Monday, December 20, 2010

Vol 7 No 9 Articles Posted

Editorial: Winds of Change
The Windy City lived up to its name during a recent visit to Chicago where we attended a press event hosted by LizardTech, the leader in file compression. Those of you who deal with aerial images--for example, as backdrops for your land development maps--have undoubtedly encountered the company's popular multi-resolution seamless image database file format, MrSID, commonly pronounced ....Read the Article
CPS-98—An Odd Geodetic Survey Crew
The following paragraph is found on page 9 of the official history of the United States Coast and Geodetic Survey in World War II: "To provide the additional staff needed, and to replace employees who joined the armed forces, many changes in personnel were made during the war. Since very few experienced persons were available for employment ....Read the Article
Laser Scanning Mushpot Cave
The concept for this project was hatched in the brilliance-inducing state one achieves by moving rapidly between the dim, flickering ambiance of a GIS computer screen and the dim, flickering ambiance of a bat-filled lava tube cave, which were not dissimilar to the conditions in which I interned as a cartographic technician at the Lava Beds National ....Read the Article
Snay Pearson
Coping with Tectonic Motion
Using GPS technology, surveyors can easily measure positional coordinates with centimeter-level accuracy. As a consequence of this capability, surveyors are now exposed to coordinates that change over time due to plate tectonics. In the contiguous United States (CONUS), the fastest changes in coordinates occur in California, because the state lies almost entirely within the boundary ... Read the Article
Rendezvous 2010 Recap
Rendezvous, in the plural sense, are more than meetings--they are gatherings and collections of brand spanking new perspectives on ancient, old and archaic facts in surveying history. Over the past 14 years the Surveyors Historical Society has held memorable meetings in memorable settings, studying many varied and memorable ...Read the Article
Vantage Point: Crawlspaces and Basements
Surveyors have been having trouble describing buildings for the National Flood Insurance Program (NFIP) since time immemorial, or at least since the introduction of building diagrams to categorize general construction techniques. It seemed that every structure we encountered in the field fell between the cracks in terms of conforming to one or another of the proffered examples. The most recent ...Read the Article
Real Time GNSS Network in New Mexico
Think RTK without a base station and you have a Real Time Network (RTN). No more shuffling through datasheets to find a nearby control point or doing recon for a station with unobstructed sky visibility and clear line of sight to the jobsite. No need to set up the unit in morning and tear it down in the evening. No more searching for an open frequency. Just get out of your vehicle and start surveying ....Read the Article
Surveyors Report: It Started at the Fair
On the opening day of the 2010 State Fair, the Missouri Society of Professional Surveyors started a Height Modernization Survey. This is a volunteer effort across the state with private surveyors donating their time and resources. Public surveyors from state and federal agencies also take part. We started the survey immediately following Governor Jay Nixon's official opening of the fair when he ...
Read the Comments