COSMOS-UK. Soil moisture: September 2022

The COSMOS-UK soil moisture status report provides an insight into the current soil moisture conditions across the UK as monitored by the COSMOS-UK network. The network comprises approximately 50 sites at which a cosmic ray neutron sensor is deployed to monitor soil moisture within a footprint of about 12 hectares. The report is comprised of: maps of end of month soil moisture both as volumetric water content and as a soil moisture index; a short description of current status; and selected time series graphs showing data from the last three years

COSMOS-UK. Soil moisture: December 2022

The COSMOS-UK soil moisture status report provides an insight into the current soil moisture conditions across the UK as monitored by the COSMOS-UK network. The network comprises approximately 50 sites at which a cosmic ray neutron sensor is deployed to monitor soil moisture within a footprint of about 12 hectares. The report is comprised of: maps of end of month soil moisture both as volumetric water content and as a soil moisture index; a short description of current status; and selected time series graphs showing data from the last three years

COSMOS-UK. Soil moisture: October 2022

The COSMOS-UK soil moisture status report provides an insight into the current soil moisture conditions across the UK as monitored by the COSMOS-UK network. The network comprises approximately 50 sites at which a cosmic ray neutron sensor is deployed to monitor soil moisture within a footprint of about 12 hectares. The report is comprised of: maps of end of month soil moisture both as volumetric water content and as a soil moisture index; a short description of current status; and selected time series graphs showing data from the last three years

COSMOS-UK. Soil moisture: November 2022

The COSMOS-UK soil moisture status report provides an insight into the current soil moisture conditions across the UK as monitored by the COSMOS-UK network. The network comprises approximately 50 sites at which a cosmic ray neutron sensor is deployed to monitor soil moisture within a footprint of about 12 hectares. The report is comprised of: maps of end of month soil moisture both as volumetric water content and as a soil moisture index; a short description of current status; and selected time series graphs showing data from the last three years

COSMOS-UK. Soil moisture: January 2023

The COSMOS-UK soil moisture status report provides an insight into the current soil moisture conditions across the UK as monitored by the COSMOS-UK network. The network comprises approximately 50 sites at which a cosmic ray neutron sensor is deployed to monitor soil moisture within a footprint of about 12 hectares. The report is comprised of: maps of end of month soil moisture both as volumetric water content and as a soil moisture index; a short description of current status; and selected time series graphs showing data from the last three years

COSMOS-UK user guide: users’ guide to sites, instruments and available data (version 2.10)

The COSMOS-UK User Guide is a comprehensive guide to the data collected by COSMOS-UK, including the near-real time soil moisture data derived from counts of netrons derived from cosmic rays. The User Guide contains: i) information about the sites, their locations and other meta data. ii) Details of the instruments deployed at each site. iii) Background information about the cosmic ray neutron counter which is used to derive soil moisture within a 12 hectare footprint. iv) Descriptions of data and information products that are available from COSMOS-UK

Daily and sub-daily hydrometeorological and soil data (2013-2019) [COSMOS-UK]

This dataset contains daily and sub-daily hydrometeorological and soil observations from COSMOS-UK (cosmic-ray soil moisture) monitoring network from October 2013 to the end of 2019. These data are from 51 sites across the UK recording a range of hydrometeorological and soil variables

Daily and sub-daily hydrometeorological and soil data (2013-2018) [COSMOS-UK]

This dataset contains daily and sub-daily hydrometeorological and soil observations from COSMOS-UK (cosmic-ray soil moisture) monitoring network from October 2013 to the end of 2018. These data are from 50 sites across the UK recording a range of hydrometeorological and soil variables. Each site in the network records the following hydrometeorological and soil data at 30 minute resolution: Radiation (short wave, long wave and net), precipitation, atmospheric pressure, air temperature, wind speed and direction, humidity, soil heat flux, and soil temperature and volumetric water content (VWC), measured by point senors at various depths. Each site hosts a cosmic-ray sensing probe; a novel sensor technology which counts fast neutrons in the surrounding atmosphere. In combination with the recorded hydrometeorological data, neutron counts are used to derive VWC over a field scale (COSMOS VWC), at two temporal resolutions (hourly and daily). The presence of snow leads to erroneously high measurements of COSMOS VWC due to all the extra water in the surrounding area. Included in the daily data are indications of snow days, on which, the COSMOS VWC are adjusted and the snow water equivalent (SWE) is given. The potential evapotranspiration (PE), derived from recorded hydrometeorological and soil are also included at daily resolution. Two levels of quality control are carried out, firstly data is run through a series of automated checks, such as range tests and spike tests, and then all data is manually inspected each week where any other faults are picked up, including sensor faults or connection issues. Quality control flags are provided for all recorded (30 minute) data, indicating the reason for any missing data

COSMOS-UK: national soil moisture and hydrometeorology data for environmental science research

The COSMOS-UK observation network has been providing field-scale soil moisture and hydrometeorological measurements across the UK since 2013. At the time of publication a total of 51 COSMOS-UK sites have been established, each delivering high-temporal resolution data in near-real time. Each site utilizes a cosmic-ray neutron sensor, which counts epithermal neutrons at the land surface. These measurements are used to derive field-scale near-surface soil water content, which can provide unique insight for science, industry, and agriculture by filling a scale gap between localized point soil moisture and large-scale satellite soil moisture datasets. Additional soil physics and meteorological measurements are made by the COSMOS-UK network including precipitation, air temperature, relative humidity, barometric pressure, soil heat flux, wind speed and direction, and components of incoming and outgoing radiation. These near-real-time observational data can be used to improve the performance of hydrological models, validate remote sensing products, improve hydro-meteorological forecasting, and underpin applications across a range of other scientific fields. The most recent version of the COSMOS-UK dataset is publically available at https://doi.org/10.5285/b5c190e4-e35d-40ea-8fbe-598da03a1185 (Stanley et al., 2021)