Download Sea Ice Concentration Data from the NSIDC Climate Data Record R package icecdr version 1.1.0 Programmatic access to NSIDC's sea ice concentration CDR versions 4 and 5 <https://nsidc.org/data/g02135/versions/4> via its ERDAPP server and Sea Ice index <https://nsidc.org/data/g02135/versions/4>. Supports caching results and optional fixes for some inconsistencies of the raw files. Software Depends: R (>= 4.3.0) Imports: checkmate, cli, digest, glue, httr2, rlang Suggests: here, ncdf4, rcdo, testthat (>= 3.0.0), vcr Elio Campitelli <eliocampitelli@gmail.com> Comprehensive R Archive Network (CRAN) Elio Campitelli [cre, aut, cph] (ORCID: <https://orcid.org/0000-0002-7742-9230>) MIT + file LICENSE (https://CRAN.R-project.org/package=icecdr/LICENSE) 2026-03-24 application/tgz https://CRAN.R-project.org/package=icecdr doi:10.32614/CRAN.package.icecdr