Mountain wave clouds over Colorado's Front Range northeast of Boulder, Jan. 24, 2015. (Photo: ©Tom Yulsman) Pic of the Day After a little over a week in Tromsø, Norway, I'm back home. And it's my birthday. So I celebrated with a run on the backroads near my home town of Niwot, Colorado. Along the way, I shot the iPhone photomosaic above — my Pic of the Day. It shows a mountain wave cloud over the Front Range (toward the left of the image, above the yellow glow). For more photos of mountain wave clouds, and an explanation, see this Pic of the Day post from earlier in January. If you follow ImaGeo, you probably know that I was in Tromsø for the Arctic Frontiers conference. I've published a few posts from there already. (See here and here, for example.) And I have more coming in the next week, including guest posts from two graduate students who came with me. (I teach journalism at the University of Colorado.) So stay tuned for those. I'll also have more Pic of the Day images to share. So I hope you'll come back.