English translation for "difference vegetation index"
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- 差值植被指数
Related Translations:
- Example Sentences:
| 1. | Advances in drought monitoring by using remotely sensed normalized difference vegetation index and land surface temperature products
基于植被指数和土地表面温度的干旱监测模型 | | 2. | Then based on the method of dimidiate pixel model , the current model is improved , and the model of deriving vegetation fraction from normalized difference vegetation index ( ndvi )
然后在像元二分模型的基础上对已有模型进行改进，建立用ndvi归一化植被指数估算植被覆盖度的模型。 | | 3. | This technique is mainly involved two steps : 1 ) vegetation effects correction : we used ndvi ( normalized difference vegetation index ) derived from tm and avhrr measurements for spatial and temporal variations of vegetation covers at different scales
但由于电磁波与地表相互作用的复杂性，雷达后向散射系数除受地表介电常数(土壤水分)影响外，还受到地表粗糙度、土壤类型、植被覆盖以及雷达入射角、频率、极化等多种因素的影响。 | | 4. | After analysis of tm / etm + data ' s advantage over the forest change detection , tasseled cap transformation , principal component analysis and normalized difference vegetation index were chosen to enhance the vegetation spectral information . expert classification system was adopted to extract the main tree species in the littoral shelter forest
在分析etm +数据在森林资源监测中的优势的基础上，通过缨帽变换、主成分分析和植被指数法增强植被光谱信息，结合专家分类系统对沿海防护林主要树种进行提取。 | | 5. | The authors have developed a device for measuring the normalized difference vegetation index ( ndvi ) by using four specially designed photoelectric detectors ; the ndvi can reflect the growing information and seasonal nitrogen fertilizer requirement of crops , and offers guidance for rational application of nitrogen fertilization
文中提出了一种由4个专门设计的光电探测器直接得到归一化植被指数的测量方法，该参数能够反映作物的生长状态，知道不同季节的农作物对氮的需求量，对实施变量精准施肥具有重要的指导作用。 | | 6. | Some variables regional distribution over south ningxia is given out in the course of evapotranspiration estimation : the regional distribution of surface characteristic parameters ( normalzed difference vegetation index , surface albedo , surface temperature ) , radiation balance components ( surface absorbed shortwave radiation , surface longwave radiation , atmospheric counter radiation , net radiation ) , surface heat and balance components ( soil heat flux , sensible heat flux , latent heat flux )
估算区域蒸发(散)量的过程中，得到许多有意义的量：地表特征参数(植被指数ndvi 、地表反射率、地表温度) ；地表辐射平衡各量(地表短波吸收辐射、地表长波辐射、大气逆辐射、地表净辐射) ；地表热量平衡各量(土壤热通量、显热通量、潜热通量) 。 | | 7. | Firstly , this dissertation estimated the size of carbon source ; sink and net carbon sink of farmland ecosystems in china costal regions ( including ten provinces ) with statistic data from 1981 to 2001 , which include data of crop yield and agricultural consumptions . then analyzed the temporal - spatial differences of carbon source , sink and net carbon sink of china costal farmland ecosystems . secondly , estimated npp ( net primary productivity ) of farmland ecosystems in china costal regions with per month noaa - avhrr ndvi ( normalized difference vegetation index ) data and estimation model
本文首先运用1981 - 2001年的统计资料(作物产量和各种途径的农业投入数据) ，对沿海十省区农田生态系统碳源汇及净碳汇进行了估算，并分析了其时空差异；然后运用1998年逐月ndvi数据通过建模对沿海地区农田生态系统npp进行了估算，并分析了npp分布与农田生态系统碳吸收的相关性；最后通过对农田生态系统碳源汇的影响因素分析，提出了不同的农田生态系统碳增汇减排技术。 |
- Similar Words：
- "difference threshold of loudness" English translation, "difference tone" English translation, "difference triangle" English translation, "difference type pickup electrode" English translation, "difference type relay" English translation, "difference viewer" English translation, "difference voltmeter" English translation, "difference with no significance" English translation, "difference with significance" English translation, "difference-differentialequation" English translation
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