Results 21 to 30 of about 8,356,604 (280)

Evolutionary Dynamics of Cucumber Mosaic Virus Satellite RNA during Natural Epidemics in Italy

open access: yesVirology, 1997
The evolutionary dynamics of 22 variants of cucumber mosaic virus satellite RNA (CMV satRNA) isolated in Italy during virus epidemics from 1988 to 1993 were investigated on the basis of their primary structure and biological properties. Most of the variants were amplified from total nucleic acid preparations extracted from field-infected plants, thus ...
Grieco F, Lanave C, Gallitelli, D
openaire   +3 more sources

Tropical Cyclone Wind Field Reconstruction and Validation Using Measurements from SFMR and SMAP Radiometer

open access: yesRemote Sensing, 2022
Accurate information on tropical cyclone position, intensity, and structure is critical for storm surge prediction. Atmospheric reanalysis datasets can provide gridded, full coverage, long-term and multi-parameter atmospheric fields for the research on ...
Xiaohui Li   +6 more
doaj   +1 more source

Recovery Dynamics of Lands Disturbed by Mining Operations due to Self-Organizing Principle of Natural Systems and its Forecasting Using Satellite Data [PDF]

open access: yesMining Industry (Gornay Promishlennost), 2020
Environmental issues associated with the development of mineral deposits are largely caused by the need to store mining and processing waste which becomes a source of environmental pollution. Large areas of dumped ore processing wastes determine the expediency of applying satellite data to monitor the environmental condition of the disturbed lands in ...
S.P. Mesyats, S.P. Ostapenko
openaire   +1 more source

Simulation of Sedimentation in Lake Taihu with Geostationary Satellite Ocean Color Data

open access: yesRemote Sensing, 2019
In this study, the goal is to estimate the sedimentation on the bottom bed of Lake Taihu using numerical simulation combined with geostationary satellite ocean color data.
Anpeng He   +6 more
doaj   +1 more source

The Atmospheric Correction of COCTS on the HY-1C and HY-1D Satellites

open access: yesRemote Sensing, 2022
The data quality of the remote sensing reflectance (Rrs) from the two ocean color satellites HaiYang-1C (HY-1C) and HaiYang-1D (HY-1D) and the consistency with other satellites are critical for the products.
Zhihua Mao   +6 more
doaj   +1 more source

A new merged dataset of global ocean chlorophyll-a concentration for better trend detection

open access: yesFrontiers in Marine Science, 2023
Chlorophyll-a concentration (Chla) is recognized as an essential climate variable and is one of the primary parameters of ocean-color satellite products.
Shujie Yu   +6 more
doaj   +1 more source

Self-organising satellite constellation in geostationary Earth orbit [PDF]

open access: yes, 2015
This paper presents a novel solution to the problem of autonomous task allocation for a self-organizing satellite constellation in Earth orbit. The method allows satellites to cluster themselves above targets on the Earth’s surface.
Colombo, Camilla   +3 more
core   +3 more sources

Upper Ocean Structure Determines the Contrasting Typhoon‐Induced Chlorophyll‐a Responses in the Northwest Pacific

open access: yesGeophysical Research Letters, 2023
The frequent typhoons in the northwest Pacific drive oceanic responses, for example, changes in sea surface temperature (SST) and chlorophyll‐a (Chl‐a). A composite analysis shows that SST (Chl‐a) around the typhoon center decreases (increases).
Y. Jiang   +6 more
doaj   +1 more source

Flight Dynamics Operations of the TanDEM-X Formation [PDF]

open access: yes, 2012
Since end of 2010 the German TerraSAR-X and TanDEM-X satellites are routinely operated as the first configurable single-pass Synthetic Aperture Radar interferometer in space. The two 1340 kg satellites fly in a 514 km sun-synchronous orbit.
Aida, Saika   +4 more
core   +1 more source

Evaluating Atmospheric Correction Methods for Sentinel−2 in Low−to−High−Turbidity Chinese Coastal Waters

open access: yesRemote Sensing, 2023
Inaccuracies in the atmospheric correction (AC) of data on coastal waters significantly limit the ability to quantify the parameters of water quality. Many studies have compared the effects of the atmospheric correction of data provided by the Sentinel−2
Shuyi Zhang   +6 more
doaj   +1 more source

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