View source for Trend surface analysis

{{Short description|Mathematical technique}}
[[File:RSS troposphere stratosphere trend.png|thumb|Worldwide temperature trend analysis]]'''Trend surface analysis''' is a mathematical technique used in environmental sciences (archeology, geology, soil science, etc.). Trend surface analysis (also called trend surface mapping) is a method based on low-order [[Polynomial|polynomials]] of spatial coordinates for estimating a regular grid of points from scattered observations. For example, from archeological finds or from [[soil survey]].<ref>{{Citation |last=Agterberg |first=Frits P. |title=Trend Surface Analysis |date=1984 |work=Spatial Statistics and Models |pages=147–171 |editor-last=Gaile |editor-first=Gary L. |url=http://link.springer.com/10.1007/978-94-017-3048-8_8 |access-date=2024-04-20 |place=Dordrecht |publisher=Springer Netherlands |language=en |doi=10.1007/978-94-017-3048-8_8 |isbn=978-90-481-8385-2 |editor2-last=Willmott |editor2-first=Cort J.}}</ref>

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[[Category:Methods in archaeology]]
[[Category:Multivariate interpolation]]

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