I found this map among a collection of maps. field books and correspondence that were kept by Percy P. Barbour. Mr Barbour was a U.S. [Deputy] Minera...

One last departing shot from sun spot AR2673. :dizzy:From www.spaceweather.comMAJOR SOLAR FLARE AND RADIATION STORM: Departing sunspot AR2673 erupted...

For those interested, here is an anonymous link to the original survey (1883) and dependent resurvey (1989) field notes.I hosted the notes since one o...

Tom,What Loyal is talking about is to look at the short-term time series plots for the CORS stations used by OPUS. For example, here are the 90-day p...

Tom,What Loyal is talking about is to look at the short-term time series plots for the CORS stations used by OPUS. For example, here are the 90-day p...

If you are inclined to do a science experiment, I can create a project in OPUS Projects. Loyal suggested above to include CORS stations that have dec...

The percent observations used is only 45% with 71% of the ambiguities fixed. Values that low indicate that there is not much you can do to improve th...

Jim,I guess I'm thinking that higher latitudes are related to the absolute value of the latitude. 🙂

Norm Larson, post: 446034, member: 7899 wrote: I watched Despicable Me 3 last night and these little guys are around 2 feet tall not the 105 cm the we...

Perhaps not the best time for GPS work, esp. in the higher latitudes.From www.spaceweather.comGEOMAGNETIC STORM UPDATE--IT'S BACK: Geomagnetic activit...

If you are interested in a science project, collect a six to eight hour session with the rover under canopy. Set your base and any other static rece...

Nate The Surveyor, post: 445593, member: 291 wrote: [MEDIA=youtube]Wxk1cyYJe-o[/MEDIA]Enjoy!!! Thanks, Nate.A great example showing the progression f...

Hack, post: 445530, member: 708 wrote: Usually I'll use 4 or 5 pages including my deed and make an alphabet of the scrivener's handwriting. Excellent...

Run, Dave, Run! "NOAA forecasters say strong G3-class geomagnetic storms are possible on Sept. 8th when the inbound CME arrives." Click on the photo...