What have I been up to? - September 19th Edition

Recently my life has been consumed with picking data! Picking, and picking, and piiicking, and piiiiiiiiicking ... But hey, that's ok! I'm 18 OBS down, 15 OBS to go, and ~ 45 onshore stations to pick! Wait, that's a lot more than I thought ... Ah, oh well I'm sure time will fly! To stave off madness I have been taking breaks brainstorming ways of effectively displaying my picking escapades. These include plots of my progress (to prove to my advisor I've been working ... cough, I mean to practice visualizing data)

My progress picking compared to that of my intern who worked with me for several months over this summer.  There's an interesting periodicity to my picking productivity ... say that three times fast - picking productivity periodicity, picking productivity periodicity, picking productivity periodicity

I've also made some beginning attempts at creating visualizations of the 3D ray paths used in my tomographic inversion.  Remember that these rays show the path the seismic energy followed between the airgun and the lake bottom seismometer.  In the beginning stages my intern and I were only inverting a small portion of the data (11 instruments to offsets < 60 km) which limited the depth penetration of the rays.  The farther the offsets the deeper the rays will bottom.  Thus we definitely plan to have rays diving to depths > 30 km for the final model but the model shown below only goes to 5 km.

3D visualization of ray paths (grey lines) traced for one "lake" bottom seismometer (red star).  The locations of the Lake Malawi shoreline are shown in black at the top of the image and the locations of other instruments are shown by the blue triangles.  For these close offset shots the rays bottom at depths of ~ 4km.

I made the above GIF in a very similar manner as I made the videos of the traveling ambient noise wave field (check out my post on making videos here).  The only difference was that for this GIF I made the individual images using GMT rather than Matlab as Matlab came to a screeching halt every time I tried to plot the 1,000's of raypaths in a single figure.  To that end the next time my brain cries out for a sanity break from all this picking I promise to post about how to plot in 3D with GMT, I promise!

Until then, get back to work picking! Whoops, that's me not you, I mean get back to work with whatever you were doing before reading this ;)