ArcGIS Geostatistical Analyst is an ArcGIS extension that provides a powerful suite of tools for spatial data exploration and optimal surface generation using sophisticated methods. Geostatistical Analyst allows users to create a surface from data measurements occurring over an area where collecting information for every possible location would be impractical. From improving estimation of temperature values, assessing environmental risks, or predicting the existence of any geophysical element, ArcGIS Geostatistical Analyst gives anyone with spatial data the freedom to investigate, visualize, and create optimal surfaces. Geostatistical Analyst enables users to take advantage of these tools and techniques in a friendly and dynamic user interface.