Nate,
That one will work fine, gather 4 or more hours of data on it at a 1, 2,3,5,15, or 30 second epoch interval, convert it to RINEX and submit it to OPUS Share along with 2 pictures, one close up of the monument and the other of the mark and your equipment looking south. Be very careful with the antenna height, fixed height tripods are preferred and join the fun. I am going to spend the week down in that corner of the state with our crew observing benchmarks, then Saturday meet up with DDSM and get my low hanging fruit.
Slant height, or direct measure, on the HI? I can take a pic of the tape, doing the HI Measure.
N
Jim Frame, post: 361694, member: 10 wrote: There's a list somewhere of priority bench marks, but I wasn't able to find it just now. Anyone have a link?
P.S. to John Nolton: even NOAA isn't consistent in its formatting of "bench marks" / "benchmarks." See this page for an example of the one-word version.
Thanks Jim. I guess they ( NGS ) don't read there own manuals.
JOHN NOLTON
Nate The Surveyor, post: 361923, member: 291 wrote: I can take a pic of the tape, doing the HI Measure.
I suggest taking photos of the HI measurement and submitting them. HI blunders are the bane of GPS height transfer, which is the reason fixed-height tripods are so strongly preferred. With a conventional tripod or other antenna mount you want to give the NGS staff as much of a warm-and-fuzzy about your antenna height as you can.
[USER=291]@Nate The Surveyor[/USER]
Nate that mark in Glenwood should be a high priority BM to observe. If you can, go back in 2 or 3 months and do another observation. NGS likes to have multiple observations on a mark before they use it in a GEOID model. My bgtroup will be over south and west of you that week. We are hitting marks around Ashdown, Horatio, DeQueen, and Gillham
This is happening now!
Anybody else logged in here while performing their observation?
We had 12 units running from 11:00 CDT till 16:30.
Four of them were on new marks and 8 were on benchmarks. I didn't have internet access at my points. Very limited cell service. Yesterday I did a BM in SW Arkansas that you can see Oklahoma from and less than10 miles from Texas it was set in1986 and we did he first recovery on it
Steve, Due to an unforseen scheduling accident, I wound up retracing a DAN ROBISON survey yesterday... instead of observing the one in Glenwood!
Nate The Surveyor, post: 363919, member: 291 wrote: I wound up retracing a DAN ROBISON survey yesterday...
Nate,
I hope you found my humble efforts to your satisfaction...
If not, I point your attention to Arkansas Code Annotated å¤ 16-56-112:
...In no event may any action based upon any defect in this survey be commenced more than five years from the date of the certification shown hereon...
DDSM:whistle:
Now, what makes you think there is a defect somewhere? I'll be looking now!
🙂
On a better note, and not kidding any more. IF I find a defect, that is significant, my policy is to ALWAYS contact the other surveyor, and hopefully, discover that the defect was mine. If you don't hear from me, you are golden. If you (You in particular) do hear from me, you are probably golden too. Because I appreciate your camaraderie, and friendship!
Nate
Steve Corley, post: 361652, member: 23 wrote: Dan Robison and I are planning to do observations on a couple of benchmarks that I have classified as "low hanging fruit" on 26 March 2016. Is anyone else going to participate?
A good way to spend a day...
1052 and 1056
SC and DR
Nate The Surveyor, post: 363919, member: 291 wrote: Steve, Due to an unforseen scheduling accident, I wound up retracing a DAN ROBISON survey yesterday... instead of observing the one in Glenwood!
Nate, that is OK, you can just go observe on that point any time you like and send it to OPUS Share. You are in one of the problem areas of our Geoid Model. If I remember correctly your area is rated at 5 to 7 cm accuracy in vertical. If we can get multiple observations on 4 or more bench marks in that area, they will probably use them to improve the Geoid Model. Do it this month and you can join in with all the repeat observations from some of the people that did observations last month.
Steve Corley, post: 365718, member: 23 wrote: Do it this month and you can join in with all the repeat observations from some of the people that did observations last
Congratulations Steve for helping ARKANSAS have the most GPS on Benchmarks and OPUS DB Share submittals for National Surveyors Week AND the Month of March. If it wasn't for your and Brian Ward's leadership, we Arkies would only be famous for WalMart and RAZORBACKS...
How many observations did Arkansas finally submit? Which State was runner-up?
DDSM:beer:
Dan B. Robison, post: 365730, member: 34 wrote: Congratulations Steve for helping ARKANSAS have the most GPS on Benchmarks and OPUS DB Share submittals for National Surveyors Week AND the Month of March. If it wasn't for your and Brian Ward's leadership, we Arkies would only be famous for WalMart and RAZORBACKS...
How many observations did Arkansas finally submit? Which State was runner-up?
DDSM:beer:
Dan, we only got 70 done that week I only got 5 on the last day. I think that Virginia was the runner up. Vermont also was in the running I think they were 2 behind Virginia. I discovered today that I missed approving 3 observations so we already have 3 for April. I have a few more that I cans send later this month.
Steve,
Spoke with [USER=291]@Nate The Surveyor[/USER] this morning and he said he was still wanting to submit a file.
[USER=7189]@base9geodesy[/USER] spoke highly of your and Brian's work and I would like to thank you for your encouragement.
DDSM:beer:
National Surveyors Week is not the only time that this can be done. I try to GPS one point each month. I have a receiver running as I post. It has been going for 10 day now. It is on a stable mount, at equal distances Dom 4 CORS Stations that have Orthometric heights on them.
If each surveyor on beer leg that uses GPS submitted one benchmark every 2 months, we would really help the Geoid Model. Especially if we selected benchmarks that are in areas where the model needs help.
