Transcript National Irrigation Database

National Irrigation Database
A national irrigation database would contain
data about...
•How much water is required, and when
•How much water was applied, and when
•How much excess water was used
...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 ?
Irrigators do the collecting
Google Maps could be the inspiration
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
Water Supply
Authority
phone/f ax/email/web
Irrigator
What happens now
Irrigator enters order on web form
shedule.kml
Amount+Date
Web form to enter
w ater order
PC/ PDA/mobile/SMS
Irrigator calculates
Amount+Date
Water Supply
Irrigator
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
Date
1
Required
(Ml)
32.5
7104
DWU
(mm/day)
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
Web form to enter w ater
amounts and dates
PC/ PDA/mobile
Irrigator calculates
Amount+Date
Irrigator
What the irrigator and Water
Authority would see
Web form could also calculate
water requirements
crop w ater use
from BOM
or w eather stations
shedule.kml
Amount+Date
Web form calculates w ater
amounts and dates
PC | PDA | mobile
Irrigator
Irrigators who measure soil moisture
schedule.kml
Amounts+dates
w eb page
Map page
Irrigator
Scheduling softw are
Amount+date
Consultant
What the irrigator and Water
Authority would see
Soil moisture by telemetry to Water
Authority
schedule.kml
Amounts+dates
Scheduling softw are
Amount+date
w eb page
Map page
radio/telemetry
Water Supply
Irrigator
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 work
crop w ater use
from BOM
or w eather stations
National
Irrigation
Database
schedule.kml
Amount, Date, DWU
Web form
calculates w ater
amounts and dates
Google map
Web page
Scheduling
sof tware
Water Supply
Authority
Irrigator
Consultant
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
measured
soil moisture
amount required over next 7 days
to maintain target moisture
target moisture content
Refill - driest below w hich plant is stressed
Calculating water required: flood
Full - maximum w ater holding capacity
measured
soil moisture
rate moisture is falling
amount required to bring back to full
date w ater should be applied
Refill - driest below w hich plant is stressed
Calculating water required
Full point - maximum w ater holding capacity
amount required = crop w ater use * 7 days
Refill point - driest below w hich the plant is stressed