Coordinate system design Coordinate system design
Design and select coordinate systems best suited to the needs of the client. For areas where “ground” coordinates are desired, rigorously defined Low Distortion Projections can be designed that are compatible with a wide range of software packages.
Geospatial data standards Geospatial data standards
We develop geospatial data standards customized to the particular needs of the client. This includes assistance in developing technically correct contractual scope for spatial data products (such as aerial mapping deliverables) with regard to accuracy, format, documentation, and metadata.
GNSS Data Processing GNSS Data Processing
Plan, coordinate, and process Global Navigation Satellite System (GNSS) data to establish accurate and reliable survey control consistent with the National Spatial Reference System. Methods are based on redundant observation and rigorous least-squares adjustment utilizing both post-processed and real-time data. Includes formatting, documentation, and submittal to the National Geodetic Survey (NGS) for publication
Coordinate transformations Coordinate transformations
At Geographic Data Support, we assist in performing and selecting coordinate transformations appropriate for changing datasets from one coordinate system to another, which is especially useful for data with poorly or undefined coordinates.
Spatial accuracy assesment Spatial accuracy assesment
We perform spatial accuracy assessment of datasets (such as aerial imagery and topographic surface models), including comparison of precision and accuracy to determine the presence of bias. This includes the performance of calculations and/or fieldwork, and the numerical assessments can be done per FGDC (or other) standards. For topographic surface models, a very large number of well-distributed spot elevations can be used both to assess the model and remove bias from the final delivered model.
Control Forensics Survey Analysis Control Forensics Survey Analysis
Analyze control forensics surveys for the purpose of determining existing coordinate system accuracy and characteristics, including update and densification of existing control networks.

GIS & Survey Data Integration

Coordinate system definition Coordinate system definition
Analyze control forensics surveys for the purpose of determining existing coordinate system accuracy and characteristics, including update and densification of existing control networks.
Dataset accuracy assessment Dataset accuracy assessment
Coordinate system designAccuracy assessments and georeferencing of GIS and survey datasets. This includes coordination with the provider of Real Time Network (RTN) positioning services to ensure coordinate system consistency.
Metadata Metadata
Analyze control forensics surveys for the purpose of determining existing coordinate system accuracy and characteristics, including update and densification of existing control networks.
Importing data into GIS Importing data into GIS
Coordinate system designAssist in developing workflows to facilitate direct import of survey-grade spatial data into a GIS.

Education & Training

Seminars and workshops Seminars and workshops
Coordinate system design and deliver seminars and workshops to educate users on geodetic issues relevant to their work. These can be tailored to suit particular audiences, including surveyors and GIS professionals.
Software and equipment training Software and equipment training
Coordinate system designProvide training on “best practices” for the use of GIS and surveying software packages, as well as survey and mapping equipment. Although not all vendor software and equipment types can be covered in detail, many general concepts can be applied to most products.