Results 71 to 80 of about 131,838 (305)

Drought Monitoring With Spectral Indices Calculated From Modis Satellite Images In Hungary

Journal of Environmental Geography, 2015
In this study a new remote sensing drought index called Difference Drought Index (DDI) was introduced. DDI was calculated from the Terra satellite’s MODIS sensor surface reflectance data using visible red, near-infrared and short-wave-infrared spectral ...
Gulácsi András, Kovács Ferenc
doaj   +1 more source

Regional Equivalent Water Thickness Modeling from Remote Sensing across a Tree Cover/LAI Gradient in Mediterranean Forests of Northern Tunisia

Remote Sensing, 2015
The performance of vegetation indexes derived from moderate resolution imaging spectroradiometer (MODIS) sensors is explored for drought monitoring in the forests of Northern Tunisia; representing a transition zone between the Mediterranean Sea and the ...
Hedia Chakroun, Florent Mouillot, Abdelaziz Hamdi   +2 more
doaj   +1 more source

ESTIMATING LEAF AREA INDEX OF RIVERINE VEGETATION USING HYPERSPECTRAL REMOTE SENSING AND VEGETATION INDEX

PROCEEDINGS OF HYDRAULIC ENGINEERING, 2006
Hyperspectral data were acquired from in situ ground measurements in a riparian grass field. The leaf area index (LAI) was measured using a LAI-2000 analyzer. Data sets were analyzed by empirical approaches using simple vegetation indices (VIs), NDVI and RVI.
TAKAHASHI, Toshimori, YASUOKA, Yoshifumi
openaire   +2 more sources

Optimal Exploitation of the Sentinel-2 Spectral Capabilities for Crop Leaf Area Index Mapping [PDF]

, 2012
The continuously increasing demand of accurate quantitative high quality information on land surface properties will be faced by a new generation of environmental Earth observation (EO) missions.
Mauser, Wolfram, Tobias B. Hank, Hank T. B., Francesco Vuolo, Wolfram Mauser, Richter, Katja, Vuolo, Francesco, Hank, Tobias B., Richter K., D'Urso, Guido, Guido D’Urso, Vuolo F., Mauser W., Katja Richter   +13 more
core   +1 more source

Redox‐Dependent Chaperoning of GBF1 Condensates Regulates Seed Germination in Arabidopsis

Advanced Science, EarlyView.
In dormant seeds (low ROS), GBF1 forms liquid condensates to repress the germination gene CathB3, and the chaperone GIP1 maintains condensate liquidity and repressive activity. Upon imbibition (high ROS), ROS oxidize GIP1 during germination, impairing its chaperone function.
Yunying Wang, Xiaofeng Fang
wiley   +1 more source

Natural Variation of NAR5 Determines Nitrogenase Activity and the Yield in Soybean

Advanced Science, EarlyView.
This study identified NAR5, a gene encoding a subtilisin‐like protease, that regulates nitrogenase activity in soybean nodules. Overexpressing NAR5 delayed nodule senescence, enhancing nitrogenase activity, yield, and low‐nitrogen tolerance. The elite haplotype NAR5HapI‐1 linked to superior nitrogenase activity and greater seed weight has been ...
Chao Ma, Hanyu Zhao, Haojie Feng, Xulun Dong, Lin Chen, Mingliang Yang, Runyi Chen, Chengjun Lei, Chunyan Liu, Qingshan Chen, Dawei Xin, Jinhui Wang   +11 more
wiley   +1 more source

Detecting change in vegetation condition using high resolution multispectral imagery

, 2011
Remote sensing of vegetation condition using high resolution digital multispectral imagery (DMSI) is an option for land managers interested in quantifying the distribution and extent of dieback in native forest.
Stone, C., Hardy, G., Evans, B., Lyons, T., Barber, P.A.   +4 more
core  

Global Comparison of Leaf Area Index Products over Water-Vegetation Mixed Heterogeneous Surface Network (HESNet-WV)

, 2023
Spatial land surface heterogeneities are widespread at various scales and represent a great challenge to leaf area index (LAI) retrievals and product validations.
Chenpeng Gu, Chang Liu, Jing Li, Faisal Mumtaz, Hu Zhang, Jing Zhao, Qinhuo Liu, Baodong Xu, Yadong Dong   +8 more
core   +1 more source

Polar Lattice‐Distorted Motifs Enable Synergy of Local Polarization/Dipole Fields for Concurrent Glyphosate Wastewater Remediation and CO Evolution

Advanced Science, EarlyView.
Photocatalytic treatment of glyphosate herbicide in agricultural wastewater is achieved through the cooperative effect of the local polarization field and dipole field mediated by lattice‐distorted carbon nitride. Glyphosate is completely degraded via selective C─P bond cleavage with a CO evolution rate of 1166 µmol g−1 h−1.
Daoping Chen, Huan Liu, Tengyu Liu, Jie Li, Qizhi Luo, Yan Zhang, Shengkun Li, Hu Li   +7 more
wiley   +1 more source

The Optimal Threshold and Vegetation Index Time Series for Retrieving Crop Phenology Based on a Modified Dynamic Threshold Method

, 2019
Crop phenology is an important parameter for crop growth monitoring, yield prediction, and growth simulation. The dynamic threshold method is widely used to retrieve vegetation phenology from remotely sensed vegetation index time series.
Clement Atzberger, Jianhong Liu, Wenquan Zhu, Xin Huang, Qiufeng Liu   +4 more
core   +1 more source