Journal of soil science and plant nutrition
versión On-line ISSN 0718-9516
MORALES-SALINAS, L et al. Simple linear algorithm to estimate the space-time variability of precipitable water in the Araucanía Region, Chile. J. Soil Sci. Plant Nutr. [online]. 2012, vol.12, n.2, pp. 295-302. ISSN 0718-9516. http://dx.doi.org/10.4067/S0718-95162012000200009.
This work proposes a linear algorithm which relates precipitable water (PW) with altitude and distance from the coast, on a regional scale. For precipitable water, the ERA-Interim (ECMWF) database for the period 1989-2010 was used, while a digital elevation model was used for the geographical variables. The results obtained indicate statistical significance between the two variables (p< 0.01), with a confidence level of 99%. The model makes it possible to describe the mean monthly space-time variability of precipitable water, stratifying the study area into clearly differentiated zones.
Palabras clave : linear algorithm; precipitable water; digital elevation model.