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Published May 21, 2026 | Version v1.3.0

PHASE: Interpolated phenological phase entry dates for winter wheat (Triticum aestivum, DWD Plant ID 202) in Germany

Description

This dataset provides outputs of the PhenoPhaseR processing pipeline (https://doi.org/10.5281/zenodo.18743008) for
winter wheat (Triticum aestivum L., DWD Plant ID 202), covering observed phenological phases (sowing to harvest) for the entire territory of Germany for the period 1993–2024. PhenoPhaseR is an open-source R workflow that couples the PHASE model - a growing-degree-day (GDD) approach with adaptive outlier filtering - to derive spatially consistent, quality-controlled point observations of phenological phase-start dates from the DWD volunteer observer network. The dataset component provided here corresponds to processing Step 7 (spatial interpolation) of the seven-step pipeline.

Notes

What's new in v1.3.0

Two new published quality artefact families plus a metadata restructure:

  • CAL CSVs (new): per-phase wide-format tables of in-sample BAM model-fit diagnostics from mgcv::bamBAM_K, AIC, BIC, EDF, DEV_EXPLAINED, one row per year (32 rows per phase). Complements the existing VAM holdout cross-validation tables.
  • GEM CSVs (new): per-phase long-format tables of spatial quantiles of the BSE uncertainty raster — YEAR, Quantile, Value at the {0, 25, 50, 75, 100}% levels (160 rows per phase). Replaces the MEAN_BSE scalar column previously carried inline in VAM.
  • DQV quality metadata restructured to the JSON-LD-correct shape: per-year measurements (RMSE, MAE, R², training/validation N, basis dimension k) become first-class @graph entities with their own @id; per-phase Datasets reference them by @id only; one shared dqv:Metric per measure name.
  • Per-phase Dataset @id switched from phase_202-15/ to #phase-202-15 (hash-style contextual entity).
  • The deposit's README.md records a build-time rocrate-validator PASSED verdict at REQUIRED severity against ro-crate-1.1.
  • Data Fitness-for-Purpose (DFFP) reviews embedded where applicable.

Produced by PhenoPhaseR v1.5.0 (DOI: 10.5281/zenodo.18743008). The crate's overall layout (per-phase multi-band COGs, one band per year; per-phase wide-format CSVs) is unchanged from v1.3.0. Downstream code that parses the manifest needs to follow @id references for quality measurements; see README.md inside the deposit for migration notes.

Files

README.md

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Additional details

Related works

Is compiled by
Software: 10.5281/zenodo.18743008 (DOI)
Is derived from
Dataset: 10.5281/zenodo.19483111 (DOI)
Is source of
Dataset: 10.5281/zenodo.19683199 (DOI)

Funding

Deutsche Forschungsgemeinschaft
FAIRe Dateninfrastruktur für die Agrosystemforschung 501899475