Hooly cow,
Mine is superior:
because it's buried deeper
Because it's got rocks and gravel pounded around it, to stabilize it.
The ones I'm finding, are way too often on the surface, or even protruding above the surface, such that they are unstable. Frost will move them. They are easy, and handy, but not long lasting.
I dig holes, pound the ground, and pound gravel into the dirt, most of the time. I sometimes do other things, to make them more useful. Paint on top, pound them through a flattened coke can, or other local trash. The TROUBLE with my system is it's prone to not be noticed, by another surveyor, and they might set their own.
I'm not bringing this up, because I'm totally satisfied with my own solutions.
I do try to make an xbase on every visit to that job.
N
?ÿ
Nate,?ÿ
You can always use OPUS SHARE...
https://www.ngs.noaa.gov/OPUS/getDatasheet.jsp?PID=BBFT48&ts=17297094353
Nate,?ÿ
You can always use OPUS SHARE...
https://www.ngs.noaa.gov/OPUS/getDatasheet.jsp?PID=BBFT48&ts=17297094353
I question whether a nail meets the intention NGS had for OPUS SHARE. Definitely could be useful for a more substantial monument.
Now, how do we get everybody into the habit of checking that list?
To ddsm,
Thank you for sharing that. There is a lot to learn for some of us. I'd like it if such thing were semi automated. I'm not super good at putting that together. Maybe a 2nd generation will include ways for DPOS to do that.?ÿ
I guess that getting all the surveyors "on the same page" is good, but it requires that some of us smarten up... And that's the rub!
Nate
To ddsm,
Thank you for sharing that. There is a lot to learn for some of us. I'd like it if such thing were semi automated. I'm not super good at putting that together.
It isn't hard. You collect at least 4 hours of static L1+L2 GPS data (other constellations ignored) on the point. Carefully record the ARP height. Take close up and area picture and some reference ties.
Get the file in a suitable format for OPUS (RINEX or some vendor raw formats). Go to the NGS OPUS website. Enter the file name, antenna type, ARP height, and email address. Check the share box. Submit.
The next page comes up for you to supply the description and pictures. See DDSM's example for how to word it. You enter the NGS PID if on a mark already in their data base or else give a new one a name.
Afterward you get an email of the preliminary data sheet to approve or edit.
Bill,
Back in the GPS on Benchmarks program it was a regular 'get together' for Arkansas Surveyors...4 hour OPUS observations in the mornings and 4 hours of storytelling and beer in the afternoon.
DDSM