Abstract
Processes in natural waters are highly variable in time and space. Although changes are expected in short-time scales, how short one could get to measure reliably is subjective to sampling strategies and methodologies. Here, we show that sub-hourly changes in surface waters dissolved oxygen, nutrients, and pigments are measurable and significant in an estuarine system. Tidal circulation has been found to strongly influence the observed changes and has implications to material fluxes in and out of estuaries.
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Acknowledgments
The authors thank the Director, National Institute of Oceanography, for support and facilities. K.J.A and D.M also thank the three Indian Academies for support through the Summer Research Fellowship Program 2012. We also acknowledge the support from Mr. Prakash Mehra and his colleagues by sharing tide data from Verem and Mr. D. Sundar for temperature and salinity data. This is NIO contribution no.5451.
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Anand, S.S., Anju, K.J., Mathew, D. et al. Sub-hourly changes in biogeochemical properties in surface waters of Zuari estuary, Goa. Environ Monit Assess 186, 719–724 (2014). https://doi.org/10.1007/s10661-013-3410-1
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DOI: https://doi.org/10.1007/s10661-013-3410-1