**Author details**

Sergio H. Franchito\*, Manoel A. Gan and Julio P. Reyes Fernandez National Institute for Space Research, INPE, Sao Jose dos Campos, SP, Brazil

\*Address all correspondence to: sfranchito@hotmail.com

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
