{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,13]],"date-time":"2026-03-13T13:09:38Z","timestamp":1773407378352,"version":"3.50.1"},"reference-count":44,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2013,3,1]],"date-time":"2013-03-01T00:00:00Z","timestamp":1362096000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>A processing of remotely-sensed Fraction of Absorbed Photosynthetically Active Radiation (fAPAR) time series at 1-km spatial resolution is established to estimate sugarcane yield over the state of S\u00e3o Paulo, Brazil. It includes selecting adequate time series according to the signal spatial purity, using thermal time instead of calendar time and smoothing temporally the irregularly sampled observations. A systematic construction of various metrics and their capacity to predict yield is explored to identify the best performance, and see how timely the yield forecast can be made. The resulting dataset not only reveals a strong spatio-temporal structure, but is also capable of detecting both absolute changes in biomass accumulation and changes in its inter-annual variability. Sugarcane yield can thus be estimated with a RMSE of 1.5 t\/ha (or 2%) without taking into account the strong linear trend in yield increase witnessed in the past decade. Including the trend reduces the error to 0.6 t\/ha, correctly predicting whether the yield in a given year is above or below the trend in 90% of cases. The methodological framework presented here could be applied beyond the specific case of sugarcane in S\u00e3o Paulo, namely to other crops in other agro-ecological landscapes, to enhance current systems for monitoring agriculture or forecasting yield using remote sensing.<\/jats:p>","DOI":"10.3390\/rs5031091","type":"journal-article","created":{"date-parts":[[2013,3,1]],"date-time":"2013-03-01T13:09:27Z","timestamp":1362143367000},"page":"1091-1116","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":49,"title":["Enhanced Processing of 1-km Spatial Resolution fAPAR Time Series for Sugarcane Yield Forecasting and Monitoring"],"prefix":"10.3390","volume":"5","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6471-8404","authenticated-orcid":false,"given":"Gr\u00e9gory","family":"Duveiller","sequence":"first","affiliation":[{"name":"Monitoring Agricultural Resources (MARS) Unit, Institute for Environment and Sustainability (IES), European Commission Joint Research Centre, Via E. Fermi, 2749, I-21027 Ispra (VA), Italy"}]},{"given":"Ra\u00fal","family":"L\u00f3pez-Lozano","sequence":"additional","affiliation":[{"name":"Monitoring Agricultural Resources (MARS) Unit, Institute for Environment and Sustainability (IES), European Commission Joint Research Centre, Via E. Fermi, 2749, I-21027 Ispra (VA), Italy"}]},{"given":"Bettina","family":"Baruth","sequence":"additional","affiliation":[{"name":"Monitoring Agricultural Resources (MARS) Unit, Institute for Environment and Sustainability (IES), European Commission Joint Research Centre, Via E. Fermi, 2749, I-21027 Ispra (VA), Italy"}]}],"member":"1968","published-online":{"date-parts":[[2013,3,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"949","DOI":"10.3390\/rs5020949","article-title":"Advances in remote sensing of agriculture: Context description, existing operational monitoring systems and major information needs","volume":"5","author":"Atzberger","year":"2013","journal-title":"Remote Sens"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Rembold, F., Atzberger, C., Rojas, O., and Savin, I. (2013). Using low resolution satellite imagery for yield prediction and yield anomaly detection. Remote Sens., under review.","DOI":"10.3390\/rs5041704"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"523","DOI":"10.1016\/j.rse.2004.11.012","article-title":"Discrimination of sugarcane varieties in Southeastern Brazil with EO-1 Hyperion data","volume":"94","author":"Formaggio","year":"2005","journal-title":"Remote Sens. 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