Processed high resolution rainfall, flow rate, sediment and nitrate concentration data

Zhang, Yusheng

(2024) Processed high resolution rainfall, flow rate, sediment and nitrate concentration data. [Data Collection]

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This dataset contains data on the flow rate and chemistry (sediment, nitrate) of water in surface runoff and throughflow, plus rainfall quantities, from four field scale catchments in South West England. The catchments are part of the North Wyke Farm Platform (NWFP), and they varied with regards the crops grown. Over the time period of this data collection (October 2016 to March 2020), crops included three different pasture types, and a winter wheat. This dataset takes the raw data available on the NWFP data portal and provides a cleaned-up version, rectifying issues where there were data flagged as potentially poor quality by the quality control process, or there were missing data. This dataset has subsequently been used to model the effect of climate change on the losses of suspended sediment and nitrate from agricultural land (https://doi.org/10.1016/j.jclepro.2022.130633).

Item Type	Data Collection
Creators	Zhang, Yusheng, Collins, Adrian
Contributors	Darch, Tegan
Keywords	rain; water quality; nitrates; sediment; flow rate; agricultural landscape; agricultural research systems; quality controls
Project	S2N - Soil to Nutrition - Work package 3 (WP3) - Sustainable intensification - optimisation at multiple scales, The North Wyke Farm Platform- National Capability [2017-22]
Date	17 July 2024
Temporal coverage	From To 1 October 2016 1 April 2020
Geographic coverage	50.773454, -3.906130
Data collection method	The data collection took place on the North Wyke Farm Platform (NWFP), a UK National Capability in SW England. The NWFP is split into a number of self-contained farms (‘farmlets’) that are managed according to different operation philosophies or practices. Within each farmlet are a number of hydrologically isolated catchments, and the slope and soil type of the NWFP means that all water falling within a catchment flows out via a flume. The flume is instrumented for the determination of various parameters, including water chemistry, turbidity, and flow rate, at 15-minute intervals. The data are from four catchments in three farmlets. Catchments 2 and 3 belong to the red farmlet, which, at the start of the time period encompassed by this dataset, was sown with high sugar ryegrass (Lolium perenne cv. AberMagic). Between August and October 2019, the land was sprayed with herbicide, ploughed and sown with winter wheat (Triticum aestivum, cv. Crusoe). Catchment 5 is on the green farmlet, which has fields of permanent pasture. Catchment 8 belongs to the blue farmlet, where fields are sown with a mixture of high sugar ryegrass (Lolium perenne cv. AberMagic) and white clover (Trifolium repens cv. AberHerald). Details about the NWFP design and development, including catchment sizes and a map, can be found in the report at https://doi.org/10.23637/rothamsted.98y1x. All raw data were download from NWFP data portal along with attached quality control codes. The NWFP data portal hosts rainfall data obtained from tipping bucket rain gauges on each catchment, plus a Pluvio rain gauge situated fairly centrally to the NWFP catchments. Information about the rainfall gauges is given at https://doi.org/10.23637/rothamsted.98y4w. The NWFP data portal (accessible via http://resources.rothamsted.ac.uk/farmplatform) provides open access to other data which users may find beneficial as supplementary data, including: 15-minute Met measurements; 15-minute soil moisture measurements; 30-minute GHG emissions; soils, crop and botanical field survey data; livestock and crop performance data; farm operational activities; and contextual information.
Publisher	Rothamsted Research
Digital Object Identifier (DOI)	10.23637/rothamsted.99117