MDB

notebook

COS

MDB

Boreal

MDB

TAG

South East Cave Density

This was generated using Spatial Analyst and a simple point to grid function using a one square mile cell. In other words it is a very basic count by grid cell, no interpolation, exact visualisation of Tennessee's cave density. I plan on extending this to Alabama and Georgia once I manage to get cave locations for these states. I was surprised how easily this was done using ARC and how complicated it would be using Manifold. I expected the opposite.

It's interesting to compare my density surface to Dave Weary's found as figure 8 in this report: pubs.usgs.gov/sir/2005/5160/PDF/sir2005-5160part3A.pdf
He is only using 1,395 cave locations for the entire Appalachians whereas I had over 9,000 for TN alone. He is deriving a continuous surface interpolating between points. Is this what's known as kernel density? I think what I am showing is a better representation of reality.

This is very early data exploration for a more thorough examination of the TAG region's karst features.

Back to the blogging world

It's been 2 years since I last updated this so...bear with me.

Mostly the reason is I haven't had much to say and I've been busy pursuing grad school, and a new job to keep up with this too much. Also there has been way too many blogs out there. Now that twittering has become the new blogging I feel more comfortable coming back to blogging as the pace is a little bit more relaxed.

The new focus will be "writing" about current works in progress primarily in my capacity as a map editor at an international magazine focused on photography and geography. For now the idea is to post examples, samples, and discussion items concerning maps I am actively working on and developing. It may be as simple as a screen shot of what I've done that day, or problems I've solved. It may be stuff that appears very mundane to most or very exciting. It will be a small window into my world.

I hope you find some enjoyment out of it.