Original Research
The construction of a data point concentration dependent weight function for interpolation to rainfall grid fields
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie | Vol 15, No 4 | a650 |
DOI: https://doi.org/10.4102/satnt.v15i4.650
| © 1996 C. J. de W. Rautenbach
| This work is licensed under CC Attribution 4.0
Submitted: 11 July 1996 | Published: 11 July 1996
Submitted: 11 July 1996 | Published: 11 July 1996
About the author(s)
C. J. de W. Rautenbach,, South AfricaFull Text:
PDF (279KB)Abstract
Several interpolation algorithms have been developed to create homogeneous gridfields from heterogeneously distributed data. A shortcoming in most of these algorithms is the assumption that data field concentrations are fairly homogeneous over the grid field area. The method for constructing the weight functions as discussed here overcomes this problem by including a variable dependent on the concentration of data points in the weight function. A rainfall data field for South Africa is compiled by this algorithm. The concentration of climate stations in South Africa varies significantly.
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