integrating satellite-based mapping and field observations
TRANSCRIPT
Integrating satellite-based mapping and field observations for improved decisions on rice
We need information for improved decision making on rice
We need information for improved decision making on rice
accurate accurate, detailed accurate, detailed, timely accurate, detailed, timely, location-specific
like remote sensing, crop modeling, smartphones and web platforms… to generate information on the where, when, and how much of rice, as well as crop health and flood/drought damage assessments.
philippinericeinfo.ph
Remote sensing based Information and Insurance for Crops in Emerging economies
www.riice.org
Leveraging on new technologies…
Field surveys • Location • Field characteristics • Crop growth • Yield (Crop cut) • Animal pests,
diseases and weeds
Smartphone-based surveys
Smartphone-based surveys
Farmer interviews • Crop
management practices
• Farmer’s estimated yield
• Main – RIICE/PRISM ODK Collect – Pocket LAI
• Support – Zxing Barcode reader – GPS Status – Aldiko Book Reader
• Optional – Camera FV Lite – GPS Essential
Applications
ODK collect
Pocket LAI
• An app that indirectly estimates leaf area index (LAI).
• Application developed by the University of Milan
© ESA/ATG medialab www.esa.int/spaceinimages/Images/2014/02/Sentinel-1
Remote sensing
Sentinel-1a • Launched 3rd/April/2014 by ESA • 12 day repeat frequency • 20m resolution • Free and open access to imagery • SAR sensor – perfect for rice • A second satellite - Sentinel-1b - will further increase monitoring capabilities, one image every 6 days
Coverage
radar images vs optical images
Settlements, built up areas
Canals/Rivers
Ponds, aquaculture
Rice area, colours indicate different
planting dates
Rice paddies and bunds
Nam Dinh, Vietnam: images on May 26, July 13 and July 29
One hectare and one square km
SAR data in RIICE are provided by ASI/e-GEOS and GISTDA from COSMO-SkyMed and by InfoTerra GmbH from TerraSAR-X.
Mapping rice from space
Changes in these images over time are used to map where rice is grown, when it is grown and how much rice is harvested
Preparation Emergence
Tillering
Flowering
Start of Season (SoS) Peak of Season (PoS) End of Season (EoS)
Ripening
Day 16 Day 32 Day 48 Day 64 Day 80 Day 96 Day 1
Inte
nsity
of t
he s
igna
l Continuous monitoring through the season
Seasonal Rice Area (RA)
Harvesting
ORYZA2000 (IRRI)
MAPscape-RICE
(sarmap)
Variety
Meteo
Variety
Management
Field results
Yield estimation
Rice-YES
Where? Rice area
Overall accuracy 88%
Central Luzon, Philippines
When? Planting dates & seasonality
0
20
40
60
80
100
120
Jun Jul Aug Sep
Area
pla
nted
to ri
ce (
000
ha)
Month
Central Luzon, Philippines
How much? Yield forecasts and estimates
Accurate, detailed and timely data on yield Our forecast: Oct 2014 = 5.40 t/ha Government forecast: Oct 2014 = 5.48 t/ha Our end-of-season estimate: Nov 2014 = 5.30 t/ha Government estimate: Mar 2015 = 5.31 t/ha Accuracy = 86%
Central Luzon, Philippines
Eastern Leyte, Philippines
Typhoon Haiyan
(Nov 2013)
Flood Map
Data on animal pest injuries
0
5
10
15
20
Inci
denc
e %
Disease Pest injury
Floridablanca, Philippines, 2014 WS
Incidence of insect pest injuries and diseases
Delivery of information
Server and Database system
Secondary data
Smartphones
Satellite
Web-based system
Delivery of information
Information are available for the following countries: Cambodia, Indonesia, Philippines, Thailand, Vietnam, and India
Bridging data and users
Satellite data
Weather, soil, etc.
Field measurements
Remote sensing
Crop modeling
GIS & WebGIS
Databases
Models
Expert knowledge
Rice area & planting dates
Actual yields & forecasts
Yield gaps & causes
Flood & drought
Pests & diseases
Data Technology Information Users
Statistical agencies
Policy makers
Disaster response team
Crop insurance providers
Researchers
Remote sensing based Information and Insurance for Crops in Emerging economies.
philippinericeinfo.ph www.riice.org