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基于春夏秋冬HJ-1反演的PM2.5卫星遥感监测分布图比较研究
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作者 李光辉 郭辅臣 《中国水运(下半月)》 2016年第3期77-80,共4页
根据环境卫星(HJ-1)重返周期2d的特点,研究从2015年的环境卫星数据中选择了12景完全覆盖郑州市辖区且无云的数据(春夏秋冬四季每季分别各选择了三景数据)先进行了气溶胶光学厚度(AOD)的反演,AOD再经过标高订正和湿度订正,得到近地面&qu... 根据环境卫星(HJ-1)重返周期2d的特点,研究从2015年的环境卫星数据中选择了12景完全覆盖郑州市辖区且无云的数据(春夏秋冬四季每季分别各选择了三景数据)先进行了气溶胶光学厚度(AOD)的反演,AOD再经过标高订正和湿度订正,得到近地面"干"消光系数(AODSEC-RH),AODSEC-RH与地面观测站点PM2.5实际观测值之间建立模型关系,并经过波段运算得出了PM2.5卫星遥感监测分布图,再对PM2.5卫星遥感监测分布图进行分析,研究了郑州市城区一年四季的PM2.5污染浓度值不同高低值的情况,从而得出了郑州市城区一年四季PM2.5浓度值春秋季值较低,夏季值渐高,冬季值最高的结论。 展开更多
关键词 HJ-1 AOD PM2.5 卫星遥感监测分布图
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郑州市城区HJ-1反演的PM2.5的卫星遥感监测分布图研究
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作者 李光辉 《中国水运(下半月)》 2016年第2期76-78,共3页
研究从HJ-1的CCD数据出发,利用暗目标法反演出AOD并制作了AOD分布图,AOD经过标高订正和湿度订正,得到近地面"干"消光系数(AODSEC-RH),AODSEC-RH与地面观测站点PM2.5比较分析,建立了AODSEC-RH与PM2.5之间的模型关系,根据AOD与A... 研究从HJ-1的CCD数据出发,利用暗目标法反演出AOD并制作了AOD分布图,AOD经过标高订正和湿度订正,得到近地面"干"消光系数(AODSEC-RH),AODSEC-RH与地面观测站点PM2.5比较分析,建立了AODSEC-RH与PM2.5之间的模型关系,根据AOD与AODSEC-RH以及AODSEC-RH与PM2.5之间的关系,对AOD分布图经过波段运算得出PM2.5卫星遥感监测分布图。 展开更多
关键词 HJ-1 AOD 近地面“干”消光系数 PM2.5 卫星遥感监测分布图
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HJ-1反演的郑州市城区PM_(10)卫星遥感监测分布 被引量:1
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作者 王毅 李光辉 +2 位作者 黄同新 叶杰 王海侠 《绿色科技》 2017年第4期58-60,65,共4页
从HJ-1的CCD数据出发,利用暗目标法反演出AOD并制作了AOD分布图,AOD经过标高订正和湿度订正,得到近地面"干"消光系数(AODSEC-RH),将AODSEC-RH与地面观测站点PM10进行了比较分析,建立了AODSEC-RH与PM10之间的模型关系,根据AOD... 从HJ-1的CCD数据出发,利用暗目标法反演出AOD并制作了AOD分布图,AOD经过标高订正和湿度订正,得到近地面"干"消光系数(AODSEC-RH),将AODSEC-RH与地面观测站点PM10进行了比较分析,建立了AODSEC-RH与PM10之间的模型关系,根据AOD与AODSEC-RH以及AODSEC-RH与PM10之间的关系,对AOD分布图经过波段运算得出了PM10卫星遥感监测分布图。 展开更多
关键词 气溶胶光学厚度 近地面“干”消光系数 可吸入颗粒物 卫星遥感监测分布图
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基于Sentinel-5P卫星数据的周口市2019年臭氧浓度变化研究
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作者 李光辉 《中文科技期刊数据库(引文版)工程技术》 2022年第6期289-291,共3页
目前,国内外对O3浓度的研究,使用TOU及OMI等其他数据的较多,使用Sentinel-5P卫星的TROPOMI臭氧总量数据还比较少。文章以周口市为研究对象,选取了周口市2019年1月到12月的TROPOMI臭氧总量数据进行处理,根据处理的结果,制作了臭氧浓度分... 目前,国内外对O3浓度的研究,使用TOU及OMI等其他数据的较多,使用Sentinel-5P卫星的TROPOMI臭氧总量数据还比较少。文章以周口市为研究对象,选取了周口市2019年1月到12月的TROPOMI臭氧总量数据进行处理,根据处理的结果,制作了臭氧浓度分布图,然后进行了比较分析。分析的结果是:周口市的臭氧总量浓度值基本按照纬向分布,呈现出从北到南由高到低的变化趋势。七八月月份臭氧浓度分布较大,四五六月份臭氧浓度分布较小。 展开更多
关键词 周口市 Sentinel-5P TROPOMI O3浓度 遥感分布图
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Satellite remote-sensing technologies used in forest fire management 被引量:7
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作者 TIANXiao-rui DouglasJ.Mcrae SHULi-fu WANGMing-yu LIHong 《Journal of Forestry Research》 SCIE CAS CSCD 2005年第1期73-78,i004,共7页
Satellite remote sensing has become a primary data source for fire danger rating prediction, fuel and fire mapping, fire monitoring, and fire ecology research. This paper summarizes the research achievements in these ... Satellite remote sensing has become a primary data source for fire danger rating prediction, fuel and fire mapping, fire monitoring, and fire ecology research. This paper summarizes the research achievements in these research fields, and discusses the future trend in the use of satellite remote-sensing techniques in wildfire management. Fuel-type maps from remote-sensing data can now be produced at spatial and temporal scales quite adequate for operational fire management applications. US National Oceanic and Atmospheric Administration (NOAA) and Moderate Resolution Imaging Spectroradiometer (MODIS) satellites are being used for fire detection worldwide due to their high temporal resolution and ability to detect fires in remote regions. Results can be quickly presented on many Websites providing a valuable service readily available to fire agency. As cost-effective tools, satellite remote-sensing techniques play an important role in fire mapping. Improved remote-sensing techniques have the potential to date older fire scars and provide estimates of burn severity. Satellite remote sensing is well suited to assessing the extent of biomass burning, a prerequisite for estimating emissions at regional and global scales, which are needed for better understanding the effects of fire on climate change. The types of satellites used in fire research are also discussed in the paper. Suggestions on what remote-sensing efforts should be completed in China to modernize fire management technology in this country are given. 展开更多
关键词 Satellite remote sensing Fire management Fuel mapping Fire detection REVIEW
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甘肃新水井—芨岭地区线性构造解译
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作者 龚晚静 《甘肃科技》 2019年第17期39-41,共3页
本文基于CASI/SASI/TASI数据,参照前人区域地质调查成果(主要是1:200 000区域地质图),运用直译法、延伸法、对比法、逻辑推理法等遥感图像地质解译方法,对新水井—芨岭地区的构造进行解译,得到新水井—芨岭地区遥感解译线性构造分布图,... 本文基于CASI/SASI/TASI数据,参照前人区域地质调查成果(主要是1:200 000区域地质图),运用直译法、延伸法、对比法、逻辑推理法等遥感图像地质解译方法,对新水井—芨岭地区的构造进行解译,得到新水井—芨岭地区遥感解译线性构造分布图,其与研究区构造格架一致。通过遥感数据能够较为快速获得大区域的地质构造信息,更好地指示找矿工作。 展开更多
关键词 CASI/SASI/TASI 构造解译 遥感解译线性构造分布图
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Suitability mapping of global wetland areas and validation with remotely sensed data 被引量:7
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作者 ZHU Peng GONG Peng 《Science China Earth Sciences》 SCIE EI CAS 2014年第10期2283-2292,共10页
With increasing urbanization and agricultural expansion, large tracts of wetlands have been either disturbed or converted to other uses. To protect wetlands, accurate distribution maps are needed. However, because of ... With increasing urbanization and agricultural expansion, large tracts of wetlands have been either disturbed or converted to other uses. To protect wetlands, accurate distribution maps are needed. However, because of the dramatic diversity of wetlands and difficulties in field work, wetland mapping on a large spatial scale is very difficult to do. Until recently there were only a few high resolution global wetland distribution datasets developed for wetland protection and restoration. In this paper, we used hydrologic and climatic variables in combination with Compound Topographic Index (CTI) data in modeling the average annual water table depth at 30 arc-second grids over the continental areas of the world except for Antarctica. The water table depth data were modeled without considering influences of anthropogenic activities. We adopted a relationship between poten- tial wetland distribution and water table depth to develop the global wetland suitability distribution dataset. The modeling re- suits showed that the total area of global wetland reached 3.316× 10^7 km^2. Remote-sensing-based validation based on a compi- lation of wetland areas from multiple sources indicates that the overall accuracy of our product is 83.7%. This result can be used as the basis for mapping the actual global wetland distribution. Because the modeling process did not account for the im- pact of anthropogenic water management such as irrigation and reservoir construction over suitable wetland areas, our result represents the upper bound of wetland areas when compared with some other global wetland datasets. Our method requires relatively fewer datasets and has a higher accuracy than a recently developed global wetland dataset. 展开更多
关键词 global wetland suitability distribution water balance model CTI accuracy assessment
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