Results 41 to 50 of about 3,374 (202)

Performance Investigation of Four Ionospheric Models in Estimating hmF2 in High‐Latitude Regions

Space Weather, Volume 24, Issue 7, July 2026.
Abstract As a critical parameter characterizing the vertical structure of the ionosphere, the peak height of the F2 layer (hmF2) plays an essential role in frequency selection and signal propagation in high‐frequency (HF) communication systems. Accurate prediction of hmF2 is particularly important in high‐latitude regions.
T. Y. Li, Q. Yu, Y. F. Shi, C. Yang, J. Q. Fan, J. Wang   +5 more
wiley   +1 more source

Spatial variation in cartilage T2 of the knee [PDF]

Journal of Magnetic Resonance Imaging, 2001
AbstractTechnical limitations imposed by resolution and B1 homogeneity have thus far limited quantitative in vivo T2 mapping of cartilage to the patella. The purpose of this study is to develop T2 mapping of the femoral/tibial joint and assess regional variability of cartilage T2 in the knee. Quantitative in vivo T2 mapping of the knee was performed on
H E, Smith, T J, Mosher, B J, Dardzinski, B G, Collins, C M, Collins, Q X, Yang, V J, Schmithorst, M B, Smith   +7 more
openaire   +2 more sources

Spatial Heterogeneity and Inhomogeneity of Cirrus Microphysical Properties on Kilometer Spatial Scales

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Previous studies reporting the spatial inhomogeneity and heterogeneity of cirrus cloud properties have primarily been case studies derived from relatively small data sets. This study evaluates the spatial heterogeneity and inhomogeneity of cirrus bulk microphysical properties using ∼60 hr of in situ measurements from eight field campaigns. The
John D’Alessandro, Odran Sourdeval, Martina Krämer   +2 more
wiley   +1 more source

Whale foraging seascapes: Advective prey aggregation mechanisms predict North Atlantic right whale foraging grounds

Limnology and Oceanography, Volume 71, Issue 6, June 2026.
Abstract During foraging activity, baleen whales are generally dependent on the occurrence of dense prey patches. These are largely influenced by the interaction between ocean currents and the vertical distribution of individual prey. Identifying the spatio‐temporal dynamics of the areas where prey form dense aggregations, at submeso scale (~ 10 km ...
Andéol Bourgouin, Nicholas R. Record, Cédric Cotté, Frédéric Maps   +3 more
wiley   +1 more source

Evaluating commonly used tools to quantify human activity for protected area management

People and Nature, Volume 8, Issue 6, Page 1692-1704, June 2026.
Abstract Recreation in protected areas (PAs) is growing worldwide, potentially conflicting with wildlife and ecosystem protection. Efficiently estimating human activity in PAs is crucial for balancing a dual mandate of supporting visitor access and biodiversity, but managers lack clear recommendations about the conditions under which specific tools are
Alys Granados, Christopher Beirne, Sean Kearney, Catherine Sun, Courtney Hughes, Solène Marion, Annie Loosen, Anne Hubbs, Dan Farr, Mitchell Fennell, Michael Procko, Melanie Percy, John Paczkowski, Keegan Hoffman, Regan Kohlhardt, Jesse Whittington, Benjamin Curry, A. Cole Burton   +17 more
wiley   +1 more source

Spatial Variations in Vitreous Oxygen Consumption

PLOS ONE, 2016
We investigated the spatial variation of vitreous oxygen consumption in enucleated porcine eyes. A custom made oxygen source was fabricated that could be localized to either the mid or posterior vitreous cavity and steady state vitreous oxygen tension was measured as a function of distance from the source using a commercially available probe.
Murali, Karthik, Kang, Dongyang, Nazari, Hossein, Scianmarello, Nicholas, Cadenas, Enrique, Tai, Yu-Chong, Kashani, Amir, Humayun, Mark   +7 more
openaire   +5 more sources

Hétérogénéité spatiale des surfaces terrestres en télédétection : caractérisation et influence sur l'estimation des variables biophysiques

, 2004
Biophysical variable estimates from remote sensing data characterize plant canopy structure and functioning. The monitoring of earth surface dynamic processes at global scale requires high temporal frequency remote sensing observations which are provided
Garrigues, Sébastien
core   +2 more sources

Chroniques de la société japonaise : « Théâtre dansé » de Toshiki Okada

Critical Stages, 2011
Toshiki Okada, auteur et metteur en scène des plus marquants dans la nouvelle dramaturgie japonaise, inventeur d’une écriture et d’un langage scénique très physique, « dansé », revendique dans son théâtre la notion du réalisme et du quotidien.
Irène Sadowska Guillon
doaj  

Comparing v11.2 OCO‐2 and v11 OCO‐3 XCO2 ${\mathbf{X}}_{{\text{CO}}_{\mathbf{2}}}$ Retrievals With Ground‐Based COCCON Measurements

Earth and Space Science, Volume 13, Issue 6, June 2026.
Abstract The Orbiting Carbon Observatory‐2 and ‐3 (collectively termed “OCO‐2/3,” hereafter) missions, together, provide precise and accurate global data records that contribute to a better understanding of the variability in atmospheric carbon dioxide (CO2).
Saswati Das, Mahesh Kumar Sha, Darko Dubravica, Thomas E. Taylor, Matthäus Kiel, Joshua L. Laughner, Gregory B. Osterman, Christopher W. O’Dell, Brendan Fisher, Robert R. Nelson, Carlos Alberti, Bianca C. Baier, Dimitrios Balis, Hartmut Bösch, Andre Butz, Zhaonan Cai, Jia Chen, Frédéric Chevallier, Alexandru Dandocsi, Nicholas M. Deutscher, Manvendra K. Dubey, Dietrich G. Feist, Lena Feld, Jonathan E. Franklin, Matthias M. Frey, Omaira Garcia, Elaine Gottlieb, Konstantin Gribanov, David W. T. Griffith, Michel Grutter, Frank Hase, Eliezer S. Hernández, Neil Humpage, Laura T. Iraci, Nicole Jacobs, Sujong Jeong, Pascal Jeseck, Tomi Karppinen, Rigel Kivi, Morgan Lopez, Andreas Luther, Maria Makarova, Moritz Makowski, Erin McGee, Marios Mermigkas, Isamu Morino, Justus Notholt, Hirofumi Ohyama, Thomas Panou, Hayoung Park, Robert Parker, David F. Pollard, Markus Rettinger, Sébastien Roche, Coleen M. Roehl, Constantina Rousogenous, Kei Shiomi, William R. Simpson, Wolfgang Stremme, Kimberly Strong, Ralf Sussmann, Noemie L. Taquet, Yao Té, Chrysanthi Topaloglou, Geoffrey Toon, Qiansi Tu, Mihalis Vrekoussis, Pucai Wang, Thorsten Warneke, Steven C. Wofsy, Debra Wunch, Minqiang Zhou, Elizabeth Spicer, Annmarie Eldering, Susan Kulawik, Abhishek Chatterjee, Vivienne H. Payne   +76 more
wiley   +1 more source

To Which Extent the Surface Water Ocean Topography (SWOT) Mission Is Currently Able to Monitor Water Surface Elevation and Extent on the French Lakes?

Earth and Space Science, Volume 13, Issue 6, June 2026.
Abstract This study (July 2023–December 2025) assesses the SWOT satellite's ability to measure water surface elevation (WSE) and surface water extent (SWE) over diverse French lakes. WSE estimates from SWOT were compared to in situ gauge data and conventional radar altimetry, while SWE was evaluated using the Global Water Watch (GWW) database.
C. Normandin, F. Frappart, C. Moisy, N. Baghdadi, B. Ygorra, L. Bourrel, P. Maisongrande, D. Leroux, J.‐F. Crétaux, J.‐P. Wigneron   +9 more
wiley   +1 more source