Evaluation of different approaches for the retrieval of sun-induced fluorescence

• Grant number: 21/06477-0
• Support Opportunities: Scholarships abroad - Research Internship - Scientific Initiation
• Start date: September 29, 2021
• End date: December 20, 2021
• Field of knowledge: Interdisciplinary Subjects
• Principal Investigator: Newton La Scala Júnior
• Grantee: Luis Miguel da Costa
• Supervisor: Roberto Colombo
• Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil
• Institution abroad: Università degli Studi di Milano-Bicocca, Italy
• Associated to the scholarship: 19/25812-4 - Spatiotemporal variability of atmospheric CO2 anomalies in Brazilian biomes, BP.IC

Abstract

The detection of Sun-Induced Fluorescence (SIF) by several sensors has opened new possibilities of studying the carbon cycle in the globe, however, the use of airborne sensors is still very low, despite their higher spatial resolution. Considering the potential of this technology, the objective of this project is to use different SIF monitoring techniques and indirectly validate them using the SCOPE model to relate the SIF to the GPP and possibly identify carbon sinks, for this, the work will be conducted in Grosseto - Italy. HyPlant sensors, OCO-2, and FLOX system will be used to obtain data about the SIF. Using the SCOPE model, the SIF will be simulated for different phenological stages. The data will be submitted to descriptive statistical analysis, Pearson correlation analysis, and linear regression with adjustment estimation of the coefficient of determination, also the experimental variogram model of the spatialization will be in function of the distances between two locations. At the end of this study, it is intended to elucidate questions regarding the spatiotemporal variability of the SIF and its relation with CO2 sinks. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DA COSTA, LUIS MIGUEL; DE MENDONCA, GISLAINE COSTA; DE ARAUJO SANTOS, GUSTAVO ANDRE; DE MORAES, JOSE REINALDO DA SILVA CABRAL; COLOMBO, ROBERTO; PANOSSO, ALAN RODRIGO; LA SCALA, NEWTON. High spatial resolution solar-induced chlorophyll fluorescence and its relation to rainfall precipitation across Brazilian ecosystems. Environmental Research, v. 218, p. 11-pg., 2023-02-01. (19/25812-4, 21/06477-0)