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Dataset

Global maps of annual streamflow at 1 km resolution (FLO1K) 1960 – 2015 – PBL

Permanent linkCopied
State Available
Data owner Planbureau voor de Leefomgeving (Rijk)
Updated 02/16/2022 - 00:00
License CC-BY (4.0)
Thema
  • Nature and environment
Publicity level Public
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Description

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FLO1K, global maps of mean, maximum and minimum annual streamflow at 1 km resolution from 1960 through 2015.

Streamflow data is highly relevant for a variety of socio-economic as well as ecological analyses or applications, but a high-resolution global streamflow dataset is yet lacking. We created FLO1K, a consistent streamflow dataset at a resolution of 30 arc seconds (~1 km) and global coverage. FLO1K comprises mean, maximum and minimum annual flow for each year in the period 1960–2015, provided as spatially continuous gridded layers. We mapped streamflow by means of artificial neural networks (ANNs) regression. An ensemble of ANNs were fitted on monthly streamflow observations from 6600 monitoring stations worldwide, i.e., minimum and maximum annual flows represent the lowest and highest mean monthly flows for a given year. As covariates we used the upstream-catchment physiography (area, surface slope, elevation) and year-specific climatic variables (precipitation, temperature, potential evapotranspiration, aridity index and seasonality indices). Confronting the maps with independent data indicated good agreement (R2 values up to 91%). FLO1K delivers essential data for freshwater ecology and water resources analyses at a global scale and yet high spatial resolution.

Landing page: https://www.nature.com/articles/sdata201852

discharge flo1k freshwater river rivers rivier rivieren rivierstromingen streamflow zoetwater

Owner

Owner information

Data owner:
Planbureau voor de Leefomgeving (Rijk)

Contact point

Department:
PBL
Email address:
data@pbl.nl

Publication & catalogues

Data publisher:
Planbureau voor de Leefomgeving (Rijk)
Source Catalog:
https://data.overheid.nl

Reuse

Access rights:
Public
Status dataset:
Available

Licence & conditions

License:
CC-BY (4.0)

Location and time

Temporal coverage

Name:
1960 - 2015

Relations

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  5. Copernicus High Resolution Layer Forest: Tree Cover Density 2015 - TCD 2015 020m, version 2
  6. Copernicus High Resolution Layer Forest: Dominant Leaf Type 2012 - DLT 2012 020m, version 2
  7. Copernicus Land monitoring services High Resolution land cover characteristics for the 2015 reference year: Lot 4 – Water and Wetness product (raster) - version 02
  8. Copernicus Land monitoring services High Resolution land cover characteristics for the 2015 reference year: Lot 4 – Water and Wetness Probability Index (raster) - version 02
  9. Annual rate of change CPI; since 1963
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Metadata

Language settings

Data language

  • English

Metadata language

  • Dutch

Identifiers

Primary identifier

Alternative identifier

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Downloads

FLO1K

TIFF CC-BY (4.0)

The annual flow metrics are:

  • qav, average annual flow: average over the 12 mean monthly flow values of the year [m3/s]
  • qma, maximum annual flow: highest mean monthly flow value over the year [m3/s]
  • qmi, minimum annual flow: lowest mean monthly flow value over the year [m3/s]