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Re: Irregularly Lat Lon Grid: Displaying Land Types [message #40969 is a reply to message #40869]

Mon, 20 September 2004 11:45

alonge
Messages: 4
Registered: September 2004

Junior Member

> Thundurstruck wrote:
>> Hello all,
>>
>> I have vegetation type data (Integer 1-13) on a 12km grid and
>> would like to display it on a map. I don't want to contour the data
>> but rather just display the grid boxes colored according to the
>> vegetation class. I can't use map_image (not a regular lat/lon grid).
>> Any ideas or suggestions will be greatly appreciated.

> Certainly, but first you're going to have to explain to us what sort of
> grid you *do* have. What shape are the boxes? What is the geometry of
> the grid?

The grid is output from NCEP's operational ETA forecast model on the
Arakawa (rotated lat-lon) E-grid. The grid is staggered row by row,
rotating wind and mass points, giving the the data a diamond type grid
box.

Here is a short example

H V H V H V
V H V H V H
H V H V H V

The grid is 606 in E-W or x direction and 1067 in the N-S or y
direction.

The SW corner is located at 3.441S , 148.799 W
and the NW corner is located at 50.000N , 111.000 W

Thanks,
Chuck

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[Message index]

		Re: Irregularly Lat Lon Grid: Displaying Land Types By: Mark Hadfield on Mon, 13 September 2004 17:18
		Re: Irregularly Lat Lon Grid: Displaying Land Types By: alonge on Mon, 20 September 2004 11:45

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