AI Assistant
Notifications
Clear all
shawn-billings
shawn-billings
@shawn-billings
Member
Joined: May 29, 2012 9:14 am
Last seen: March 14, 2025 3:27 pm
Topics: 93 / Replies: 2598
Reply
9 years ago
Reply
RE: CORS Station P565 - Subsidence by Drought or Groundwater Pumping

The question comes down to this. Is the displacement caused by ground displacement or something mechanical? If it's mechanical, then an updated coordi...

9 years ago
Reply
RE: CORS Station P565 - Subsidence by Drought or Groundwater Pumping

If the daily variations were reliably understood, guaranteed to be caused by surface motion and not a change in the antenna or some other non-geologic...

9 years ago
Reply
RE: CORS Station P565 - Subsidence by Drought or Groundwater Pumping

MightyMoe, post: 448978, member: 700 wrote: Let's hope no surveyor or anyone else is using it for elevation control:(That would depend. Is the subside...

9 years ago
Reply
RE: Let's play "outfit a survey business".

Office and logistical equipment and software has also come down A LOT. I work from a nice laptop that I paid $1200 for (if memory serves correctly). I...

9 years ago
Reply
RE: Let's play "outfit a survey business".

GMPLS, post: 448942, member: 8404 wrote: The one big item I bought new when I started up this year was a Focus 35 robot. I put $3k down and my payment...

9 years ago
Reply
RE: Let's play "outfit a survey business".

Loyal, post: 448937, member: 228 wrote: As I recall (which isn't very good sometimes), the HP-3820a cost about $36,000 back in 79 or 80 when it first ...

9 years ago
Reply
RE: Let's play "outfit a survey business".

James Fleming, post: 448930, member: 136 wrote: ThisBack in 2009 I bought a demo Sokkia robot, Carson data collector, Carlson field & office softw...

9 years ago
Reply
RE: Let's play "outfit a survey business".

What amazes me is how inexpensive outfitting a survey office can be now compared to a couple of decades ago. I used to "play-like" with the Allen Prec...

9 years ago
Reply
RE: Do you agree with NGS policy on updating CORS coordinates

At the very least exclude stations that vary more than some tolerance from OPUS solutions automatically, and perhaps add a flag somewhere that the las...

9 years ago
Reply
RE: Do you agree with NGS policy on updating CORS coordinates

John Hamilton, post: 448778, member: 640 wrote: So, my question is, do you think NGS should update CORS coordinates more frequently (i.e. smaller tole...

9 years ago
Reply
RE: Great Textbook quote

When you give a surveyor a thesaurus...

9 years ago
Reply
RE: Static GPS

The trivial vector argument has been around for a long time. It's obsolete. As has been said, the commercial processors we use are baseline processors...

9 years ago
Reply
RE: Static GPS

With two receivers I'd recommend performing two radial sessions. Set base on a secure site and tie each point for 30 to 60 minutes. Move base to secon...

9 years ago
Reply
RE: What's your perspective? TED talk by Conrad Wolfram

MathTeacher, post: 447116, member: 7674 wrote: Wolfram would agree. Does it matter whether you teach someone the right buttons to push and then the th...

9 years ago
Reply
RE: What's your perspective? TED talk by Conrad Wolfram

Yeah. I think CAD does a lot of the heavy lifting that some surveyors of the past struggled with, such as curve calculations. I agree that I don't li...

9 years ago
Reply
RE: What's your perspective? TED talk by Conrad Wolfram

I was thinking about this a couple of days ago. My anecdotal experiences suggest that there are less mechanical survey errors in today's work than tha...

9 years ago
Page 20 / 135