Summary data of chamber-based oxygen and methane consumption and production in the streambed and outgassing of carbon dioxide and methane to the atmosphere collected seasonally for six tributaries of Hampshire River Avon (UK) during 2013-2014.

Data were collected in
six headwater reaches of the lowland catchment of the Hampshire River Avon (UK),
specifically on Chalk River Ebble and River Wylye, Greensand River Nadder and
West Avon, and clay River Sem and Sem Tributary River Priors between April 23th
2013 and February 10th 2014. The setup consists of transparent and
dark Perspex chambers (0.5 L enclosed volume, 73 cm2 surface area)
mounted on a steel-ring, which were used to quantify O2 production
and CH4 release in the light and benthic O2 consumption
and CH4 release in the dark, respectively. Concentrations of CH4 were
obtained based on discrete samples (GC analysis); O2 from Clark-type
oxygen microelectrodes connected to an Unisense Under-Water Meter. The floating
chambers consists of an inverted plastic bowl covered in reflective aluminum
tape, fitted with a polyurethane tubing sample port to allow for gas-sampling (CH4
measurements) and a SenseAir CO2 sensor

A more comprehensive description of the datasets is available from the manuscript below.

Rovelli L., L. A. Olde, C. M. Heppell, A. Binley, G. Yvon-Durocher, R. N. Glud, M. Trimmer. (2022) Contrasting biophysical controls on carbon dioxide and methane outgassing from streams. Journal of Geophysical Research: Biogeosciences 127(1): e2021JG006328, doi:10.1029/2021JG006328