期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII Part B6a
页码：29-32
出版社：Copernicus Publications
摘要：Field Science Center, Tohoku University is located in the west side of Miyagi Prefecture in Japan and included flat and mountainous area. The site has been used for experimental farm, grassland, and forestry of the university since 1947. There are forest, grassland, agriculture field, paddy and others, and the total area of our center is about 2,000 ha. Recently, the importance of terrestrial and marine field sciences might be realized in Japan, and remote sensing and GIS are powerful tools for the study. For this reason, Remote Sensing Laboratory, Field Science Center, Graduate School of Agriculture Science, Tohoku University in Japan established at April 2004 and started the lectures for remote sensing from this time. At the time, there was nothing about remote sensing and Geographical Information System (GIS) tools. First, we developed educational and analytical system for the remote sensing and GIS using hand made PCs at the lowest cost. During the system development, we are also starting to create GIS database for Field Science Center that named Digital Field Science Center. For studies and educations at the laboratory, we developed the system of remote sensing and GIS. Our system consists of hand made PCs, one digitizer, one color laser printer and large size scanner. We assemble the PCs for the optimal performance and the lowest cost. A gigabit LAN connects each PC, and one PC used for file server for store common data such as maps, remote sensing images, and GIS data. File server has RAID system for safety storage from HD trouble. Main-use software is Arc/GIS, ERDAS/Imagine and Leica Photogrammetry Suite, and we use them jointly with floating licenses. The remote sensing programs of ENVI, eCognition and PG-Streamer were already installed on some PCs. Free software as Multi-Spec and 3DEM is also installed each PC. We found a paper map of vegetation and forest management map which was created at the Field Science Center about 50 years ago, and the map was scanned for making raster file. The map does not have geographical information and we can understand only shape of fields. Using 1/25,000 of digital topographical maps of geographical survey Institute in Japan, we found several corresponding points that meant same points of the two maps. Satellite data are mainly taken by optical sensor such as Landsat/TM, Terra/ASTER and ALOS/AVNIR2. The ASTER data are orthonized by Silcast and then used for analysis. Other data were geo-corrected and geo-referred using ASTER data. The data are used for land cover analysis and biomass determination. Aerial hyper spectral imaging data of 190 bands were taken at late in July, middle August late, in September and late November in 2007. We could success to add geographical information, and the raster map of Field Science Center was listed on the 1/25,000 of digital topographical map. Japan Forest Technology Association took newly aerial photo at October 2002, and we use the photos. This image are 4 lines acquisition, and each line has 6 or 7 photos. First, scanning the photos by large size scanner. Next, we orthonized the photos at each line using Leica Photogrammetry Suite. At last, we mosaic the photos using same software, and highlighted field Center area. The operations were performed using Aisa System and organized by Earth Remote Sensing Data Analysis Center. Airplane flied form north to south at 3000m altitude. The resolution is 3m and swath width is 900m. We checked vegetation and condition of agricultural field in the field center. The lectures of remote sensing at undergraduate and graduate university course were started at 2004. The both lectures almost same contents, because both students are not familiar with remote sensing. Those lectures are at 3rd grade at undergraduate and 1st graduate students and for the lectures, we made the textbook named "Hand Book of Agricultural Remote Sensing." Recently, almost students have their own note PCs, and the students practice remote sensing using Multi-Spec software, ASTER data and the PCs in the lectures
关键词：Capacity Building; Data Infrastructure; Image Understanding; Change Detection; Crop Management; Land Use ; Mapping
