Sun-induced chlorophyll fluorescence (SIF) is a promising new tool for remotely estimating photosynthesis. However, the degree to which incoming solar radiation and structure of canopy rather than leaf physiology contribute SIF variations still not well characterized. Therefore, we investigated relationships between variables that at least partly capture component SIF. For this, relied on high-...

This study presents a large-scale synthesis of water-soluble sodium fluosilicate (Na(2)SiF(6)) nanowires, which serve as a versatile template for producing nanotubes.

The upcoming Fluorescence Explorer (FLEX) mission will provide sun-induced fluorescence (SIF) products at unprecedented spatial resolution. Thus, accurate calibration and validation (cal/val) of these are key to guarantee robust SIF estimates for the assessment quantification photosynthetic processes. In this study, we address one specific component uncertainty budget related retrieval: represe...

Abstract. The maximum rate of Rubisco carboxylation (Vcmax) determines leaf photosynthetic capacity and is a key parameter for estimating the terrestrial carbon cycle, but its spatial information lacking, hindering global ecological research. Here, we convert chlorophyll content (LCC) retrieved from satellite data to Vcmax, based on plants' optimal distribution nitrogen between light harvesting...

Agriculture and soil management practices are closely related to CO 2 emissions in crop fields. These directly interfere on the carbon dynamics between land atmosphere. In this study, we investigated temporal variability of column-averaged dry-air mole fraction atmospheric (xCO ), solar-induced chlorophyll fluorescence (SIF), normalized difference vegetation index (NDVI) areas with main agroeco...

Sea surface temperature (SST) substantially influences the land climate conditions through co-variability of multiple variables, which in turn affect structural and functional characteristics terrestrial vegetation. Our study explored varying responses vegetation photosynthesis India to SST variations tropical Indian Ocean during summer monsoon. To characterise photosynthetic activity, we used ...

Droughts represent one of the most severe abiotic stress factors that could result in great crop yield loss. Numerous vegetation indices have been proposed for monitoring condition under and assessing drought impacts on However, understanding comparison between traditional (VIs) newly emerging satellite Sun-Induced Chlorophyll Fluorescence (SIF) is still limited especially at multiple spatial s...

Mapping of terrestrial chlorophyll fluorescence from space has shown potential for providing global measurements related to gross primary productivity (GPP). In particular, space-based fluorescence may provide information on the length of the carbon uptake period. Here, we show an example of the ability of global satellite fluorescence retrievals to track seasonal cycle of photosynthesis as est...

In this paper, a strain-intensity-factor-based method is proposed to calculate the fatigue crack growth under the fully reversed loading condition. A theoretical analysis is conducted in detail to demonstrate that the strain intensity factor is likely to be a better driving parameter correlated with the fatigue crack growth rate than the stress intensity factor (SIF), especially for some metall...