1 / 10

ESTIMATION OF EVAPOTRANSPIRATION OF KUMULUR BY PAN EVAPORATION METHOD

ESTIMATION OF EVAPOTRANSPIRATION OF KUMULUR BY PAN EVAPORATION METHOD. BY, M.MANIVANNAN BTE-06-017. EVAPORATION PAN. CLASS A EVAPORATION PAN. SUNKEN COLORADO PAN. PRINCIPLE :. Installed in the field

vinson
Download Presentation

ESTIMATION OF EVAPOTRANSPIRATION OF KUMULUR BY PAN EVAPORATION METHOD

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. ESTIMATION OF EVAPOTRANSPIRATION OF KUMULUR BY PAN EVAPORATION METHOD BY, M.MANIVANNAN BTE-06-017

  2. EVAPORATION PAN • CLASS AEVAPORATION PAN

  3. SUNKEN COLORADO PAN

  4. PRINCIPLE : • Installed in the field • Filled with a known quantity of water (the surface area of the pan is known and the water depth is measured) • allowed to evaporate during a certain period of time (usually 24 hours). • After 24 hours, the remaining quantity of water (i.e. water depth) is measured • The amount of evaporation per time unit (the difference between the two measured water depths) is calculated; this is the pan evaporation: E pan (in mm/24 hours) • The E pan is multiplied by a crop coefficient, Kc, to obtain the ETo.

  5. FORMULA : ETo = KC × E pan ETo: reference crop evapotranspirationKC : crop coefficientE pan : pan evaporation

  6. KUMULUR PAN-EVAPORIMETER DATA 1998

  7. Table showing Kc value for cropc

  8. Calculation Table:

  9. Results: • Total Evapotranspiration in 1998= 1216.34 mm

More Related