DCO Project Summary

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Project Title
Quasi-Continuous CO2 Flux Measurement from Soil
Start DateEnd Date
2014-06-18 2014-08-25
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This project is aimed to perform quasi-continuous measurements of CO2 diffuse fluxes and of other needed parameters (i.e., soil temperature, humidity, and atmospheric pressure), developing a low-cost unit that is easy to install and manage. The availability of a quasi-continuous time series dataset helps the study and the estimation of CO2 fluxes from soil and in particular the identification of anomalies. The unit described in this project will make possible the creation of low-cost automatic monitoring networks.
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Reporting Year 2015 Click to expand

  • Update 2015: Quasi-Continuous CO2 Flux Measurement from Soil - submitted on Oct 01, 2015

    Update Details:

    Submitted by Matteo Lelli, September 2015

    At the end of 2014 the main purposes of the DECADE project have been achieved and the activities were presented in a poster session at the DCO international meeting in Munich.  Furthermore, very important information about logistics and management of the fieldwork station has been gathered.  Since the end of the DECADE project, we decided to make the following improvements on the station prototype.

    1. -Integrated a barometer inside the unit, so there is no longer a need to interface an external sensor.

    2. -Optimized the weight and dimension of the unit by integrating the battery and the charge regular inside the datalogger.

    3. -Built a new mono-block casing for the CO2 detector, which reduces the risk of leakages in the sampling circuit.

    4. -Implemented the possibility to add external sensors to the unit, e.g. meteorological sensors.

    5. -Implemented the possibility to use a telemetry bridge. In this way, we can solve the low GPRS signal problem that we encountered during the first Lipari campaign, by installing a radio bridge close to an available good signal (less than 1 km from the monitoring site). The bridge is also powered by a battery and a solar panel and it contains the GPRS modem and an 869 MHz radio. A second 869 MHz radio, configured point-to-point with the bridge, is installed inside the flux station.

    Finally, we performed some tests, both in our laboratories and in the field, in order to evaluate the reliability of the new version of the station, before beginning monitoring activities in Lipari Island again.  The field tests have not concluded, so we only have partial information about the reliability of the new components at the station.  We identified a location in Lipari Island where the data transfer components could be installed and we are currently getting information regarding feasibility.

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