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NOAA Datums Videos 2014

Differential correction with NA2011 and the newest epoch of NAD83

See our and Datums Basics and GPS Tutorials for the long-awaited results of months of rigorous testing and peer review

Trimble Positions software has replaced Trimble GPS Analyst in ArcGIS 10.1

ALASKA GPS and GIS users - check out Joel Cusick's Datum and Projections presentation Feb 2013

ArcGIS 10.1 - New and Cool improvements see Presentation from Melita Kennedy, ESRI : Projections and Datums Dec 2012

Home GIS Basics ESRI ArcGIS: Case Study
ESRI ArcGIS: Case Study PDF Print E-mail

This excerpt from the technical note in the Burning Man Monitoring Report demonstrates how ArcGIS was used in conjunction with digital data from Ricoh GPS-cameras.  In the field, the cameras were used to capture a GPS location (as a point, line or area) and record attributes about that location.  Geosptial Experts GPS-Photo Link was used to export that information to an the ESRI shapefile format.

The ESRI shapefile format was key to seamlessly migrate data from the GPS cameras and Trimble devices into ArcGIS for data management and analysis.  ArcGIS was used for spatial analysis, data management and mapmaking.  This allowed the team to monitor the event in real-time and create a long term record for the future planning.

1.  Display locations on city grid
The GPS camera data yielded a single shapefile (GIS layer) of point locations at which each photograph was taken.  Locations captured by the Trimble GPS units, yielded three distinct point, line and area GIS layers.  Team-collected data was combined with the Black Rock City infrastructure layer in ArcGIS. GPS-captured locations of photos and areas of concern could then be displayed in terms of the BRC grid.

2.  Query locations based on entered information
Data from the GPS-cameras and Trimble units contains not only location but also the attributes that were entered upon capture.  These 5 attributes entered serve as the basis for symbology, queries and spatial analysis in ArcGIS.

3. Perform spatial analysis
ArcGIS was used to summarize documented incidences by stipulation and status and to determine fence lengths, burn platform areas and other city infrastructure calculations.

4. Generate random locations for trash transects
Hawth’s tools was in ArcGIS, used to generate random points through 5 main zones in Black Rock City (Art, Residential, Walk-in Camping, Airport and Other) as shown on the map.   During the event, the Monitoring Team photographed the appearance at these locations on the chance that if an excessive amount of trash was found during later inspections, a record exists of that area’s appearance during the event.

Click here for an overview of the ArcGIS software suite.