@InProceedings{ChouBustGomeRoza:2000:EtMoFo,
author = "Chou, Sin Chan and Bustamante, Josiane F. and Gomes, Jorge L. and
Rozante, Jose Roberto",
affiliation = "{CPTEC-INPE-Cachoeira Paulista-12630-000-SP-Brasil}",
title = "Eta model forecasts over South America with improved land-surface
processes representation",
booktitle = "Proceedings...",
year = "2000",
pages = "184--185",
organization = "International Conference on Southern Hemisphere Meteorology and
Oceanography, 6.",
publisher = "American Meteorological Society",
keywords = "eta model region, verification model.",
abstract = "The Centro de Previsao de Tempo e Estudos Climaticos (CPTEC) in
Brazil has been running operationally the regional Eta model and
producing 60-hour forecasts over South America on a twice-a-day
basis. The forecasts have been satisfactory but some deficiency in
the near surface variables has been noticed. A crude treatment of
the land-surface processes based on the Bucket scheme may be
responsible in part for the deficiencies. In this study another
version of the model with the CAPS scheme, which contains
vegetation and soil properties, is evaluated and compared for
short-term forecasts. The model is run with NCEP analyses as
initial conditions, and CPTEC/COLA global model forecasts as
lateral boundary conditions. Model resolution is 40 km and 38
layers and had the top raised to 25 mb. The new scheme has 12
vegetation types and two soil layers. Short-term forecasts
produced during one transition season are evaluated based on
statistical scores, such as equitable threat scores of
precipitation, root mean square error and forecast bias of
temperature, humidity and wind. These scores are calculated for
different forecast lead times, and 4 different sectors of the
domain. Two case studies are also shown to illustrate the
predicted fields during tropical convection in the Amazon region
and a cold frontal passage in the Southeastern part of the
continent. These cases are validated with surface observations.",
conference-location = "Santiago -Chile",
conference-year = "3-7 Apr.",
copyholder = "SID/SCD",
language = "en",
ibi = "x6e6X3pFwXQZ3DUS8rS5/CmSHJ",
url = "http://urlib.net/rep/x6e6X3pFwXQZ3DUS8rS5/CmSHJ",
targetfile = "11047.pdf",
urlaccessdate = "15 jan. 2021"
}