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[ferret_users] Mask out lakes

Title: Mask out lakes

Good day,

  I am using netcdf files and the following to set a land mask :

go land_detail black overlay 8 9  blue lightblue
go fland 5 grey

This works fairly well, however I have lakes showing in the greyed out areas.  I would also like to mask these out.  Could you advise me on how to go about this in ferret?

Sample code:

set data our_data.20090514_R20090514.nc
shade/nolabels/k=1/levels=(-inf)(-1.0,1.0,.05)(inf) votemper,nav_lon,nav_lat
ppl xlab "SST difference (oCel)"
ppl Title "Forecast 20090514 (day 2)"
ppl shade
go land_detail black overlay 8 9 blue lightblue
go fland 5 grey


Knowledge is power and knowledge shared is power multiplied
Debbie Power
Programmer/Analyst :8
Physical Oceanography - DFO
Biological and Physical Oceanography Section
Section d'Oceanographie Biologique et Physique
Fisheries and Oceans Canada
Peches et Oceans Canada
NAFC, East White Hills Rd.
NAFC, Rue White Hills Est

P.O. Box 5667 St. John's, NL A1C 5X1
mailto:powerda@xxxxxxxxxxxxxxxxxxxxxx "mailto:powerda@xxxxxxxxxxxxx"
PH: 772-8137
Fax: 772-8138

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