搜索结果: 1-15 共查到“NDVI”相关记录112条 . 查询时间(0.203 秒)
利用2001—2015年的MODIS NDVI数据和同期气象数据,分别在年际和月际尺度上分析林地、草地、耕地和其他用地NDVI的变化及其对气候变化的响应特征。结果表明:1)内蒙古地区的NDVI存在明显的地域性差异,总体呈现由东到西递减的特征;2)内蒙古地区NDVI整体呈增长趋势,增长率由高到低依次为:耕地、草地、林地和其他用地;3)近15年中,内蒙古地区整体呈现降水增多的趋势,温度变化不明显;4)...
FREQUENCY ANALYSIS OF MODIS NDVI TIME SERIES FOR DETERMINING HOTSPOT OF LAND DEGRADATION IN MONGOLIA
MODIS-NDVI Climate Parameter Time-series trend analysis Mann-Kendall
2018/5/15
This study examines MODIS NDVI satellite imagery time series can be used to determine hotspot of land degradation area in whole Mongolia. The trend statistical analysis of Mann-Kendall was applied to ...
STUDY OF MAOWUSU SANDY LAND VEGETATION COVERAGE CHANGE BASED ON MODIS NDVI
Normalized Differential Vegetation Index Vegetation Coverage Maowusu Sandy Land Maximum Value Composite Pearson Correlation Coefficient Inverse Distance Weighting
2018/5/16
This paper selected 2006-2016 MODIS NDVI data with a spatial resolution of 500m and time resolution of 16d, got the 11 years’ time series NDVI data of Maowusu sandy land through mosaicking, projection...
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...
腾格里沙漠南缘哈思山树轮记录的NDVI变化
腾格里沙漠南缘 树轮 NDVI 干旱气
2018/4/16
利用采自腾格里沙漠南缘哈思山的油松树轮样品建立树轮宽度年表,结合GIMMS归一化植被指数(NDVI)数据资料重建了本区1804~2009年6~9月NDVI变化序列。本研究分析了NDVI序列变化特征,在此基础上,探讨了本区植被变化与沙尘暴天气及其与干旱气候的关系,结果表明:近206年来腾格里沙漠南缘NDVI虽未发现显著增加趋势,但期间经历了多次波动;植被生长较好的阶段出现在1826~1829年、18...
辽宁省植被生长季NDVI对气候因子的响应
NDVI 气候因子 响应分析 滞后期
2018/6/8
基于2000–2010年辽宁省内的37个气象站及周边5个气象站的基础数据, 结合MODIS NDVI的遥感影像资料, 运用趋势分析、相关分析和空间分析等方法研究植被生长与气候的关系, 探讨不同气候因子对植被生长的影响与主导作用。结果表明: (1) 辽宁省植被在研究时段内的7–8月生长最为旺盛, 生长季植被NDVI呈显著升高趋势, 2007年后维持在0.73–0.74之间; (2) 在研究时段内, ...
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...