Gridded 20-Year Parameterization of a Stochastic Weather Generator (CLIGEN) for South American and African Continents at 0.25 Arc Degree Resolution

CLImate GENerator (CLIGEN) is a stochastic weather generator that produces daily and sub-daily timeseries of weather variables. The resulting timeseries are statistically similar to observed timeseries considering various temporal scales and climate factors. This dataset consisting of CLIGEN inputs may be used to generate timeseries at any point in a 0.25 arc degree resolution grid covering South American and African continents. Estimated parameter values at each grid point are based on 20-year records taken from global climate datasets. Precipitation parameters are statistically downscaled from grid-scale to point-scale based on observations from globally distributed ground networks representing >10,000 stations. This dataset is intended for use in climate-related research in ungauged areas where observed climate records are unavailable.

The data are formatted as CLIGEN .par files, which are the only required input for CLIGEN. The files are separated into Africa and South America folders containing n=40936 and n=24588 files, respectively. The files are labeled according to grid point lat/lon coordinates (WGS84) in decimal degrees. The labeling convention uses 'N' and 'E' (north, east) to represent coordinates with a positive sign and 'S' and 'W' (south, west) to represent coordinates with a negative sign.


Resources in this dataset:


  • Resource Title: Grid Files.

    File Name: Grid Files.zip

    Resource Description: CLIGEN input files (.par) for the South America and Africa grid.


  • Resource Title: Summary Table.

    File Name: Summary Table.docx

    Resource Description: Summary table that lists CLIGEN parameters and basic dataset characteristics of the gridded parameterization.

Data and Resources

Field Value
accessLevel public
bureauCode {005:18}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier 10.15482/USDA.ADC/1524754
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2025-05-30
old-spatial {"type": "MultiPolygon", "coordinates": [[[[-93.234347105026, -57.279042764978], [-93.234347105026, 16.720385051694], [-24.046872854233, 16.720385051694], [-24.046872854233, -57.279042764978], [-93.234347105026, -57.279042764978]]], [[[-24.046872854233, -41.337219333843], [-24.046872854233, 41.469068342309], [56.953135728836, 41.469068342309], [56.953135728836, -41.337219333843], [-24.046872854233, -41.337219333843]]]]}
programCode {005:040}
publisher Agricultural Research Service
resource-type Dataset
source_datajson_identifier true
source_hash e854579e3336501db48d4db9aafce176af5825fb99b7fdaa8a7c8f8608d9bbb9
source_schema_version 1.1
spatial {"type": "MultiPolygon", "coordinates": [[[[-93.234347105026, -57.279042764978], [-93.234347105026, 16.720385051694], [-24.046872854233, 16.720385051694], [-24.046872854233, -57.279042764978], [-93.234347105026, -57.279042764978]]], [[[-24.046872854233, -41.337219333843], [-24.046872854233, 41.469068342309], [56.953135728836, 41.469068342309], [56.953135728836, -41.337219333843], [-24.046872854233, -41.337219333843]]]]}
temporal 2000-01-01/2000-01-01
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • ars
  • climate-change
  • climate-models
  • climatologymeteorologyatmosphere
  • data-gov
  • hydrology
  • soil-erosion
isopen True
license_id cc-zero
license_title Creative Commons CCZero
license_url http://www.opendefinition.org/licenses/cc-zero
maintainer Goodrich, Dave
maintainer_email dave.goodrich@usda.gov
metadata_created 2025-09-23T17:11:56.367610
metadata_modified 2025-09-23T17:11:56.367615
notes <p>CLImate GENerator (CLIGEN) is a stochastic weather generator that produces daily and sub-daily timeseries of weather variables. The resulting timeseries are statistically similar to observed timeseries considering various temporal scales and climate factors. This dataset consisting of CLIGEN inputs may be used to generate timeseries at any point in a 0.25 arc degree resolution grid covering South American and African continents. Estimated parameter values at each grid point are based on 20-year records taken from global climate datasets. Precipitation parameters are statistically downscaled from grid-scale to point-scale based on observations from globally distributed ground networks representing >10,000 stations. This dataset is intended for use in climate-related research in ungauged areas where observed climate records are unavailable.</p> <p>The data are formatted as CLIGEN <em>.par files, which are the only required input for CLIGEN. The files are separated into Africa and South America folders containing n=40936 and n=24588 files, respectively. The files are labeled according to grid point lat/lon coordinates (WGS84) in decimal degrees. The labeling convention uses 'N' and 'E' (north, east) to represent coordinates with a positive sign and 'S' and 'W' (south, west) to represent coordinates with a negative sign. </em></p><div><em><br>Resources in this dataset:</em></div><em><br></em><ul><em></em><li><em><p>Resource Title: Grid Files.</p> <p>File Name: Grid Files.zip</p></em><p><em>Resource Description: CLIGEN input files (</em>.par) for the South America and Africa grid.</p></li><br><li><p>Resource Title: Summary Table.</p> <p>File Name: Summary Table.docx</p><p>Resource Description: Summary table that lists CLIGEN parameters and basic dataset characteristics of the gridded parameterization.</p></li></ul><p></p>
num_resources 2
num_tags 15
title Gridded 20-Year Parameterization of a Stochastic Weather Generator (CLIGEN) for South American and African Continents at 0.25 Arc Degree Resolution