User guide : BGS Philippine National Hydrological Model dataset

Scheidegger, Johanna. 2024 User guide : BGS Philippine National Hydrological Model dataset. British Geological Survey, 45pp. (OR/24/023)

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Abstract/Summary

The Philippine National Hydrological Model is the first national-scale hydrological model of the country. Its primary purpose is to quantify components of the hydrological cycle at the national level, with model outputs of spatio-temporal patterns of precipitation, evapotranspiration, surface runoff, river flow, groundwater recharge, and groundwater flow. The model has been developed using a version of the macro-scale hydrological modelling software Variable Infiltration Capacity (VIC), into which a gridded groundwater model has been added so that it simulates the integrated surface water and groundwater system. The model has been constructed using openly available global datasets and calibrated against local observations, principally of river flows. The resulting modelling framework provides a means to develop understanding of the water resources across the Philippines and aims to support future national water resources planning. This report describes the model output available as monthly NetCDF raster at 2 km grid cell resolution and aggregated to district levels as csv spreadsheets. The data set is available from https://doi.org/10.5285/9a8dffe7-5bf7-496c-9d0a-99dea86c631c, (British Geological Survey, 2024). An example of comparing the provinces of Isabela and Pampanga is given in the report and the user will be able to do similar analysis to any districts using the tools in Appendix 2. A script in the programming language R is provided to analyse regional or district wise water resource components at a monthly time step and the ability to 1) compare time-series of a component of the water cycle for a specified region, 2) create mean monthly distributions of a component of the water cycle, or 3) mean annual balance of the water balance. This user guide provides the information required to enable the reader to understand and use this BGS data product.

Item Type:	Publication - Report
Funders/Sponsors:	British Geological Survey
Additional Information. Not used in RCUK Gateway to Research.:	This item has been internally reviewed, but not externally peer-reviewed.
Additional Keywords:	GroundwaterBGS
Related URLs:	Dataset
Date made live:	23 Aug 2024 15:15 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/537916

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