Selecting Remotely Sensed Images Radiometric Calibration Site (Case Study: Tehran Province)
محورهای موضوعی : فصلنامه علمی پژوهشی سنجش از دور راداری و نوری و سیستم اطلاعات جغرافیایی
Mohammad Javad Khodam
1
(M.Sc. of Physic, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, Iran)
Abbas Bashiri
2
(Instructor of Electornic, Department of Information and Communication Technology, Imam Hossein University (IHU), Tehran, Iran)
Hasan Hasani Moghaddam
3
(M.Sc. of Remote Sensing, Kharazmi University, Tehran, Iran)
Seyyed Mohammad Afghahi
4
(- M.Eng of metalogic, , Imam Hossein University, Tehran, Iran)
Hasan Tabarsi
5
(M. Eng. of Electornic, Microelectronic and Nanoelectronic Devices, Department of Information and Communication Technology, Imam Hossein University (IHU), Tehran, Iran)
کلید واژه: Tehran, remote sensing, atmosphere, Radiometric Calibration Site,
چکیده مقاله :
Radiometric errors are the most common errors of data acquired by remote sensing sensors. Correction of this type of error requires knowledge about the atmospheric conditions during imaging of the sensor. The aim of this study is to select an ideal location for the construction of a radiometric calibration site. Tehran province was selected as a case study to conduct research in a pilot environment. Based on the studies performed on the CEOS standards in site selection as well as the criteria observed in Cal Val sites, 14 parameters were selected as important and necessary parameters for calibration site selection. The data used in this research include two categories of satellite data and GIS layers. After applying the preprocessing on the data and obtaining the weight of each layers, suitable places were obtained for the construction of the calibration site between 2012 to 2019 years. Due to the importance of the consistency of the selected place during different years, the places that were always suitable between the evaluated years, were selected. The results of the research show an ideal location in the western region of Tehran for site construction, which has been selected very well suitable in terms of all criteria. In addition to developing the appropriate location for the calibration site uses, instruments such as san-photometer and goniometer were also developed to be installed on the site to provide services to multispectral and hyperspectral sensors.
Radiometric errors are the most common errors of data acquired by remote sensing sensors. Correction of this type of error requires knowledge about the atmospheric conditions during imaging of the sensor. The aim of this study is to select an ideal location for the construction of a radiometric calibration site. Tehran province was selected as a case study to conduct research in a pilot environment. Based on the studies performed on the CEOS standards in site selection as well as the criteria observed in Cal Val sites, 14 parameters were selected as important and necessary parameters for calibration site selection. The data used in this research include two categories of satellite data and GIS layers. After applying the preprocessing on the data and obtaining the weight of each layers, suitable places were obtained for the construction of the calibration site between 2012 to 2019 years. Due to the importance of the consistency of the selected place during different years, the places that were always suitable between the evaluated years, were selected. The results of the research show an ideal location in the western region of Tehran for site construction, which has been selected very well suitable in terms of all criteria. In addition to developing the appropriate location for the calibration site uses, instruments such as san-photometer and goniometer were also developed to be installed on the site to provide services to multispectral and hyperspectral sensors.
