Current development of Internet access, together with available zero-cost Open Source applications (like, for
instance, PHP, Python, etc.) can be integrated in order to minimize the constrains induced by the geographical
separation of international centers, which collaborate in a given project. The advantage of such approach lies
in the sharing of common analysis methods, without particular constrains to specific directions of analysis. The
discussion presented in this paper describes the Time Variable Acoustic Propagation Model (TV-APM) web
interface, which was created as a collaborative service of acoustic modeling for the participants of the PHITOM
and UAN projects. This paper describes the general architecture of the interface, its current shortcomings and
advantages, and presents a set of modeling results for short range acoustic propagation, which accounts for
source–array and sea surface motion
