Issue 7, September 2003

The final program of the

7th Conference on Electromagnetic and Light Scattering by Nonspherical Particles,

Bremen, Germany, September 8 - 12, 2003 can be found on the web site

http://www.iwt-bremen.de/vt/laser/conference2003/conference2003-announce.htm

You may still register for the conference by sending an email or a fax.

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New papers on light scattering:

Pan Y.L., Aptowicz K.B., Chang R.K., Hart M., and Eversole J. Characterizing and monitoring respiratory aerosols by light scattering, OPT LETT 28 (8): 589-591 APR 15 2003

Abstract.

The elastic-scattering intensity pattern from a single particle as a function of spherical coordinate angles q and f provides detailed information on the pattern's morphology. By use of an ellipsoidal reflector and a CCD camera, a single-laser-shot intensity pattern from a large angular range ( q from 90 to 168 and f from 0 to 360) was detected from a single aerosol (e.g., a Bacillus subtilis spore, a 1 m m -diameter polystyrene latex sphere, or a cluster of either of these) flowing through the reflector's focal volume at 5ms. Noticeable differences in the large-angle-range two-dimensional angular optical scattering (LATAOS) suggest that the LATAOS pattern could be useful in differentiating and classifying life-threatening aerosols from normal background aerosols

New book:

Kokhanovsky, A. A., Polarization Optics of Random Media, Berlin: Springer-Praxis, 2003.

http://www.springer.de/search97cgi/s97_cgi

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New software

Fine InfraRed Explorer for Atmospheric Radiation MeasurementS (FIRE-ARMS)

If you are prominent scientist or young student from World Atmospheric Science Community currently interested in atmospheric remote sensing, meteorology, modeling of the Earth radiation budget, simulations of atmospheric cooling rate and radiative forcing, etc, the FIRE-ARMS will help you to do your job.

Please visit http://remotesensing.ru/soft.html

FIRE-ARMS for Windows is a software with user-friendly interface for predicting atmospheric transmittance, radiance and brightness temperature at high (line-by-line) spectral resolution in the range of 0-15000 1/cm. In addition, registered version of FIRE-ARMS provides the inverse calculations of atmospheric vertical profiles from measured spectra of high spectral resolution. The version of FIRE-ARMS is very useful for high level processing of current AIRS sensor data or future TES (2004) and IASI (2005) data.

The basic atmospheric calculations in FIRE-ARMS utilize adaptive step size for radiative transfer integration. This leads to the independence of tolerance level in forward spectra simulations on absorption intensity in different ranges of spectra. FIRE-ARMS performs accurate and speedy calculations in infrared and microwave regions of

spectra (0-15000 1/cm). The model accommodates both standardized and defined by the user atmospheric profiles. Several aerosol models are also may be accommodated. Spherical refractive geometry calculations are performed for simulations of spectra for satellite and balloon limb geometry of sounding. FIRE-ARMS performs line-by-line calculations using spectroscopic parameters obtained from the HITRAN database. The spectra computed with high spectral resolution can be convoluted with the given instrumental line shape function.

The main features of FIRE-ARMS for Windows are:

- graphical presentation of all spectra, vertical atmospheric profiles and weighting functions; easy generation of new

- user's atmospheric model with any altitude mesh;

- easy choice of isotopomers set for spectral calculations;

- easy choice of one of WMO standard aerosol models or generation of user's aerosol model;

- easy construction of target function for mean least squires method for profile retrieval.

Registration of FIRE-ARMS is now available for $268

(Compare with the price of ONTAR's PcLnWin in http://www.ontar.com/Software/product_PcLnWin.htm )

Next version of FIRE-ARMS is near to be released. Conventional optimal estimation method for vertical profile retrieval will be added into next version of FIRE-ARMS. Welcome to the site http://remotesensing.ru/soft.html