Generic calibration of a simple model of diurnal temperature variations for spatial analysis of accumulated degree-days.

ABSTRACT: Accumulated growing degree-days (aGDD) are widely used to predict phenological stages of plants and insects. It has been shown in the past that the best predictive performance is obtained when aGDD are computed from hourly temperature data. As the latter are not always available, models of diurnal temperature changes are often employed to retrieve the required information from data of daily minimum and maximum temperatures. In this study, we examine the performance of a well-known model of hourly temperature variations in the context of a spatial assessment of aGDD. Specifically, we examine whether a generic calibration of such a temperature model is sufficient to infer in a reliable way spatial patterns of key phenological stages across the complex territory of Switzerland. Temperature da

SUBMITTER: Felber R 

PROVIDER: S-EPMC5874280 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature