Results 21 to 30 of about 114,080,372 (200)

Water Quality Retrieval from Landsat-9 (OLI-2) Imagery and Comparison to Sentinel-2

Remote Sensing, 2022
The Landsat series has marked the history of Earth observation by performing the longest continuous imaging program from space. The recent Landsat-9 carrying Operational Land Imager 2 (OLI-2) captures a higher dynamic range than sensors aboard Landsat-8 ...
Milad Niroumand-Jadidi, Francesca Bovolo, Mariano Bresciani, Peter Gege, Claudia Giardino   +4 more
doaj   +1 more source

Identification The Content of Lead (Pb), Mercury (Hg), Chlorophyll-a, and Cell Morphology of Seaweed Kappaphycus alvarezii in Bluto and Saronggi Water, Sumenep, Madura, East Java

Journal of Marine and Coastal Science, 2020
Kappaphycus alvarezii is one of Indonesia's export commodities because it has high economic value as food and industry. One area in East Java which is the center of seaweed cultivation is Sumenep regency such as Saronggi and Bluto.
Aisyah Afrianti, Farah Nabilah, Reysa Sasmaya Wahyadyatmika, Moch. Amin Alamsjah, Agustono Agustono, Abdul Manan, Boedi Setya Rahardja   +6 more
doaj   +1 more source

Use of the Sentinel-2 and Landsat-8 Satellites for Water Quality Monitoring: An Early Warning Tool in the Mar Menor Coastal Lagoon

Remote Sensing, 2022
During recent years, several eutrophication processes and subsequent environmental crises have occurred in Mar Menor, the largest hypersaline coastal lagoon in the Western Mediterranean Sea.
Isabel Caballero, Mar Roca, Juan Santos-Echeandía, Patricia Bernárdez, Gabriel Navarro   +4 more
doaj   +1 more source

Research Paper: Optical Properties of Algae in Order to Design and Build a Device for Measuring the Amount of Chlorophyll in Water Reservoirs Using the Optical Fluorescence Emission Method [PDF]

فیزیک کاربردی ایران, 2023
In this article, we will first get acquainted with the absorption and emission optical properties of algae and types of chlorophylls, and then we will examine the optical setup for measuring the photoluminescence light produced by algae, which is the ...
Ehsan Koushki, Eisa Kohan-Baghkheirati
doaj   +1 more source

Deriving sun-induced chlorophyll fluorescence from airborne based spectrometer data [PDF]

, 2010
Sun-induced chlorophyll fluorescence (Fs) is a promising parameter for remote measuring plant photosynthesis. It has been demonstrated that Fs at cell and leaf level is strongly related to photosynthesis.
Schaepman, Michael E; https://orcid.org/, Rascher, U., Schaepman, M., Schickling, A, Schaepman, M.E., Schlapfer, D., Schläpfer, D, Rascher, U, Damm, A; https://orcid.org/, Damm, A., Schickling, A.   +10 more
core   +1 more source

ESTIMASI ZONA POTENSIAL PENANGKAPAN IKAN (ZPPI) PROVINSI BENGKULU MENGGUNAKAN CITRA SATELIT MODIS AQUA

JFMR-Journal of Fisheries and Marine Research, 2019
The research aims to; (1) knowing the traditional parameters of the Bengkulu province community in determining fishing zones, (2) mapping the potential fishing zones (ZPPI) in the West Coast waters of Bengkulu province.
Rina Julita, Mr. Mujiono
doaj   +1 more source

Influence of alcoholic extracts from Helianthus annnus L. roots on the photosynthetic activity of Sinapis alba L. cv. Barka plants

Acta Agriculturae Scandinavica. Section B, Soil and Plant Science, 2020
Allelopathy substances stimulate or inhibit seed germination, growth and development of plant species living in their neighbouring, or occupying the same place directly after them.
Joanna Puła, Peiman Zandi, Alina Stachurska-Swakoń, Beata Barabasz-Krasny, Katarzyna Możdżeń, Yaosheng Wang   +5 more
doaj   +1 more source

An Assessment of Photosynthetic Activity in Large Benthic Foraminifers and the Optimization of Light Intensity for Lab-scale Cultivation

Journal of Water and Environment Technology, 2021
We assessed the photosynthetic efficiency of the lab-cultured large benthic foraminifers (LBFs), Calcarina gaudichaudii and Baculogypsina sphaerulata, by means of a pulse-amplitude-modulated (PAM) fluorometer for representative photosynthetic activity ...
Shumona Akther, Wenzhao Sun, Preeti Pokhrel, Jumpei Suzuki, Masafumi Fujita   +4 more
doaj   +1 more source

Physical and Biochemical Responses to Sequential Tropical Cyclones in the Arabian Sea

Remote Sensing, 2022
The upper-ocean physical and biochemical responses to sequential tropical cyclones (TCs) Kyarr and Maha in the Arabian Sea (AS) were investigated using data from satellites and Bio-Argo floats. Corresponding to slow and strong sequential TCs, two cooling
Tongyu Wang, Fajin Chen, Shuwen Zhang, Jiayi Pan, Adam T. Devlin, Hao Ning, Weiqiang Zeng   +6 more
doaj   +1 more source

Estudo das diferentes formas de fósforo nas águas da plataforma continental do Amazonas Study of different forms of phosphorus in the Amazon continental shelf waters

Química Nova, 2007
Hydrological samples were collected on the continental shelf of the Amazon river to determine particulate organic and inorganic matter, dissolved organic phosphorus (DOP), phosphate, total particulate phosphorus (TPP), chlorophyll a, temperature ...
Maria de Lourdes Souza Santos, Kátia Muniz, Fernando Antonio do Nascimento Feitosa, Benício de Barros Neto   +3 more
doaj   +1 more source