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.
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.
Geospatial data standards
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. This can be done in conformance with current Federal Geographic Data Committee (FGDC) standards and with Federal Emergency Management Agency (FEMA) requirements.
Spatial accuracy assesment
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.
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 (i.e., “Bluebooking”).
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
Provide guidance in selection and use of appropriate coordinate systems definitions. This includes the troublesome issue of geodetic datums and their relationship to other datums.
Development of FGDC compliant metadata and feature-level (record-by-record) metadata with regard to spatial characteristics of the data (such as accuracy, coordinate systems, source, equipment used, persons in responsible charge, etc.).
Dataset accuracy assessment
Accuracy 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.
Importing data into GIS
Assist in developing workflows to facilitate direct import of survey-grade spatial data into a GIS.
Education & Training
Seminars and workshops
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
Provide 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.