James Brinkhoff

1.8K posts

James Brinkhoff

James Brinkhoff

@jamesbrinkhoff

Applied Agricultural Remote Sensing Centre, University of New England.

Armidale, NSW Katılım Kasım 2010
970 Takip Edilen720 Takipçiler
James Brinkhoff
James Brinkhoff@jamesbrinkhoff·
Hoping for clear skies around 11-12 when the Sentinel-2 satellite goes over, to get a clear image for updated rice grain moisture predictions @RiceExtension
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MIT CSAIL
MIT CSAIL@MIT_CSAIL·
What’s your favorite book about machine learning?
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James Brinkhoff
James Brinkhoff@jamesbrinkhoff·
@RiceExtension With PI fast approaching, imagery for N uptake predictions+maps is crucial. There was a delay in the (clear!) 25/12 image from the satellite provider, but it should be in the dashboards tomorrow (though still waiting on the cloud mask so may be marker 'prelim').
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James Brinkhoff
James Brinkhoff@jamesbrinkhoff·
Another huge effort from the @RiceExtension team pulling together another annual benchmarking report, full of insight into what makes the difference in rice yield and quality. Appreciate opportunity to contribute analyses, dashboards from our @AgriFuturesAU real-time rice project
Rice Extension@RiceExtension

The CY25 Annual Summary has arrived! A culmination of all the data, projects, insights and activities across the entire season, it's designed to be a valuable resource for anyone in the rice industry. Check it out⬇️ static1.squarespace.com/static/67f3437…

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James Brinkhoff
James Brinkhoff@jamesbrinkhoff·
@jimpelaJMC Interesting, and important! It's got me wondering if this is a significant source of yield variability that remote-sensing based models can't adequately characterise.
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James Brinkhoff
James Brinkhoff@jamesbrinkhoff·
CY26 #AustralianRice temperatures are down after a warm start, leading to later PI predictions. GDD is now similar to CY22, not as cold as CY23. Accumulated solar radiation is also down with a fair bit of cloud. @ricegrowers @RiceExtension Figures from new PI predictor app
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James Brinkhoff
James Brinkhoff@jamesbrinkhoff·
The fluctuations were due to variations in solar and sensor angles, atmosphere and S-2A vs S-2B sensor bias on RS time-series. Harmonized Landsat Sentinel-2 (HLS) and top of atmosphere (TOA) both had these fluctuations, and both benefited from our new correction methods.
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James Brinkhoff
James Brinkhoff@jamesbrinkhoff·
New paper in @IEEE_GRSS JSTARS: "Empirical Correction of Sentinel-2 Time Series Data to Enhance Real-Time Rice Crop Monitoring". We developed ML models to correct fluctuations in satellite time-series to improve real-time crop monitoring. Rice dashboards pre and post correction:
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James Brinkhoff
James Brinkhoff@jamesbrinkhoff·
The new PI predictor app for Aus rice - tips and tricks. Updates include: • Added flowering date • Includes underlying weather info • Simulation of phenology in previous years - see effect of hot/cold seasons on timing Available on @RiceExtension site.
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