irri-eye · irri-eye south australian trial for a satellite irrigation advisory service. guido...
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IRRI-EYEIRRI EYESouth Australian Trial for a
Satellite Irrigation Advisory Service.
Guido D’Urso 1,3, Michael Cutting2, Carlo De Michele3, Salvatore FalangaBolognesi3, Francisco J. Lozano4, Peter Toome5
1 University of Naples Federico II, Italy; 2 South Australian Murray-Darling Basin Natural ResourcesManagement Board, Strathalbyn, S. Australia; 3 ARIESPACE s.r.l., Spin off Company of University of NaplesFederico II, Italy; 4 DEIMOS Imaging S.L.U., Boecillo, Spain; 5 Aqualab Scientific Pty Ltd, Prospect, S.Australia
WHAT IS IRRIWHAT IS IRRI EYE?EYE?WHAT IS IRRIWHAT IS IRRI--EYE?EYE?
IRRI-EYE is an irrigation advisoryIRRI EYE is an irrigation advisory service based on high resolution satellite monitoring of canopysatellite monitoring of canopy development
IRRI-EYE provides farmers and water managers with real time irrigationmanagers with real-time irrigation water needs from field and irrigation unit to district and river basin scaleunit to district and river basin scale.
WhichWhich technologytechnology in IRRIin IRRI EYE?EYE?WhichWhich technologytechnology in IRRIin IRRI--EYE?EYE?
Maps of canopy development (Leaf Area Index, p py p ( ,
LAI, albedo, “effective” crop coefficient and soil
cover) are derived from high-resolution (20 m),
multispectral radiometric images of DEIMOS-1
satellite, delivered in near real time (36 hours)
and processed
Standard FAO-56 procedures are applied by p pp y
using in-situ agro-meteorological variables
Correction factor for irrigation methodCorrection factor for irrigation method
(sprinkler, drip, surface)
WhichWhich technologytechnology in IRRIin IRRI EYE?EYE?WhichWhich technologytechnology in IRRIin IRRI--EYE?EYE?
3 months
Harvesting
45 days
2 months
In field
From satellite
On the map
DEIMOSDEIMOS--1 20 m 1 20 m imageimage, 21 Jan.2012, 21 Jan.2012((RRGGBB==NIRNIR GG RR))((RRGGBB==NIRNIR, , GG, , RR))
LAILAI mapmapLAI LAI mapmap
WhichWhich technologytechnology in IRRIin IRRI EYE?EYE?WhichWhich technologytechnology in IRRIin IRRI--EYE?EYE?The output of this procedure is:
i) the calculation of an “effective” crop coefficient, which takes into account the crop variability at sub-plot scale;the crop variability at sub plot scale;
ii) the assessment of crop water requirements for a temporal interval of 7-9 days around the satellite acquisition date.
January
March
April
WhichWhich data aredata are givengiven toto thethe growersgrowers ??WhichWhich data are data are givengiven toto the the growersgrowers ??
Local agro-meteorological data 1 g g1
Data from agro-meteorological stations are used to g gcontinuously monitor precipitations and other agro-meteorological variables ( such as air temperature, humidity, wind speed, soil radiation) needed to calculate evapotranspiration.
Easy integration with other data at farm-level (i.e. from soil moisture sensors))
WhichWhich data aredata are givengiven toto thethe growersgrowers ??WhichWhich data are data are givengiven toto the the growersgrowers ??
Map of maximum ETp and Kc for the actual crop 2 p p pdevelopment and vigor: 2
Information for each parcel is derived periodically from satellite images with a spatial detail of 20 x g p20 meters (pixel size) and a revisit time of 7-10 days.
Satellite images are collected in the visible and in theSatellite images are collected in the visible and in the near-infrared and processed to calculate an “effective crop coefficient” which integrates the following parameters: g p
leaf area index, crop height, fraction of soil cover.
WhichWhich data aredata are givengiven toto thethe growersgrowers ??WhichWhich data are data are givengiven toto the the growersgrowers ??
Irrigation advices: 3 g
maximum irrigation volume3
The irrigation volume is calculated using the crop vigour map (derived from satellite data) , the potential ETp and effective rainfall
Data refer to a period of approx. 7 days and are expressed in ML/ha or duration of irrigation p / gsupply.
SA trialSA trialSA trialSA trialSOUTH AUSTRALIAN MURRAY-DARLING BASIN NATURAL
BOOKPURNONG (BL4EA) DISTRICT
November 2010 to April 2011:November 2010 to April 2011:Landsat 5 and 7 satellites imagestesting of the procedure and a comparison with
applied volumes for about 1100 ha (of whichapplied volumes for about 1100 ha (of which 470 ha citrus, 480 ha vines - winegrapes)
December 2011 to April 2012:December 2011 to April 2012:Real time processing and deliveryDEIMOS-1 images
http://www.deimos-imaging.com/
MeteorologicalMeteorological data networkdata networkMeteorologicalMeteorological data networkdata network
What type of information do we provide and What type of information do we provide and how ?how ?how ?how ?
Short text (SMS) and maps (email and dedicated webGIS
) f i i tiaccess) of irrigation volume expressed in cubic meters orcubic meters or duration of irrigation supply at user-definedsupply at user defined interval.Access is restricted toAccess is restricted to growers and basin authorities
How growers may access the data ?How growers may access the data ?How growers may access the data ?How growers may access the data ?
dedicated webGIS-site-dedicated webGIS-site- E-mail- SMS
1
2
The access page shows boundaries of plots onboundaries of plots on a typical Google map
How growers may access the data ?How growers may access the data ?How growers may access the data ?How growers may access the data ?
The window is organised in two FRAMES: MAP and DATA.iff l b l d f ll d liDifferent plots can be selected from a pull-down list
Data pannel
Map
Pannel
How growers may access the data ?How growers may access the data ?How growers may access the data ?How growers may access the data ?
1) Select plot in the MAP or in DATA frame) p
2) Query DATA frame: table or graphs
How growers may access the data ?How growers may access the data ?How growers may access the data ?How growers may access the data ?In the MAP frame, the icon open a list to select - for one or all the irrigated plots the following mapsirrigated plots – the following maps
AddsAdds--onon: : TravellingTravelling gungun calculatorcalculator
An An exampleexample ofof comparisoncomparison
cumulative irrigation requirements compared withrequirements compared with actual irrigation applications (2010-2011).
3.02.8 2.8
3.1
2.7
a] substantial
2.0
2.5
d av
erag
e [M
l/ha
Etp estimated (Ariespace
Etp
substantial concordance between satellite-based volumes and actual
0 5
1.0
1.5
Etp
cum
ulat
ed measured (Ruediger)
volumes and actual applications, but …
0.0
0.5
Citrus Fruit Vine Fruit
An An exampleexample ofof comparisoncomparison
Comparison for citrus crop coefficients (average and ± st.dev.Co pa so o c t us c op coe c e ts (a e age a d st de
0.732 0.733 0.7420.758
0.727
0.830
0.8
0.9
Kc
0.60 0.60
0.65
0.56 0.57
0.65
0.56
0.630.61
0.67
0.689
0.6240.645
0.607
0.727
0.6
0.7… large variability of crop development at the farm level0.56
0.4190.434
0.415
0.488
0.4
0.5level
0.2910.311
0.361
0.2880.315 0.325
0.2
0.3
average value avg
0.0
0.1
327
002
018
026
058
166
090
098
106
114
avg+s
avg-s
Tab. FAO
2010
3
2011
0
2011
0
2011
0
2011
0
2011
2011
0
2011
0
2011
1
2011
1
An An exampleexample ofof comparisoncomparison
Comparison for winegrapes (average and ± st.dev.)
0.938
0.8880.875
0 787
0.9
1.0
0.773 0.770 0.783
0.686
0.787
0.631
0.675
0.653
0.690
0.6
0.7
0.8
m
0.5330.567
0 347
0.416
0.448
0.388 0.383
0.6070.585
0.4360.458
0.4
0.5
Kc
m+sigma
m-sigma
0.3100.347
0.305 0.292
0.203
0.2470.222
0.201
0 1
0.2
0.3Tab FAO WINEGRAPE
0.0
0.1
0103
27
0110
02
0110
18
0110
26
0110
58
2011
66
0110
90
0110
98
0111
06
0111
14
20 20 20 20 20 2 20 20 20 20
satellite data
Some Some conclusions…conclusions… 1/21/2
Current irrigation scheduling in Bookpurnong is based on robustCurrent irrigation scheduling in Bookpurnong is based on robust meteorological information, but it considers standard values of crop coefficients from FAO tables and although this approach might be satisfactory at basin level it does not consider the large variability of cropsatisfactory at basin level, it does not consider the large variability of crop development at the farm level, due to different soil conditions and agronomic practices
Satellite-based approach takes into account these effects in an implicit way, thus allowing for a site-specific evaluation of irrigation volumes andway, thus allowing for a site specific evaluation of irrigation volumes and offer significant potential to achieve substantial improvements in water and energy efficiency at basin and farm levels and on the final quality of productionproduction
Some Some conclusions…conclusions… 2/2/22
Intuitive web-interface gives the growers the ability to monitor the canopy development at plot level in near-real time and the evaluation of net precipitation thanks to a better calculation of canopy interceptionnet precipitation, thanks to a better calculation of canopy interception based from satellite LAI values may reduce the irrigation application
The cost of the proposed service IRRI-EYE to final users is strongly dependent on the extension of irrigated area within each satellite imagedependent on the extension of irrigated area within each satellite image and the number of irrigated plots to be included in the database; as an indication, for a district area of about 3000 ha, the final cost is estimated around 12 AU$ per ha for the entire irrigation seasonaround 12 AU$ per ha for the entire irrigation season.
