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

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Planbureau voor de Leefomgeving | Uit catalogus: Data.Overheid.nl Dataregister

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Thema
Natuur en milieu
Status
Beschikbaar
Toegang
Publiek
Bijgewerkt
09-04-2018
Licentie
CC-BY
Taal
Engels
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.

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Gegevens over de dataset

Titel Global maps of annual streamflow at 1 km resolution (FLO1K) 1960 – 2015 – PBL
Identifier https://data.overheid.nl/dataset/global-maps-of-annual-streamflow-at-1-km-resolution--flo1k--1960---2015---pbl
Alternatieve identifier https://data.overheid.nl/data/dataset/global-maps-of-annual-streamflow-at-1-km-resolution--flo1k--1960---2015---pbl
Taal Engels
Taal van de metadata Nederlands
Beschrijving 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.
Tags discharge, flo1k, freshwater, river, rivers, rivier, rivieren, rivierstromingen, streamflow, zoetwater
Thema Natuur en milieu
Bestemmingspagina https://www.nature.com/articles/sdata201852
Dataclassificatie High value dataset: Nee
Basisregister: Nee
Referentiedata: Nee
Versie Status: Beschikbaar
Tijdsdekking Naam van de dekkingsperiode: 1960 - 2015

Gegevens over de aanbieder

Data eigenaar Planbureau voor de Leefomgeving
Publiceerder Planbureau voor de Leefomgeving
Contactpunt Naam van het contactpunt: PBL
E-mail van het contactpunt: geoloket@pbl.nl
Adres van het contactpunt: Bezuidenhoutseweg 30, Den Haag

Rechten en zichtbaarheid

Licentie CC-BY
Toegang Publiek

Relaties en verwijzingen

Bron catalogus Data.Overheid.nl Dataregister
  • FLO1K TIFF
    download bestand

    Toegangslink

    http://geoservice.pbl.nl/download/opendata/FLO1K/

    Naam FLO1K
    Beschrijving 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]
    Taal Engels
    Taal van de metadata Nederlands
    Licentie CC-BY
    Bestandstype TIFF

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