Construção de campos de temperatura da superfície de rios para inserção em modelos de mesoescala
Carregando...
Arquivos
Data
Autores
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade do Estado do Amazonas
Resumo
The present work aims to propose three methods for the construction of spatial fields of surface temperature of rivers (SRT), from remote and interdisciplinary information.
situ, for insertion into mesoscale models. Remote information comes from
of the AQUA and TERRA satellites that have irregular temporal frequency (01:30, 10:30
,13:30 and 22:30 local time). In situ data, on the other hand, come from a station
meteorological station, installed on the banks of the Rio Negro, with regular temporal frequency.
To construct the TSR fields with a regular time frequency of 1/1h (method
1 and 2), remote and local information was combined using a weighting factor
calculated as a function of the observed RRT diurnal cycle. The observed data allowed
the increase in satellite data frequency and the construction of TSR fields in high
temporal resolution (1/1h). One of the methods developed for creating fields
of TSR, uses only information from satellites (method 3), targeting places where it is not
there is in situ surface temperature information. Despite the limitations, the methods
applied in the construction of the TSR fields were able to represent the characteristics
of rivers and temperature behavior within the diurnal cycle. Although it presents
limitations related to the temporal variation of temperature, method 2 was the method that
produced TSR fields with behavior closer to the observations, both in
in relation to the curve of the diurnal cycle in terms of temperature values.