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spmpls
@spmpls
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Joined: June 7, 2016 8:44 am
Topics: 21 / Replies: 635
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RE: I couldn't run away from home if I wanted to

My dad taught at a small high school in California for almost 35 years. He knew everyone, or they knew him. That was true for several neighboring coun...

3 years ago
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RE: Be careful out there

I had to "dispatch" about a 300 pound black bear in my camp in 2016. I was one of four people in the whole campground, the other three were my late br...

4 years ago
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RE: COVID Vaccine reactions/side effects

@mightymoe One of the many reasons why my wife and I have elected to opt out of the vaccines. I have never had a flu shot because guessing is involve...

4 years ago
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RE: Former contributors to this site and predecessors---deceased

Ryan was quite young and it was very much a shock. He was a student in one of my one-day classes just a few weeks before he passed and that was the fi...

4 years ago
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RE: Datum Pairing

@bushaxe Totally understood. We have recovered NGVD29 marks in the valley floors of California and tied them into NAVD88 based projects (not as const...

4 years ago
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RE: Datum Pairing

@bushaxe Many people don't know that NGVD29 was named "The Sea Level Datum of 1929" until NGS renamed it in 1973, as it did not represent mean sea le...

4 years ago
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RE: Datum Pairing

I use this image in presentations that I give. The velocities shown (mm/year) were extracted from the NGS utility HTDP at specific control point locat...

4 years ago
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RE: Datum Pairing

@jitterboogie Here you go then. A California colleague and friend authored this. ?ÿ

4 years ago
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RE: Datum Pairing

@jitterboogie Likely 1991.35, which is the epoch date of our HPGN, known as HARN elsewhere. There are still areas of California where the HPGN values...

4 years ago
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RE: NGS reply to question of offset GPS obs to vertically-set BMs

That is unfortunate because based on my experiences, NGS requires the use of a single piece rod to comply with the cited FGCS specifications: Please ...

4 years ago
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RE: Control errors using CRTN

I suggest contacting Dr. Bock at CRTN to help understand the root of your issue. If he can't address it, there are others (users of CRTN) who he can r...

4 years ago
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RE: Anyone ƒ??attending ƒ?? the NGS Geospatial Summit starting tomorrow?

As a State Geodetic Coordinator for the past 5 years I have attended almost every NGS webinar and presentation on the NSRS Modernization in addition t...

4 years ago
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RE: The US versus International foot on TV

I got an email from an NGS employee to alert me to it. I emailed Michael this morning and he said the trophy is marked "Made in China" so it is clearl...

4 years ago
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Replies: 9
Views: 3
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RE: Tell us you're a surveyor without saying you're a surveyor

I am a combination of treasure hunter, legal scholar, researcher, evidence analyzer, oath taker, arbitrator, business person, explorer, mathematician,...

4 years ago
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RE: Your longest shot with a total station

In about 1979 on my first job as a party chief, we shot something a little over 13,000 feet in the cool of the morning in the mountains with an HP3810...

4 years ago
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4 years ago
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RE: I'm Glad We Cleared That Up

@jim-frame Surely done after I departed, likely under contract to get all of the SSJDD parcels digitally mapped. I am sure that parcel number is a "l...

4 years ago
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RE: I'm Glad We Cleared That Up

@bstrand Except the chord distance is rounded, typically to the hundredth. The radius is typically an even number, exactly, say 400' and the Delta is...

4 years ago
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RE: Someone please help me understand...

Just wanted to make sure that their ban was permanent rather than just a temporary "time out"? That email certainly did the trick, I am sure.

4 years ago
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