hi good afternoon my qustion is what is the difference between UTM AND wgs1984.

This Content Originally Published by a land surveyor to Land Surveyors United Network

Views: 142

See Your Saved Posts Timeline

☇ Reply to this

Replies to This Discussion

Basically, WGS 84 is a single map projection represented in degrees, while UTM is like a local system, that divides the earth into 60 zones, 6 degrees of longitude each. 

QGIS Docs has some great reference material on the subject you can read here: https://docs.qgis.org/testing/en/docs/gentle_gis_introduction/coord...

To quickly answer your question generally:

WGS 84 is a Geographic Coordinate System using angular units, a prime meridian, and spherical (earth like) datum. Geographic Coordinate Systems are excellent at representing point locations. As accurate as your measuring system is. However calculating distance and areas are complicated, and when viewed on a flat map like surface can result in greatly distorted figures and graphical representation.

UTM is a Projected Coordinate System with a defined 2D flat surface datum divided into a grid using linear measurements feet or meters for instance. Calculating distance is easy, and areas are quickly calculated and graphically represented realistically. The weakness of a projected coordinate system is that no point is truly located accurately, even if the error introduced by projection is extremely low and below allowable thresholds.

RSS

Where Thousands of Professional Land Surveyors, Students of Surveying and Educators are United through Collaborative Knowledge and Purpose.

Tools,Apps and Quick Guides

DEDICATED TO THE MEMORY OF SKIP FARROW (1953-2015)


Help With Survey Equipment

Social Support For Equipment

Surveying Video Categories

Surveying Photo Categories

United States Hub Forums

International Surveyor Hub Forums

Resources for Company Owners

Land Surveyor Social Media

Surveyor Resources Collections

Getting Started & Newsletter

New Equipment Added Daily

Trimble Nomad 6GB GPS GNSS Robotics Total Station Data Collector w/ Survey Pro

$200.00 (0 Bids)
End Date: Saturday Oct-27-2018 14:31:29 PDT
Buy It Now for only: $300.00
Buy It Now | Bid now | Add to watch list

Trimble Nomad GPS GNSS Robotics Total Station Data Collector see detail

$234.00 (0 Bids)
End Date: Wednesday Oct-24-2018 15:56:26 PDT
Bid now | Add to watch list

Trimble Nomad GPS GNSS Robotics Total Station Data Collector w/ Survey Pro

$535.00
End Date: Thursday Nov-15-2018 7:54:55 PST
Buy It Now for only: $535.00
Buy It Now | Add to watch list

South NTS-355 Total Station Dual Display Transit w/ Charger, Battery and Case

$1,489.99
End Date: Saturday Nov-10-2018 9:24:24 PST
Buy It Now for only: $1,489.99
Buy It Now | Add to watch list

Topcon GTS-233W Total Station Transit w/ Case New Charger, Battery, Plumb bob

$2,599.99
End Date: Monday Oct-29-2018 13:03:44 PDT
Buy It Now for only: $2,599.99
Buy It Now | Add to watch list

Surveyor Birthdays

© 2018   © Created by Land Surveyors United   Powered by

Badges  |  Contact LSU  |  Privacy Policy  |  Terms of Service