NZEnvDS_Normalised minimum winter temperature v1.0

New Zealand Environmental Data Stack (NZEnvDS) comprises a set of 72 spatial layers for environmental modelling and site characterisation. NZEnvDS includes the layers that informed the Land Environments of New Zealand (LENZ), additional layers generated for LENZ that were never publicly released, and additional layers generated since, all covering mainland New Zealand and surrounding inshore islands. The original/top copy of the dataset is available at (doi.org/10.7931/m6rm-vz40), but the layers are reproduced here for ease of access. See (newzealandecology.org/nzje/3440/) for a publication describing NZEnvDS. Indicates the degree to which winter temperatures deviate from the winter temperature expected given the mean annual temperature. This provides a measure of continentality, with high values in oceanic settings and low values in continental settings (see the following for examples of their use: Leathwick 2001; Leathwick et al. 2005; Leathwick et al. 2006). This layer has the advantage that its correlation with some other commonly used temperature variables (e.g. mean annual temperature) is low (Appendix S2) so can be used together with other temperature variables in a model without confounding their relative effects (Leathwick 1995). Calculated as (from Leathwick 2001): where J is the mean minimum July temperature, T is the mean annual temperature etc, using the LENZ temperature layers for the years 1950–1980 (Leathwick et al. 2002).

Please cite the original paper as attribution when using these layers.