National Irrigation Database How much water is required, and when How much water was applied, and when How much excess water was used A national irrigation.

National Irrigation Database

•How much water is required, and when

•How much water was applied, and when

•How much excess water was used

A national irrigation database would contain data about...

...for every field in Australia

National Irrigation Database

• A great deal of detailed data is required.

• Some data is already being collected, if only it was available...

• How do we get the rest of the data ?

Google Maps could be the inspiration

Irrigators do the collecting

Existing data

• Water orders to Water Supply Authority

• Irrigation schedules calculated by irrigators

• Soil moisture measurements

If this data was also on the web it could be used by a national database

Google maps and Google Earth

• Defined an xml schema for GIS data.

• A data format that can be shared.

• Data in a file in this format can be shown on a map or aerial photograph.

• Water orders can also be read from the same file.

• A National Irrigation Database can read the same file.

Irrigator sends water order to Water Supply Authority

Amount+Date

phone/fax/email/webWater Supply

IrrigatorAuthority

What happens now

Irrigator enters order on web form

shedule.kml

Amount+Date

Irrigator calculatesAmount+Date

Irrigator

Water Supply

Web form to enterwater order

PC/ PDA/mobile/SMS

Orders via the web

What the Water Supply Authority would see

• Paul Torzillo requires 55 Ml on 13 February

• McWilliams requires 32 Ml on 12 February

What the National Database will see

FarmID SiteID Required(Ml)

Date DWU(mm/day)

7104 1 32.5 11 Feb 2007 3.6

7104 2 41.0 23 Feb 2007 4.5

7104 3 22.5 13 Feb 2007 4.3

7104 7 19.5 25 Feb 2007 3.7

7104 21 35.6 26 Feb 2007 3.5

What the irrigator would see

Irrigators who do not need to order water

shedule.xml

Amount+Date

Irrigator calculatesAmount+Date

Irrigator

Web form to enter wateramounts and dates

PC/ PDA/mobile

What the irrigator and Water Authority would see

Web form could also calculate water requirements

shedule.kml

Amount+Date

Irrigator

Web form calculates wateramounts and dates

crop water usefrom BOM

or weather stations

PC | PDA | mobile

Irrigators who measure soil moisture

web page

schedule.kml

Amounts+dates

Irrigator Consultant

Amount+date

Map page Scheduling software

What the irrigator and Water Authority would see

Soil moisture by telemetry to Water Authority

web page

schedule.kml

Amounts+dates

Irrigator

Amount+date Map pageScheduling software

Water Supply

radio/telemetry

What the irrigator and Water Authority would see

Using Google xml schema

• A standard format is required• The suggested format is the xml schema

used by Google Maps and Google Earth• This schema defines how data should be

formatted for GIS mapping• XML is extremely flexible• Standard interchange format for data on the

internet

Additional data

• XML is flexible - add extra data items

• Volume_Required, Date_Required

• Crop_Type, Daily_Water_Use

• Soil_Moisture_Status

• Total amount of water required by the end of the season

How the system would workNationalIrrigation Database

Amount, Date, DWU

schedule.kml

Irrigator Consultant

Water Supply

Google map

Web page

Web form

amounts and dates

crop water usefrom BOM

or weather stations

calculates water

Schedulingsoftware

Authority

What is required - XML schema

• Required_Volume (cu m)

• Required_Date

• Current_Soil_Moisture (mm)

• Crop_Daily_Water_Use (mm/day)

• Season Total_Volume_Required (cu m)

• Crop_Type

• GPS coordinates

What needs to be done

1 Web form for Irrigators to order water. Can also be used to calculate and post irrigation schedule.

2 Crop water use data to be available on the web in an agreed standard format.

3 Water Supply Authorities to be able to read and accept water orders in the agreed xml schema.

4 All irrigation scheduling software to output a schedule in the agreed xml schema.

5 A national irrigation database could then be set up that would also read the xml files.

National Irrigation Database

really quite simple

and achievable

Just calculations next...

Calculating water required: drip

amount required over next 7 days

Refill - driest below which plant is stressed

measuredsoil moisture

target moisture content

to maintain target moisture

Calculating water required: flood

amount required to bring back to full

Full - maximum water holding capacity

Refill - driest below which plant is stressed

measuredsoil moisture

rate moisture is falling date water should be applied

Calculating water required

amount required = crop water use * 7 days

Full point - maximum water holding capacity

Refill point - driest below which the plant is stressed