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20030418: land/sea boundaries

>From:  Robert Mullenax <address@hidden>
>Organization:  Universial Weather
>Keywords:  200304181341.h3IDfZ7U029290 McIDAS topo image combinations

Travis, et. al.,

>The only problem with that is that the topo file has a very coarse
>resolution along the coastline,
>If you zoom in to any great extent, the coastline looks very blocky.

Robert is correct, but you can get high resolution topography datasets
which can be turned into images and used in the exact same way that you
would use the topo images in XRD (and are also in the Unidata McIDAS
distribution).  I'm sure that Robert or I could provide illustrative
examples if you are interested.

As to Dave's comment on Rick Khors being an expert in this area: he _IS_
the master! :-)

Cheers,

Tom

>-----Original Message-----
>From: Dave Santek [mailto:address@hidden]
>Sent: Friday, April 18, 2003 8:28 AM
>To: address@hidden
>Subject: Re: land/sea boundaries
>
>Travis,
>
>You'll have to do some image combinations with the topography area file that
>is included with -XRD. Rick Kohrs is our resident expert on this, but he's
>on vacation this week.
>
>dave
>
>Travis Martin wrote:
>
>Hello,
>I'm trying to color the boundaries of land and sea in some maps I'm
>creating.  Using the IMGDISP command I create a composite radar image of
>say....the bay area and then apply a map to this image using MAP X 7.  I
>would like to have the ocean blue and the land brown with the radar image
>overlaid.    Since the current color of land and sea are both black, I'm not
>sure how I can change color ranges to accomplish this.  Any ideas?  I think
>I've seen this done on a few sites here and there, but don't have the code.
>Thanks for any help you can give!
>
>Travis Martin
>Software Engineer
>Weathernews Americas Inc.
>
>149 New Montgomery St.
>San Francisco, CA  94105
>415-848-5261 (Office)
>
>415-310-5719 (Mobile)
>415-848-5201 (Fax)

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