[ferret_users] How to add symbol on a map when lat and lon are known

To: ferret <ferret_users@xxxxxxxx>

Subject: [ferret_users] How to add symbol on a map when lat and lon are known

From: Swetha sivakumar <swetha.s2060@xxxxxxxxx>

Date: Thu, 8 Apr 2021 11:07:33 +0530

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Hello

set region /x=77:79.4/y=9.4:11.4

shade/lev=(-inf)(-1,1,0.1)(inf)/nolab/nokey sst
plot/overlay/symbol=20 lon,lat

I am trying to plot sst and overlay it with station locations which are given in separate var lon and lat.

I get the following error

**ERROR: illegal limits: "LON[D=location]" does not exist at X=77:79.4
Axis extremes are X=0.5:66.5
plot/overlay/symbol=20/color=blue lon[d=5],lat[d=5]
Command file, command group, or REPEAT execution aborted

Values of lon and lat do exist in the defined set region.

TIA

Best,

swetha