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日本水产厅已于1980年10月成立了“水产遥感技术促进委员会”将人遣卫星的遥感技术应用到渔业中,目前正在研究实施方案,预定从1984年起发射三颗海洋探测卫星。 相似文献
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日本森林综合研究所受林野厅“森林火灾对策调查研究项目”的委托,研制出可以发现并预报日本森林火灾情况的系统,该系统现已开始运用。 相似文献
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七十年代以来,随着遥感技术的不断发展,人造卫星的应用直接为渔业服务的各类卫星也就应运而生。目前人造卫星在渔业上的应用可概括如下几个方面: 相似文献
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Forest fire risk zone mapping from satellite images and GIS for Baihe Forestry Bureau, Jilin, China 总被引:4,自引:0,他引:4
XU Dong DAI Li-min SHAO Guo-fan TANG Lei WANG Hui 《林业研究》2005,16(3):169-174
A forest fire can be a real ecological disaster regardless of whether it is caused by natural forces or human activities, it is possible to map forest fire risk zones to minimize the frequency of fires, avert damage, etc. A method integrating remote sensing and GIS was developed and applied to forest fire risk zone mapping for Baihe forestry bureau in this paper. Satellite images were interpreted and classified to generate vegetation type layer and land use layers (roads, settlements and farmlands). Topographic layers (slope, aspect and altitude) were derived from DEM. The thematic and topographic information was analyzed by using ARC/INFO GIS software. Forest fire risk zones were delineated by assigning subjective weights to the classes of all the layers (vegetation type, slope, aspect, altitude and distance from r3ads, farmlands and settlements) according to their sensitivity to fire or their fire-inducing capability. Five categories of forest fire risk ranging from very high to very low were derived automatically. The mapping result of the study area was found to be in strong agreement with actual fire-affected sites. 相似文献
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日本利用人造卫星特别是用轨道卫星现测气象和日本近海海面情况,如海面温度、海流、浊度等海况,以精确预报海况。从1976年开始研制电子计算机系统用于现测海况,现在大体上达到了预期的实用目的。今后为了分析阴天情报, 相似文献