Average annual potential ET minus actual ET, for wet years (1973 - 1975) (mm/yr)
dataset:
ENSYM_ET100_WET
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 wet years (1973 - 1975) (mm/yr) Department of Energy, Environment and Climate Action https://metashare.maps.vic.gov.au/geonetwork/srv/eng/catalog.search#/metadata/804e76a3-755a-5e80-8a1f-448773252744 |
- Description
- Temporal
- Spatial
- Maintenance
- Format
- Contacts
- Keywords
- Resource Constraints
- Lineage
- Metadata Constraints
- Quality
Description
- Title
- Average annual potential ET minus actual ET, for wet years (1973 - 1975) (mm/yr)
- Alternate title
- ENSYM_ET100_WET
- Resource Type
- Dataset
- Purpose
- Modelled evapotranspiration data can be used for: - water balance estimates - groundwater modelling inputs - landuse change impact modelling
- Supplemental Information
- Related Documents: None
- Status
- Completed
Temporal
- Time period
- 2011-10-012011-11-28
Spatial
- Spatial representation type
- Grid
- Horizontal Accuracy
- 100m
- Code
- 4283
- Description
- General - Victoria
N
S
E
W
![](https://metashare.maps.vic.gov.au/geonetwork/srv//eng/region.getmap.png?mapsrs=EPSG:3857&width=500&background=osm&geomsrs=EPSG:4326&geom=POLYGON((150 -39,150 -34,141 -34,141 -39,150 -39)))
Maintenance
- Maintenance and update frequency
- As needed
Format
- Title
- DIGITAL - ArcView ascii grid 3
Contacts
Point of contact
Department of Energy, Environment and Climate Action
-
Charles Showers
1 McKoy street
Wodonga
Vic
3690
Australia
Cited responsible party
No information provided.
Cited responsible party
No information provided.
Cited responsible party
No information provided.
Keywords
- Topic category
-
- Inland waters
- Farming
- Climatology, meteorology, atmosphere
Resource Constraints
- Use limitation
- Available under license. All use must be approved by the DSE ecoMarkets data custodian.
- Classification
- Unclassified
Lineage
- Statement
- Dataset Source: Evapotranspiration estimates are sourced from the DSE Ensym model. Dataset Originality: Primary
Metadata Constraints
- Classification
- Unclassified
Quality
Attribute Quality
- Comments
- Estimates of evapotranspiration vary in accuracy based on input datasets. Variability in temperature recordings and plant growth modelling add the highest uncertainty in ET estimates.
Positional Accuracy
- Comments
- Precision: 10 - 100m Determination: Based on the scale of input datasets
Conceptual Consistency
Missing Data
- Comments
- State of Victoria
Excess Data
Overviews
Graphic Overview of Data Footprint
Provided by
![](https://metashare.maps.vic.gov.au/geonetwork/srv/../images/logos/1bfbc06b-d501-4652-9c87-d3ff371cea59.png)
Views Views
804e76a3-755a-5e80-8a1f-448773252744
Access to the portal Access to the portal
Read here the full details and access to the data. Read here the full details and access to the data.
Associated resources
Not available