Average annual potential ET minus actual ET, for long-term (1958-2005) (mm/yr)

dataset: ENSYM_ET100_LAA_58TO05
Calculated using the Ensym model. The potential evapotranspiration minus actual un-saturated evapotranspiration calculation can be used to set an upper limit to groundwater evaporation rates. Ensym estimates daily spatial evapotranspiration by solving for physical processes using analytical solutions and empirical equations. Evaporation of water from the soil surface is calculated using a Ritchie's two-stage evaporation algorithim. After infiltration , drying occurs at the potential rate up to a specified limit (stage I) and thereafter at a rate reflecting diffusion processes that are assumed proportional to the square root of time (Stage II). In general transpiration is calculated as a function of pan evaporation, leaf area index, soil moisture content, plant density and temperature however the specifics of the calculations vary with landuse and the particular plant growth model utilised. For further information: https://ensym.dse.vic.gov.au/home/aboutensym Beverly, C., 2007. Technical Manual - Models of the Catchment Analysis Tool. Victoria. Department of Sustainability and Environment.
 
Citation proposal Citation proposal
(2013)

Average annual potential ET minus actual ET, for long-term (1958-2005) (mm/yr)

Department of Energy, Environment and Climate Action
 

Description

Title
Average annual potential ET minus actual ET, for long-term (1958-2005) (mm/yr) 
Alternate title
ENSYM_ET100_LAA_58TO05 
Purpose
Modelled evapotranspiration data can be used for: - water balance estimates - groundwater modelling inputs - landuse change impact modelling 
Status
Completed  
 
 

Contacts

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Keywords

Topic category
  • Inland waters
  • Farming
  • Climatology, meteorology, atmosphere
 
 

Constraints

Classification
Unclassified  
 
 

Extents

Description
General - Victoria 
 
 

Acquisition Info

RFQ Number
 
 

Metadata Constraints

Classification
Unclassified  
 
 

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