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Water Yield

  • Added 23 Apr 2018
  • Updated 08 Jun 2018

This layer represents the net supply of water remaining after evapo-transpiration losses (mm/yr) as an indicator of water- flow regulation. Although this is a simplified view and does not consider low flows or flood flows, it permits national assessment with the use of a nationally applicable water-balance model (similar to the tier 1 approach in Kareiva et al. (2011)). WATYIELD (Fahey et al., 2010) models daily water transfers of rainfall, interception, evapotranspiration, and drainage associated with a soil profile. Input data to the model are daily rainfall and daily potential evapotranspiration (PET). Parameters required for the model included the fraction of intercepted rainfall, vegetation factors for transpiration, and total and readily available water holding capacity of the soil.


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Tagsecosystem, ecosystems, soil, water, water-balance, yield
RegionsNew Zealand
MetadataISO 19115/19139, Dublin Core

Technical Details

Layer ID 95385
Data type Grid
Resolution 100.000m
Services Raster Query API, Catalog Service (CS-W), Atom Feed


Added23 Apr 2018
Last updated3 May 2018
Revisions 4 - Browse all revisions
Current revision Imported on May 3, 2018 in NZGD2000 / New Zealand Transverse Mercator 2000.
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