2017-2021 Automated chamber (Eosense eosAC) and Picarro G2508 GHG analyzer flux data for CO2, CH4, and N2O, as well as 2018-2019 weekly soils data (pH, NO3, NH4, and soil depth GHG concentrations), and 2018-2021 continuous soil sensing data (oxygen, moisture, and temperature)
Alfalfa_Chamber flux data tab: Continuous soil flux measurements from January 2017-February 2021
Chamber ChamberPressure (kPa) ChamberTemperature (K) CO2 flux: CO2_umol/m2/s CH4 flux: CH4_nmol/m2/s N2O flux: N2O_nmol/m2/s Site Year
Alfalfa Soil Sensor Data tab: Measurements at 10, 30, and 50 cm soil depths from October 2018-February 2021
Temp = Temperature in Celsius VWC= volumetric water content in m3/m3 O2 = Oxygen concentration in %
TIMESTAMP: Date and Time Temp_10cm (C) Temp_30cm (C) Temp_50cm (C) VWC_10cm (m3/m3) VWC_30cm (m3/m3) VWC_50cm (m3/m3) O2_10cm (%) O2_30cm (%) O2_50cm (%)
AlfalfaNDVI 2018-2020 tab: DATE NDVI: normalized difference vegetation index NIR: near-infrared radiation NIRv: near-infrared reflectance of vegetation (NIRV), is the product of total scene NIR reflectance (NIRT) and the normalized difference vegetation index (NDVI) Site Year
Alfalfa Weekly NH4 data tab: Weekly Mean, standard error (se), standard deviation (sd), and confidence interval (ci) values of soil NH4 data in ug-N/g dry soil.
Alfalfa Weekly NO3 data tab: Weekly Mean, standard error (se), standard deviation (sd), and confidence interval (ci) values of soil NO3 data in ug-N/g dry soil.
Alfalfa Weekly pH data tab: Weekly Mean, standard error (se), standard deviation (sd), and confidence interval (ci) values of soil pH data.
Alfalfa Weekly Soil Depth Gas Samples Weekly mean (October 2018-December 2019) depth values (n=2) for CO2 (ppm), CH4 (ppm), and N2O (ppm) at 10 cm, 30 cm, and 50 cm depths, installed alongside soil moisture, oxygen, and temperature data.
AMF_US-Bi2_BASE_HH_9-5: see Ameriflux (see below) for open access to all available data other variable descriptors.
NEE: Net Ecosystem Exchange (µmolCO2 m-2 s-1)
Links to other publicly accessible locations of the data:
Was data derived from another source? Eddy covariance data from Ameriflux If yes, list source(s): https://ameriflux.lbl.gov/sites/siteinfo/US-Bi1