ARTS Microwave Single Scattering Properties Database (Oriented Particles)

The database contains microwave and submillimeter wave single scattering data of azimuthally randomly oriented frozen hydrometeors. Main applications lie in polarized active/passive microwave and submillimeter wave remote sensing. This database is an independent add-on to the ARTS Microwave Single Scattering Properties Database.

A description of the simulation methods and database is available in the following article. Please cite it if you use the database for a publication. Brath, M., Ekelund, R., Eriksson, P., Lemke, O., and Buehler, S. A.: Microwave and submillimeter wave scattering of oriented ice particles, Atmos. Meas. Tech. Discuss., https://doi.org/10.5194/amt-2019-382, in review, 2019.

The dataset contains one aggregate habit and one pristine ice crystal habit. Furthermore, 35 frequencies from 1 to 886 GHz, and 3 temperatures, 190, 230 and  270 K, are included. The data were calculated using the discrete dipole approximation method (DDA) in combination with a self developed orientation averaging approach. Interfaces for easy user access is available under a separate upload, due to different licensing, under the title ARTS Microwave Single Scattering Properties Database Interfaces, in which only the Python3 interface can be used for browsing and importing of the single scattering data of azimuthally randomly oriented.

Unpacking

The data files for the oriented particles follow the same directory structure as the ARTS Microwave Single Scattering Properties Database. Each tar file contains an SSD directory and the subdirectories for a specific particle orientation. Furthermore, it contains as a quick overview a report of the scattering properties for total random orientation.

If the totally randomly oriented particle database is already present, these files should be unpacked in the same location that contains the SSD folder.

In Unix, all files can be unpacked with:

for ssdfile in SSD-AziRnd-ice*.tar; do
   tar -xvf $ssdfile
done