Results 91 to 100 of about 22,060 (238)

End to End Satellite Servicing and Space Debris Management [PDF]

open access: yes, 2019
There is growing demand for satellite swarms and constellations for global positioning, remote sensing and relay communication in higher LEO orbits. This will result in many obsolete, damaged and abandoned satellites that will remain on-orbit beyond 25 ...
Chandra, Aman   +3 more
core   +2 more sources

Small and Medium‐Sized Inland Waterbodies: Water Volume Predictions and Flood Implications

open access: yesWater Resources Research, Volume 62, Issue 1, January 2026.
Abstract Small (<10 ha) and medium (10–100 ha) inland waterbodies are crucial for water storage and flood regulation, necessitating an improved understanding of their water volume. Traditional water volume measurement methods, modeling techniques, and advanced altimetry missions struggle to capture the non‐linear volume changes in these waterbodies ...
Ankit Sharma   +1 more
wiley   +1 more source

Hydrologic Dynamics of Ephemerally Flooded Playas in a Dryland Environment

open access: yesWater Resources Research, Volume 62, Issue 1, January 2026.
Abstract Ephemerally flooded playas are common in the southwestern United States and globally in drylands. Often formed in closed basins, playas are depressions which inundate infrequently from local precipitation and streamflow produced near the playa or from upland areas.
Charles R. Kimsal   +4 more
wiley   +1 more source

Improving CubeSat downlink capacity with active phased array antennas [PDF]

open access: yes, 2017
Master's Project (M.S.) University of Alaska Fairbanks, 2017Power budgets on small satellites are restricted by the limited surface area for solar panels. This limits the power available for radio communications, which constrains the downlink budget. The
Klein, Jonathan
core  

Perspectives on Systematic Cloud Microphysics Scheme Development With Machine Learning

open access: yesJournal of Advances in Modeling Earth Systems, Volume 18, Issue 1, January 2026.
Abstract Cloud microphysics—the collection of processes that govern the small‐scale formation, evolution, and interactions of liquid droplets and ice crystals in clouds and precipitation—remains a major source of uncertainty in weather and climate models.
Kara D. Lamb   +9 more
wiley   +1 more source

Combining Van Allen Probes and CubeSat Observations to Estimate Storm‐Time Maximum Outer Radiation Belt Electron Fluxes

open access: yesSpace Weather, Volume 24, Issue 1, January 2026.
Abstract Understanding and forecasting extreme radiation belt electron fluxes has been a major goal in space weather since their discovery in 1958. In this study, by combining electron flux data from multiple satellite missions in different orbits, including Van Allen Probes, Electron Losses and Fields Investigation, and Colorado Inner Radiation Belt ...
Man Hua   +6 more
wiley   +1 more source

The photon pair source that survived a rocket explosion

open access: yes, 2015
We report on the performance of a compact photon pair source that was recovered intact from a failed space launch. The source had been embedded in a nanosatellite and was designed to perform pathfinder experiments leading to global quantum communication ...
Chandrasekara, Rakhitha   +5 more
core   +1 more source

Coastline Vulnerability Assessment through Landsat and Cubesats in a Coastal Mega City

open access: yesRemote Sensing, 2020
According to the Intergovernmental Panel on Climate Change (IPCC), global mean sea levels may rise from 0.43 m to 0.84 m by the end of the 21st century. This poses a significant threat to coastal cities around the world.
M. Nazeer   +4 more
semanticscholar   +1 more source

A Century of Drought Research (1900–2023): Scientific Developments, Methodological Innovations, and Emerging Frontiers

open access: yesWater Resources Research, Volume 62, Issue 1, January 2026.
Abstract Drought significantly affects water resources, agriculture, energy, and ecosystems, revealing enduring socio‐economic vulnerabilities over the centuries. This review synthesizes a century of development and recent advances in drought research (1900–2023), drawing on a bibliometric analysis of over 152,000 peer‐reviewed publications. The review
Amitesh Sabut, Ashok Mishra
wiley   +1 more source

Irradiation Flux Modelling for Thermal–Electrical Simulation of CubeSats: Orbit, Attitude and Radiation Integration

open access: yesEnergies, 2020
During satellite development, engineers need to simulate and understand the satellite’s behavior in orbit and minimize failures or inadequate satellite operation.
Edemar Morsch Filho   +5 more
semanticscholar   +1 more source

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