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Clason, C.C.; Kitch, J.; Rangecroft, S.; Blake, W.; Morera, S.; Contreras Acho, S.G.

Land cover and sediment geochemistry in the Rio Santa catchment, Cordillera Blanca, Peru, 2019-2020

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This dataset is available under the terms of the Open Government Licence

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https://doi.org/10.5285/20837a27-414c-4597-a6d2-3edc1d2e9a98

These data encompass land cover data and sediment geochemistry from the Rio Santa catchment of the Peruvian Andes. Sediment samples were collected within the SIGMA: Peru project between 2019-2020. Geochemistry data include major and minor elements in sediment samples determined by X-Ray Fluorescence (XRF), organic matter determined by loss-on-ignition (LOI), and particle size data, and are provided for both the wider Rio Santa catchment and the Ranrahirca sub-catchment. The research was supported by the Natural Environment Research Council and the Newton Fund (grant NE/S013245/1).

Publication date: 2024-06-17

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View numbers valid from 17 June 2024 Download numbers valid from 20 June 2024 (information prior to this was not collected)

Formats

Comma-separated values (CSV), TIFF

Spatial information

Study area

Spatial representation type

Raster

Spatial reference system

WGS 84

Temporal information

Temporal extent

2019-01-01 to 2020-12-31

Provenance & quality

A new land cover map for the Rio Santa was generated via supervised classification of Landsat 8 imagery in ArcGIS, trained from field-sampled and geolocated land cover data. Sediment samples were collected in the field between 2019 and 2020 to characterise the range of sediment sources contributing to channel sediments in the Rio Santa catchment and Ranrahirca sub-catchment. Samples were oven dried, sieved to <63 μm, and prepared as required for further analyses. Data were produced on organic content (via loss-on-ignition), particle size (via laser diffraction) and major and minor elements (via Wavelength Dispersive X-Ray Fluorescence). All data were assessed for quality and erroneous values removed.

Licensing and constraints

This dataset is available under the terms of the Open Government Licence

Cite this dataset as:

Clason, C.C.; Kitch, J.; Rangecroft, S.; Blake, W.; Morera, S.; Contreras Acho, S.G. (2024). Land cover and sediment geochemistry in the Rio Santa catchment, Cordillera Blanca, Peru, 2019-2020. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/20837a27-414c-4597-a6d2-3edc1d2e9a98

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