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A two-dimensional interpolation function for irregularly-spaced data
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Source ACM Annual Conference/Annual Meeting archive
Proceedings of the 1968 23rd ACM national conference table of contents
Pages: 517 - 524  
Year of Publication: 1968
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ACM: Association for Computing Machinery
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ACM  New York, NY, USA
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Downloads (6 Weeks): 109,   Downloads (12 Months): 800,   Citation Count: 86
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ABSTRACT

In many fields using empirical areal data there arises a need for interpolating from irregularly-spaced data to produce a continuous surface. These irregularly-spaced locations, hence referred to as “data points,” may have diverse meanings: in meterology, weather observation stations; in geography, surveyed locations; in city and regional planning, centers of data-collection zones; in biology, observation locations. It is assumed that a unique number (such as rainfall in meteorology, or altitude in geography) is associated with each data point. In order to display these data in some type of contour map or perspective view, to compare them with data for the same region based on other data points, or to analyze them for extremes, gradients, or other purposes, it is extremely useful, if not essential, to define a continuous function fitting the given values exactly. Interpolated values over a fine grid may then be evaluated. In using such a function it is assumed that the original data are without error, or that compensation for error will be made after interpolation.


REFERENCES

Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

 
1
P SWITZER C M MOHR R E HEITMAN Statistical analyses of ocean terrain and contour plotting procedures Project Trident Report 1440464 Arthur D Little Inc April 1964
 
2
J F STEFFENSEN Interpolation Williams and Wilkins Baltimore 1927 Chap 19
 
3
I S BEREZIN N P ZHIDKOV Computing methods Addison-Wesley Publishing Company Inc Reading Mass 1965 Vol I Chap 2
 
4
C deBOOR Bicubic spline interpolation J Math and Phys 41 212-218 1962
 
5
A DOWNING The automatic construction of contour plots with applications to numerical analysis research Defense Documentation Center Report AD 649811 January 1966
 
6
W R TOBLER An interpolation algorithm for geographical data University of Michigan undated
 
7
W C KRUMBEIN Trend surface analysis of contour-type maps with irregular control point spacing J Geophys Re 64 823-834 1959
 
8
B E BENGTSSON S NORDBECK Construction of isarithms and isarithmic maps by computers University of Lund Sweden BIT 4 87-105 1964
 
9
A H SCHMIDT SYMAP A user's manual Tri-County Regional Planning Commission Lansing Michigan May 1966
 
10
User's reference manual for synagraphic computer mapping 'SYMAP' version V Laboratory for Computer Graphics Harvard Univ June 1968

CITED BY  87