@InProceedings{MachadoLimaVila:2007:FoTe,
author = "Machado, L. uiz A. ugusto Toledo and Lima, Wagner and Vila,
Daniel",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE/CPTEC)} and
{Instituto Nacional de Pesquisas Espaciais (INPE/CPTEC)} and
{Cooperative Institute of Climate Studies (CICS/ESSIC)/University
of Maryland}",
title = "The Use of Satellite and Radar Data for Nowcasting: The ForTraCC
Technique",
booktitle = "Proceedings...",
year = "2007",
organization = "International Symposium on Remote Sensing of Environment, 32.",
keywords = "Convective system, nowcasting.",
abstract = "This study presents the ForTraCC (Forecasting and Tracking of
Cloud Cluster) technique using satellite and radar data. ForTraCC
is an algorithm for tracking and forecast the physical
characteristic of mesoscale convective systems (MCSs) through its
whole life cycle using the thermal channel information (10.8
{\`{\i}}m) of geostationary satellites or reflectivity (20 dBZ)
from CAPPI radar data. The cloud cluster detection method is based
on a threshold temperature or reflectivity; the morphological and
radiative parameters of each MCS are evaluated and tracking trough
the life cycle based on overlapping areas of MCSs in successive
images. The forecast is built taking into account the life cycle
history of each MCS, generating a virtual image for the next 120
minutes. The extrapolation is based on the possible displacement
of MCS (considering the position of the center of mass of the
cloud cluster in previous time steps) and its size evolution. The
use of this technique using radar data allow to obtain new
parameters for nowcasting. This part of the study combined the
volume scan from S band radar, operating during the RACCI/LBA,
with the ForTraCC algorithm. The ForTraCC output allows following
the rain cells during the life cycle. Rain cells were roughly
defined as the 20 dBz threshold. This procedure produced 2500 life
cycles to be analyzed. The preliminary results show the importance
of the cloud top rate as a tool for nowcasting of the intensity of
the convective cells in the next 30 minutes and allow describing
the characteristics of the reflectivity profiles of the rain cells
evolution during the life cycle. The ForTraCC technique using GOES
12 data is an operational tool available on line in the
following.",
conference-location = "San Jose, Costa Rica",
conference-year = "25 - 29 junho",
copyholder = "SID/SCD",
language = "en",
targetfile = "machado_use.pdf",
urlaccessdate = "16 jun. 2024"
}