That's the team, getting ready for some training earlier today, on line search and probability of detection. We had a good turnout—15 of us, I believe, including four from mounted with their horses.
Here's how it worked:
Yesterday, our team captain and other volunteers set up the course. They put out a bunch of five-gallon buckets, all painted brown to blend in with the surroundings. These buckets were spread out among the ponderosa pine, which is fairly open terrain but still littered with forest debris, rocks, and stumps, the latter resembling the buckets (or, rather, vice versa).
Behold Nelson and a bucket...
Today, we split into teams of three or four and, team by team, determined our critical spacing. That means an object roughly the same size as what we'd be looking for (in this case, it was an identical brown bucket) was set on the ground, and each person walked away from it to the point where they could still see the bucket and identify it as a bucket. We then counted our paces from that point back to the bucket. The average of each team's results was the critical spacing used for that team's line.
Now, using critical spacing usually means each person is twice that measured distance from the next searcher. That way, if the object is exactly between two people, it could still be seen. Critical spacing is affected not only by the size of the object—which, of course, could be as big as an unresponsive person or as small as a bullet—the terrain, the amount of brush, the weather, and so forth. Given the conditions and size of the objects today, our team's critical spacing turned out to be 30 paces, or roughly 90 to 100 feet, which meant searchers could be 60 paces, or about 200 feet, apart.
Given the size of the search area, however, and the number of people in our lines, we spread out at half critical spacing, or 30 paces apart (except for the mounted folks, who went two at a time, 60 paces apart). We all had radios in order to communicate rather than shouting down the line. We'd say, "Team 1, stop" or "Team 1, start," stating our team number first because there were other teams in the field, to start and stop our lines moving forward at intervals.
This photo shows the distance between me and my next teammate in the line, while another teammate paces off to his spot further out.
So, okay, each time a team member spotted a bucket, they would stop the line without pointing to the sighted bucket and write down the GPS coordinates of their current location, the direction of the bucket from their location using positions on a clock, and then their approximate distance from that bucket.
Sometimes, when the line stopped, other team members would spot the same bucket. Other times, the line would start up again, only to be stopped one step later when someone else spotted that or a different bucket. So it was stop and go, stop and go. We didn't know until we finished how many buckets were in the field.
I know, this sounds awfully thrilling, doesn't it? But I enjoy searching, not to mention the company of my teammates, and this was like a treasure hunt to me. It was also good practice for staying in our grid, keeping an eye on the person to our right and maintaining our spacing. That's much more challenging in more variable terrain and denser brush than we had today, though.
After the exercise, we all gave our notes to our coordinator, who's going to do some calculations and explain the results at our next meeting. Until then, I'm not really sure what kind of POD information he'll give us, but I'll let you know when he does.
So that was today's event. That and playing with my new camera and getting some news. Members of our team, along with the adjoining Yavapai County SAR team and others, have been searching on and off for more than two and a half years for a plane that disappeared in the Sedona area. That plane, flown by William Westover, a private pilot from Phoenix, with his passenger Marcy Randolph, has been found in a canyon in the Secret Mountain Wilderness. Here's the article from the Arizona Daily Sun: Plane wreckage identified.
Oops! There goes my pager! Gotta run...
