al.: Summer dust aerosols detected from CALIPSO over the Tibetan Plateau, Geophys. Res. Lett., 34, L18805, doi:10.1029/2007GL029938, 2007. Hong, G., Yang, P., Weng, F., and Liu, Q.: Microwave scattering properties of sand particles: Application to the simulation of microwave radiances over sandstorms, J. Quant. Spectrosc. Ra., 109, 684–702, doi:10.1016/j.jqsrt.2007.08.018, 2007. KAMRA, A. K.: Measurements of the electrical properties of dust storms, JGR, 77, 5856–5869, 1972. Karbou, F., Eymard, L., Prigent, C., and Pardo, J. R.: Microwave land surface emissivity assessment using AMSU-B and AMSU-A measurements, IEEE, 4, 2302–2304, 2003 Lau, K.-M., Kim, K.-M.: Observational relationships between aerosol and Asian monsoon rainfall and circulation, Geophys. Res. Lett., 33, L21810, doi:10.1029/2006GL027546, 2006. Legrand, M., Plana-Fattori, A., and N'Doume, C.: Satellite detection of dust using the IR imagery of Meteosat, 1, Infrared difference dust index, J. Geophys. Res., 106, 18 251–18 274, 2001. Li, Z., Chen, H., and Cribb, M.: Preface to special section on East Asian Studies of Tropospheric Aerosols: An International Regional Experiment (EAST-AIRE), Geophys. Res. Lett., 112, D22S00, doi:10.1029/2007JD008853, 2007. Prata, A. J.: Observations of volcanic ash clouds in the 10–12 micrometer window using AVHRR/2 data, Int. J. Remote Sens., 10, 751–761, 1989. Prata, A. J. and Grant, I. F.: Retrieval of microphysical and morphological properties of volcanic ash plumes from satellite data: Application to Mt. Ruapehu, New Zealand, Q. J. Roy. Meteor. Soc., 127, 2153–2179, 2001. Rosenfeld, D., Rudich, Y., and Lahav, R.: Desert dust suppressing precipitation: a possible desertification feedback loop, P. Natl. A. Sci., 98(11), 5975–5980, 2001. Slingo, A., Ackerman, T. P., Allan, R. P., et al.: Observations of the impact of a major Saharan dust storm on the atmospheric radiation balance, Geophys. Res. Lett., 33, L24817, doi:10.1029/2006GL027869, 2006. Twomey, S., Piepgrass, M., and Wolfe, T. L.: An assessment of the impact of pollution on global cloud albedo, Tellus, 36B, 356–366, 1984. Wentz, F. J.: Algorithm theoretical basis document: AMSR ocean algorithm, Remote Sens. Sys., Tech. Rep., 28, 110398, Tech. Report no. 110398, 28pp., Santa Rosa, CA, USA, 1998. Yang, P., Feng, Q., Hong, G., Kattawar, G. W., Wiscombe, W. J., Mishchenko, M. I., et al.: Modeling of the scattering and radiative properties of nonspherical dust particles, J. Aerosol. Sci., 38, 995–1014, 2007. Yang, D., Shang, K., and Wang, S.: Dust Storm (in Chinese), Meteorology Press, Beijing, China, 2003. Weng, F.: A multi-layer discrete-ordinate method for vector radiative transfer in a vertically-inhomogeneous, emitting and scattering atmosphere–I. Theory, J. Quant. Spectrosc. Radiat. Transfer, 47, 19–33, 1992. Weng, F.: A multi-layer discrete-ordinate method for vector radiative transfer in a vertically-inhomogeneous, emitting and scattering atmosphere–II, Appl. J. Quant. Spectrosc. Radiat. Transfer, 47, 35–42, 1992.