SOW EC SYSTEM UPDATED.pdf
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- Data Loggers Federal contract opportunity
- Solicitation number
- 12305B21Q0116
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| File | Type | Posted |
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| Data Loggers Clauses.pdf |
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SPECIFICATIONS FOR EDDY COVARIANCE
I. BACKGROUND
The Hydrology and Remote Sensing Laboratory (HRSL) in Beltsville, Maryland is seeking to purchase 3 (three) eddy covariance flux towers collecting water and energy balance observations.
Critical in the development and validation of remote sensing-based energy balance models for monitoring crop conditions is having accurate tower-based eddy covariance (EC) systems measuring the impact of management practices on surface fluxes observed over irrigated and rainfed agriculture . The EC system comprised of either a closed or open path gas analyzer and three-dimensional (3D) sonic anemometer is the standard used nationally and internationally by AmeriFLUX and FLUXNET as well as the USDA-ARS LTAR network. HRSL requires a network of 3 EC systems to quantify the effects of management decisions based on LTAR Common Experiments on water, energy and carbon fluxes typically observed over east coast rain fed and irrigated crops. HRSL requires the EC flux measurement systems with programmable dataloggers to fully integrate the open-path gas analyzer and 3D sonic anemometer as a single unit instead of separate sensors which will provide increased measurement accuracy. These sensors will be deployed as part of the LCB-LTAR network in support of the Common Experiment making flux measurements under different management practices for either rain fed or irrigated cropping systems in order to assess the impacts of different management practices on crop water use and yield.
II. REQUIREMENTS & SPECIFICATIONS
• Part 34851-1 - VOLT116-SD GRANITE Series 16- or 32- Channel 5V Analog Input module SD Standard Duty
• Part 28385-5 - CR6-NA-ST-SW-CC M Measurement & Control Datalogger NA No Additional Coms ST -40 to +70C SW Standard 3yr Warranty CC Campbell Calibration
• Part 21969-237- CABLEPCBL-L15-PT 2-Conductor 16AWG Power Cable 15ft per cable -PT w/Tinned Wires
• Part 27350-23- IRGASON-SS2-NM- EB-IC Integrated CO2/H2O Open-Path Gas Analyzer & 3D Sonic Anemometer SS2 Sonic Sensor, Harsh NM No CR6 Mounting EB Enhanced Barometer IC IRGASON Carrying Case
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