Blavet {transfR}R Documentation

Blavet French river dataset

Description

'Blavet' is a dataset of the Blavet French river in Brittany peninsula and two neighouring rivers (Claie and Coët-Organ). It contains all the necessary inputs to test the package and perform discharge prediction at the outlet of six catchments:

Hourly discharge observations of the six catchments are provided for one hydrological year, from 2013-10-01 to 2014-10-01. It has been extracted from the French HYDRO database (http://www.hydro.eaufrance.fr). Discharge observations for the Coët-Dan river is provided by the AgrHys Environment Research Observatories (Fovet et al. 2018) managed by INRAE (https://www6.inrae.fr/ore_agrhys_eng). Catchment delineations and respective maps of hydraulic length have been extracted from a digital elevation model of 100 m resolution.

Format

'Blavet' is a list of three objects:

Source

http://www.hydro.eaufrance.fr

https://www6.inrae.fr/ore_agrhys_eng

http://bdtopage.eaufrance.fr

References

Fovet O, Ruiz L, Gruau G, Akkal N, Aquilina L, Busnot S, Dupas R, Durand P, Faucheux M, Fauvel Y, Fléchard C, Gilliet N, Grimaldi C, Hamon Y, Jaffrezic A, Jeanneau L, Labasque T, Henaff GL, Mérot P, Molénat J, Petitjean P, Pierson-Wickmann A, Squividant H, Viaud V, Walter C, Gascuel-Odoux C (2018). “AgrHyS: An Observatory of Response Times in Agro-Hydro Systems.” Vadose Zone Journal, 17(1), 180066. doi:10.2136/vzj2018.04.0066.

Examples

## Not run: 
# Working directory
wd <- tempdir(check = TRUE)
# Define a bbox that will encompass the catchments of the study area
blavet_bbox <- st_bbox(c(xmin = -3.3, xmax = -2.7, ymax = 48.11, ymin = 47.77),
                           crs = st_crs(4326))
# Download a French Topage river network within the bbox using the "Sandre - Eau France" WFS
download.file(url = paste0("https://services.sandre.eaufrance.fr/geo/topage2019",
                     "?request=GetFeature&service=WFS&version=2.0.0",
                     "&typeName=CoursEau_FXX_Topage2019",
                     "&outputFormat=application/json;
                     paste0(blavet_bbox[c("ymin","xmin","ymax","xmax")],
                            collapse=",")),
              destfile = file.path(wd,"CoursEau_FXX_Topage2019.geojson"))
CoursEau_Topage2019 <- st_read(dsn = file.path(wd,"CoursEau_FXX_Topage2019.geojson"),
                               drivers = "GeoJSON", stringsAsFactors = FALSE, quiet = FALSE,
                               query = "SELECT gid FROM CoursEau_FXX_Topage2019")

## End(Not run)

[Package transfR version 1.0.11 Index]