1 / 44

AgriMet Network TWG 2012 Jama Hamel

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.

pearly
Download Presentation

AgriMet Network TWG 2012 Jama Hamel

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. AgriMet NetworkTWG 2012Jama Hamel

  2. AgriMet Network Expansion Since 1983

  3. AgriMet Partnerships • Over 25 entities, including: • Federal agencies • State agencies • Soil & water conservation districts • Universities • Public utilities • Private enterprise

  4. AgriMet Operations:Data Collection

  5. 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

  6. AgriMet Operations:ET Computation

  7. AgriMet uses the 1982 Kimberly-Penman ET model • Developed by USDA Agricultural Research Service in Kimberly, Idaho • Alfalfa based reference model

  8. 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)

  9. Generalized Crop Coefficients for Field and Row Crops From: Allen, R. G

  10. ET can vary considerably from one day to the next

  11. AgriMet Operations:Site Maintenance and Calibration

  12. Precision Relative Humidity/Temperature Chamber

  13. AgriMet Operations:Data Quality Control / Quality Assurance

  14. Automated Q/C • Satellite transmission quality checks • Upper and lower limit checks on sensor data • Rate of change between consecutive readings

  15. 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

  16. AgriMet Operations:Other Uses of AgriMet Data

  17. 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

  18. Other uses of AgriMet information: Verification and calibration of satellite technologies

  19. Other uses of AgriMet information: Source of ET data for “Smart Irrigation Controllers” for Turf Grass

  20. Questions?

More Related