@misc{birchill_exploring_ocean_2021, 
author={Birchill, A., Beaton, A., Hull, T., Kaiser, J., Mowlem, M., Pascal, R., Schaap, A., Voynova, Y., Williams, C., Palmer, M.},
title={Exploring Ocean Biogeochemistry Using a Lab-on-Chip Phosphate Analyser on an Underwater Glider},
year={2021},
howpublished = {journal article},
doi = {https://doi.org/10.3389/fmars.2021.698102},
abstract = {The ability to make measurements of phosphate (PO43-) concentrations at temporal and spatial scales beyond those offered by shipboard observations offers new opportunities for investigations of the marine phosphorus cycle. We here report the first in situ PO43- dataset from an underwater glider (Kongsberg Seaglider) equipped with a PO43- Lab-on-Chip (LoC) analyser. Over 44 days, a 120 km transect was conducted in the northern North Sea during late summer (August and September). Surface depletion of PO43- (<0.2 µM) was observed above a seasonal thermocline, with elevated, but variable concentrations within the bottom mixed layer (0.30-0.65 µM). Part of the variability in the bottom layer is attributed to the regional circulation and across shelf exchange, with the highest PO43- concentrations being associated with elevated salinities in northernmost regions, consistent with nutrient rich North Atlantic water intruding onto the shelf. Our study represents a significant step forward in AUV sensor capabilities and presents new capability to extend research into the marine phosphorous cycle and, when combined with other recent Lab-on-Chip developments, nutrient stoichiometry.},
note = {Online available at: \url{https://doi.org/10.3389/fmars.2021.698102} (DOI). Birchill, A.; Beaton, A.; Hull, T.; Kaiser, J.; Mowlem, M.; Pascal, R.; Schaap, A.; Voynova, Y.; Williams, C.; Palmer, M.: Exploring Ocean Biogeochemistry Using a Lab-on-Chip Phosphate Analyser on an Underwater Glider. Frontiers in Marine Science. 2021. vol. 8, 698102. DOI: 10.3389/fmars.2021.698102}}