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Weighing Lysimeter Data for The Bushland, Texas, Sorghum Datasets

Metadata Updated: June 5, 2025

This dataset consists of weighing lysimeter data for sorghum [Sorghum bicolor (L.)] grown for grain or forage at the USDA-ARS Conservation and Production Research Laboratory (CPRL), Soil and Water Management Research Unit (SWMRU), Bushland, Texas (Lat. 35.186714°, Long. -102.094189°, elevation 1170 m above MSL) in 1987, 1988, 1991, 1993, 1997, 1998, 1999, 2003 through 2007, 2014, and 2015 (13 years) on from one to four large, precision weighing lysimeters, each in the center of a 4.44 ha square field similarly cropped. In 2006 and 2007, sorghum was also grown for forage. The weighing lysimeters were used to measure mass, which was converted to relative soil water storage with 0.05 mm accuracy at 5-minute intervals, and the 5-minute change in soil water storage was used along with precipitation and irrigation amounts to calculate crop evapotranspiration (ET), which is reported at 15-minute intervals. Although a quality control process was used, the ET data in this dataset are considered raw data. Advanced algorithms for detection of precipitation, dew and frost were applied in a separate process to determine ET values that are reported in files in a dataset entitled "Evapotranspiration and Water Balance Data for The Bushland, Texas Sorghum Datasets". Those files have "water-balance" in their names. Each lysimeter was equipped with a suite of instruments to sense wind speed, air temperature and relative humidity, components of the radiation balance (e.g., net radiation, incoming and reflected shortwave, photosynthetically active radiation (PAR), incoming and reflected longwave, thermal infrared emitted by the plant/soil surface), soil heat flux, soil temperature, and soil volumetric water content at certain depths. Not all properties were always sensed in any one year; and instruments used changed from season to season, which are reasons that subsidiary datasets and data dictionaries for each season are required.These datasets originate from research aimed at determining crop water use (ET), crop coefficients for use in ET-based irrigation scheduling based on a reference ET, crop growth, yield, harvest index, and crop water productivity as affected by irrigation method, timing, amount (full or some degree of deficit), agronomic practices, cultivar, and weather. Prior publications have focused on sorghum ET, crop coefficients, crop water productivity, and simulation modeling of crop water use, growth, and yield. Crop coefficients have been used by ET networks. The data have utility for testing simulation models of crop ET, growth, and yield and have been used for testing, and calibrating models of ET that use satellite and/or weather data.See the README file (README_Bushland_Sorghum_Weighing_Lysimeter) for descriptions of resources in this dataset. The descriptions vary by year because experimental protocols varied by year.

Access & Use Information

Public: This dataset is intended for public access and use. License: Creative Commons CCZero

Downloads & Resources

Dates

Metadata Created Date November 2, 2024
Metadata Updated Date June 5, 2025
Data Update Frequency irregular

Metadata Source

Harvested from USDA JSON

Additional Metadata

Resource Type Dataset
Metadata Created Date November 2, 2024
Metadata Updated Date June 5, 2025
Publisher Agricultural Research Service
Maintainer
Identifier 10.15482/USDA.ADC/25114610.v1
Data Last Modified 2025-05-02
Public Access Level public
Data Update Frequency irregular
Bureau Code 005:18
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id b43cfd03-ab8d-4b94-8e53-254003af1e26
Harvest Source Id d3fafa34-0cb9-48f1-ab1d-5b5fdc783806
Harvest Source Title USDA JSON
License https://creativecommons.org/publicdomain/zero/1.0/
Old Spatial {"type": "Polygon", "coordinates": -102.09906463948, 35.191719970106, -102.07671433134, 35.19121493622, -102.07678299485, 35.1865853205, -102.07609634934, 35.177044674547, -102.09913330298, 35.177072738625, -102.09906463948, 35.191719970106}
Program Code 005:040
Source Datajson Identifier True
Source Hash 5a770d4a9b4a3fb9b6f122e5fc93c91703fd30d39b03a6771072ef97de6a15d7
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -102.09906463948, 35.191719970106, -102.07671433134, 35.19121493622, -102.07678299485, 35.1865853205, -102.07609634934, 35.177044674547, -102.09913330298, 35.177072738625, -102.09906463948, 35.191719970106}
Temporal 1987-01-01/1987-01-01

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