What does this research mean for the field?

Changes in phenology significantly affect surface energy balance components across northern lands. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This research aims to analyze changes in phenology and surface energy balance across northern lands, focusing on the growing season.

February 19, 2026Open Access

Phenology and Surface Energy Balance Changes Across Northern Lands

Key Points

This research aims to analyze changes in phenology and surface energy balance across northern lands, focusing on the growing season.
Utilization of NetCDF files to analyze latent heat, sensible heat, evaporative fraction, and albedo.
Performance of sensitivity calculations regarding shifts in the start and end of the growing season.
Conducting partial correlation calculations to understand relationships between variables.
Development and application of Python scripts for data visualization and spatial analysis.
Identified significant spatial patterns in surface energy balance components across northern ecosystems.
Observed changes in albedo and temperature sensitivity corresponding to shifts in the growing season.
Sensitivity analysis shows clear variations in latent and sensible heat related to phenological changes.

Abstract

Upload contains code and data used in the study: Phenology and Surface Energy Balance Changes Across Northern Lands by Hau, Olivia; Winkler, Alexander; Buermann, Wolfgang; Kranz, Johanna; Weber, Ulrich; Forkel, Matthias The folder contain analysis and visualiszation of spatial pattern in latent heat, sensible heat, evaporative fraction, albedo, and temperature sensitivity to shifts in start (SOS) and end (EOS) of growing season: Data/ sensitivities - NetCDF output files from sensitivity calculation (divided in 2 folders due to case-sensitive file names, not recognized by windows) partialcorrelation - NetCDF output files from partial correlation calculation (divided in 2 folders due to case-sensitive file names, not recognized by windows) Code/ 'compositₚlots' - Python script for spatial plots (composit maps, boxplot) from output data of sensitivity calculation / partial correlation 'PTDcalculation' - Python script of SOS and EOS calculation from EasyPhenology function 'other' - Python scripts shematic figure, boxplot statistics, 'sensitivitycalculation' - Python scripts of sensitivity calculation 'partialcorrelation' - Python scripts of partial correlation Questions about the data or code can be send to ohau@bgc-jena. mpg. de

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