@InProceedings{SantosSilvSantBrag:2013:DiMoEs,
author = "Santos, Francineide Amorim Costa and Silva, Bernardo Barbosa da
and Santos, Carlos Antonio Costa dos and Braga, Alexandra Chaves",
title = "Diferentes modelos de estimativa da radia{\c{c}}{\~a}o de onda
longa a partir de dados MODIS/TERRA",
booktitle = "Anais...",
year = "2013",
editor = "Epiphanio, Jos{\'e} Carlos Neves and Galv{\~a}o, L{\^e}nio
Soares",
pages = "8698--8705",
organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 16. (SBSR)",
publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
address = "S{\~a}o Jos{\'e} dos Campos",
abstract = "The objective of this study is to analyze the accuracy of
different methods to estimate the surface downwelling and
upwelling longwave radiation (LWR) using data from Moderate
Resolution Imaging Spectroradiometer (MODIS) onboard the satellite
Terra. For downwelling LWR three methods were used which is
conventionally called SEBAL (S), METRIC (M) and Bisht (B). For
application of the methods SEBAL and METRIC need only data for air
temperature, which is easily obtained from the weather station.
The method proposed by Bisht was processed in a completely
autonomous form because the air temperature, as well as the dew
temperature, were obtained from MODIS/ TERRA data. The upwelling
LWR was estimated from a single mode, only with remote sensing
data. The SEBAL method demonstrated greater accuracy, followed by
METRIC, with standard deviations of 19 and 20 Wm-2, respectively.
Finally, the Bisht method showed that errors introduced were above
the acceptable precision (36 Wm-2). It was also examined the
emissivities estimated by each method, as well as their impact on
the accuracy of longwave radiation data. It is observed that the
performance not so satisfactory of the Bisht methodology is due to
estimate of the atmosphere emissivity, whose performance was not
as good as the others. This is due to the fact of that the air
temperature data obtained of the MODIS sensor were 2 3° higher
than air temperature measured on the meteorological towers.",
conference-location = "Foz do Igua{\c{c}}u",
conference-year = "13-18 abr. 2013",
isbn = "{978-85-17-00066-9 (Internet)} and {978-85-17-00065-2 (DVD)}",
label = "550",
language = "pt",
organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
ibi = "3ERPFQRTRW34M/3E7GE38",
url = "http://urlib.net/ibi/3ERPFQRTRW34M/3E7GE38",
targetfile = "p0550.pdf",
type = "Sensoriamento Remoto e Mudan{\c{c}}as Globais",
urlaccessdate = "15 jun. 2024"
}