搜索结果: 1-15 共查到“工学 NDVI”相关记录58条 . 查询时间(0.046 秒)
中国科学院地理科学与资源研究所专利：一种基于LU数据和NDVI数据的生态建设数据处理方法。
2000-2014年甘肃省NDVI时空变化特征
甘肃省 NDVI 气候因子 相关分析
2018/4/18
基于甘肃省2000-2014年MODIS-NDVI遥感数据及气象数据，采用趋势分析法及相关分析法，对甘肃省归一化植被指数（NDVI）的时空变化特征进行研究，探讨了植被变化对区域气候变化的响应。结果表明：近15年，生长季及春、夏、秋季NDVI均呈增加趋势。区域尺度上，夏季NDVI增加趋势最显著，增速为0.071/10a（P<0.01）；像元尺度上，生长季NDVI呈增加趋势的面积最大，呈极显著增加（P...
COMPARISON OF UNCALIBRATED RGBVI WITH SPECTROMETER-BASED NDVI DERIVED FROM UAV SENSING SYSTEMS ON FIELD SCALE
Remote Sensing UAV agriculture Yara N-Sensor winter wheat nitrogen vegetation index hyperspectral RGB
2016/12/1
The development of UAV-based sensing systems for agronomic applications serves the improvement of crop management. The latter is in the focus of precision agriculture which intends to optimize yield, ...
URBAN VEGETATION MAPPING BASED ON THE HJ-1 NDVI RECONSTRCTION
HJ-1 NDVI Urban vegetation mapping Nanjing city Filtering algorithm
2016/12/1
HJ-1A/B NDVI (HJ NDVI) time-series data possess relatively high spatio-temporal resolution which is significant for the research on urban areas. However, its application is hindered by noise resulting...
ABSOLUTE RADIOMETRIC CALIBRATION OF THE GOKTURK-2 SATELLITE SENSOR USING TUZ GOLU (LANDNET SITE) FROM NDVI PERSPECTIVE
Absolute radiometric calibrationcGokturk-2 Tuz Golu NDVI
2016/7/4
TUBITAK UZAY has conducted a research study on the use of space-based satellite resources for several aspects of agriculture. Especially, there are two precision agriculture related projects: HASSAS (...
鄂尔多斯植被的NDVI 3g动态及气候响应
GIMMS NDVI 3g 最大值合成 反距离加权 相关性分析
2016/12/23
研究鄂尔多斯地区生态格局以及在全球变化下的自然演变规律，揭示中国西部矿区人工扰动生态环境的时空变化。[方法] 利用1982-2012年GIMMS NDVI 3g数据集和年均气温、降水量等气象数据，分别进行最大值合成、反距离加权法插值、线性回归与变化率分析、相关性分析等处理，揭示植被覆盖的时空变化趋势下蕴含的植物生理学机理，及其对气温和降水变化趋势的响应特征。[结果] 鄂尔多斯地区植被返青期（sta...
ENSO IMPACT ON THE VEGETATION IN MURRAY-DARLING BASIN:A SATELLITE MONITORING FROM 1998-2007 BASED ON SPOT/VEGETATION NDVI TIME SERIES DATA
ENSO SPOT/VEGETATION vegetation NDVI land use SOI
2016/1/3
The El Niflo Southern Oscillation (ENSO) phenomenon produces an important inter-annual variability of oceanic and atmospheric conditions with irregular periods and amplitudes in many regions of the wo...
VEGETATION COVER ANNUAL CHANGES BASED ON MODIS/TERRA NDVI IN THE THREE GORGES RESERVOIR AREA
Vegetation Change Analysis Remote Sensing Multi-temporal Accuracy
2016/1/3
Vegetation coverage change is a very important indication of the ecological enviroment change. In this paper, we detected the vegetation cover change by retrieving the fraction of the vegetation cover...
EXTRACTING CROPPING INDEX VARIATIONS IN NORTHERN CHINA BASED ON NDVI TIME-SERIES
Remote Sensing Agriculture Change Detection Indicators Multitemporal Spatial
2015/12/31
Multiple cropping system, characterized by cropping index, is of significant importance to Chinese food production and security.Owing to the changing nature conditions and human activity, cropping ind...
RESPONSE CHARACTERISTIC ANALYSIS OF CLIMATE CHANGE OF VEGETATION ACTIVITY IN HUANGHE-HUAIHE-HAIHE ZONE BASED ON NOAA NDVI DATA SET
NDVI Climate Change Green Wave Brown Wave Huanghe-Huaihe-Haihe (HHH) Zone
2015/12/31
The article, using the each ten day’s data of NOAA/AVHRR from 1981 to 2000 and adopting the Maximum-Slope Method and Curve-Fitting Method, analyzes the beginning and ending of the growth season of the...
VARIABILITY OF NDVI AGRICULTURAL USED AREAS
Remote Sensing Agriculture Land Use Land Cover History
2015/12/28
One of the possibilities offered to us by the remote sensing, is to monitor all the vegetation. Therefore agricultural plants can be monitor as well. From the spectral point of view, the presence of v...
INCREASING ACCURACY IN ANALYSIS NDVI-PRECIPITATION RELATIONSHIP THROUGH SCALING DOWN FROM REGIONAL TO LOCAL MODEL
NDVI-Rainfall Relationship GWR Modelling Uncertainty reducing Kazakhstan
2015/9/28
Spatial relationship between vegetation and rainfall in Central Kazakhstan has been modelled using Normalized Difference Vegetation Index (NDVI) and rainfall data from weather stations. The modelling ...
基于时间序列MODIS NDVI的冬小麦产量预测方法
冬小麦 产量预测 时间序列 MODIS NDVI
2016/12/19
选择我国河北、河南、山东3省作为研究区，在250 m空间分辨率的冬小麦种植区和1 km的冬小麦像元纯度图的基础上，分析了2000—2009年MODIS NDVI抽穗期峰值与单产的时间序列变化关系。采用Becker-Reshef等提出的去噪声修正后的冬小麦抽穗期NDVI峰值与单产进行回归分析建立冬小麦产量预测模型，并分析冬小麦预测精度的影响因素。最后，利用2010年地级市尺度的统计单产对所建立的预测...
VALIDATION OF REMOTE SENSING NDVI TIME SERIES WITH GROUND BASED MEASUREMENTS FROM THE AUTOMATED CLIMATE STATION NETWORK IMIS
measurements climate station network IMIS
2015/9/9
Background and data: Alpine environments are particularly sensitive to climate change such
as changes in snow cover. An important instrumentation to detect and monitor snow cover
extent and duration...
SPATIO-TEMPORAL MODELLING OF SMALL MAMMAL DISTRIBUTIONS USING MODIS NDVI TIME-SERIES
Echinococcus Rodents Landscape
2015/9/8
This work modelled the spatial distribution of the rodent species that act as hosts in the transmission cycle of the parasitic tapeworm
Echinococcus multilocularis. The rodent distribution was modell...