broj: 3-4/2016
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| RIJEČ UREDNIŠTVA | ||
| Uredništvo | ||
| IT IS TIME TO FINALLY FORMULATE A CONSISTENT FORESTRY POLICY AND FORESTRY STRATEGY pdf HR EN | 109 | |
| IZVORNI ZNANSTVENI ČLANCI | ||
| Jozo FRANJIĆ, Gabrijel HORVAT, Daniel KRSTONOŠIĆ | UDK 630* 111 + 113 (001) | |
| NEW LOCALITIES AND SYNTAXONOMIC CHARACTERISTICS OF SEA BUCKTHORN (Hippophaë rhamnoides L., Elaeagnaceae) IN CROATIA pdf HR EN | 111 | |
| Ivan ANDRIĆ, Igor POLJAK, Marno MILOTIĆ, Marilena IDŽOJTIĆ, Davorin KAJBA | UDK 630* 165 + 111 (Fraxinus angustifolia Vahl) (001) | |
| LEAF PHENOLOGY CHARACTERISTICS OF NARROW-LEAVED ASH (Fraxinus angustifolia Vahl) IN CLONAL SEED ORCHARD pdf HR EN | 117 | |
| Dalibor BALLIAN | UDK 630* 443 (001) | |
| GENETIC STRUCTURE OF SESSILE OAK (Quercus petraea (Matt.) Lieblein) IN BOSNIA AND HERZEGOVINA BASED ON THE ISOENZYME ANALYSIS pdf HR EN | 127 | |
| Emsud SELMAN, Mirza DAUTBAŠIĆ, Osman MUJEZINOVIĆ | UDK 630* 453 (001) | |
| SMALL SPRUCE LEAF WASP (Pristiphora abietina Christ. 1791) – CONTRIBUTION TO THE BIOLOGY OF PEST IN THE VIEW OF NEWLY DAMAGES pdf HR EN | 137 | |
| PRETHODNO PRIOPĆENJE | ||
| Neška VUKŠIĆ, Marcela ŠPERANDA | UDK 630* 114.2 | |
| DISTRIBUTION OF HEAVY METALS (Cd, Pb, Hg, As) AND ESSENTIAL ELEMENTS (Fe, Se) IN FOREST SOIL AND PLANT COMMUNITIES OF THE STATE OPEN HUNTING AREA ˝KRNDIJA II˝ XIV/23 pdf HR EN | 147 | |
| PREGLEDNI ČLANCI | ||
| Atinc PIRTI, Nursu TUNALIOGLU, Taylan OCALAN, R.Gursel HOSBAS | UDK 630* 582 | |
| AN ALTERNATIVE METHOD FOR POINT POSITIONING IN THE FORESTED AREAS pdf HR EN | 155 | |
| Summary Global Navigation Satellite Systems (GNSS) consist of satellite technologies such as GPS, GLONASS, BeiDou and Galileo. These technologies have effectively been used in many application areas. GNSS Continuously Operating Reference Stations (CORS) have also been applied successfully in many areas of forested industry. Typical applications include fire prevention and control, harvesting operations, insect infestation, boundary determination, and aerial spraying. Forest and natural resource applications can be achieved efficiently employing GNSS/CORS data collection technologies. However, there are limiting factors in the environment, such as the forest canopy, which has adverse effects on the reception of GNSS signals. In terms of saving time, Point Positioning with GNSS/CORS in forested areas is a significant challenge in the acquisition of highly accurate coordinates of points. The time for integer carrier-phase ambiguity solution takes approximately one-hour or more for point positioning under forested areas with GNSS/CORS. In this study, an alternative method for providing point coordinates under a forested area is proposed. This method gives the positioning results with centimeter level accuracy and nearly 15 minutes are required to provide the new point location in the forested area. The method proposed may also be of practical use in indoor applications with desired accuracy at cm level, which is reached in a short observation time. In this study, we conducted fieldwork to achieve coordinates of the point in a forested area with GNSS/CORS system and supplementary measurements by establishing two control points observed by GNSS/CORS located at the border of the forested area. The result shows that a satisfactory solution for forested area is reached at cm level (≈ ± 6 cm) in a short observation time. Key words: GNSS; CORS; VRS; Accuracy; Forested Areas | ||