R Observatory: Metrics for floodflow version 0.1.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

floodflow

0.1.1Package record

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

0packages depend

693downloads / year

90.0%test coverage

13/13flavors OK

Overview

About

Maintained by George OwusuCRAN page ↗GitHub ↗Website ↗Issues ↗

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. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

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

Status changes

OK13 OKNow
OK12 OK2026-08-05
NOTE10 OK, 1 NOTE2026-08-01
OK5 OK2026-07-30

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.1.1

README· In the repository, left out of the releaseVignettesYes · 2 · dynamicNEWSYes · 67% structured · does not mention 0.1.1Citation fileNoWebsiteYes · pkgdown

The repository also keeps web-only articles.

Help pages: 31 (3 internal)includes a package overview page
Examples that run: 100%28 run in a plain check
Exported functions with examples: 100%
Documented parameters: 95%
Return-value docs: 100%
Help pages citing references: 29%

Vignettes (2)

Getting started with floodflow HTML
Mapping with floodflow HTML

How these are measured

Downloads

693

CRAN downloads in the past year

Rank #18,628 · ~2/day · ~58/mo

Releases R versions

Daily download trend is not available in this view yet.

27830 days

69390 days

6931 year

Compare downloads with other packages →

Also on13 r2u2 autocran

How downloads are counted

Repository

gowusu/floodflow ↗Account: gowusu

3Stars

3Forks

0Open issues

0Open PRs

0Releases

18Commits

1Commit identities

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

18 commits · Last activity 2026-07-26 · +50% stars, 30d · Default branch at 0.2.0, ahead of CRAN 0.1.1 (checked 2026-10-11)

Responsiveness

not measured

Stars over time

2026-07-30 · 22026-10-04 · 3

How these are measured

PracticesBeta

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

Checks run against github.com/gowusu/floodflow on 2026-10-11.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Docs source (3)

pkgdown

GitHub Pages site last deployed 2026-07-26 · The repository has a site deploy workflow

pkgdown site last built 2026-07-26, before release 0.1.1 (2026-07-29)

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Git structural (1)

.gitattributes

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

14 external dependencies (excludes base and recommended)

Installing floodflow adds no packages beyond those that come with R.

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.

How these are counted

Code & Tests

People & History

People (1)

George Owusu

Author, Maintainer since 0.1.1 (2026)

Releases (1)

0.1.1Latest
record
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

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 package has no citation file, so citation() returns this entry built from DESCRIPTION.

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 v2026-10-19. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-19, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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