Baltimore Ecosystem Study Institute of Ecosystem Studies

2011 BES Annual Meeting Presentation and Poster Abstracts



 
Pilot Testing of Distributed Temperature Sensing in Dead Run
 
Welty, Claire
Co-Authors: Julia Miller, Jon Duncan

 
Abstract: In September 2011 we deployed 1 kilometer of a fiber optic cable in the headwaters of Dead Run to enable distributed temperature sensing at a spatial resolution of 1 m and temporal resolution of 3 minutes. The DTS system was provided by an equipment grant from CTEMPS (http://ctemps.org/). The goal of the pilot testing was to determine locations of concentrated groundwater seeps to this stream segment during base flow, but the system may be of interest for a variety of biogeochemical and ecosystem studies in the BES. Hourly-averaged spatial data revealed a highly detailed characterization of stream temperature over space and time. The set-up of the system was complex, labor-intensive, and required a significant source of funds for supplemental supplies, but yielded data not otherwise easily obtainable over such temporal and spatial scales. The logistics and challenges of deployment in an urban environment will be discussed, and example data sets obtained from Dead Run will be presented.