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Istituto sull'inquinamento atmosferico

Torna all'elenco Contributi in rivista anno 2015

Contributo in rivista

Tipo: Articolo in rivista

Titolo: Effect of the Aerosol Model Assumption on the Atmospheric Correction over Land: Case Studies with CHRIS/PROBA Hyperspectral Images over Benelux

Anno di pubblicazione: 2015

Formato: Elettronico

Autori: Cecilia Tirelli; Gabriele Curci; Ciro Manzo; Paolo Tuccella; Cristiana Bassani

Affiliazioni autori: Department of Physical and Chemical Sciences, University of L'Aquila, Via Vetoio, Coppito, 67100 L'Aquila, Italy; Institute for Atmospheric Pollution Research (IIA), Italian National Research Council (CNR), Research Area of Rome 1, Via Salaria km 29,300, Monterotondo Scalo, 00016 Rome, Italy; Sorbonne Universités, UPMC Univ. Paris 06, Université Versailles St-Quentin, CNRS/INSU, LATMOS-IPSL, UMR, 8190 Paris, France

Autori CNR:

  • CRISTIANA BASSANI
  • CIRO MANZO

Lingua: inglese

Abstract: Surface reflectance has a central role in the analysis of land surface for a broad variety of Earth System studies. An accurate atmospheric correction, obtained by an appropriate selection of aerosol model, is the first requirement for reliable surface reflectance estimation. In the aerosol model, the type is defined by the physical and chemical properties, while the loading is usually described by the optical thickness at 550 nm. The aim of this work is to evaluate the radiative impact of the aerosol model on the surface reflectance obtained from Compact High Resolution Imaging Spectrometer (CHRIS) hyperspectral data over land by using the specifically developed algorithm CHRIS Atmospherically Corrected Reflectance Imagery (CHRIS@CRI) based on the 6SV radiative transfer model. We employed five different aerosol models: one provided by the AERONET inversion products (used as reference), three standard aerosol models in 6SV, and one obtained from the output of the GEOS-Chem global chemistry-transport model (CTM). The results obtained for the two case studies selected over Benelux show that in the absence of AERONET data on the scene, the best performing aerosol model is the one derived from CTM output.

Lingua abstract: inglese

Pagine da: 8391

Pagine a: 8415

Pagine totali: 25

Rivista:

Remote sensing Molecular Diversity Preservation International
Paese di pubblicazione:
Lingua: inglese
ISSN: 2072-4292

Numero volume: 7

Numero fascicolo: 7

DOI: 10.3390/rs70708391

Referee: Sì: Internazionale

Stato della pubblicazione: Published version

Parole chiave:

  • atmospheric correction; aerosol model; hyperspectral; CHRIS; CHRIS@CRI; GEOS-Chem; FlexAOD

URL: http://www.mdpi.com/2072-4292/7/7/8391

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