Results 141 to 150 of about 44,738 (261)

From signal to location: using goniometer-derived Argos UHF power to enhance movement data for cryptic whales

open access: yesAnimal Biotelemetry
Background Satellite telemetry is a key method to study cetacean movements, but it is limited by sparse location data and positional errors. Positions are recorded only when animals surface and satellite coverage is available, creating large temporal ...
Anna Borroni   +6 more
doaj   +1 more source

A Data-Driven Battery Degradation Estimation Method for Low-Earth-Orbit (LEO) Satellites

open access: yesApplied Sciences
Battery degradation is a critical challenge in the operation and longevity of low-Earth-orbit (LEO) satellites because of its direct impact on mission reliability and power system performance.
Kyun-Sang Park, Seok-Teak Yun
doaj   +1 more source

Quantification of drag and lift imposed by pop-up satellite archival tags and estimation of the metabolic cost to cownose rays (Rhinoptera bonasus) [PDF]

open access: yes, 2005
The recent development of the pop-up satellite archival tag (PSAT) has allowed the collection of information on a tagged animal, such as geolocation, pressure (depth), and ambient water temperature.
Grusha, Donna S., Patterson, Mark R.
core   +1 more source

The United States Magnetotelluric Array and the National Impedance Map

open access: yesReviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract The United States Magnetotelluric Array (USMTArray) data set, collected in the years 2006–2024, consists of more than 1,700 long‐period magnetotelluric stations covering the entirety of the contiguous United States on a quasi‐regular 70 km grid.
Anna Kelbert   +7 more
wiley   +1 more source

Delta launch of the TELESAT-G mission [PDF]

open access: yes
Launch and deployment characteristics for the TELESAT-G (Anik-D) communications satellite are ...

core   +1 more source

Near real time seismic data from the coastal ocean [PDF]

open access: yes, 2016
A moored-buoy system for collecting near real-time seismic data from the coastal ocean has been developed and will be deployed for its initial field trial in the fall of 2016.
Alonso Seyos, Xavier   +4 more
core   +1 more source

Current Protections and Future Threats to Say's Spiketail Habitat in the Southeastern USA

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
Dragonflies and damselflies are important indicators of ecological integrity and environmental quality but remain underrepresented in conservation efforts, in part due to a lack of quantitative information regarding their habitat requirements. Species distribution models (SDMs) can facilitate conservation planning by allowing researchers to estimate ...
J. Matthew Flenniken   +2 more
wiley   +1 more source

Automated in situ observations of upper ocean biogeochemistry, bio-optics, and physics and their potential use for global studies [PDF]

open access: yes
The processes controlling the flux of carbon in the upper ocean have dynamic ranges in space and time of at least nine orders of magnitude. These processes depend on a broad suite of inter-related biogeochemical, bio-optical, and physical variables ...
Dickey, Tommy D.   +2 more
core   +1 more source

Trends in marine species distribution models: a review of methodological advances and future challenges

open access: yesEcography, Volume 2026, Issue 5, May 2026.
Correlative species distribution models (SDMs) are quantitative tools in biogeography and macroecology. Building upon the ecological niche concept, they correlate environmental covariates to species presence to model habitat suitability and predict species distributions.
Moritz Klaassen   +3 more
wiley   +1 more source

Contrasted habitat selection among Eurasian curlew populations according to landscape heterogeneity and breeding stage

open access: yesThe Journal of Wildlife Management, Volume 90, Issue 4, May 2026.
This study aimed to quantify the spatio‐temporal use of breeding environments by the Eurasian curlew in 5 contrasting agricultural landscapes. To this end, 64 individuals were tagged with GPS devices to assess their space use according to their breeding stages and define their foraging habitat selection.
Marie Donnez   +15 more
wiley   +1 more source

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