1. Thus, this indicates that NDWI is a useful vegetation index for estimating forest fire potential in the Atlantic region.
因此，這表明NDWI是在大西洋地區的潛在有用的森林火災指數。
2. NDWI的翻譯
2. Therefore, the NDWI is not suitable for enhancing and extracting water information in built-up land-dominated areas.
實驗還發現MNDWI比NDWI更能夠揭示水體微細特征，如懸浮沉積物的分布、水質的變化。
3. Then, an improved estimation method of NDWI for the water content was put forward based on a good linear relationship between the NDWI and MCARI.
該方法可以較好地去除LAI的干擾，估算的相關系數平方提高為0.97，增加了27%，估算殘差由初始的0.0156降低為0.00535，減少了65%。
4. Based on the analysis of the characteristics of spectrum about the wetland, at first, unsupervised classification on the image of study area is conducted. And then, by using the spectral feature of wetlands, texture, principal component analysis, NDWI and relative knowledge rules, the results of unsupervised classification is improved.
在濱海濕地光譜特征分析的基礎上，首先對研究區的圖像進行了非監督分類，進而利用濕地的光譜相應特征、紋理特征、主成分變換、歸一化差異水體指數等特征和相應的知識規則，得到用于優化分類的知識規則，采用分層分類的方法對非監督分類的結果進行了優化，從而使提取結果的精度較原來有了很大程度的提高。
5. 911查詢·英語單詞大全
5. Water body; information extraction; remote sensing; NDWI; MNDWI
水體；信息提取；遙感； NDWI ； MNDWI
6. Furthermore, the MNDWI can reveal subtle features of water more efficiently than the NDWI or other visible spectral bands do due largely to its wider dynamic data range.
另外，MNDWI可以很容易地區分陰影和水體，解決了水體提取中難于消除陰影的難題。
7. NDWI
7. In the study, the integrated classifier taken the decision tree as basic classification algorithm, reduced the phenomena of objects with similar spectrum between the vegetations of living on forest and agricultural land, by using the slope data; extracted the water, agricultural land, and mountainous bare land, with the ancillary data of NDVI, NDWI and NDBI; and distinguished urban and bare land on plain, by using the maximum likelihood classifier.2 The Subsection Mean Method based on the mean statistic algorithm was introduced, in allusion to the land surface temperature field analysis of the fault system.
方法以決策樹為基礎，利用地形坡度數據，消除了由于地形坡度引起的林地和耕地之間的同譜異物現象；使用水體指數、植被指數和城鎮指數，提取了水體、耕地、山區裸露地；采用最大似然法，區分了城鎮用地和盆地區裸露地。2針對研究區斷裂系統地表溫度場分析，提出了基于均值統計運算的分段均值法。
8. Taking advantage of measured ASD hyperspectral data, we synchronized obtained crop parameters data and Cd content data of farm soil in several time phase of growing season of rice. The response relationships between potential sensitive spectrum remote sensing indices and physiological ecology parameters in Cd pollution stress were analyzed, such as leaf pigment concentration, water content, cell structure and leaf area index. Then the corresponding diagnosis spectral indices were determined, including Modified Chlorophyll Absorption in Reflectance Index, Normalized Difference Water Index, Red-Edge Vegetation Stress Index and Ratio vegetation index.
采用水稻生長季節多個時相的ASD實測高光譜數據和同步獲取的作物參數與農田土壤鎘含量數據，分析鎘污染脅迫水稻生理生態參數如葉片色素含量、水分含量、細胞結構和葉面積指數等與潛在敏感光譜遙感指數的響應關系，確定MCARI、NDWI、RVSI 和RVI為相應的診斷光譜指數。
9. NDWI and MNDWI can not distinguish the semidry watercourse from the noise in semi-arid regions.
利用NDWI和MNDWI提取半干旱地區水系，無法有效的區分水系內的半干涸河道與背景噪音。
