Now let's practice the panel combo rotate and all panel sample base data interrogation. 

So to do this we're going to go to wfo scale and under the kcri menu, let's load the all tilts base data. So this is going to load a four panel with products on side A and side B of this four panel. Zoom in a little bit here. I'm gonna hit the dot on the keypad to toggle over. I've got reflectivity in the upper-left, zdr in the upper right, correlation coefficient in the lower right, and then kdp in the lower left. Now I'm gonna hit the up arrow to go to 0.5 degrees. And we're going to zoom in on our supercells close to the radar. And let's apply the panel combo rotate and all panel sample to a tornado debris signature detection, with this very large tornado at close range to this radar. This is the largest widest tornado on record in terms of damage path width. So this is a pretty historic event. It's a good event to practice using the TDS detection techniques using panel combo rotate. 

So I'm gonna hit the dot key on the keypad again. We've got reflectivity on the first panel. Side A is gonna be reflectivity again on the upper left, zdr upper right, correlation lower right, and kdp on the lower left. Now when I hit the delete key above the up and down arrows, it's going to jump into rotate mode. It's gonna zoom in to that first side, side a in that first panels is reflectivity. Every time I hit the delete key above the up arrow, it's going to cycle to the next, the next available panel on that four panel on side A. There's zdr, there's Correlation coefficient, there is kdp and then if I keep hitting the delete key it's gonna go to side B on the upper left which was SRM. Then base velocity, spectrum width, and then hydroclass. I hit delete again, it's gonna cycle around. So basically we're cycling through all eight of those loaded images, that is two paired four panels. 

So if we want to use the keyboard shortcuts, we can use the one through nine buttons on the upper left part of the keyboard. Here we have one to go to reflectivity. I hit the two key it's gonna go to zdr. Three goes to the lower right, which is correlation. Four, lower left kdp. Five is side B, upper left panel, SRM. Six is upper right panel, base velocity. Seven, lower right, spectrum width and eight is lower left, hydroclass. So these keyboard shortcuts are really handy because a lot of times, we'll do a lot of reflectivity relative product toggling. So let's hit a one key to go to the reflectivity. Then let's go do a one/two, and we can toggle between reflectivity and zdr. If we go one/three, we'll go between reflectivity and correlation coefficient. So I believe the five key is SRM. So if we toggle between reflectivity - one and SRM - five, you see there's a little weakness in reflectivity, maybe slight hints of an eye with the tornado and the leftover meso remnants with this tornadic circulation. Now when we want to look for a tornado debris signature, we first go to the strong localized velocity signature like we have here. And then we're going to toggle over to correlation coefficient, which is the three button. So again if we go back and forth between velocity SRM on five and kd, the correlation coefficient on three. Go five/three, then we see that they're very well correlated. And so when We also look at the low correlation coefficient, we want to look at reflectivity, so we hit the one key. We see that these are still very strong reflectivities. 40 Dbz the one key. Three key, correlations of 0.6, which are extremely low. And then five, it's right in that velocity signature. So this really helps us be able to compare different panels in flexible ways with keyboard shortcuts. 

We can also go to the velocity signature. And if we right click on the background, we can turn on the all panel sample, which will give us the values for all of the panels that are loaded at one location. This is really important again for trying to look at the hydrometeor phase. We have to find the location of the velocity couplet. We have to look at the reflectivity. It needs to be high reflectivity. If it's low reflectivity, then a lot of squirley things can happen with the dual pol variables. So 45 dBZ is strong reflectivity. Correlation coefficients less than 0.9. These are strong evidence, 0.7 strong evidence for a debris. It's not precipitation nor hail. The other values in there - zdr is close to zero and that's fairly common with tornado debris signatures. 

So you can see the all panel sample really lends itself to analyzing base data and dual pol variables together. And then the panel combo rotate allows us to do keyboard shortcuts to have zoomed in views of these kind of multiple Images. Now to get out of the panel combo rotate, we just hit the end button above the arrows on the keypad and that returns us to four panel mode. And we can go back to hitting the dot key on the keypad to kind of toggle between these and do sampling and kind of comparisons between products on this four panel. 

So that's  an introduction to panel combo rotate and all panel sample.