"In the world ye shall have tribulation: but be of good cheer; I have overcome the world." –John 16:33

San Pedro Garza Garcia

Category: Retirement PhD Page 1 of 5

GRIME Lab articles

Still more good things are happening with our GRIME Lab research team at University of Nebraska. Troy sent me links to two articles that were published yesterday. The first is an UNL general interest news story about the goings on at the GRIME Lab, who works there, and what we are doing. John S. and I are mentioned in the article in addition to Troy and others. The second is an open access article (you can read it and download it for free) on evaluation of whether there is enough information in images of a river to predict stage (water level) and discharge (flow). The article, published in PLOS Water is titled is Stage and discharge prediction from documentary time-lapse imagery. I am the primary author, but Troy, Christian, John, and several others are co-authors. The graph below is one of the prediction vs. actual comparison graphs from the paper.

Photo from Troy

Troy took this selfie of he and I while we were standing in the hallway waiting to enter the arena at University of Nebraska–Lincoln for the graduation and hooding ceremony (notice I do not yet have my hood on. I still marvel that we have made it this far and are going strong. We are up to about 17 years now working on these ground-based water imagery projects. God willing, I hope to continue contributing for many years to come. It is great to have our friend, John S., join the fray. I have to admit the guy is a monster in the amount of work he gets done. He has accelerated the project massively since he started.

Christian honors math degree

Lorena found this in a file box today when she was looking for some tax documents for me. It reminded me of how proud we are of Christian’s hard work and dedication throughout his Bachelor’s and PhD degree and then on to his current research scientist position at MIT. As graduation approaches and we get invited to high school graduation ceremonies, it is nice to remember Christian graduated summa cum laude with an honors degree in Applied Mathematics from NCSU as his same age peers were graduating from high school. We are going to frame this and put it on the wall beside his diplomas.

Modeling UNL School of Natural Resources Spring Collection

I bought one of these long-sleeve t-shirts for everyone in the family and gave it to them when I graduated. I had never worn it and even forgot that I had it. This morning, I dug deep in my shirt draw and there it was. It is now my favorite t-shirt. Perfect to protect my delicate skin for walks in the sun.

Volunteer research update

My PhD adviser, Troy, at University of Nebraska just sent me an image from a new camera he put up for some research we are doing. I actually have quite a few updates about the work I am doing with Troy (and others) since when I graduated. It is still pretty weird to have people calling me Dr. Chapman, but it is also pretty fun. So, I am just going to do this as a list and might fill in details on some of it as things start to happen. Here is what is going on:

  • University of Nebraska-Lincoln is in the process of making me an adjunct professor
  • North Carolina State University (NCSU) is in the process of making me and adjunct professor
  • Our planned next article is a publication with additional data based on the fourth chapter of my dissertation
  • The article after that will be an analysis of how well we do with the very small octagon in the picture above relative to the bigger octagon (I will discus the calibration methods in a future post)
  • I am a committee member for a Bio-Ag Engineering PhD student at NCSU

Applying for adjunct

Even after finishing my PhD at University of Nebraska–Lincoln (UNL), I continue to work there as a volunteer. We have collaborative projects with the ITESM University system in Mexico, a public/private water services company in Australia, University of Nebraska–Kearney, North Carolina State University, and the USGS, with other potential partners on the horizon. My professor, Troy is working to make me an Adjunct Professor at UNL so that I can act as a committee member for appropriate graduate students and have an official, unpaid connection with the university for work I would be doing whether or not they give me that designation. Today, I wrote them a formal letter to request an adjunct professor appointment, so we will see where it goes from here. I continue to work on the GRIME2 software and support the research efforts that use it. It is kind of amazing to us that it continues to attract user and has different applications than what we could have imagined when we wrote the software.

Troy’s first textbook

Congratulation to Professor Troy, Gilmore for the publication of his first textbook with co-author Kip Solomon. I am very proud to have gotten my PhD under his tutelage. It is great to be volunteering with him still at University of Nebraska. In addition to the University of Nebraska projects, I am also volunteering with Troy’s old North Carolina State University professor. It only takes a handful of hours per week and it is very enjoyable. I am hoping to continue to work on this for the foreseeable future, God willing. There are a number of opportunities I want to explore with universities in Mexico, too. The connection between UNL and ITESM Guadalajara continues with new initiatives cropping up. It is odd that I am working in an area way outside what has ever previously interested me and enjoying it a ton. In the end, it is the people of good will who make it worthwhile.

My buddy John forms his PhD committee

I am very proud of my buddy John S. who had his first PhD committee meeting at University of Nebraska-Lincoln. I meet John in 2007 when I started a new job in Raleigh, North Carolina. We worked MANY late nights together and formed a life-long friendship. He is about a decade younger than I am so, while he is younger then me, I could not say that he is young. One night when I was about a third of the way into my PhD program, we got into a conversation about what I was doing. He thought he might like to do something like that, too, so I connected him up with my professor Troy G. To make a long story short, they talked, he applied to the program and has been working on it ever since. He has had a HUGE impact on our area of research. I have to say that is significantly greater than my own research. I did perform the prototype work for his research topic, but he has taken it wildly beyond what I did or even imagined. I think he is about half-way through his program now, has been instrumental in helping to secure grants for Troy and is on the way to very big things in the area of ground-based imagery analysis and machine learning/artificial intelligence for ecology and hydrology. His committee meeting went really well. We are all very much looking forward to where his research leads.

Official graduation photos

The offering from official photographer for the University of Nebraska-Lincoln 2023 Fall graduation arrived in the mail the other day. I was not planning on getting any more pictures, but I liked this one, so bought it. I am still struggling with what to next and now it is compounded by the fact that a couple members of my team are going to hang up their keyboards and retire. Mark and Frank are ages 77 and 78 and I cannot say I blame them. I would love to work at something I love as long as they have and contribute at their (extremely) high level of performance. I suppose it happens to everyone that they start noticing what the lives of their peers is like after they retire. The more I see that and think about it, the more I want to continue working or doing hard things as long as possible. Mike, my co-vice president, told me his dad was 85 years old and still goes into work two days per week to keep his mind active. Donald Trump seems to be getting more vigorous every day and it might be attributable to the fact that he has found something meaningful that he wants to accomplish that requires that vigor and an active mind. The older I get, the more I think maybe I need to consider trying to work until I am 80, God willing, of course.

Nebraska merch pays off

The University of Nebraska merch pays off! Just letting you know, if you have it you need to wear it. We have had MULTIPLE people either stop us to talk and/or yell GO HUSKERS in Texas, Boston, and Washington, D.C. Multiple in EACH PLACE! Looking forward to doing this on my upcoming trip to Oregon. I think I need to buy more because all I really have now is the ball cap in this picture. I lost my sweatshirt on a trip to Boston–think I left it on the plane.

Post-doc volunteer work

I am off and running on the volunteer work I am doing for the GaugeCam GRIME Lab. I am now automatically downloading images from the USGS HIVIS KOLA camera site and plan to see if I can write Python code to measure the water level in images with only a very small octagon in them (less than the width of a typical staff gauge) to be used for creating a pixel to world coordinate calibration model. I did not think I would be so energized on this project, but it is very gratifying and a lot more enjoyable without the time pressure associated with the work I did for my PhD. We are going to try to start off just with small, finite length project with specific research goals in mind and see how that goes.

Post-doctoral (volunteer) research project

Now that my PhD schooling is complete, I have asked to stay on and continue the research that started at North Carolina State University back in 2009. Troy (UNL) and Mary (UNK) have positioned a much smaller target at the Kearney Outdoor Learning Center (KOLA) in Kearney, Nebraska. The idea is to investigate the stage measurement accuracy level when the octagon used for pixel to world coordinate calibration is small enough to fit on the top of a traditional USGS staff gauge. This fits into Troy’s and Mary’s research programmed aimed at reducing the conditioning (addition of objects solely to help measure) of water body images. I am in the process of porting the original code written in C++ to Python so it is easier for people in the hydrology community to use. Troy writes about it over at the GaugeCam blog: here.

Online PhD commencement video

Troy and I show up at around 32:00 and also at a little after 1:15:00

Commencement: The day after

Christian and Kelly took Lorena and I to the fabulous Boiler Room Restaurant in Omaha for a steak after the commencement ceremony at University of Nebraska–Lincoln. That is the same place where Lorena, Christian and I went after my dissertation defense back in June. Afterward, we all went to a craft cocktail bar named Berry & Rye and had a foo-foo drink before we went home. On the drive up from Lincoln we stopped in at something called the Holy Family Shrine–a roadside Catholic shrine that is an architectural marvel with flowing internal water features and spectacular views of the landscapes and hills along the I-80 freeway.

Retirement PhD: Done

I have the diploma, my University of Nebraska email and Teams accounts are going away in a month or two, and there is a real feeling of finality to this enterprise of getting a retirement PhD even though I am not yet retired (thankfully). I have already started on a volunteer research project with the GRIME Lab. I am going to take that work at a much more leisurely pace. Hopefully, we will be doing something with the ITESM university system in Mexico, too, so it should be fun.

Best graduation gift

Lorena and I had an outdoor thermometer at our house in Centralia that we loved to check. Youngin’s parents wanted to get me something. Unbeknownst to them, they got us just the perfect gift. Lorena and I are looking for a bracket that will allow us to rotate the thing different directions so we can use in when we are sitting on the porch or in the living room. The best part is that it is a Cornhuskers branded thermometer. I almost laughed when I opened it because it was so perfect.

Thank you Troy

A huge note of thanks to my PhD adviser, Professor Troy Gilmore (top photo), at University of Nebraska–Lincoln and founder of the GaugeCam GRIME Lab where I plan to volunteer now that I have finished my degree. No words are sufficient to express my level of gratitude for his support through so many years of education and research and, even more, for his friendship. His wife, Youngin, made a spectacular Korean dinner for the commencement after-party with committee members, Aaron Mittlestet (bottom photo) and Mary Harner. I am just so grateful for it all.

Graduated

Done. They handed me the actual diploma during the graduation. Troy and Youngin threw us an amazing after party. I will describe it all in a little more detail when I am not writing on my phone.

Last day of school

Today, Lorena and I are meeting Troy and Youngin for lunch in downtown Lincoln. This is probably my last day of school, ever. It has been an incredible amount of work, but every minute was worth it. Part of this had to do with me wanting to get a PhD, but honestly, the best part was the people with whom I worked. My committee consisted of 100% people of good will. My buddy John S. Started in the same program about halfway through my program and it has always been a joy to work with him. I’m going to enjoy continuing to volunteer with Troy, but it kind of won’t be the same. I just wish there was a way to adequately thank everyone involved.

Drive to Lincoln

Lorena and I drove up from Texas to Lincoln Nebraska today for my graduation. It was a really nice drive that we took pretty slow, stopping to eat whenever we wanted. I’m getting a little nostalgic about all of the schooling at this point. This really is the last time I’m going to do something like this. I’m glad I did it, it gave me great joy.

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