Initial Commit

.svn/pristine/04/0475db0c95d9ab049e25ffb75f67cceef8206561.svn-base

@@ -0,0 +1,38 @@
+subroutine grid2deg(grid0,dlong,dlat)
+
+! Converts Maidenhead grid locator to degrees of West longitude
+! and North latitude.
+
+  character*6 grid0,grid
+  character*1 g1,g2,g3,g4,g5,g6
+
+  grid=grid0
+  i=ichar(grid(5:5))
+  if(grid(5:5).eq.' ' .or. i.le.64 .or. i.ge.128) grid(5:6)='mm'
+
+  if(grid(1:1).ge.'a' .and. grid(1:1).le.'z') grid(1:1)=          &
+        char(ichar(grid(1:1))+ichar('A')-ichar('a'))
+  if(grid(2:2).ge.'a' .and. grid(2:2).le.'z') grid(2:2)=          &
+        char(ichar(grid(2:2))+ichar('A')-ichar('a'))
+  if(grid(5:5).ge.'A' .and. grid(5:5).le.'Z') grid(5:5)=          &
+        char(ichar(grid(5:5))-ichar('A')+ichar('a'))
+  if(grid(6:6).ge.'A' .and. grid(6:6).le.'Z') grid(6:6)=          &
+        char(ichar(grid(6:6))-ichar('A')+ichar('a'))
+
+  g1=grid(1:1)
+  g2=grid(2:2)
+  g3=grid(3:3)
+  g4=grid(4:4)
+  g5=grid(5:5)
+  g6=grid(6:6)
+
+  nlong = 180 - 20*(ichar(g1)-ichar('A'))
+  n20d = 2*(ichar(g3)-ichar('0'))
+  xminlong = 5*(ichar(g5)-ichar('a')+0.5)
+  dlong = nlong - n20d - xminlong/60.0
+  nlat = -90+10*(ichar(g2)-ichar('A')) + ichar(g4)-ichar('0')
+  xminlat = 2.5*(ichar(g6)-ichar('a')+0.5)
+  dlat = nlat + xminlat/60.0
+
+  return
+end subroutine grid2deg