the central mississippi river basin ltar site infrastructure - sadler
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The Central Mississippi River BasinLTAR Site Infrastructure
John Sadler, Ken Sudduth, Bob Lerch, Claire Baffaut, Newell Kitchen, Scott Drummond
USDA-ARS Cropping Systems and Water Quality Research,
Columbia MO
CSWQRU
AmeriFlux (Forested)
Tucker Prairie
Prairie Forks CA
NRCS PI Center
MU Greenley RC
MU HARC
MU RC’s
Goodwater Creek EW
Mark Twain Lake
Goodwater Creek EW
Young’sCreek
Lower Long Branch (USGS)
Upper Long Branch
CSWQRU
South Fork Salt R
(USGS)
Centralia(pop ~4200)
Weir 11
Weir 9
Weir 1
Field 1 (ASP)Field 3 (BAU)
Field 2
GW Well Nest
Shop, Storage
30 Plots0.34 ha
18 Flumes
Field 1ASP
Field 1Weir
GW Well nests
Weatherstation
FluxTower
X
Long-Term Agro-ecosystem Research in the Central Mississippi River Basin
• Special Section of the Journal of Environmental Quality, 2015, Vol 44:3-96– Introduction and overview– Weather data– Flow data– Herbicide data– Nutrient data– With extensive supplemental online
materials– Plus 4 papers on research, in
groundwater, stream, and lake nutrients, and in modeling in the GCEW
– Supplemented by earlier papers in other journals on sediment data, methods, and production systems
Upgrades
• Stream flow, sampling, and telecommunications– Lower Long Branch, Upper Long Branch, Young’s
• From seasonal to full-year• Telecommunications by cellular modem
– Weir 11 and Field 3• Weirs in place from prior era - install samplers• RF450 telecommunications
– Weir 1 and Field 1• Currently full-year – just upgrade samplers• RF450 telecommunications
Goodwater Creek EW
Young’sCreek
Lower Long Branch (USGS)
Upper Long Branch
CSWQRU
South Fork Salt R
(USGS)
Weir in place, re-commissioned
Sampler and comm upgrade
Seasonal > full-year and comm
Telecommunication Upgrades
• Broadband link to the site– 6 Mbps up, 2 Mbps down
• Wifi at 5 GHz standard within field site– Security cameras, plot flowcams, phenocams– Smartphone access to data from servers, and to internet
• CSI RF450 network at 2.4 GHz– Raingauge network, Weather station, GCEW Weirs, Flux towers,
other outlying sites• CSI RF416 network at 2.4 GHz
– Plot flow, samples, other plot equipment• Cellular modems
– Three largest stream sites – too distant for RF450 network
Broadband,WiFi, and RF4xxCommunications
Common Experiment
• ASP – Aspirational – Field 1– CSW rotation currently, no-till with cover crop– Done by ARS staff– VR Nutrients by crop sensing and soil sampling– Surface flow and sampling in place (upgrading)– Established Flux Tower there in 2015
• BAU – Business As Usual – Field 3– Mulch-till corn-soybean rotation– Done by local producer– Weir exists, establish flow measurement and sampling– Will target Flux Tower in 2016
Weather Station - Specific local tests
• Historical vs ongoing LTAR instruments• Rain gauges– Weighing vs tipping bucket– Shielded vs unshielded
• Soil moisture– Stevens Hydroprobes in SCAN station– CSI probes for comparison at each depth
• Non-contact water stage sensors for bridges
Thank you!
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