Results 71 to 80 of about 43,999 (288)

The density of mid-sized Kuiper belt objects from ALMA thermal observations [PDF]

open access: yes, 2017
The densities of mid-sized Kuiper belt objects are a key constraint into understanding the assembly of objects in the outer solar system. These objects are critical for understanding the currently unexplained transition from the smallest Kuiper belt ...
Brown, Michael E., Butler, Bryan J.
core   +3 more sources

Local Time Variability of Gravity Wave Activity Revealed by SABER Temperature Observations

open access: yesGeophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract The global characteristics of gravity wave potential energy variation depending on local time are analyzed using satellite observations covering a broad range of local times. A clear diurnal variation is observed in the equatorial region between 15°S and 15°N.
D. Koshin   +3 more
wiley   +1 more source

Utilising Drones in Agriculture: A Review on Remote Sensors, Image Processing and Their Application

open access: yesModern Agriculture, Volume 3, Issue 2, December 2025.
The utilisation of drones in agriculture involves the integration of advanced sensing technologies, data analytics and targeted applications. Drones equipped with sensors such as RGB, multispectral and hyperspectral capture diverse spatial and spectral data.
Chetan Yumnam   +10 more
wiley   +1 more source

An Overall Assessment of JPSS-2 VIIRS Radiometric Performance Based on Pre-Launch Testing

open access: yesRemote Sensing, 2018
The Visible Infrared Imaging Radiometer Suite (VIIRS) on-board the second Joint Polar Satellite System (JPSS) completed its sensor level testing in February 2018.
Hassan Oudrari   +6 more
doaj   +1 more source

Thermospheric Nitric Oxide Density From SABER: Local Time Dependence and Validation Against Independent Observations

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 12, December 2025.
Abstract The Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) nitric oxide (NO) concentration is a newly derived data set from SABER NO emission rate measurements, covering altitudes from 120 to ∼250 km with full local time coverage.
Ningchao Wang   +4 more
wiley   +1 more source

Spatio-Temporal Assessment of Tuz Gölü, Turkey as a Potential Radiometric Vicarious Calibration Site

open access: yesRemote Sensing, 2014
The paper provides an assessment of Tuz Gölü, a site in Turkey proposed for the radiometric vicarious calibration of satellite sensors, in terms of its spatial homogeneity as expressed in visible and near-infrared (VNIR) wavelengths over a 25-year period
Vincent O. Odongo   +2 more
doaj   +1 more source

The Flexible Microwave Payload-2: A SDR-Based GNSS-Reflectometer and L-Band Radiometer for CubeSats

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
This article presents the FMPL-2 on board the FSSCat mission, the 2017 ESA Small Sentinel Satellite Challenge and overall Copernicus Masters Competition winner.
Joan Francesc Munoz-Martin   +3 more
doaj   +1 more source

Mesopause‐Region Gravity Wave Activity Due To Tropical Convection as Observed by AWE

open access: yesGeophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract Mesopause‐region (∼ ${\sim} $87 km) gravity waves (GWs) generated by tropical convection are investigated within the four longitude sectors encompassing Africa, the Indian Ocean, the Intertropical Convergence Zone, and South America during the Dec 2023–Feb 2024 Southern Hemisphere monsoon season.
Jeffrey M. Forbes   +8 more
wiley   +1 more source

Design and Characterization of the Multi-Band SWIR Receiver for the Lunar Flashlight CubeSat Mission

open access: yesRemote Sensing, 2019
Lunar Flashlight (LF) is an innovative National Aeronautics and Space Administration (NASA) CubeSat mission that is dedicated to quantifying and mapping the water ice harbored in the permanently shadowed craters of the lunar South Pole.
Quentin Vinckier   +6 more
doaj   +1 more source

A pilot study: Can calcaneus radiographic image be used to determine sex and breed in cats?

open access: yesVeterinary Medicine and Science, 2022
This study examined whether radiographic images measurements of the calcaneus in cats are determinative of sex and breed. For this purpose, radiographic images of 70 cats (37 male and 33 females) of different ages (from one to 18 years) and different ...
Esra Şenol   +5 more
doaj   +1 more source

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