Results 71 to 80 of about 62,511 (247)
Synthetic Aperture Radar Monitoring of Snow in a Reindeer-Grazing Landscape
Remote SensingSnow cover and runoff play an important role in the Arctic environment, which is increasingly affected by climate change. Over the past 30 years, winter temperatures in northern Sweden have risen by 2 °C, accompanied by an increase in precipitation. This
Ida Carlsson +3 more
doaj +1 more source
Analyzing Temporal and Spatial Characteristics of Crop Parameters Using Sentinel-1 Backscatter Data
Remote Sensing, 2019 The knowledge about heterogeneity on agricultural fields is essential for a sustainable and effective field management. This study investigates the performance of Synthetic Aperture Radar (SAR) data of the Sentinel-1 satellites to detect variability ...
Katharina Harfenmeister +2 more
doaj +1 more source
Effects of Mg on Microstructure and Solidification of a Hypereutectic Zn–8 wt.%Al Alloy
Advanced Engineering Materials, EarlyView.An appreciable set of results involving thermal data, microstructure, chemical composition, and microstructural growth laws is reported for ZnAlMg alloys. Such results demonstrate that ZnAlMg alloys have high potential for applications in automotive self‐lubricating components, batteries, and electrical systems.
Raí B. de Sousa +6 more
wiley +1 more source
Multispectral Multibeam Echo Sounder Backscatter as a Tool for Improved Seafloor Characterization
Geosciences, 2019 The establishment of multibeam echosounders (MBES), as a mainstream tool in ocean mapping, has facilitated integrative approaches towards nautical charting, benthic habitat mapping, and seafloor geotechnical surveys. The combined acoustic response of the
Craig J. Brown +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Near‐surface deuterium enrichment profiles for different microstructural types of TiAl after exposure at 700 °C in a heavy water‐containing environment. The deuterium levels are significantly higher than expected from natural occurrence, indicating that the heavy water dissociated during the exposure treatment and entered the specimens.
Jonathan D. H. Paul +5 more
wiley +1 more source
Simultaneous HF measurements of E- and F-region Doppler velocity at large flow angles [PDF]
, 2004 International audienceData collected by the CUTLASS Finland HF radar are used to illustrate the significant difference between the cosine component of the plasma convection in the F-region and the Doppler velocity of the E-region coherent echoes observed
Koustov, A. V. +5 more
core +2 more sources
Frontiers in Marine ScienceOver 16 years, Australia’s Integrated Marine Observing System (IMOS) Ocean Glider program has collected high-resolution optical sensor data (scatter, chlorophyll-a (Chl)) and colored dissolved organic matter (CDOM) fluorescence) across 400+ missions ...
Paul G. Thomson +2 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.A high interstital austenitic steel is additively manufactured and postdensified by HIP to eliminate gas porosity. Thereby, the loss of N and Mn in Ar HIP atmosphere is investigated. Further, HIP using N2 atmosphere is investigated which led to excessive nitride formation.
F. Großwendt +4 more
wiley +1 more source
, 2001 The establishment of an accurate global carbon budget and the consequent ability to understand and predict future environmental change is dependent on knowing the strength of terrestrial sinks and sources of carbon.
Kuplich, Tatiana Mora, Kuplich, T.M.
core +1 more source
The Intertwined Factors Affecting Altimeter Sigma0
Remote SensingRadar altimeters receive radio-wave reflections from nadir and determine surface parameters from the strength and shape of the return signal. Over the oceans, the strength of the return, termed sigma0 (σ0), is strongly related to the small-scale ...
Graham D. Quartly
doaj +1 more source