Content tagged "global positioning system"

What is geospatial technology?

Science for Youth Updated: May 27, 2015

Geospatial technology refers to equipment used to measure and analyze Earth's land and features. Systems such as Global Positioning System (GPS) and...

What is the difference between GPS and GIS?

Science for Youth Updated: May 27, 2015

GPS stands for Global Positioning System. GPS uses satellites that orbit Earth to send information to GPS receivers that are on the ground. The information...

What is a satellite?

Science for Youth Updated: May 27, 2015

A man-made satellite is a machine that is launched into space. It orbits or moves around Earth or another body in space. There are thousands of satellites...

Downloading GPS Data Using DNRGPS

Geospatial Technology Updated: December 10, 2014

John McGee, Virginia Tech  DNR Garmin was developed as an easy-to-use “point and click” software application that allows you to manage, manipulate, and save...

Topography and Understanding Topographic Maps

Geospatial Technology Updated: December 08, 2014

 Among the many mapping tools available, the most commonly used is the topographic map. Topography is defined as the relief (relative elevations) of a...

What is the difference between a recreational grade GPS, a mapping grade GPS, and a survey grade GPS?

Geospatial Technology Updated: October 03, 2014

1. Recreational grade GPS receivers are sold at most box stores and at many sporting goods and camping stores. They are also available widely through...

Investigating Wildlife Movements with GPS Collars

Geospatial Technology Updated: June 16, 2014

GPS collars are helping wildlife biologists understand how animals move and use the landscape. Biologists are able to capture wildlife and fit them...

Geocaching: Retrieving / Grabbing a Trackable Item (Geocoin or Travelbug)

Geospatial Technology Updated: October 16, 2013

If someone has mailed/given you a trackable item, or if you have found a trackable item, you will need to virtually “grab it” from its current holder (owner)...

DNRGPS Extension User Guide

Geospatial Technology Updated: October 15, 2013

 DNRGPS is an easy-to-use software application designed to manage, manipulate, and save GPS and GNSS information for use in GIS software programs and...

Geocaching - Getting Started

Geospatial Technology Updated: October 15, 2013

What is Geocaching?Geocaching is a recreational activity that involves hiding and seeking objects, or "caches," usually with the aid of a global positioning...

Selecting Handheld GPS Units

Geospatial Technology Updated: October 15, 2013

Selecting Handheld GPS UnitsAE-1269 (Revised), October 2007John Nowatzki, Extension Geospatial SpecialistChristopher Daigle, Mechanical Engineering...

What is mobile GIS?

Geospatial Technology Updated: September 18, 2013

Mobile GIS is taking Geographic Information Systems (GIS) out of the office and into the field. A mobile GIS allows folks out in the field to capture, store,...

Novel Ground Truth Method for Crop Fields Combining a Global Positioning System (GPS) and a Handheld Geographic Information System (HGIS)

Geospatial Technology Updated: September 18, 2013

For the state of Arizona, Geographic Information System (GIS) map templates are created on an annual basis depicting the location of all potential crop...

GPS Applications in Crop Production

Geospatial Technology Updated: September 28, 2011

GPS and Agriculture

Learning Lesson - Understanding Accuracy and Precision with GPS (Garmin Map60cx)

Geospatial Technology Updated: September 27, 2011

General GPS Lesson – Exploring the Accuracy of Recreational Grade GPS UnitsSummary: GPS accuracy and precision is always a topic of interest. This exercise...

How to Geocache

Geospatial Technology Updated: September 27, 2011

You've decided to take the plunge and begin geocaching. Congratulations, you are ready for a fun adventure. This guide is designed to be used with...

The Virginia 4-H Geocoin Adventure

Geospatial Technology Updated: September 27, 2011

The Virginia 4-H Geocoin AdventureThe Virginia 4-H Geocoin Adventure is the result of a collaborative effort between Virginia 4-H, the Virginia Geospatial...

Geocaching: How to Drop Off a Trackable Item (Geocoin or Travelbug)

Geospatial Technology Updated: September 27, 2011

Geocaching often involves items in a cache that are considered trackable. These items have alpha-numeric codes that are located on the item. Most trackable...

Safety in the Field - GPS Data Collection

Geospatial Technology Updated: September 27, 2011

Most people overlook simple safety considerations when doing field research and data collection. However, a few simple practices can make all the difference....

Data Collection for Woody Vegetation

Geospatial Technology Updated: January 16, 2008

Collecting GPS Points in Woody Vegetation Data collection for woody species presents difficulties because of canopy density and cover. The easiest position...

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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.