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AgriMet Network TWG 2012 Jama Hamel . AgriMet Network Expansion Since 1983. AgriMet Partnerships. Over 25 entities, including: Federal agencies State agencies Soil & water conservation districts Universities Public utilities Private enterprise. AgriMet Operations: Data Collection.

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Agrimet network twg 2012 jama hamel

AgriMet NetworkTWG 2012Jama Hamel



Agrimet partnerships
AgriMet Partnerships

  • Over 25 entities, including:

    • Federal agencies

    • State agencies

    • Soil & water conservation districts

    • Universities

    • Public utilities

    • Private enterprise


Agrimet operations data collection
AgriMet Operations:Data Collection


Hourly data transmissions
Hourly Data Transmissions

  • Channel 170 (100% HDR in 2008)

  • Transmit from 00:15:00 to 00:30:00

  • Stations transmit alphabetically

  • Data posted to the website each hour


Agrimet operations et computation
AgriMet Operations:ET Computation


Agrimet uses the 1982 kimberly penman et model
AgriMet uses the 1982 Kimberly-Penman ET model

  • Developed by USDA Agricultural Research Service in Kimberly, Idaho

  • Alfalfa based reference model


Crop coefficients relate reference et to crop specific et
Crop coefficients relate reference ET to crop specific ET:

ETc = ETrx Kc

ETc Specific Crop Consumptive Use

ETr Reference Evapotranspiration (Alfalfa)

Kc Crop Coefficient (varies with time)




Agrimet operations site maintenance and calibration
AgriMet Operations:Site Maintenance and Calibration



Agrimet operations data quality control quality assurance
AgriMet Operations:Data Quality Control / Quality Assurance


Automated q c
Automated Q/C

  • Satellite transmission quality checks

  • Upper and lower limit checks on sensor data

  • Rate of change between consecutive readings


Manual q c
Manual Q/C

  • Every morning, data graphically reviewed

  • Geographically similar stations grouped

  • All weather parameters reviewed

  • Bad data estimated or deleted

  • Dependent computations (ET) recomputed


Agrimet operations other uses of agrimet data
AgriMet Operations:Other Uses of AgriMet Data


Other uses of agrimet information
Other uses of AgriMet information

  • National Weather Service

  • State DEQ investigate pesticide application and ground water contamination issues

  • Electric utilities model heating/air conditioning and peaking power requirements

  • State water departments


Other uses of agrimet information1
Other uses of AgriMet information:

Verification and calibration of satellite technologies


Other uses of agrimet information2
Other uses of AgriMet information:

Source of ET data for “Smart Irrigation Controllers” for Turf Grass



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