A set of functions designed to calculate the standardised precipitation and standardised precipitation evapotranspiration indices using NASA POWER data as described in Blain et al. (2023) <doi:10.2139/ssrn.4442843>. These indices are calculated using a reference data source. The functions verify if the indices' estimates meet the assumption of normality and how well NASA POWER estimates represent real-world data. Indices are calculated in a routine mode. Potential evapotranspiration amounts and the difference between rainfall and potential evapotranspiration are also calculated. The functions adopt a basic time scale that splits each month into four periods. Days 1 to 7, days 8 to 14, days 15 to 21, and days 22 to 28, 29, 30, or 31, where 'TS=4' corresponds to a 1-month length moving window (calculated 4 times per month) and 'TS=48' corresponds to a 12-month length moving window (calculated 4 times per month).
Version: 1.0.0 Depends: R (≥ 3.1.0) Imports: graphics, lmom, lubridate, nasapower, stats Suggests: knitr, rmarkdown, testthat (≥ 3.0.0), vcr (≥ 0.6.0), vdiffr (≥ 1.0.0) Published: 2024-01-15 DOI: 10.32614/CRAN.package.PowerSDI Author: Gabriel Constantino Blain [aut, cre], Graciela R. Sobierajski [aut], Leticia L. Martins [aut], Adam H. Sparks [aut] Maintainer: Gabriel Constantino Blain <gabriel.blain at sp.gov.br> BugReports: https://github.com/gabrielblain/PowerSDI/issues License: MIT + file LICENSE URL: https://github.com/gabrielblain/PowerSDI NeedsCompilation: no Language: en-GB Citation: PowerSDI citation info Materials: README NEWS In views: Hydrology CRAN checks: PowerSDI results Documentation: Downloads: Reverse dependencies: Linking:Please use the canonical form https://CRAN.R-project.org/package=PowerSDI to link to this page.
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