Results 141 to 150 of about 121,900 (307)

Evaluating land–sea linkages using land cover change and coral reef monitoring data: A case study from northeastern Puerto Rico

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Land cover change that leads to increased nutrient and sediment runoff is an important driver of change in coral reef ecosystems. In this study, we combined satellite remote sensing and field monitoring to assess concomitant changes in watershed land cover and coral cover in northeastern Puerto Rico in 2000–2015.
Pirta Palola   +5 more
wiley   +1 more source

Large‐scale characterization of horizontal forest structure from remote sensing optical images

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Sub‐meter resolution remote sensing data and tree crown segmentation techniques hold promise in offering detailed information that can support the characterization of forest structure from a horizontal perspective, offering new insights in the tree crown structure at scale.
Xin Xu   +12 more
wiley   +1 more source

Identification of initial vegetation and habitat changes in small temperate fens using remote sensing

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Temperate fens with only incipient, subtle signs of deterioration can be reliably identified using Sentinel‐2 and aerial imagery, which sensitively detect early productivity‐related structural changes. Abstract Small temperate fens rank among the most endangered habitats in temperate Europe.
Lubomír Tichý   +9 more
wiley   +1 more source

Quantifying Migratory Bat Movements in Central Europe Across Seasons and Years Using a Vertical‐Looking Radar

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Vertical‐looking radar provides a first multi‐year analysis of migratory bat phenology in Europe. Bat activity was lowest in winter, increased from spring, and peaked in summer, with similar timing of pre‐ and post‐maternity migrations across years.
Silvia Giuntini   +5 more
wiley   +1 more source

Intercomparison of CL31 and CL51 ceilometers and impact of installation angle on cloud base height measurement agreement

open access: yesWeather, EarlyView.
Lowest‐layer cloud base height (CBH) measurements obtained between July 2018 and December 2019 from four ceilometers at the Korea Standard Meteorological Observatory were compared to determine how ceilometer installation angle differentially affects CBH measurements.
Jaewon Kim   +3 more
wiley   +1 more source

Chinese Guidelines for the Diagnosis and Surgical Treatment of Adult Obstructive Sleep Apnea (2024)

open access: yesWorld Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.
ABSTRACT Obstructive sleep apnea (OSA) is a common chronic disorder characterized by abnormal breathing during sleeping. OSA can damage various organs throughout the body and is burdensome, both socially and economically. Moreover, as OSA has been increasingly studied in recent years, new evidence‐based guidelines for its diagnosis and surgical ...
Working Group of Guideline for the Diagnosis and Surgical Treatment of Adult OSA   +7 more
wiley   +1 more source

Suitable habitat of Himalayan wolf in Upper Mustang, Annapurna Conservation Area, Nepal

open access: yesWildlife Biology, EarlyView.
Decades ago, the Himalayan wolf Canis lupus chanco, a genetically distinct sub‐species of the gray wolf Canis lupus, faced persecution by local communities in the Nepalese Himalayas. Recently, wolf populations have returned and recolonized, sparking concerns about conflicts over livestock depredation, and emphasizing the urgent need for comprehensive ...
Deu Bahadur Rana   +5 more
wiley   +1 more source

Nesting ecology of an ice‐associated seabird, Kittlitz's murrelet, at the northern edge of its range

open access: yesWildlife Society Bulletin, EarlyView.
We studied the Kittlitz's murrelet, an ice‐associated seabird of conservation concern, at the northern edge of its range. Over a 2‐year period, we estimated nest density and success at 2 sites, captured and telemetered nesting murrelets, and tested the use of a thermal camera to improve nest detection.
Michelle L. Kissling   +9 more
wiley   +1 more source

Radar remote sensing

open access: yes, 2008
J Harris, E Grunsky, V Singhroy
openaire   +1 more source

CALIBRATION OF RADAR REMOTE SENSING SYSTEMS

open access: yes
The paper examines the issues of automatic internal calibration of airborne side-view radars for remote sensing of the Earth's surface such as "Cosmos-1500", "Sich-1", and aircraft systems - "Analog", "MARS". Estimates of measurement errors of quantitative values of the specific effective scattering area of probed surfaces and the results of radar ...
Yatsevich S., Yatsevich E.
openaire   +1 more source

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