hadex3_bbox: Download HadEX3 data on climate extremes for a bounding box

In varunayan: Download and Process 'ERA5', IMD, 'HadEX3' and 'CRU TS' Data

Download HadEX3 data on climate extremes for a bounding box

Description

Downloads HadEX3 data on ETCCDI climate extremes and filters the data to a geographic bounding box. The data is for 1901-2018 at a resolution of 1.25 x 1.875 degrees.

Usage

HadEX3Bbox(...)

hadex3_bbox(
  index,
  start_year,
  end_year,
  north,
  south,
  east,
  west,
  frequency = "annual",
  baseline = "61-90",
  output_dir = tempdir(),
  use_cache = TRUE
)

Arguments

...	Arguments that the aliases send to the primary function.
index	ETCCDI index name (e.g. "TXx", "Rx1day"). See list_hadex3_indices().
start_year	Start year (1901-2018).
end_year	End year (1901-2018).
north	North boundary (latitude).
south	South boundary (latitude).
east	East boundary (longitude).
west	West boundary (longitude).
frequency	Temporal frequency: "annual" or "monthly" (default: "annual").
baseline	Reference period for the indices that use percentiles: "61-90" (default) or "81-10". This argument applies only to the annual frequency.
output_dir	Directory for temporary files (default: tempdir()).
use_cache	If TRUE, use the data in the cache (default: TRUE).

Value

A data.frame with the columns: year (and month for monthly data), latitude, longitude, value, index.

Examples

# Annual maximum of the daily maximum temperature for Europe, 1981-2010
data <- hadex3_bbox(
  index = "TXx",
  start_year = 1981, end_year = 2010,
  north = 71, south = 36, east = 40, west = -10
)

# Monthly Rx1day for India
data <- hadex3_bbox(
  index = "Rx1day",
  start_year = 2000, end_year = 2018,
  north = 35, south = 8, east = 97, west = 68,
  frequency = "monthly"
)

varunayan documentation built on Oct. 30, 2026, 1:07 a.m.