========================================================== DESCRIPTION: FIND THE number of ELEMENT at the longitudinal position xs ARGUMENTS: xs = longitudinal position. NN = sequential number of the element which xs belong. ========================================================== SUBROUTINE FINDELE(XS,NN) COMMONS: common-initi.f SUBROUTINES USED: messages_n micromap-index Mon Jul 17 08:57:31 CEST 2017