NDSI指数(Normalized Difference Snow Index),也称为归一化雪差异指数,是一种多光谱遥感的技术,用于识别和定量表征地表覆盖的不同类型,特别是雪覆盖特征。NDSI通过计算反射率之间的差异,从而区分地表覆盖物。它使用可见光(VIS)与近红外光(NIR)之间的对比来计算地表覆盖物的归一化差异。NDSI可以以多种方式应用于景观分...
NDSI(Near-infrared Difference Vegetation Index),是一种近红外差异植被指数,是由近红外波段和可见光波段的信息构成,可以用来衡量植被覆盖程度。NDSI可以用来分析植被类型,例如森林、草地、荒漠等,也可以用来分析植被的变化,例如森林的砍伐、草地的改变等。 NDSI的应用非常广泛,可以用于土地利用分析、植被监测、土地覆盖变...
归一化差异雪指数(Normalized Difference Snow Index, NDSI)是一种用于评估地表积雪覆盖程度的指数。它基于可见光和近红外波段的遥感数据,并利用归一化差异原理来分析不同波段之间的差异。下面是一份制作归一化差异雪指数的简要步骤: 1. 数据获取:获取包含可见光(红、绿、蓝波段)和近红外波段数据的遥感影像数据(例如...
关于尼平消化不良症状指数量表 (Nepean Dyspepsia Symptom Index, NDSI)我可以作如下判断:1. NDSI属于一种自评量表 (self-rating scale)。它通过让患者自行评分和评定一系列与消化不良相关的症状，来评估消化不良的严重程度及症状改善情况。这种以患者自我报告为基础的评估方式属于自评量表的一种。2. NDSI最...
NDSI，即Normalized Difference Snow Index的缩写，其中文含义是“归一化差雪指数”。这个术语在气象学学术领域中广泛使用，主要用于监测和分析雪覆盖情况。它通过标准化的方式，比较不同波段的卫星数据，以评估地表雪的覆盖状况。缩写词NDSI在学术界尤其在气象科学中享有一定流行度，它被归类于学术科学类别，...
Normalized Difference Snow Index (NDSI)Snow is one of the common global climatological phenomenon well-known to be a serious constituent of the hydrological series and ecological hazard. In some parts of the world, snow is usually limited to the higher grounds and is regarded to be one of the...
NDSINormalized Difference Snow Index NDSINapier Diversified Services, Inc.(Macon, GA) NDSINational Defence Security Instructions(Canadian Department of National Defence) NDSINetwork Data Solutions Inc.(San Diego, CA) NDSINear-Drowning Severity Index ...
网络归一化差分积雪指数(Normalized Difference Snow Index);雪盖指数;积雪监测
Using many days of successive satellite data from EOS/MODIS and observation data of snow depth from Hubei weather stations,the normalized difference snow index(NDSI) was calculated,and then the snow distribution information was obtained with the support of geographical information system. 利用连续多天...
Determination of the NDSI index and cloud mask algorithm(The Case Study:Sepidan Region,Iran)To investigate the hydrological balance in the hot seasons,the role of snow is very significance.Remote sensing technology has multiple applications in different studies including the studies in the context of...