%0 Journal Article
%4 sid.inpe.br/mtc-m21c/2019/01.16.16.31
%2 sid.inpe.br/mtc-m21c/2019/01.16.16.31.20
%@doi 10.1080/17538947.2018.1450901
%@issn 1753-8947
%T Atacama Field Campaign: laboratory and in-situ measurements for remote sensing applications
%D 2019
%8 Jan.
%9 journal article
%A Mattar, Cristian,
%A Santamaria-Artigas, Andres,
%A Ponzoni, Flávio Jorge,
%A Pinto, Cibele Teixeira,
%A Barrientos, Carolina,
%A Hulley, Glynn,
%@affiliation University of Chile
%@affiliation University of Maryland
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Aerial Photogrammetric Service (SAF), Chilean Air Force
%@affiliation Jet Propulsion Laboratory (JPL)
%@electronicmailaddress cmattar@uchile.cl
%@electronicmailaddress
%@electronicmailaddress flavio.ponzoni@inpe.br
%B International Journal of Digital Earth
%V 12
%N 1
%P 43-61
%K Atacama, spectroradiometry, emissivity, temperature, surface reflectance.
%X This work presents the preliminary results of the first field calibration campaign performed in the Atacama Desert, Chile, between the 18 and 22 August 2014, called the Atacama Field Campaign (ATAFIC 2014). In situ measurements were performed in order to spectrally characterize the surface reflectance spectra between 0.3 and 2.5 mu m, radiometric temperature (8.0-14.0 mu m) and atmospheric measurements. A soil sample was collected and analyzed using Fourier Transform Infrared Spectroscopy and X-Ray Diffraction techniques to characterize the surface reflectance spectra and mineralogical composition, respectively. ASTER land surface emissivity in addition to GOES, MODIS and Landsat-8 land surface temperature (LST) were also used. Results showed that the spectral features of the Atacama soil and the characteristics of this geographical zone, which is featured as the most hyper-arid and cloudless place in the world, make this area a potential target for surface reflectance characterization. Day and night LST comparison between field and remote sensing data are lower than 2 K and the Root Mean Square Error for land surface emissivity is close to 2%. This work opens the possibilities to consider the Atacama Desert as a reference target for calibration and validation activities for earth observation missions' purposes.
%@language en
%3 mattar_atacama.pdf