Provides Comprehensive, Up-to-Date Guidance on Spatial Data Accuracy

As modern surveying, mapping, and geospatial technologies continue to evolve, the need for precise data adjustment and error analysis has never been greater. Adjustment Computations: Spatial Data Analysis, Seventh Edition, remains the definitive guide to understanding, applying, and mastering least squares and related techniques that ensure the accuracy of spatial datasets.

This updated edition integrates advances in spatial technologies, with new chapters covering laser scanning, point cloud processing, and parametric model estimation. Updated discussions of ASPRS standards, NSRS updates, and current computational tools reflect the latest professional practices and technologies. The text maintains its clear, pedagogical structure with concise chapters, worked examples, and practical software applications. Providing the analytical tools to deliver high-quality spatial data for diverse applications, this book:

• Includes coverage of laser scanning and its errors, point cloud shape fitting, GNSS networks, coordinate transformations, and parametric modeling
• Incorporates updated standards from ASPRS and the National Spatial Reference System (NSRS)
• Provides access to companion software, MathCAD worksheets, and video lessons for hands-on problem solving
• Balances rigorous mathematics with accessible explanations and real-world surveying applications
• Features real-world case studies of infrastructure documentation, construction, and environmental monitoring

Ideal for undergraduate and graduate courses in surveying, geomatics, and geospatial analysis, Adjustment Computations: Spatial Data Analysis, Seventh Edition, supports curricula in civil engineering, geosciences, and GIS programs. It is also a useful reference for professional surveyors and geospatial analysts seeking to enhance data accuracy and reliability.

CHARLES D. GHILANI is a Professor Emeritus of Engineering at Pennsylvania State University and an award-winning authority on surveying and geodesy.

DIMITRIOS BOLKAS is an Associate Professor of Surveying Engineering at Pennsylvania State University, specializing in laser scanning and GNSS networks.

MICHAEL J. OLSEN is the CH2M Hill Professor of Civil Engineering at Oregon State University and a leader in geomatics and 3D laser scanning applications.