R Observatory: Metrics for floodflow version 0.1.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

floodflow

0.1.1

Map-First Climate-Informed Flood Assessment for Data-Scarce Basins

0packages depend

151downloads / year

90.0%test coverage

13/13checks pass

Overview

About

Maintained by George OwusuFirst published 2026-07-291 releasesCRAN page ↗GitHub ↗

A reproducible, map-oriented workflow for flood hazard assessment that chains rainfall extreme value analysis, rainfall-runoff simulation, terrain-based flow routing and water-depth estimation into a single pipeline. A stationary-versus-nonstationary test for changing rainfall extremes is built in, and any flood scenario can be produced for a present-day or a climate-adjusted design event. Defaults target settings with sparse gauge networks, using satellite or reanalysis rainfall, temperature-based potential evapotranspiration and regional pooling of short records. Heavy modelling engines are wrapped rather than reimplemented so that the core stays lightweight. Methods follow established hydrology, including the generalized extreme value distribution for rainfall maxima (Coles, 2001, doi:10.1007/978-1-4471-3675-0) and Manning's equation for open-channel flow.

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("floodflow", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("gowusu/floodflow")

Development version from gowusu/floodflow. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-floodflow

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-floodflow

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-floodflow

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 2.5 min · r-release-macos-x86_64

Code health

Yes

Tests · ratio 0.45

90.0%

Coverage · measured lines

100%

Documentation · exports

1

Dependencies · direct

Check history

OK2026-08-05
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
10 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-07-30
5 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 95%
Return-value docs: 100%
References docs: 29%

Downloads

151

CRAN downloads in the past year

Rank #24,601 · ~0/day · ~13/mo

Releases R versions

Daily download trend is not available in this view yet.

15130 days

15190 days

1511 year

Compare downloads with other packages →

Also on3 r2u10 autocran

Repository

GitHub ↗ gowusu/floodflow

1Stars

1Forks

0Open issues

0Open PRs

0Releases

18Commits

1Contributors

climate-changecranevapotranspirationextreme-value-analysisfloodflood-hazardflood-modelingflood-risk

18 commits · Last activity 2026-07-26 · -50% stars, 30d

Stars over time

2026-07-30 · 22026-07-31 · 1

Repository practices

Upstream repositoryBeta

4 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/gowusu/floodflow on 2026-08-16.

Continuous integration (1)

GitHub Actions

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Git structural (1)

.gitattributes

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

14 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.1

Imports (1)

stats

LinkingTo (0)

none

Suggests (14)

terra sf extRemes airGR whitebox tmap leaflet leafsync ranger lmomRFA shiny testthat knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (1)

Maintainer (1)

George Owusu

Author, Maintainer

Authors (1)

George Owusu

Author, Maintainer

Package Timeline

1 release. R releases are shown for context.

0.1.1Latest
2026-07-29 · current release
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-07-29
Total releases: 1 / 1 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.1
Download size: 77 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("floodflow")

Format

Owusu, G. (2026). floodflow: Map-First Climate-Informed Flood Assessment for Data-Scarce Basins (Version 0.1.1) [Computer software]. https://doi.org/10.32614/CRAN.package.floodflow

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for floodflow version 0.1.1 [Data set]. HJJB, LLC. Data release v2026-08-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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