PowerSDI

PowerSDI-package

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) tools:::Rd_expr_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).

internal

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).

Gabriel Constantino Blain

Calculate Standardised Drought Indices Using NASA POWER Data

Graciela R. Sobierajski

Leticia L. Martins

Adam H. Sparks

PowerSDI-package function

Maintainer: Gabriel Constantino Blain <a href="/link/gabriel.blain%40sp.gov.br?package=PowerSDI&version=1.0.0" data-mini-rdoc="PowerSDI::gabriel.blain@sp.gov.br">gabriel.blain@sp.gov.br</a> (<a href="https://orcid.org/0000-0001-8832-7734">ORCID</a>)
Authors:<ul>
<li>Graciela R. Sobierajski (<a href="https://orcid.org/0000-0002-7211-9268">ORCID</a>)</li>
<li>Leticia L. Martins (<a href="https://orcid.org/0000-0002-0299-3005">ORCID</a>)</li>
<li>Adam H. Sparks <a href="/link/adamhsparks%40gmail.com?package=PowerSDI&version=1.0.0" data-mini-rdoc="PowerSDI::adamhsparks@gmail.com">adamhsparks@gmail.com</a> (<a href="https://orcid.org/0000-0002-0061-8359">ORCID</a>)</li>
</ul>

Author

PowerSDI: Calculate Standardised Drought Indices Using NASA POWER Data — PowerSDI-package

Maintainer: Gabriel Constantino Blain <a href='mailto:gabriel.blain@sp.gov.br'>gabriel.blain@sp.gov.br</a> (<a href='https://orcid.org/0000-0001-8832-7734'>ORCID</a>)
Authors:<ul>
<li>Graciela R. Sobierajski (<a href='https://orcid.org/0000-0002-7211-9268'>ORCID</a>)</li>
<li>Leticia L. Martins (<a href='https://orcid.org/0000-0002-0299-3005'>ORCID</a>)</li>
<li>Adam H. Sparks <a href='mailto:adamhsparks@gmail.com'>adamhsparks@gmail.com</a> (<a href='https://orcid.org/0000-0002-0061-8359'>ORCID</a>)</li>
</ul>

PowerSDI-package: PowerSDI: Calculate Standardised Drought Indices Using NASA POWER Data

Description

Arguments

Author

See Also