Results 21 to 30 of about 7,874,791 (304)

ECOLOGICAL ASSESSMENT OF STEPPE RANGELANDS IN THE AIN SEFRA REGION (SOUTHWESTERN ALGERIA)

open access: yesNatural Resources and Sustainable Development, 2023
This research was carried out in the Ain Sefra region of Algeria’s southwest. Satellite data monitored steppe rangelands’ spatiotemporal evolution and land cover dynamics.
Naziha Benamara   +2 more
doaj   +1 more source

THE COSMIC EVOLUTION OF FAINT SATELLITE GALAXIES AS A TEST OF GALAXY FORMATION AND THE NATURE OF DARK MATTER [PDF]

open access: yesThe Astrophysical Journal, 2013
Accepted for publication in ApJ, revised to incorporate referee ...
Nierenberg, A. M.   +4 more
openaire   +2 more sources

Impact Rates in the Outer Solar System

open access: yesThe Planetary Science Journal, 2023
Previous studies of cometary impacts in the outer solar system used the spatial distribution of ecliptic comets (ECs) from dynamical models that assumed ECs began on low-inclination orbits (≲5°) in the Kuiper Belt.
David Nesvorný   +4 more
doaj   +1 more source

A drone- and field-based investigation of the land degradation and soil erosion at an opencast coal mine dump after 5 years’ evolution of natural processes

open access: yesInternational Journal of Coal Science & Technology, 2022
Opencast coal mining has a large impact on the land surface, both at the mining pits themselves and at waste sites. After artificial management is stopped, a reclaimed opencast coal mine dump is affected by wind and water erosion from natural processes ...
Wu Xiao   +5 more
semanticscholar   +1 more source

Bridging the Gap Between Experimental and Natural Fabrics: Modeling Ice Stream Fabric Evolution and its Comparison With Ice‐Core Data

open access: yesJournal of Geophysical Research - Solid Earth, 2023
Fabrics, also known as textures or crystallographic preferred orientations, reveal information about the deformation history of the flow of polycrystalline materials, including glacial ice, olivine in the mantle, and feldspar and quartz in the crust. Ice
Daniel H. Richards   +4 more
semanticscholar   +1 more source

Typology of forest hunting grounds [PDF]

open access: yesСибирский лесной журнал, 2023
The analysis of the developed classification schemes of forest hunting grounds is given. Previously, forest typology was taken as a basis with a 4-level division (category-class-group of types-type).
A. G. Rassolov, A. S. Shishikin
doaj   +1 more source

Satellite-Derived Barrier Response and Recovery Following Natural and Anthropogenic Perturbations, Northern Chandeleur Islands, Louisiana

open access: yesRemote Sensing, 2021
The magnitude and frequency of storm events, relative sea-level rise (RSLR), sediment supply, and anthropogenic alterations drive the morphologic evolution of barrier island systems, although the relative importance of any one driver will vary with the ...
J. Bernier, J. Miselis, N. Plant
semanticscholar   +1 more source

Satellite Measured Ionospheric Magnetic Field Variations over Natural Hazards Sites

open access: yesRemote Sensing, 2021
Processes and threats related to natural hazards play an important role in the evolution of the Earth and in human history. The purpose of this study is to investigate magnetic field variations measured at low Earth orbit (LEO) altitudes possibly ...
Christoph Schirninger   +14 more
semanticscholar   +1 more source

The Development of high fidelity linearized J2 models for satellite formation flying control [PDF]

open access: yes, 2005
The inclusion of the linearized J2 effect in the Hill equations of relative motion gives greater insight into satellite formation flying dynamics, and the opportunity to investigate alternative feedback control strategies for the station keeping task.
Roberts, Peter C. E.   +1 more
core   +4 more sources

Assessment of Burn Severity and Monitoring of the Wildfire Recovery Process in Mongolia

open access: yesFire, 2023
Due to the intensification of climate change around the world, the incidence of natural disasters is increasing year by year, and monitoring, forecasting, and detecting evolution using satellite imaging technology are important methods for remote sensing.
Battsengel Vandansambuu   +9 more
doaj   +1 more source

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