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The PISCO-GR2M Monthly Streamflow Product for Peru (v2.0)

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Owners:		This resource does not have an owner who is an active HydroShare user. Contact CUAHSI (help@cuahsi.org) for information on this resource.
Type:	Resource
Storage:	The size of this resource is 140.3 MB
Created:	Apr 13, 2023 at 6:58 p.m. (UTC)
Last updated:	Apr 28, 2026 at 1:55 p.m. (UTC)
Citation:	See how to cite this resource
Content types:	Multidimensional Content

Sharing Status:	Public
Views:	3717
Downloads:	298
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Abstract

This product provides a national-scale dataset of simulated monthly streamflow across Peru, developed using the PISCO gridded precipitation and evapotranspiration dataset at 0.1° × 0.1° spatial resolution, coupled with the GR2M rainfall–runoff model and a river routing scheme. The dataset covers the entire Peruvian territory, including transboundary river basins shared with neighboring countries.

The modeling framework generates mean daily discharge for 11,913 river reaches, enabling a fine-scale representation of hydrological conditions at the national level. Model calibration and validation were performed using observed daily streamflow records from 43 gauging stations over the period 1981–2020, ensuring consistency with observed hydrological dynamics.

This dataset is designed to support hydrological analysis, monitoring, and decision-making, and will be regularly updated to incorporate new simulations and improvements.

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Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

North Latitude

1.1858°

East Longitude

-67.3807°

South Latitude

-19.5189°

West Longitude

-82.8494°

Temporal

Start Date:
End Date:

Content

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Data Services

The following web services are available for data contained in this resource. Geospatial Feature and Raster data are made available via Open Geospatial Consortium Web Services. The provided links can be copied and pasted into GIS software to access these data. Multidimensional NetCDF data are made available via a THREDDS Data Server using remote data access protocols such as OPeNDAP. Other data services may be made available in the future to support additional data types.

THREDDS Data Service

https://thredds.hydroshare.org/thredds/catalog/hydroshare/resources/f1b537f338f24533af5dab946b51d215/data/contents/catalog.html

THREDDS Documentation OPeNDAP Documentation

Related Resources

This resource is described by

Llauca H, Lavado-Casimiro W, Montesinos C, Santini W, Rau P. PISCO HyM GR2M : A Model of Monthly Water Balance in Peru (1981–2020). Water. 2021; 13(8) :1048. https://doi.org/10.3390/w13081048

How to Cite

Llauca, H. (2026). The PISCO-GR2M Monthly Streamflow Product for Peru (v2.0), HydroShare, http://www.hydroshare.org/resource/f1b537f338f24533af5dab946b51d215

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/

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