Saturday, July 11, 2009

A starting point

Over yesterday's bitch fest. I had a good day. Let me just say this tho - i am constantly surprised by how much of a people person i am. I THINK that i am a scientist type with poor people skills and even less desire you use the ones i have. Then i spend a day chatting and making friends and gosh darn it enjoying myself.

Anyway i decided to show you one of my little projects that i am finishing off and writing about. One of the problems (for there are many) with working with satellite data (of Antarctic regions in this case) is all the cloud that gets in the way. I started off heavy on the cloud detection.



This is an image showing a satellite (AVHRR) product and the cloud detection product my first algorithm made. This was based on other research (not mine) and i can supply names....but not publicly. There is a key to help

After a LONG time i realised my error and understood that i wasn't really interested in clouds as such rather i am only interested in water (the polynyas). So i refined things and look for open water and open water under cloud (and then remove the cloud if i can). When i say this i mean that the computer churns through thousands and thousands of images and does it all for me. What you need to remember is that it took a lot of time and effort to let the computer do this. Sometimes i think it might have been quicker to just look at the damn things one at a time myself! But not as much fun :)

If you ever need something to put to sleep then sure, you go ahead and ask me all about my algorithms and how they do amazing things....or all about the different types of ice.

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