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Retrieval of Suspended Sediment Concentrations in the Pearl River Estuary Using Multi-Source Satellite ImageryMonitoring and quantifying suspended sediment concentrations (SSC) in estuaries such as the Pearl River Estuary (PRE) provide crucial information for environmental processes, hydrological infrastructure, and navigation. Traditional SSC mapping based on in situ investigations lacks the spatial coverage necessitated by detailed analysis. Whereas many previous studies have shown that SSC monitoring based on satellite imagery is an effective way to investigate the patterns and changes of SSC across a large estuarine area at a suitable scale. However, as satellite images from individual sensors often cannot be guaranteed for large spatial scale or long-term studies, using multi source s...
release time: 2022 - 09 - 01
Views:10
Retrieval of Suspended Sediment Concentrations in the Pearl River Estuary Using Multi-Source Satellite ImageryMonitoring and quantifying suspended sediment concentrations (SSC) in estuaries such as the Pearl River Estuary (PRE) provide crucial information for environmental processes, hydrological infrastructure, and navigation. Traditional SSC mapping based on in situ investigations lacks the spatial coverage necessitated by detailed analysis. Whereas many previous studies have shown that SSC monitoring based on satellite imagery is an effective way to investigate the patterns and changes of S...
release time: 2022 - 09 - 01
Views:10
Estimation of total iron in soil using a water-absorption-peak-based color reconstructing machine (WCRM) methodSoil iron (Fe) is one of the necessary trace elements for plant growth. An iron deficit will affect the growth of plants, but excess iron can pollute soil and water and harm human health through the food chain and water sources. Effective monitoring of the dynamic change of soil Fe is important to guarantee soil and water quality, and human health. Soil spectroscopy technology has recently received extensive attention and has been used in the estimation of soil properties, because it ...
release time: 2022 - 08 - 01
Views:0
Retrieving soil heavy metals concentrations based on GaoFen-5 hyperspectral satellite image at an opencast coal mine, Inner Mongolia, ChinaSoil heavy metals pollution has been becoming one of the severely environmental issues globally. Although mine resources development is vital for socioeconomic, some adverse effects generated by mine development on the natural environment were unavoidable. So, investigating soil heavy metals distribution in the open-pit coal mine is strongly desired because the results are meaningful for detecting contaminated fields, supplying land reclamation strateg...
release time: 2022 - 05 - 26
Views:1
Soil moisture content estimate with drying process segmentation using shortwave infrared bandsSoil moisture is an essential factor directly impacting a variety of environmental processes, including evaporation, infiltration, and runoff, etc. Moreover, soil moisture also plays an important role in related fields of studies, such as evapotranspiration and food security for agriculture, wetland degradation for ecosystem balance, drought for climate change, and even energy exchange between land-atmosphere interface.Ground-based measurements can provide data that are easily calibrated and acquired ...
release time: 2022 - 05 - 07
Views:2
In recent decades, massively increasing nutrient discharge from soil erosion, agricultural activity, and anthropogenic sewage has resulted in the significant deterioration and eutrophication of freshwater ecosystems, becoming a pressing environmental problem in many countries. Eutrophication results in undesirable ecological consequences. Phosphorus is an essential bio-limiting nutrient responsible for eutrophication and water quality deterioration, thereinto particulate phosphorus (PP) serves as an important potential source of phosphorus for the growth of phytoplankton and bacteria, thereby ...
release time: 2022 - 04 - 25
Views:6
Estimation of biomass and nutritive value of grass and clover mixtures by analyzing spectral and crop height data using chemometric methods Accurate estimation of forage characteristics is needed to guide decision making on fertilization and harvesting schedules for farmers. It is a common practice to estimate forage nutritive value by laboratory analysis, which limits in-field decision making. Field spectroscopy offers a nondestructive approach to obtain crop biochemical information by measuring and analyzing canopy spectral reflectance (CSR). Crop height is an important agronomic parame...
release time: 2022 - 01 - 24
Views:20
PROSDM: Applicability of PROSPECT model coupled with spectral derivatives and similarity metrics to retrieve leaf biochemical traits from bidirectional reflectanceLeaf biochemical traits provide valuable information on understanding plant photosynthetic function, dynamic growth, nutrient cycling, and primary production. Leaf chlorophyll content (Cab), carotenoid content (Cxc), water content (Cw), and dry matter content (Cm) are considered as four main important leaf biochemical traits, which are connected to plant healthy and growth status, such as photosynthesis, nitrogen, stresses, and senes...
release time: 2021 - 12 - 03
Views:18
Quantitative identification of yellow rust in winter wheat with a new spectral index: Development and validation using simulated and experimental dataYellow rust, caused by Puccinia striiformis f. sp. Tritici, is a serious disease attacking wheat (Triticum aestivum L.) across the globe. The occurrence of yellow rust can result in severe yield reduction and economic loss. Hyperspectral remote sensing has demonstrated potential in detecting yellow rust, with the majority of studies distinguishing qualitatively between diseased and healthy individuals or performing simple grading of disease sever...
release time: 2021 - 08 - 02
Views:12
ASD | Soil salinity inversion based on differentiated fusion of satellite image and ground spectraSoil salinization is an important limiting factor in agricultural development, ecological security, and sustainable land use. Accurately and rapidly obtaining information related to regional soil salinization and its geographical distribution is a precondition for the rational control and utilization of salinized soil. The traditional method of soil salinity mapping is time consuming and laborious. Ground-based methods, such as those based on electromagnetic induction meters, may not meet the temp...
release time: 2021 - 06 - 02
Views:33
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