Agrimet network twg 2012 jama hamel
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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

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Agrimet network twg 2012 jama hamel

AgriMet NetworkTWG 2012Jama Hamel


Agrimet network twg 2012 jama hamel

AgriMet Network Expansion Since 1983


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 network twg 2012 jama hamel

Generalized Crop Coefficients for Field and Row Crops

From: Allen, R. G


Et can vary considerably from one day to the next

ET can vary considerably from one day to the next


Agrimet operations site maintenance and calibration

AgriMet Operations:Site Maintenance and Calibration


Precision relative humidity temperature chamber

Precision Relative Humidity/Temperature Chamber


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


Agrimet network twg 2012 jama hamel

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