Amarillo Water Management Team Honored

A group of water researchers (“Amarillo Water Management Team”) was recently honored with the Agricultural Blue Legacy Award for their innovative work in developing a center pivot automation and control system (CPACS).

 Team members include:

  • Dr. Jiang Hu, co-director of graduate programs in the Texas A&M Department of Electrical and Computer Engineering at College Station.

  • Dr. Gary Marek, U.S. Department of Agriculture-Agricultural Research Service agricultural engineer at Bushland.

  • Thomas Marek, AgriLife Research senior research engineer at Amarillo; 

  • Dr. Dana Porter,  Texas A&M AgriLife Extension Service program leader in the Department of Biological and Agricultural Engineering at Lubbock; and

  • Dr. Qingwu Xue, AgriLife Research crop stress physiologist at Amarillo.

 The Center Pivot Automation and Control System (CPACS) integrates three important components:

 1)      Center Pivot Control System: High accuracy GPS data guides the center pivot speed and location controls.

 2)      Weather, Crop, and Soil Moisture Data: This data allows the computer software to best prescribe the right amount of water at the right time. It integrates real-time soil moisture monitoring, near real-time and short-term evapotranspiration rates, and precipitation forecasting. Crop models with crop type and growth stage also help the system know how much water the plants need at different times during the growing season.

 3)      Soil Moisture Sensor Placement: Though soil moisture sensing is not a new technique in the agricultural world, the technology has not always been optimized on a location-specific basis. This methodology recommends sensor placement based on local soil conditions, crop root zone depth, as well as sensor and communications reliability. This assists in balancing data reliability and cost effectiveness.

 The Amarillo Water Management Team has demonstrated the effectiveness of water saving technologies and found ways to optimize equipment that is already on the market. The team has U.S. and International patents pending, and they are ready to work with the irrigation industry to license the CPACS.

 Blue Legacy Awards were created as a way to honor groups whose practices enhance water conservation while maintaining or improving profitability. There are three award categories: Agricultural, Manufacturing, and Municipal. The award is sponsored by the Water Conservation Advisory Council.

 The award was presented during a March 18 virtual ceremony that will be aired in conjunction with the Texas Section American Water Works Association’s Texas Water™ 2021 Conference, March 29-April 1. Dr. Porter accepted the award on behalf of the research team.

“HPWD congratulates the Amarillo Water Management Team on this honor.  Individuals on this team have made many advancements in agricultural water conservation through their own research. However, this collaborative effort has created a new system and methodology. It is a cost-effective means of making current center pivot technology more water efficient through automation and machine-learning techniques,” said Jason Coleman, HPWD General Manager.

Other Blue Legacy Award winners include:

  • North Plains Groundwater Conservation District (Agriculture Non-Producer)

  • City of Horseshoe Bay (Municipal with <10,000 population)

  • Brushy Creek Municipal Utility District (Municipal with 10,000-50,000 population)

  • McAllen Public Utilities (Municipal with 100,000-500,000 population)

  • Tarrant Regional Water District (River Authority/Regional Water District).

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Integrating center pivot irrigation control technologies goal of Texas A&M study

By: Kay Ledbetter, AgriLife Today

BUSHLAND – New center pivot irrigation technologies are only beneficial if they are being used, according to a Texas A&M AgriLife Research engineer in Amarillo.

Thomas Marek is leading a team from Texas A&M AgriLife and Texas A&M University to ensure the latest advancements in agricultural irrigation management can be readily integrated for applications in the field.

The team is working to design a system utilizing off-the-shelf sensors and components to create a cost-effective and independent platform that will allow producers to realize benefits of irrigation technologies by integrating and automating information and decision support tools.

Their objectives include establishing:

* A wireless sensor network with anomaly detection.

* An irrigation system controller using real-time and forecast data, integration of data from multiple sensor inputs and unmanned aerial systems, models and safety.

* A user-friendly interface.

The multifaceted project integrates in-field data from multiple sensors and uses machine learning techniques plus crop models to automate irrigation scheduling decisions, Marek said.

Additional faculty members on the project include Dr. Dana Porter, AgriLife Extension engineer, Lubbock; and Dr. Jiang Hu, Texas A&M professor of electrical and computer engineering, College Station, along with three team members in his department, Dr. Justin Sun, Yanxiang Yang and Hongxin Kong.

An accompanying soil water sensor installation and placement study with the project involves Dr. Kevin Heflin, AgriLife Extension program specialist, Amarillo; and Dr. Gary Marek, U.S. Department of Agriculture-Agricultural Research Service research agricultural engineer, Bushland.

“There are some great advanced irrigation technologies available, but they are complex, underutilized, difficult to use and not well integrated in existing control systems, therefore their benefits are not being fully realized,” Porter said.

She said the cooperative and complementary efforts in several research studies at the Bushland research facilities shared by AgriLife Research and USDA-ARS should help change that.

“We had a water seed grant to work on automated, integrated advanced control of a center pivot irrigation system,” Marek said. “We teamed up with Texas A&M’s electrical and computer engineering researchers and worked extensively with them to develop some advanced automation capabilities.”

He said they have already shown significant improvements over commercially available systems by developing a technology suite that includes:

– Improved center pivot irrigation positioning and speed control.

– Improved variable rate irrigation control with real-time updates using in-field near-real-time data plus predictive crop water-use capabilities.

– A soil-moisture in-field sensor placement method to optimize wireless sensor nodes to balance cost with necessary data reliability.

“In our case, advanced automation includes automated communication of data from soil water sensors to the pivot controller,” Marek said.

“We are using a processing model that looks at recent field data and the status today, plus a machine learning process to integrate data and decisions with an automated controller,” he said. “Together this tells the user and the system what to do and when. The system is also unique in that it logs all of what it does, and all of this happens at the pivot.”

Utilizing tools such as real-time soil moisture monitoring, near-real-time and short-term predictive crop evapotranspiration or crop water use, quantitative precipitation forecasting and an artificial intelligence algorithm, he said they are able to automate the “when, where and how much” decisions of crop irrigation.

Development was conducted whereby the platform-independent control system could be retrofitted into existing center pivot irrigation systems. The project team has several patents pending as a result of the work, Marek said, adding this is one of the best research teams he’s worked with in his irrigation career.

Funding and in-kind support for the project was provided by a Texas A&M University System Water Seed Grant, AgriLife Research, AgriLife Extension, Texas A&M Engineering Experiment Station, High Plains Underground Water Conservation District, and the USDA-ARS Ogallala Aquifer Program.

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Board adopts 2018 ad valorem tax rate

During their Sept. 11 meeting, the High Plains Underground Water Conservation District (HPWD) Board of Directors approved a resolution setting the 2018 ad valorem tax rate at $0.0067 per $100 valuation for operation and maintenance of the district.

The adopted 2018 tax rate is 1.1 percent less than the effective tax rate. This slight reduction provides a similar amount of tax revenue as last year.

Persons with $100,000 in property value will pay $6.70 in annual taxes to HPWD under the approved rate, as compared to $6.90 in 2017. The HPWD 2019 fiscal year begins Oct. 1.

"The Board of Directors have lowered the tax rate each year since 2014. It is our priority to have balanced annual budgets. This allows us to reduce the tax rate for operation of the district, while at the same time, improve services for constituents in our 16-county service area," said Board President Lynn Tate of Amarillo.

In other business, the Board of Directors approved the Consent Agenda; approved applications for water well permits received in August 2018; amended the adopted 2018 budget for the end of fiscal year; conducted the annual review and adoption of the District's investment policy; and received an update on HPWD supported research from Dr. Dana Porter with Texas A&M AgriLife Research and Extension at Lubbock.

No executive session was convened.

Board meeting agendas and minutes are available online at www.hpwd.org/agendas.