Trong nghiên cứu này đã sử dụng mô hình MARINE của Pháp là mô hình thủy văn thông số đầy đủ (tham số vật lý), là mô hình có khả năng mô phỏng tốt dòng chảy sườn dốc lưu vực nhưng chưa diễn toán được dòng chảy trong sông. | Khôi phục số liệu lưu vực sông Cái Phan Rang bằng phương pháp tích hợp các mô hình NGHIÊN CỨU & TRAO ĐỔI ESTIMATING POTENTIAL EVAPOTRANSPIRATION (PET) FOR NORTH CENTRAL COAST AND SOUTH CENTRAL COAST BY USING MODIS DATA Tran Thi Tam, Nguyen Hong Son, Do Thanh Tung Vietnam Institute of Meteorology, Hydrology and Climate Change The topography in the North and South Central Coast are extremely varied, with the alternation of many hills, mountains and steeps. The meteorological station network is sparsely distributed. Therefore, the accuracy of the conventional interpolation based on the observation data from mete- orological stations still limited. In this case, using remote sensing data is one of the appropriate so- lutions to improve the accuracy. In this study, we use MODIS data to estimate Potential Evapotranspiration (PET) for the North and South Central Coast. The results show that the correlation coefficient between observations and estimations is high (R = ). It demonstrates that the PET estimated from MODIS image is reli- able and can be applied to other regions. Keyword: Potential evapotranspiration (PET), remote sensing, MODIS (Tiếp theo trang 32) BUILDING SYSTEMS SHOW INFORMATION BY HYDROMETEOROLOGY OPEN SOURCE TECHNOLOGY Do Thanh Long, Tran Thai Binh GIS anh Remote Sensing Research Center (GIRS) Today, the open sourceGIS (Geographic information systems) is a popular trend and this be- comes interest area for research nowadays, especially WebGIS base on open source. This allowsin- herit the characteristics of both Web and GIS platforms. Compared to the current commercial technology, with the open source technology, the application developer can custom, apply, incor- porate in new current technology flexibly with cheapest cost. In this article, we studied the open source technology for web services, database system, map server, display 3D. to build a meteorological and .
