The eddy covariance flux data describes the fluxes of CO2, latent energy and sensible heat. It also includes ancillary data: air and soil temperatures, net radiation balance, down-welling photosynthetically active radiation, wind speed, wind direction, vapour pressure deficit, friction velocity, Monin-Obukhov stability and modelled respiration. Data collection was carried out at Cartmel Sands marsh from the 31 May 2013 till the 26 January 2015. The Cartmel Sands site is in Morecambe, North West England, and the meteorological tower was situated in the middle of the marsh.
This data was collected as part of Coastal Biodiversity and Ecosystem Service Sustainability (CBESS): NE/J015644/1. The project was funded with support from the Biodiversity and Ecosystem Service Sustainability (BESS) programme. BESS is a six-year programme (2011-2017) funded by the UK Natural Environment Research Council (NERC) and the Biotechnology and Biological Sciences Research Council (BBSRC) as part of the UK's Living with Environmental Change (LWEC) programme.
Publication date: 2016-04-25
Measurements are recorded on a Campbell Scientific (CS) CR5000 datalogger. An enclosed CS LI-7500 and a collocated CS CSAT3 were used to measure the fluxes. Fluxes and wind velocity measurements were made at 10 Hz at 4.3 m on a lattice tower. Fluxes were processed using EdiRe and Matlab.
The remaining variables are record every 15 minutes. Air temperature and humidity is measured with Vaisala MP103A and then converted to Vapour Pressure deficit (VPD). Precipitation is record by an Environmental Measurements Limited (EML) ARG100 tipping bucket rain gauge. Net radiation is measured with a Kipp and Zonen NR Lite. Photosynthetically active radiation (PAR) is measured with a Skye Instruments SKP215. Soil temperatures are measured with type T thermocouples.
Mean half hourly values were calculated in Matlab. The time refers to the middle of the half hourly period. E.g. 00:15 refers to the half hour from (and including) 00:00 up to (but not including) 00:30.