You can try doing a topo survey by flying a drone in a relatively wooded area and compare your findings with that done with traditional equipment. If you have access to a Lidar drone you can even try and compare Lidar, photogrammetry (whether you use GCP, PPK or RTK) and traditional equipment. When I did my senior project, I was trying to shoot for something NASA worthy and got bogged down before even picking up a topic. My senior project was about getting into our local clerk's office and dig out plats and see if they all complied with the State's surveying board rules, and then reported in percentage how many of them complied or not. Simple as that. It was a bit controversial but the surveyors' identities were removed from the reports.
EDIT: I didn't realize this was a 2014 topic, why did this show up on the recent topic list? ?????ÿ
Hah?ÿ Yeah, I almost responded before I noticed the date as well.
It's an interesting question though and I was wondering the exact same thing a few years ago when I was faced with choosing a project.?ÿ I looked at the stuff previous students had done and it was all crazy complex things that looked like it was intended to knock he socks off the judges rather than necessarily demonstrate competency.?ÿ That's not to say it's not possible to do both but... when are you actually going to need to map the surface of a penny in the real world, ya know?
After kicking around various ideas I eventually settled on a straightforward chain of title research and boundary retracement.?ÿ I decided it would be better to leave school having done something an employer might expect me to do fairly early on that some flashy thing that nobody in the working world would really care about.?ÿ After graduating I realized my choice was perfect.
There was a new post on the first page that brought this back to the top.?ÿ?ÿ
November 14, 2020 5:14 pm
Where in the central valley??ÿ If you're close enough to the areas that are experiencing extreme subsidence, a project that monitors the movement on a daily or weekly basis might produce some interesting results.?ÿ?ÿ
Where in the central valley??ÿ If you're close enough to the areas that are experiencing extreme subsidence, a project that monitors the movement on a daily or weekly basis might produce some interesting results.?ÿ?ÿ
It would be interesting to see what has transpired in and around the "El Nido Bowl" since it dropped at least 2 feet between January 2008 and January 2010. That sudden drop seemed to be induced by a change in the surface land use, rather than the drought, which didn't start until at least a year later. I would look for areas, even small ones (the El Nido bowl is only a few miles across at its deepest) where the surface land use has been changed from say grazing to some sort of thirsty ag use. Of course, one would need to look at the geology. If the subsidence prone geology isn't present, the potential subsidence will be minimal, at most.
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Despite that you should be since graduated and licensed, I will repond for future seniors.
You did not mention GPS, unless you consider that remote sensing. Since distance takes away your available time I suggest you confine yourself to your college campus. I suggest you subdivide off an area for a survey library, since the survey society providing the funding is a separate entity from the university. Make it classroom size with entry and rest rooms. See if you can do it within existing zoning and/or include all variances required. Include independent sewer and utility connections. Use all available survey methods, GPS to tie into the university boundary, traditional traverse to at least two known corners, traditional level to a benchmark. Locate adjacent buildings with transit and tape, using perpendicular or building face line offset shots and do the immediate construction area topo with a level and stadia rod. Include all field book work. Do not be concerned with large sheet sizes, letter, legal or ledger size plan set is easier. If you are simulating a board submission include on the cover sheet a "Waiver Request for Sheet Size". in PA a surveyor could design the minor road and utility extensions and calculate any additional stormwater runoff.
Paul in PA, PE, PLS
You could learn how to develop an LDP and do some surveying in the LDP to show its benefit or not.
I'd like to see someone publish carefully a done study (lots of averaging) of base-rover standard deviations for various short occupation?ÿ times at various small-to-moderate distances at various epoch rates. The data I've seen doesn't cover short times at those distances.
I'd like to see someone publish carefully a done study (lots of averaging) of base-rover standard deviations for various short occupation?ÿ times at various small-to-moderate distances at various epoch rates. The data I've seen doesn't cover short times at those distances.
Oregon DOT will be publishing a research project soon that will cover some of this.
Oregon DOT will be publishing a research project soon that will cover some of this.
The RTK elevation error report we did for DWR in 2011 covers some of Bill's interest.?ÿ Scott, any reason not to upload it here?
By all means, Jim. You probably can put your hands on it quicker than I can.
Thanks.
It's old, and the findings weren't exactly earth-shattering, but here it is.
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A cursory look at the report seems to indicate a minute got most of the improvement at distances of a few km, and 2 minutes at the larger distances.
Longer should always be statistically better, but quickly got into diminishing returns. The trends were not clear cut.
Also the effect subsidence has had on the vertical profile of the high speed rail project. Current ground elevations along the profile are not even close to the elevations used for design. This has also impacted the survey control established along the route for design and construction.
How do you incorporate and adapt? Fun stuff!?ÿ
