Investigation of potential integration of spectroradiometer data with GIS technology: The Spectro-GIS tools

8th International Symposium of the Digital Earth

地球科学;计算机科学

Salleh, S.A.^1 ; Hamid, J.R.A.^2 ; Ariffin, I.M.^2

Applied Remote Sensing and Geospatial Research Group, Faculty of Architecture Planning and Surveying, Universiti Teknologi MARA, Selangor, 40450 Shah Alam, Malaysia^1

Center of Studies Surveying Science and Geomatics, Faculty of Architecture Planning and Surveying, Universiti Teknologi MARA, Selangor, 40450 Shah Alam, Malaysia^2

关键词: Earth observations;    Quantitative measurement;    Spectral libraries;    Spectral response;    Spectral signature;    Spectro-radiometers;    Visible and near infrared;    Visual Basic .NET;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/18/1/012053/pdf
DOI  :  10.1088/1755-1315/18/1/012053

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The Earth's surface consists of different ground cover types. The spectral signature of these ground cover targets is unique and can be determined in the field through quantitative measurement of radiance and reflectance response by portable spectroradiometers. In this study, a field portable spectroradiometer, the GER 1500, covering the Ultraviolet, Visible and Near-infrared wavelengths from 350 nm to 1050 nm was used to record the spectral response reading of different ground cover types. The measurements were made at the time when the Sun was at several instant positions to find out the influences and impacts on the spectroradiometer observations. These instant positions of the Sun were determined via spherical computation. The outcome from the measurements made against selected target features by the spectroradiometer is an output file containing signature plot data that was generated in .sig and/or ASCII format. The attempt of the study was to convert that spectroradiometer data into a GIS-enable format. The development of a Spectro-GIS tool was customized using Visual Basic. Net programming language that enables the tools to run independently and automate the process of the conversion and generation of spectral library of the surface targets is highlighted. The results of this study will be benefited to the earth observation community in a way of providing alternative automation of spatial data archiving as well as the data integration and fusion of the land spectral signatures.