w3/-150,-6,-90,6/  !window west,south,east,north
      w34/-170,-6,-120,6/
      w4/160,-6,210,6/ ! w4/-150,-6,160,6/
      ast/-30,-18,10,-6/  !atlantic south
      ae /-30,-6 ,10,6 /  !atlantic equat
      ant/-60, 6 ,-10,18/ !atlantic north
      car/-100, 10 ,-60,26/ !caribi
      ind/70,2 ,90,2/ !india
      art/0,60 ,358,88/ !artic
      arn/0,70 ,358,88/
      arts/0,60 ,358,70/