@InProceedings{NogueiraRuffChuvMoui:2017:EvFiPa,
author = "Nogueira, Joana Messias Pereira and Ruffault, Julien and Chuvieco,
Emilio and Mouillot, Florent",
title = "Global burned area products from remote sensing: an evaluation of
fire patch metrics for regional applications in Brazil",
booktitle = "Anais...",
year = "2017",
editor = "Gherardi, Douglas Francisco Marcolino and Arag{\~a}o, Luiz
Eduardo Oliveira e Cruz de",
pages = "3592--3599",
organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 18. (SBSR)",
publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
address = "S{\~a}o Jos{\'e} dos Campos",
abstract = "Global burned area (BA) datasets from remote sensing provide
fruitful information for carbon emissions and for Dynamic Global
Vegetation Models (DGVM) benchmarking. Patch level analysis
recently emerged as an additional informative feature of the fire
regime. We evaluated a step further the ability of global BA
products to accurately represent fire patch features, in the
fire-prone Brazilian savannas. We used the pixel-level burned area
from LANDSAT, MODIS MCD45A1 and the European Space Agency (ESA)
fire Climate Change Initiative (FIRE_CCI) for the period 2002-2009
to identify individual fire patches that we compared by linear
regressions. Correlations between patch areas showed R2>0.6 for
all comparisons, with a slope of 0.99 between FIRE_CCI and MCD45A1
but a lower slope (0.6 - 0.8) when compared to the LANDSAT data.
Shape complexity was less correlated (R2 = 0.5) between global
products, and R2=0.2 between global products and the LANDSAT data,
due to coarser resolution. For the morphological features of the
ellipse fitted over fire patches, R2 reached 0.6 for the ellipses
eccentricity and varied from 0.4 to 0.8 for its azimuthal
directional angle. We conclude that global BA products
underestimate BA due to missing small fires, but also
underestimate patch areas. Patch complexity is the least
correlated variable, but ellipse features appear to be reliable
information to be further used for quality product assessment,
global pyrogeography or DGVM benchmarking.",
conference-location = "Santos",
conference-year = "28-31 maio 2017",
isbn = "978-85-17-00088-1",
label = "59285",
language = "en",
organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
ibi = "8JMKD3MGP6W34M/3PSLT8F",
url = "http://urlib.net/ibi/8JMKD3MGP6W34M/3PSLT8F",
targetfile = "59285.pdf",
type = "Geoprocessamento e aplica{\c{c}}{\~o}es",
urlaccessdate = "05 maio 2024"
}