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Frequently Asked Questions
FAQs on SWAN, the weather, and all things irrigation.
September 2023
October 2023
Where do the weather forecasts come from?
We purchase our forecasts for Australia from the Australian Bureau of Meteorology (BoM). The BoM run multiple forecast models using super computers, and teams of meteorologists refine the results using their extensive knowledge of local conditions. They produc...
Do I need a weather station?
If you already have a reliable weather station on your property, SWAN Systems can use the data from that when it calculates the soil moisture balance of your sites. SWAN can also use data from nearby weather stations, such as those owned by the BoM, other gove...
What if the forecast rain doesn’t eventuate?
The SWAN Systems model of your fields will be updated every time new information is received, this includes weather forecasts and observed rainfall at nearby weather stations. As the model steps through the days, forecasted rainfall amounts will be replaced wi...
How do you know that the SWAN estimate of soil moisture is accurate?
The algorithms used to calculate soil moisture balance have been tested in the field, and refined over many years of use in a variety of situations. As long as the parameters that are fed into the model have been set up appropriately, the estimations have been...
I’m a dryland farmer, can SWAN help me?
We certainly can. SWAN Systems is more than just about scheduling irrigation. The Site Health feature shows the health of your paddocks based on the latest NDVI satellite data. SWAN Systems can also help you plan and manage your fertiliser applications, and re...
Why doesn’t SWAN schedule from actual soil moisture probes?
Soil moisture probes (SMP) are valuable tools to monitor your soil moisture status, however their accuracy can vary and is dependent on many factors. Because of this SWAN does not include SMP data to generate an irrigation schedule. The factors that may affec...
When does the data get into SWAN?
Data is collected from a range of sources and uploaded into SWAN on a regular basis. The frequency depends on the type of data, and how often SWAN has been asked to collect the data. Forecast weather data is collected twice a day, once early in the morning, an...
I use greenhouses, can SWAN help me?
There is no reason why you cannot use SWAN Systems in a greenhouse but generally greenhouse operations use software designed specifically for greenhouses.
What if I don't have a flow meter / weather station on my property?
You don’t need to have a flow meter or weather station set up on your property in order to use SWAN. Although the ideal scenario would be to have a flow meter installed, valve nominal flows and irrigation events duration could be used to calculate your irriga...
Why should I believe what SWAN recommends?
SWAN Systems operates utilising scientifically proven algorithms backed up by many years farming and consulting to irrigation industries including agriculture and horticulture. Now that it is available as a software solution, anyone with a subscription can get...
Do I need to buy new equipment?
No, not at all! SWAN Systems has been designed to work with all common (and some not-so-common) brands of irrigation equipment, including many types of probes and weather sources. As long as your irrigation equipment is in good working order, and we can arrang...
What is Evapotranspiration (ET)? And what is ETo?
We'll quote the Australian Bureau of Meteorology (BoM) here, "Evapotranspiration is the term used to describe the part of the water cycle which removes liquid water from an area with vegetation and into the atmosphere by the processes of both transpiration and...
What is NDVI, and how does SWAN use it?
NDVI - Normalised Difference Vegetation Index - is calculated from satellite imagery data and provides an indication of overall plant health. SWAN uses the NDVI (see illustration below), calculated from satellite imagery data, as the basis for monitoring how ...
What is Weatherwise Watering?
Weatherwise Watering is a free weather forecast for Australia, provided by SWAN Systems. It is delivered direct to your email inbox every morning. To subscribe, just visit https://weatherwise.swansystems.com.au Weatherwise forecasts are the best that you can ...
What is a SWAN Systems Partner and how do I become one?
A SWAN Systems Partner is an individual or company that is at the forefront of Environmental Monitoring, Irrigated Horticulture and Agriculture, Public Open Space, and Natural Resources Management industries. Our Partners are committed to ensuring the irrigati...
Does SWAN Systems work on all internet browsers?
SWAN Systems has been optimised for use on Google Chrome, and also works with the latest version of Microsoft Edge, if tracking prevention is turned off.
Description of Health Indexes available via SWAN Systems
With the March 2021 release of SWAN Systems came a whole new suite of health indexes to assist you in monitoring the health of your plants. To find out which one is best suited to your needs, please refer to the list below. NDVI – Normalised Difference Vege...
Introduction to SWAN Systems new Impact Module.
Ivor Gaylard, COO of SWAN Systems, announces the release of SWAN Systems Impact Module. The Impact Module allows users to analyse Water Application Efficiency, record yields and values, and to report on Water Productivity.
SWAN Systems Data Hub - October 2023
Overview of the SWAN Systems Data Hub, which collects, stores, and displays data from any source including weather, water, nutrients, power usage, market values, satellite data, and more.
SWAN Systems Data Hub - October 2023
Overview of the SWAN Systems Data Hub, which collects, stores, and displays data from any source including weather, water, nutrients, power usage, market values, satellite data, and more.