A STUDY ON SPECTRAL AND THERMAL BEHAVIOR OF PLAYA MARGINAL LANDS WITH LANDSAT7 ETM+ SATELLITE DATA (A CASE STUDY: CHEJAM PLAYA, SEMNAN)

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EHSANI AMIR HOUSHANG

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Journal: Geographic Information and Remote Sensing in Planning Year:2010 | Volume:1 | Issue:1 Page(s): 51-58

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Title

A STUDY ON SPECTRAL AND THERMAL BEHAVIOR OF PLAYA MARGINAL LANDS WITH LANDSAT7 ETM+ SATELLITE DATA (A CASE STUDY: CHEJAM PLAYA, SEMNAN)

Author(s)

EHSANI AMIR HOUSHANG | Issue Writer Certificate

Keywords

SPECTRAL INFORMATIONQ2

THERMAL BANDQ3

PLAYAQ2

LANDSAT7Q3

THERMAL MAPQ3

Abstract

Landsat THERMAL BAND measures the emitted radiation of the earth surface. In many studies, the ETM+ THERMAL BAND with 60 meter resolution is excluded from processing and classification despite the valuable information content. In this study, the effectiveness of spectral and THERMAL BAND information in the identification of different lands in an arid region (Chejam PLAYA) is evaluated using Landsat ETM+data. In this research, the data of Landsat 7 (ETM+) Path/Row 163-35 dated 20 July 2000 is used. Using Visual - Digital Analysis (VDA), such as color composite, feature space and spectral band analysis, homogeneous classes were selected. Then based on field works, data and GPS points, land classes were defined. The surface THERMAL MAP is produced by converting the DN values to radiance using calibration information. In order to study the role of THERMAL BAND and its contribution to accuracy improvement, four band combinations (with and without THERMAL BAND) were processed using maximum likelihood classifiers algorithm. The result showed that, for such a study, THERMAL BANDs despite lower resolution are essential for differentiating arid lands such as alluvial silty loam (alluvial plain) and torrential saline clay (flood plain). Moreover, THERMAL BAND includes valuable information and can improve accuracy.

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APA: Copy

EHSANI, AMIR HOUSHANG. (2010). A STUDY ON SPECTRAL AND THERMAL BEHAVIOR OF PLAYA MARGINAL LANDS WITH LANDSAT7 ETM+ SATELLITE DATA (A CASE STUDY: CHEJAM PLAYA, SEMNAN). JOURNAL OF GIS.RS. APPLICATION IN PLANNING, 1(1), 51-58. SID. https://sid.ir/paper/223031/en

Vancouver: Copy

EHSANI AMIR HOUSHANG. A STUDY ON SPECTRAL AND THERMAL BEHAVIOR OF PLAYA MARGINAL LANDS WITH LANDSAT7 ETM+ SATELLITE DATA (A CASE STUDY: CHEJAM PLAYA, SEMNAN). JOURNAL OF GIS.RS. APPLICATION IN PLANNING[Internet]. 2010;1(1):51-58. Available from: https://sid.ir/paper/223031/en

IEEE: Copy

AMIR HOUSHANG EHSANI, “A STUDY ON SPECTRAL AND THERMAL BEHAVIOR OF PLAYA MARGINAL LANDS WITH LANDSAT7 ETM+ SATELLITE DATA (A CASE STUDY: CHEJAM PLAYA, SEMNAN),” JOURNAL OF GIS.RS. APPLICATION IN PLANNING, vol. 1, no. 1, pp. 51–58, 2010, [Online]. Available: https://sid.ir/paper/223031/en

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