中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共3条，第1-3条

帮助

条数/页：排序方式：
	Evaluation of spatial upscaling methods based on remote sensing data with multiple spatial resolutions (EI CONFERENCE) 会议论文 OAI收割 Satellite Data Compression, Communications, and Processing VIII, August 12, 2012 - August 13, 2012, San Diego, CA, United states Ren R.; Gu L.; Cao J.; Chen H.; Sun J. 收藏 \| 浏览/下载：29/0 \| 提交时间：2013/03/25 In most applications of remote sensing data special spatial information is required from a finer to a coarser spatial resolution with appropriate upscaling methods. The purpose of this paper is to compare and evaluate current spatial upscaling methods using MODIS remote sensing data with multiple spatial resolutions. In the research Northeast China was selected as the study area. MODIS data with spatial resolutions of 250 m (2 bands) and 500 m (7 bands) were used as the test data. Through using the selected upscaling methods the Band 1 and Band 2 data of MODIS were scaled up from 250 m to 500 m spatial resolution. On the basis of land cover characteristics of Northeast China the MODIS data located in the study area was classified into the five land cover types including water grasslands forests farmlands and bare lands using maximum likelihood method. The land cover classification results were further compared with MODIS Land Cover Type product. Finally Structural Similarity (SSIM) was selected to evaluate the effects of these upscaling methods. The research can provide more useful information for spatial scaling transformation in remote sensing data applications. 2012 SPIE.
	Numerical Study on the Spatial and Temporal Characteristics of Water Quality in the Taihu Lake of China 会议论文 OAI收割 Hydrology Conference 2010 (The Changing Physical and Social Environment: Hydrologic Impacts and Feedbacks), San Diego, CA, USA, 2010-10-11~ 2010-10-13 作者: Liu QQ(刘青泉) 收藏 \| 浏览/下载：27/0 \| 提交时间：2010/12/27 Taihu Lake is the third largest fresh water lake in China. With the fast economic development, abundant industrial and agricultural waste water has been discharged into Taihu Lake, causing the eutrophication of the water quality, which greatly affected the water utility. In the past decades, the treatment of Taihu Lake has witnessed limited success. Therefore, it is practically and theoretically significant to study the eutrophication of Taihu Lake. This research has focused on the issue of water quality including the characteristics of spatial and temporal distributions, and the rules of nutrient diffusion in the Taihu lake area.
	Infinite dilution activity coefficients in ethylene glycol and ethylene carbonate 期刊论文 OAI收割 JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2003, 卷号: 48, 期号: 1, 页码: 167-170 作者: Zhang, SJ; Tsuboi, A; Nakata, H; Ishikawa, T 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/11/08 systems including water chromatography prediction