Zonasi Kawasan Wisata Pantai di Kabupaten Garut Jawa Barat Menggunakan Pemodelan Viewshed

Distribution of VA Mycorrhizal Spores in Sandy Beach Soils under Cashew

Tanah berpasir dari horizon permukaan (0-15 em) di bawah tanaman gajus telah disampel dari kawasan-kawasan pantai di Besut dan Kuantan (Malaysia) untuk spora-spora mikoriza. Pengasingan sporaspora mikoriza telah dibuat daripada kedua-dua siri Rudua dan Jambu di Besut dan juga dari siri Rudua dan Baging di Kuantan. Sampel-sampel tanah dari Kuantan mengandungi lebih banyak spora mikoriza dari tan...

JaWa: Java with Assertions

Modification of Itu-r Rain Fade Slope Prediction Model Based on Satellite Data Measured at High Elevation Angle

Rain fade slope is one of fade dynamics behaviour used by system engineers to design fade mitigation techniques (FMT) for space-earth microwave links. Recent measurements found that fade slope prediction model proposed by ITU-R is unable to predict fade slope distribution accurately in tropical regions. Rain fade measurement was conducted in Kuala Lumpur (3.3 N, 101.7 E) where located in heavy ...

Simulation of the Uncertainty of a Viewshed

One of the most widely available procedures packaged with CIS for the analysis of a Digital Elevation Model (DEM) is the identification of the viewable area, or the viewshed. The elevations recorded in the DEM do, however, contain error, and the USGS, for example, publishes a Root Mean Squared Error (RMSE) for each DEM. Research reported here assesses the uncertainty of locations being within a...

A Fast Algorithm for Approximate Viewshed Computation

Given a terrain model, the viewshed from a viewpoint is computed as the set of X-Y positions of a point target such that the target is visible. We introduce a novel approach to the computation of accurate viewshed approximations. Our algorithm relies on the computation of an approximation to the so-called line-of-sight (LOS) function. This function is defined over target X-Y positions, and is t...