About Amerisurv| Contact    
Magazine | Newsletter    
Flickr Photos | Advertise    
HomeNewsNewsletterAmerisurv DirectoryJobsStoreAuthorsHistoryArchivesBlogVideosEvents
 
advertisement


Subscriptions
Sponsored By

Software Reviews
Continuing Series
     RTN
An RTN expert provides everything you need to know about network-corrected real-time GNSS observations.
Click Here to begin the series,
or view the Article PDF's Here
76-PageFlip Compilation
of the entire series
Test Yourself

Got Answers?
Test your knowledge with NCEES-level questions.
  Start HERE
Meet the Authors
Check out our fine lineup of writers. Each an expert in his or her field.
Wow Factor
Sponsored By


Product Reviews
Partner Sites

machinecontrolonline 


lbszone.com

GISuser.com

GeoJobs.biz

GeoLearn

 

Spatial Media LLC properties

Associates

ASPRS

newsnow 

Home arrow Archives   The American Surveyor     

The 53rd CGSIC Print E-mail
Written by Marc Cheves, PS   
Friday, 27 September 2013

A 212Kb PDF of this article as it appeared in the magazine—complete with images—is available by clicking HERE

The 53rd Civil GPS Service Interface Committee (CGSIC) took place in Nashville September 16-17, 2013. In layman's terms, this is the meeting where the military side of the government meets the civilian side. The meeting has always been free and open to anybody. It is particularly valuable to precision users, surveyors included, who want to see where GPS is heading. This meeting was especially significant because September 16th marked the 30th anniversary of President Reagan's Presidential Directive on GPS availability after the Soviets shot down Korean Air Lines flight 007 carrying 269 passengers and crew.
Giovanni Sella from the National Geodetic Survey (NGS) reported that CORS will make the transition from GPS-only to GNSS (GPS+GLONASS) on October 1. OPUS Projects is close to release. (Watch for a great article about it in an upcoming issue, complete with a step-by-step video.) CORS now has nearly 2,000 stations, but with some exceptions, new stations are only being added if they are at least 70 kilometers away from an existing station.

The constellation continues to perform incredibly well, with 31 healthy satellites on orbit, with four more in residual status, and one in test status. (Only 24 are needed to consider GPS in full operational capability.) More signals are coming: 11 satellites are currently broadcasting L2C; four are broadcasting L5; and the first GPS III satellite in 2015 will broadcast L1C. At the 2012 meeting, the buzz was all about LightSquared. This year it was evident that the GPS community is still wary of threats against the GPS spectrum. The constellation is somewhat dogged by its own success, as future launch plans are dependent on forecasts of existing satellite life. The Air Force has even considered the simultaneous launch of two satellites as a way to cut costs.

In one of the many interesting presentations, Rick Hamilton, CGSIC Executive Secretariat of the U.S. Coast Guard Navigation Center, made the case for requiring the use of the National Grid—already on many map products, including FEMA's—for catastrophic incident search and rescue (SAR) operations. Hamilton said the 911 system is based on addresses, and in floods or hurricanes, when landmarks and signs are washed away or covered, rescuers lose reference points. It stands to reason that, like surveyors, ground-based rescuers can benefit from the same knowledge of lat-long or geographic coordinates. Hamilton also spoke about routing mistakes that had been made by confusing degrees minutes and seconds with degrees and decimal minutes, and stressed the need to speak the words "degrees", "minutes", and "decimal".

A 2011 report estimated nearly $70 billion in direct economic benefits from GPS, and more than 3.3 million jobs that rely on GPS technology. Unfortunately, many familiar faces were missing from this year's meeting, due to the current government sequester and lack of funding for travel. For those who were able to attend, as always, meetings like this and the cross-pollinating interface they provide is what make possible the improvements in the marvelous GPS utility we enjoy.

Marc Cheves is editor of the magazine.

A 212Kb PDF of this article as it appeared in the magazine—complete with images—is available by clicking HERE

 
< Prev   Next >

 American Surveyor Recent Articles
Editorial 
Thought Leader: Land is Too Important to Be Left to Land Specialists
A while back I was searching the Internet for an old treatise on land titles. A Google query yielded a book published in 1914. The author was Charles Claudius Kagey and the book was titled "Land Survey and Land Titles, a book for boys and girls, a reference volume for property owners, a text ....
Read the Article
Jason E. Foose, PS 
Decided Guidance: Wacker vs. Price - Irony in Sevenfold
This month's case takes us to Phoenix, Arizona in 1950. The Arizona Supreme Court went all guns-a-blazin' in Wacker vs. Price (216 P.2d 707 (Ariz. 1950)). Maybe it's just me, but I'm sensing plenty of irony and have taken license to point it out along the way. I like what the Court did with this case ....
Read the Article
Allen E. Cheves 
Around the Bend - A Visit to Carlson Software
The Ohio River is one of America's greatest, running near 1,000 miles between Pittsburgh and the Mighty Mississippi. Much of the coal and other products that fueled our nation's industrial expansion flowed between the shores of this maritime ....
Read the Article
Lee Lovell, PS 
Surveying & Mapping Economics Part 3 - Customers & Services
This article continues an inquiry into the economic conditions of the Surveying and Mapping industry (NAICS 541370) using data from the U.S. Census Bureau. This time we will look at customers and services. The data comes from the Economic Census conducted every 5 years on American ....
Read the Article
Jerry Penry, PS 
True Elevation: Black Elk Peak
Black Elk Peak, located in the Black Hills region of South Dakota, is the state's highest natural point. It is frequently referred to as the highest summit in the United States east of the Rocky Mountains. Two other peaks, Guadalupe Peak in Texas and ....
Read the Article
Larry Trojak 
Bringing The Goods - Mobile Scanning an Integral Component
When Jim Smith, Jerrad Burns and Charlie Patton left the Memphis division of a major construction company in 2015, they took with them the knowledge of how to get even the most complex jobs done and what equipment could best serve them in making that happen. So when they joined West ....
Read the Article
 
Lee Lovell, PS 
Test Yourself 41: Integers, Integers, and Integers
ABF is a 5:12:13 triangle, ACF is a 48:55:73 triangle, ADF is a 3:4:5 triangle, and AEF is a 7:24:25 triangle, all with integer sides and inscribed in a semi-circle. What are the lengths of BC, CD, and DE? ....
Read the Article
Wendy Lathrop, PS, CFM 
Vantage Point: Sunset or Sunrise?
While we often think of legislated government programs as static, they do change over time. Such evolution and opportunity for transformation are part of the dialogue in reauthorizing these programs. Every so many years there is a sunset on each government program, and this September is the ....
Read the Article
 

deliciousrssnewsletterlinkedinfacebooktwitter

Amerisurv Exclusive Online-only Article ticker
Featured Amerisurv Events
List Your Event Here
please
contact Amerisurv


Google
 
AMERISURV TOP NEWS

JAVAD Intros
Spoofer Buster

GOT NEWS? Send To
press [at] amerisurv.com
Online Internet Content

Sponsor


News Feeds

 
Subscribe to Amerisurv news & updates via RSS or get our Feedburn
xml feed

Need Help? See this RSS Tutorial

Historic Maps
Careers

post a job
Reach our audience of Professional land surveyors and Geo-Technology professionals with your GeoJobs career ad. Feel free to contact us if you need additional information.

 

Social Bookmarks

Amerisurv on Facebook 

Amerisurv LinkedIn Group 

Amerisurv Flickr Photos 

Amerisurv videos on YouTube 

twitter

 




The American Surveyor © All rights reserved / Privacy Statement
Spatial Media LLC
905 W 7th St #331
Frederick MD 21701
301-620-0784
301-695-1538 - fax