Low complexity model to study scale dependence of phytoplankton dynamics in the tropical Pacific [PDF]
Phys. Rev. E 103, 012401 (2021), 2020 We demonstrate that a simple model based on reaction-diffusion-advection (RDA) equation forced by realistic surface velocities and nutrients is skilled in reproducing the distributions of the surface phytoplankton chlorophyll in the tropical Pacific. We use the low-complexity RDA model to investigate the scale-relationships in the impact of different ...
arxiv +1 more source
Coherence and population dynamics of chlorophyll excitations in FCP complex: Two-dimensional spectroscopy study [PDF]
, 2015 The energy transfer processes and coherent phenomena in the fucoxanthin-chlorophyll protein complex, which is responsible for the light harvesting function in marine algae diatoms, were investigated at 77 K by using two-dimensional electronic spectroscopy.
arxiv +1 more source
Adaptive Sampling of Algal Blooms Using Autonomous Underwater Vehicle and Satellite Imagery: Experimental Validation in the Baltic Sea [PDF]
arXiv, 2023 This paper investigates using satellite data to improve adaptive sampling missions, particularly for front tracking scenarios such as with algal blooms. Our proposed solution to find and track algal bloom fronts uses an Autonomous Underwater Vehicle (AUV) equipped with a sensor that measures the concentration of chlorophyll a and satellite data.
arxiv
Biochemical and physiological responses of Pinus eldarica and Platanus orientalis leaves to air pollution in Tehran [PDF]
مجله جنگل ایران, 2017 Air pollution has advers impacts on human beings, animals and plants. Leves and flowers are the most sensetive part of plants which are used as bioindicator under air pollution stress.
Esmaeil Khosropour +4 more
doaj
Frontiers in Environmental Science, 2020 Due to high spatiotemporal variability of aquatic systems, relationships between microplastic sources and sinks are highly complex and transportation pathways yet to be understood.
Sarah Piehl +9 more
doaj +1 more source
Investigation on data fusion of sun-induced chlorophyll fluorescence and reflectance for photosynthetic capacity of rice [PDF]
arXiv, 2023 Studying crop photosynthesis is crucial for improving yield, but current methods are labor-intensive. This research aims to enhance accuracy by combining leaf reflectance and sun-induced chlorophyll fluorescence (SIF) signals to estimate key photosynthetic traits in rice.
arxiv
Prospects for Detecting Oxygen, Water, and Chlorophyll on an Exo-Earth [PDF]
Proceedings of the National Academy of Sciences, September 16,
2014, vol. 111, issue 37, pp. 13278-13283, 2014 The goal of finding and characterizing nearby Earth-like planets is driving many NASA high-contrast flagship mission concepts, the latest of which is known as the Advanced Technology Large-Aperture Space Telescope (ATLAST). In this article, we calculate the optimal spectral resolution $R=\lambda/\delta\lambda$ and minimum signal-to-noise ratio per ...
arxiv +1 more source
Plants, 2017 An alternative way to increase plant productivity through the use of nitrogen fertilizers is to improve the efficiency of nitrogen utilization via genetic engineering.
Vadim G. Lebedev +2 more
doaj +1 more source
Estimating Chlorophyll a Concentrations of Several Inland Waters with Hyperspectral Data and Machine Learning Models [PDF]
, 2019 Water is a key component of life, the natural environment and human health. For monitoring the conditions of a water body, the chlorophyll a concentration can serve as a proxy for nutrients and oxygen supply. In situ measurements of water quality parameters are often time-consuming, expensive and limited in areal validity.
arxiv +1 more source
Frontiers in Marine Science, 2019 The data and results of the UK second application of the OSPAR Common Procedure (COMP) for eutrophication were used as a case study to develop a generic system (i) to evaluate an observational network from a multi-variable point of view, (ii) to ...
Luz María García-García +5 more
doaj +1 more source