Results 21 to 30 of about 27,676 (260)
Mapping Substrate Types and Compositions in Shallow Streams
Remote Sensing, 2019 Remote sensing of riverbed compositions could enable advances in hydro-morphological and habitat modeling. Substrate mapping in fluvial systems has not received as much attention as in nearshore, optically shallow inland, and coastal waters.
Milad Niroumand-Jadidi +2 more
doaj +1 more source
Remote Sensing, 2020 We present a new method for the detection of coral bleaching using satellite time-series data. While the detection of coral bleaching from satellite imagery is difficult due to the low signal-to-noise ratio of benthic reflectance, we overcame this ...
Yaping Xu +7 more
doaj +1 more source
Sensors, 2017 All empirical water column correction methods have consistently been reported to require existing depth sounding data for the purpose of calibrating a simple depth retrieval model; they yield poor results over very bright or very dark bottoms.
Yann G. Morel, Fabio Favoretto
doaj +1 more source
In-situ multispectral and bathymetric measurements over a supraglacial lake in western Greenland using a remotely controlled watercraft [PDF]
The Cryosphere, 2011 Supraglacial lakes form from meltwater on the Greenland ice sheet in topographic depressions on the surface, affecting both surface and sub-glacial processes.
M. Tedesco, N. Steiner
doaj +1 more source
Sensors, 2016 This study evaluated the ability to improve Sea-Viewing Wide Field-of-View Sensor (SeaWiFS) chl-a retrieval from optically shallow coastal waters by applying algorithms specific to the pixels’ benthic class. The form of the Ocean Color (OC) algorithm was
Tara Blakey +5 more
doaj +1 more source
The Sensitivity of Multi-spectral Satellite Sensors to Benthic Habitat Change
Remote Sensing, 2020 Coral reef ecosystems are under stress due to human-driven climate change and coastal activities. Satellite-based monitoring approaches offer an alternative to traditional field sampling measurements for detecting coral reef composition changes ...
Jiwei Li +3 more
doaj +1 more source
Experimental Study on Bottom-Up Detection of Underwater Targets Based on Polarization Imaging
Sensors, 2022 Previous studies on the polarization imaging of underwater targets mainly focused on top-down detection; however, the capacities of bottom-up detection were poorly known.
Tianfeng Pan +6 more
doaj +1 more source
Physics-Based Satellite-Derived Bathymetry (SDB) Using Landsat OLI Images
Remote SensingThe estimation of depth in optically shallow waters using satellite imagery can be efficient and cost-effective. Active sensors measure the distance traveled by an emitted laser pulse propagating through the water with high precision and accuracy if the ...
Minsu Kim +3 more
doaj +1 more source
Diversity and complexity in neural organoids
FEBS Letters, EarlyView.Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley +1 more source
Remote Sensing, 2021 Heterogeneity exists in the vertical distribution of the biochemical components of crops. A leaf chlorophyll deficiency occurs in the bottom- and middle-layers of crops due to nitrogen stress and leaf senescence.
Bin Wu +5 more
doaj +1 more source