Results 21 to 30 of about 406,860 (186)
Remote Sensing, 2021 Wetland vegetation aboveground biomass (AGB) directly indicates wetland ecosystem health and is critical for water purification, carbon cycle, and biodiversity conservation.
Chunhua Li, Lizhi Zhou, Wenbin Xu
doaj +1 more source
Remote Sensing, 2022 Forest logging detection is important for sustainable forest management. The traditional optical satellite images with visible and near-infrared bands showed the ability to identify intensive timber logging.
Yue Hu +3 more
doaj +1 more source
Narrow band based and broadband derived vegetation indices using Sentinel-2 Imagery to estimate vegetation biomass [PDF]
Global Journal of Environmental Science and Management, 2020 Forest’s ecosystem is one of the most important carbon sink of the terrestrial ecosystem. Remote sensing technology provides robust techniques to estimate biomass and solve challenges in forest resource assessment.
A.B. Imran +5 more
doaj +1 more source
Status of Phenological Research Using Sentinel-2 Data: A Review
Remote Sensing, 2020 Remote sensing of plant phenology as an indicator of climate change and for mapping land cover has received significant scientific interest in the past two decades.
Gourav Misra +2 more
doaj +1 more source
MERIS and the red-edge position
International Journal of Applied Earth Observation and Geoinformation, 2001 The Medium Resolution Imaging Spectrometer (MERIS) is a payload component of Envisat-1. MERIS will be operated over land with a standard 15 band setting acquiring images with a 300 m spatial resolution. The red-edge position (REP) is a promising variable for deriving foliar chlorophyll concentration, which plays an important role in ecosystem processes.
Clevers, J.G.P.W. +6 more
openaire +3 more sources
EFFECTS OF GF-6 SATELLITE RED-EDGE BANDS ON PEANUT DROUGHT MONITORING [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 Red-edge band is an indicator band to describe the health status of crops. In order to explore the impact of the red-edge bands on the accuracy of agricultural drought monitoring, this study used GF-6 WFV and Landsat8 to calculate the Red-edge Normalized
Y. Zhang +7 more
doaj +1 more source
Expanding the Timeline for Earth’s Photosynthetic Red Edge Biosignature [PDF]
The Astrophysical Journal Letters, 2019 Abstract When Carl Sagan observed the Earth during a Galileo fly-by in 1993, he found a widely distributed surface pigment with a sharp reflection edge in the red part of the spectrum, which, together with the abundance of gaseous oxygen and methane in extreme thermodynamic disequilibrium, were strongly suggestive of the presence of life
Jack T. O’Malley-James +1 more
openaire +2 more sources
Drones, 2023 The detection and mapping of winter wheat and the canopy cover of associated weeds, such as chickweed and hairy buttercup, are essential for crop and weed management.
Clement E. Akumu, Sam Dennis
doaj +1 more source
Gravity-modes in ZZ Ceti Stars. II. Effects of Turbulent Dissipation [PDF]
, 1998 We investigate dynamical interactions between turbulent convection and g-mode pulsations in ZZ Ceti variables (DAVs). Since our understanding of turbulence is rudimentary, we are compelled to settle for order of magnitude results.
Goldreich, P., Wu, Y.
core +2 more sources
Sustainable Irrigation Management of Ornamental Cordyline Fruticosa “Red Edge” Plants with Saline Water [PDF]
, 2019 The aim of this work was to analyze the influence of the salinity of the nutrient solution on the transpiration and growth of Cordyline fruticosa var. “Red Edge” plants. A specific irrigation management model was calibrated with the experimental data. An
Al-Hamdani +18 more
core +2 more sources