DOI: 10.5061/dryad.15dv41p44
title: Precision lysimeter data: Nevada Agricultural Experiment Station

description: The data in this repository support the manuscript "Closing the water
 balance with a precision small-scale field lysimeter," currently
 being considered for publication at the journal Sensors. The Nevada
 Agricultural Experiment Station field site, located near Reno, NV,
 includes two constructed test beds and two lysimeters. One test bed and
 one lysimeter are filled with native soil from the site; the other test
 bed and lysimeter are filled with commercial construction sand. The
 lysimeters are used to directly measure evaporation from the two different
 soil types in order to better constrain the water balance in the test
 beds. Data include meteorological data (preciptation, air temperature,
 relative humidity, wind speed, and net solar radiation) and lysimeter data
 (load cell readings, soil moisture, and sump water level readings for two
 lysimeters).
description: Meteorological data include raw data (temperature, relative
 humidity, wind speed, and net radiation) as well as calculated estimates
 of potential evapotranspiration. Lysimeter data include
 raw data (load cell voltage measurements, soil moisture measurements, and
 drainage stage), as well as calibrated lysimeter measurements.
 Precipitation data include tipping bucket tips since last reset
 and calculated cumulative precipitation since the beginning of
 monitoring. Load cell calibration data include load
 cell voltage readings, known added mass, and calculated calibration
 parameters.
description: # Precision lysimeter data: Nevada Agricultural Experiment Station
 [https://doi.org/10.5061/dryad.15dv41p44](https://doi.org/10.5061/dryad.15dv41p44) This dataset contains meteorological and experimental data for two small scale, precision lysimeters designed to directly measure bare soil evaporation in order to better constrain the near-surface water balance in an unsaturated soil. ## Description of the data and file structure The data in this repository represent data collected by a pair of weighing lysimeters deployed alongside two test plots. One lysimeter is filled with construction sand (sand) and the other filled with native soil (soil). The data consiste of four .csv files: lysimeter_data.csv, precipitation.csv, meteorological.csv, and calibration_data.csv. Experiment time range: * Start date: 5/4/2021 9:15 * End Date: 11/24/2021 9:00 Study Area: river-adjacent flood plain near Reno, Nevada, perviously used for agriculture. Ecoregion: Sierra Nevada-influenced Semiarid Hills and Basins **meteorological_data.csv** This file includes the on-site meteorological data recorded hourly during the experiment. Sensors and datalogger are as follow: Datalogger: Campbell Scientific Inc, CR3000, 15-minute collection interval Precipitation Gauge: Texas Electronics, TE525MM, rainfall per tip = 0.1mm, Orifice diameter = 24.5cm, installed 3 m above grade Air Temperature / Relative Humidity: Vaisala, temperature measurement range -40 to 60 deg C, accuracy = +/-0.6 deg C; relative humidity measurement range 0 to 100% typical accuracy -40 to 0 deg C = +/-5%(0-90% RH) and +/- 7% (90-100% RH) typical accuracy 0 to 40 deg C +/-3% (0-90% RH) and +/-5% (90-100% RH) typical accuracy 40 to 60 deg C +/-5% (0-90% RH) and +/-7% (90-100% RH) Wind Speed: MetOne, 034B, measurement range 0 to 75 (m/s), accuracy = 0.1 (m/s) Net Solar Radiation (Rn): Kipp & Zonen, CMP3, spectral range 300 to 2800 nm Columns in this file are defined in a 2-row header. The first row gives variable names and the second row shows units. \[column header, [units]: [description] **timestamp**, [M/D/YYYY hh:mm]: timestamp of each row of observations **Tmax**, C: maximum temperature (deg. C) observed during the previous hour **Tmin**, C: minimum temperature observed during the previous hour **Net_Radiation**, W/m2: net long and shortwve radiation (W/m2) recorded over the previosu hour. **Wind_speed**, m/s: average wind speed recorded over the previous hour **Dewpoint**_T, C: dewpoint temperature calculated from average air temperature and average relative humidity over the previous hour. **Hourly ASCE stPM ETr**, mm/h: ASCE standard Penman-Monteith reference evapotranspiration over the previous hour **Hourly ASCE stPM ETo**, mm/h: ASCE standard Penman-Monteith potential evapotranspiration over the previous hour **Hourly FAO 56PM ETo**, mm/h: UN Food and Agriculture Organization Penman-Monteith potential evapotranspiration over the previous hour **Cumulative ASCE stPM ETr**, mm/h: cumulative ASCE standard Penman-Monteith reference evapotranspiration **Cumulative ASCE stPM ETo**, mm/h: cumulative ASCE standard Penman-Monteith potential evapotranspiration **Cumulative FAO 56PM ETo**, mm.h: cumulative UN Food and Agriculture Organization Penman-Monteith potential evapotranspiration **precipitation_data.csv** This file includes precipitation recorded on 15-minute intervals by the on-site meteorological monitoring station. Precipitation is recorded by the Texas Electronics TE525MM rain gauge installed 3 m above the ground at 15 minute intervals. Columns in this file are defined in a 2-row header. The first row gives variable names and the second row shows units. \[column header, [units]: [description] **timestamp**, [M/D/YYYY hh:mm]: timestampe of each row of observations **PPT tips since program change**, tips: cumulative number of tips of tipping bucket (tips) recorded since last datalogger update **Cumulative_Precipitation_tips**, tips: cumulative number of tips of tipping bucket (tips) recorded since beginning of the experiment **Cumulative_Precipitation_mm**, mm: cumulative precipitation (mm) recorded since the beginning of the experiment **lysimeter_data.csv** This file includes the data recorded by the lysimeter datalogger at 15-minute intervals during the experiment. Sensors and datalogger are as follows: Datalogger: Campbell Scientific Inc, CR3000, 15-minute collection interval Load Cell: Sentran, LLC., model ZA1-25-000, rated capacity = 25 pounds, combined error = &lt;+/-0.025 %FSO Load Cell Temperature: thermocouple Soil Moisture (Sand): Campbell Scientific Inc., CS616, accuracy = +/- 2%, resolution = 0.1% Soil Moisture (Soil): Campbell Scientific Inc., CS655, accuracy = +/- 1%, resolution = 0.1% Drain stage: Druck, 1860, 1 psi range Columns in this file are defined in a 2-row header. The first row gives variable names and the second row shows units. \[column header, [units]: [description] **timestamp**, [M/D/YYYY hh:mm]: timestampe of each row of observations **Sand_Load_cell_mV**, mV: mV reading for the load cell on the sand lysimeter **Sand_Load_cell_temp**, deg. C: temperature of the load cell on the sand lysimeter **Sand_drain_stage_cm**, cm: stage in the 4" dimaeter drainge sump of the sand lysimeter **sand_deep_soil_moisture**, volumetric %: volumetric water content in the lower half of the sand lysimeter **Soil_load_cell_mV**, mV: mV reading for the load cell on the soil lysimeter **soil_load_cell_temp**, deg. C: temperature of the load cell on the soil lysimeter **Soil_drain_stage_cm**, cm: stage in the 4" dimaeter drainge sump of the soil lysimeter **Soil_Deep_soil_moisture**, volumetric %: volumetric water content in the lower half of the soil lysimeter **Soil_shallow_soil_moisture**, volumetric %: volumetric water content in the upper half of the soil lysimeter **Soil_Deep_soil_temp**, deg. C: soil temperature in the lower half of the soil lysimeter **Soil_shallow_soil_temp**, deg. C: soil temperature in the upper half of the soil lysimeter **calibration_data.csv** This file includes the data used to calibrate the two lysimeters. The sensors are as described above in the lysimeter_data.csv entry. Columns in this file are defined in a 2-row header. The first row gives variable names and the second row shows units. \[column header, [units]: [description] **Lysimeter and Scenario**, [Lysimeter Scenario]: Tells which lysimeter (sand or soil) and scenario (warm or cool) the row of data describes **timestamp**, [M/D/YYYY hh:mm]: timestampe of each row of observations **Load Cell Raw**, mV: raw mV reading from the load cell attached to the indicated lysimeter **Calibration added mass**, g: known mass added to the indicated lysimeter using calibration standards **Load Cell Temperature**, deg. C: temperature of the load cell attached to the indicated lysimeter # Sharing/Access information Engineering drawings and fabrication details for the lysimeters can be accessed at * [https://github.com/lylesimeter](https://github.com/lylesimeter)