@Article{BottinoCeba:2015:DaClCl,
author = "Bottino, Marcus Jorge and Ceballos, Juan Carlos",
affiliation = "CEMADEN and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Daytime cloud classification over South American region using
multispectral GOES-8 imagery",
journal = "International Journal of Remote Sensing",
year = "2015",
volume = "36",
number = "1",
pages = "1--19",
keywords = "Factor analysis, Geostationary satellites, Luminance,
Microcomputers, Multivariant analysis, Reflection, Satellite
imagery, Temperature, Textures Brightness temperatures,
Classification scheme, Cloud classification, Euclidean distance,
Geostationary operational environmental satellites, Multi-spectral
imagery, Principal Components, Temperature differences.",
abstract = "Information about a minimal set of characteristic variables and
types of scene was searched for Geostationary Operational
Environmental Satellite (GOES)-8 Imager multispectral imagery over
an extended area of South America, September 2002, 1600 UTC (near
local noon over most parts of the area). Thirteen variables were
considered for each pixel: five of them described reflectance and
brightness temperature in four channels, three variables assessed
temperature difference related to channel 4; finally, five
variables assessed local homogeneity (texture) in each channel.
Thirty-two clusters were determined by a classification scheme
(dynamic cluster) based on minimal Euclidean distance. Factor
analysis in principal components (PCs) applied to cluster
centroids shows that only five variables might be taken as
non-redundant, namely reflectance in channel 1 and brightness
temperature in channel 4 as well as their textures, together with
difference between channels 5 and 4. Although factor analysis
suggests defining about seven clusters (which in turn are
consistent with image nephanalysis), PC analysis makes it evident
that an objective minimal number of scenes is actually loosely
defined but provides some useful criteria for definition of proper
centroids, depending on the users convenience.",
doi = "10.1080/01431161.2014.978953",
url = "http://dx.doi.org/10.1080/01431161.2014.978953",
issn = "0143-1161",
label = "self-archiving-INPE-MCTI-GOV-BR",
language = "en",
urlaccessdate = "27 abr. 2024"
}