@InProceedings{AravequiaKaln:2006:ObOpEs,
author = "Aravequia, Jos{\'e} Antonio and Kalnay, Eugenia",
affiliation = "Instituto Nacional de Pesquisas Espaciais (INPE), Centro de
Previs{\~a}o de Tempo e Estudos Clim{\'a}ticos (CPTEC) and
Department of Atmospheric ans Oceanic Science, University of
Maryland",
title = "Observation operator and estimation of uncertainty in the
assimilation of AIRS radiances using ensemble Kalman Filter",
booktitle = "Abstracts...",
year = "2006",
organization = "International TOVS Study Conference, 15.",
keywords = "atmospheric, radiances space, temperature, humidity, ozone, carbon
dioxide, methane, gases.",
abstract = "In this work we consider the uncertainty of a 40 ensemble member
run with an ensemble Kalman filter on the GEOS-4, both in the
atmospheric model ensemble space and in the corresponding
radiances space, obtained by applying the CRTM forward model to
each model state over whole domain to the subset of 324 channels
of AIRS. By calculating the weighting function profile and finding
the level of its maximum, we are able to indicate the atmospheric
levels where the satellite observation will most strongly affect
the model state in the LETKF analysis. The radiance fields
obtained show where the model uncertainties in the ensemble are
and also where the assimilation of AIRS radiances should have a
significant impact on the reduction of forecast error.",
conference-location = "Maratea, Italy",
conference-year = "Oct.04-10",
copyholder = "SID/SCD",
language = "en",
organisation = "CIMSS, ECMWF, EUMETSAT, FPDT-NESDIS",
targetfile = "Aravequia.poster.observation.pdf",
url = "http://cimss.ssec.wisc.edu/itwg/",
urlaccessdate = "27 abr. 2024"
}