The emergence of satellites covering new electromagnetic wavelengthsallowed developing different vegetation indices, enabling the study theircorrelation with grain yield. In this sense, aimed to evaluate accuracy between mean values seven indices and corn yield in field by applying linear regression equations. NDVI, NDRE, GNDVI, GRNDVI, PNDVI were used, changes proposed equations GRNDVI PNDVI, ...

A correlation analysis was conducted between forest leaf area index (LAI) and two red edge parameters: red edge position (REP) and red well position (RWP), extracted from reflectance image retrieved from Hyperion data. Field spectrometer data and LAI measurements were collected within two days after the Earth Observing One satellite passed over the study site in the Patagonia region of Argentin...

Discrimination of mangrove stage changes is useful for the conservation this valuable natural resource. However, present-day optical satellite imagery not fully reliable due to its high sensitivity weather conditions and tidal variables. Here, we used Vertical Transmit—Vertical Receive Polarization (VV) Transmit—Horizontal (VH) backscatter from same multiple-incidence angles Sentinel-1 SAR C-ba...

Controlled tile drainage (CTD) practices are a promising tool for improving water balance, quality and increasing crop yield by raising shallow groundwater level capillary rise due to flow retardation. We tested the effect of CTD on growth grain spring barley, at study site in central Bohemia using vegetation indices from unmanned aerial vehicle (UAV) imagery Sentinel-2 satellite imagery. Tile ...

In Malaysia, the expansion of rubber trees, oil palm, and paddy plantations has become widely increased because economic demands. Crop identification or monitoring is one these applications since remote sensing provides precise, up-to-date, cost-effective data on a range crop kinds at various temporal geographic resolutions. This study recommended integrating multispectral images, tree canopy s...

Hydrocarbon leakage into the environment has large economic and environmental impact. Traditional methods for investigating seepages and their resulting pollution, such as drilling, are destructive, time consuming and expensive. Remote sensing is an efficient tool that offers a non-destructive investigation method. Optical remote sensing has been extensively tested for exploration of onshore hy...

Few studies of monitoring rocky desertification based on Sentinel-2 MSI image with higher spatial and temporal resolutions have been reported. In this paper, nine typical surface parameters that derived from including three red edge indices introduced to establish two types feature space index: point-to-line type point-to-point type. The results show that: (1) index has a applicability in obtai...

Results are presented from X-ray absorption spectroscopy based analysis of As, Cr, and V speciation within samples of bauxite ore processing residue (red mud) collected from the spill site at Ajka, Western Hungary. Cr K-edge XANES analysis found that Cr is present as Cr(3+) substituted into hematite, consistent with TEM analysis. V K-edge XANES spectra have E(1/2) position and pre-edge features...