03702nam a2200433 4500 20260817162903.0 th eng .b11584166 AIT Thesis no.SR-96-22 Vu Anh Tuan Application of GIS and remote sensing techniques for geomorphologic mapping : a case study of Suoihai area, Vietnam Bangkok : Asian Institute of Technology, 1996 108 leaves : ill. Thesis ; no. SR-96-22 Thesis (M. Sc.) - Asian Institute of Technology, 1996 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development Geomorphology is one of the important information layers of natural resources. This study presents successfully the application of integrated Remote Sensing and GIS in geomorphologic mapping. The satellite images and topographic map were used as two layers in extraction of all possible aspects of information about relief. Digital image processing was applied to Landsat TM image to classify the geomorphologic units based on its relation with landcover categories. SPOT image was used in visual interpretation to distinguish the geomorphologic units in flat area. The topographic map was digitized to establish a DEM of study area, named Suoihai. Using this DEM, several morphometric maps were calculated using spatial analysis functions of IL WIS-a raster based GIS. A digital database of relief was built from these morphometric maps, such as slope, aspect, length of slope, horizontal dissection, vertical dissection, distance from drainage, etc. and other relative maps, such as geology. This database was used in geomorphologic mapping following a quantitative model. The model was established from detail pre-studies about geomorphology of the area and also the data collected from a field trip. The geomorphologic map at a scale of 1 :50,000 was established automatically by using this model. The geomorphologic map which was done by this method has acceptable accuracy and more detail in comparison with the conventional map. However, the further study is necessary to complete the method that can be applied effectively in time and cost for whole country. Geographic information systems Remote sensing Vietnam Geomorphological mapping Vietnam Suoihai Kaew Nualchawee, Chairperson Andrianasolo, Haja, Examination Committee Apisit Eiumnoh, Examination Committee French Government, Scholarship donor Asian Institute of Technology. Thesis ; no. SR-96-22 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B14853 .b11584166 mnait v 241216 0 970206 m a v 0 000:001:PDF:b1158416:001935:0:0:0:0:0:0 Abstract--AIT Thesis no.SR-96-22 n mnait mnait mnarc 20 Barcode : 30020220000775 CREATED : 1997-06-02 RECORD # : i1190334x LPATRON : 1016739 LCHKIN : 2006-11-04 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 5 TOT RENEW : 3 Barcode : 30020220000791 CREATED : 1997-06-02 RECORD # : i11903351 LPATRON : 1016950 LCHKIN : 2005-09-13 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 6 TOT RENEW : 2 Barcode : 30050120580146 CREATED : 2015-09-02 RECORD # : i12836059 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 2 TOT CHKOUT : 0 TOT RENEW : 0 6622 6622 0 0 0 0 MAIN MAIN mnait 2026-08-17 0 AIT Thesis no.SR-96-22 30020220000775 2026-08-17 16:29:03 1 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 0 AIT Thesis no.SR-96-22 30020220000791 2026-08-17 16:29:03 2 2026-08-17 20 0 0 0 0 MAIN MAIN mnarc 2026-08-17 50.00 0 AIT Thesis no.SR-96-22 30050120580146 2026-08-17 16:29:03 3 2026-08-17 20