SURFACE TEMPERATURE ANALYSIS OF A COASTAL LAGOON INTEGRATED WITH ORBITAL AND MICROMETEOROLOGICAL DATA DURING THE PASSAGE OF FRONT SYSTEMS

Authors

  • Marilei Bender Xavier Universidade Federal do Rio Grande do Su
  • Sílvia Beatriz Alves Rolim Universidade Federal do Rio Grande do Sul
  • Gervásio Annes Degrazia Universidade Federal do Rio Grande do Sul
  • Waterloo Pereira Filho Universidade Federal de Santa Maria

DOI:

https://doi.org/10.5902/2179460X12541

Keywords:

Remote Sensing. Frontal Systems. Micrometeorology.

Abstract

http://dx.doi.org/10.5902/2179460X12541

Water bodies have a very dynamic with different characteristics that undergo changes with the passage of frontal systems. These water systems are influenced by the air temperature, wind and other meteorological quantities. This study presents a method to measure the surface temperature of a coastal lagoon located in southern Brazil using satellite images. During the winter months of 2006 (June, July and August) the surface temperature of the pond was analyzed in the occurrence of six cold frontal systems that passed in the state of Rio Grande do Sul. Surface temperature was estimated from the product MOD11-Surface Temperature and Emissivity, of the sensor Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the EOS-TERRA orbital platform. The results showed that the temperature of the pond decreases after the passage of cold fronts and can be influenced by wind and ambient temperature. The maximum temperatures recorded in the northern region of the lagoon are on average 5 ° C higher at the front entrance than at the exit of cold fronts. This increase is related to the input of nutrients coming from the marsh of Taim. This analysis shows that measures of surface temperature in ponds, obtained by the MODIS sensor, are a feasible and efficient tool to establish relations with the wind originated during the passage of frontal systems.

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Author Biographies

Marilei Bender Xavier, Universidade Federal do Rio Grande do Su

É graduada em Estatística e Mestre em Sensoriamento Remoto pela Universidade Federal do Rio Grande do Sul (UFRGS). Atualmente é
professora na Universidade de Santa Cruz do Sul, RS (UNISC) e doutoranda do Programa de Pós-Graduação em Sensoriamento Remoto
da UFRGS.

Sílvia Beatriz Alves Rolim, Universidade Federal do Rio Grande do Sul

Possui graduação em Geologia pela Universidade Federal do Rio Grande do Sul (UFRGS/1988), mestrado em Sensoriamento Remoto pelo Instituto Nacional de Pesquisas Espaciais (1992) e doutorado em Geociências pela Universidade Estadual de Campinas (2001). Coordenou o Programa de Pós Graduação em Sensoriamento Remoto (PPGSR) de 2007 a 2010. Atualmente é professora Associada DE da UFRGS e pesquisadora permanente do PPGSR do Centro Estadual de Pesquisa em Sensoriamento Remoto e Meteorologia (CEPSRM). É Presidente da Câmara de Pós-Graduação, Membro do Conselho de Ensino, Pesquisa e Extensão (CEPE) e do Conselho Universitário da UFRGS.

Gervásio Annes Degrazia, Universidade Federal do Rio Grande do Sul

Possui graduação em Bacharelado Em Física pela Universidade Federal do Rio Grande do Sul (1979) , mestrado em Mestrado Em Física pela Universidade Federal do Rio Grande do Sul (1984) , doutorado em Doutorado Em Ciências Naturais pela Karlsruher Institut für Technologie (1988) e pós-doutorado pelo Consiglio Nazionale delle Ricerche (1998) . Atualmente é Professor Associado da Universidade Federal de Santa Maria.

Waterloo Pereira Filho, Universidade Federal de Santa Maria

Geógrafo pela Universidade Federal de Santa Maria (1983), mestrado em Sensoriamento Remoto pelo Instituto Nacional de Pesquisas Espaciais (1990), doutorado em Geografia pela Universidade de São Paulo (2000) e pós-doutorado pela University of Victoria - Canadá (2007). Atualmente é professor da Universidade Federal de Santa Maria.

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Published

2015-05-30

How to Cite

Xavier, M. B., Rolim, S. B. A., Degrazia, G. A., & Pereira Filho, W. (2015). SURFACE TEMPERATURE ANALYSIS OF A COASTAL LAGOON INTEGRATED WITH ORBITAL AND MICROMETEOROLOGICAL DATA DURING THE PASSAGE OF FRONT SYSTEMS. Ciência E Natura, 37(2), 321–330. https://doi.org/10.5902/2179460X12541

Issue

Vol. 37 No. 2 (2015)

Section

Meteorology

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