-------- Original Message --------
Subject:        Re: Generalized climate maps for Hawai'i
Date:   Fri, 30 Nov 2007 18:48:55 GMT
From:   [log in to unmask] <[log in to unmask]>
To:     [log in to unmask]
CC:     [log in to unmask]


Hmm...typically climate maps are derived from weather station data.
You start out with point data and then apply kriging (or a similar technique) to infer contours.

I'll have to look up the equation that relates temperature to elevation.  Yes, I realize there are other factors -- bare rock absorbs heat better than vegetation, for instance.

Also I want to say there is an equation relating humidity with elevation as well.  I'm not sure how that impacts probability of rainfall.

Joe McCollum
Forest Inventory and Analysis
Knoxville TN

-- Maps-L <[log in to unmask]> wrote:
-------- Original Message --------
Subject:        Generalized climate maps for Hawai'i
Date:   Thu, 29 Nov 2007 16:22:57 -0500
From:   Weessies, Kathleen <[log in to unmask]>
To:     Maps, Air Photo & Geospatial Systems Forum <[log in to unmask]>


Hello, I am assisting a college student here at MSU who is seeking temperature and precipitation average maps of Hawai'i's big island over the last 100 years.  They can be quite generalized in terms of years, but geographically it needs to be detailed enough that she might extrapolate for the area between Mauna Kea and Mauna Loa.  Ideally she would like to see a projection of temperature readings for the area over the last 3,000 years, but that is a tall order!

All the weather station readings she has seen are not at the right elevation for her area of interest.  She is more interested in locating maps than locating data at this point.

Any advice would be much appreciated!

Kathleen Weessies
Geosciences/Planning Librarian
Michigan State University
100 Library W308
East Lansing, MI 48824
(517)432-6123 x250
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