Đang chuẩn bị liên kết để tải về tài liệu:
Xác định trượt lở đất khu vực huyện Bát Xát, tỉnh Lào Cai sử dụng chuỗi ảnh Radar ALOS PalSAR bằng phương pháp đường đáy ngắn (SBAS)
Đang chuẩn bị nút TẢI XUỐNG, xin hãy chờ
Tải xuống
Bài viết lựa chọn phương pháp đường đáy ngắn (SBAS) với chuỗi ảnh đa thời gian ALOS PalSAR được thu trong khoảng thời gian từ tháng 8/2007 đến tháng 11/2010 để xác định trượt lở cho khu vực huyện Bát Xát vàmột phần nhỏ của huyện Sa Pa, tỉnh Lào Cai. \ | Journal of Mining and Earth Sciences Vol. 61 Issue 4 2020 1 - 10 1 Landslides detection in Bat Xat district Lao Cai province Vietnam using the Alos PalSAR time-series imagery by the SBAS method Anh Van Tran 1 Binh An Nguyen 2 Yen Hai Thi Nguyen 3 Nghi Thanh Le1 1 Faculty of Geomatics and Land Administration Hanoi University of Mining and Geology Vietnam 2 Hochiminh City Institute of Resources Geography Vietnam 3 Faculty of Surveying Catography and GIS Ho Chi Minh University of Natural Resources and Environment Vietnam ARTICLE INFO ABSTRACT Article history Radar Interferometry InSAR has been known as a technology to monitor Received 25th June 2020 the change of elements on the earth s surface for many years. There are Accepted 03rd July 2020 many InSAR methods in which the permanent scattering InSAR Radar Available online 31st Aug. 2020 PSInSAR method uses a series of images to determine the terrain Keywords deformetions quite well. However for areas with lots of vegetation the ALOS-PalSAR number of permanent scattering points PS points will be limited. In this paper we have chosen a method that also uses a set of multi-temporal InSAR Radar Radar images but has the lowest spatial and temporal image baselines Landslide this method is called the Small Baselines method SBAS . With the ALOS Multi-temporal Radar PalSAR images series that was collected from August 2007 to November SBAS. 2010 many landslide points in the area of Bat Xat district Lao Cai province were discovered. The landslide locations detected from Radar images were compared with the landslide surveying points and landslide interpreted by aerial photos in 2013 provided by Vietnam Institute of Geosciences and Mineral Resources Vietnam. There have been many sliding sites coinsiding with the surveyed landslides which proves that many landslides exist and develop continuously such as the location of Mong Sen bridge Trung Chai Commune or at Sai Duan bridge Phin Ngan commune. Copyright 2020 Hanoi University of