Zobrazeno 1 - 10
of 17
pro vyhledávání: '"G. S. Okin"'
Autor:
D. M. Leung, J. F. Kok, L. Li, G. S. Okin, C. Prigent, M. Klose, C. Pérez García-Pando, L. Menut, N. M. Mahowald, D. M. Lawrence, M. Chamecki
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 6487-6523 (2023)
Desert dust accounts for most of the atmosphere's aerosol burden by mass and produces numerous important impacts on the Earth system. However, current global climate models (GCMs) and land-surface models (LSMs) struggle to accurately represent key du
Externí odkaz:
https://doaj.org/article/b4e0c2bbda5840c79f1da489aa135915
Autor:
S. L. LeGrand, T. W. Letcher, G. S. Okin, N. P. Webb, A. R. Gallagher, S. Dhital, T. S. Hodgdon, N. P. Ziegler, M. L. Michaels
Publikováno v:
Geoscientific Model Development, Vol 16, Pp 1009-1038 (2023)
Roughness features (e.g., rocks, vegetation, furrows) that shelter or attenuate wind flow over the soil surface can considerably affect the magnitude and spatial distribution of sediment transport in active aeolian environments. Existing dust and sed
Externí odkaz:
https://doaj.org/article/1abbe3d3b8754cad83eb09d077ddbf08
Publikováno v:
Geoscientific Model Development, Vol 14, Pp 7639-7657 (2021)
Fire causes abrupt changes in vegetation properties and modifies flux exchanges between land and atmosphere at subseasonal to seasonal scales. Yet these short-term fire effects on vegetation dynamics and surface energy balance have not been comprehen
Externí odkaz:
https://doaj.org/article/b5e533973ecf4eaa80c273f9d373a2d8
Autor:
Y. Yu, O. V. Kalashnikova, M. J. Garay, H. Lee, M. Choi, G. S. Okin, J. E. Yorks, J. R. Campbell, J. Marquis
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 1427-1447 (2021)
The current study investigates the diurnal cycle of dust and dust mixture loading across the global tropics, subtropics, and mid-latitudes by analyzing aerosol extinction and typing profiles observed by the Cloud-Aerosol Transport System (CATS) lidar
Externí odkaz:
https://doaj.org/article/9235fb876877480da2c2bfc07807b560
Autor:
A. R. Baker, M. Kanakidou, K. E. Altieri, N. Daskalakis, G. S. Okin, S. Myriokefalitakis, F. Dentener, M. Uematsu, M. M. Sarin, R. A. Duce, J. N. Galloway, W. C. Keene, A. Singh, L. Zamora, J.-F. Lamarque, S.-C. Hsu, S. S. Rohekar, J. M. Prospero
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Pp 8189-8210 (2017)
Anthropogenic nitrogen (N) emissions to the atmosphere have increased significantly the deposition of nitrate (NO3−) and ammonium (NH4+) to the surface waters of the open ocean, with potential impacts on marine productivity and the global carbon
Externí odkaz:
https://doaj.org/article/0b5c9c41a42840f1a480fc5d14909f69
Autor:
Elliott Liggett, Ernesto Diaz, Maciej D. Makowski, Matt Klimesh, Johannes Gross, Yutao He, Pamela Clark, Erik Thingvold, Michael Eastwood, Natalie M. Mahowald, Simon Shin, Olga V. Kalashnikova, Benjamin Phillips, Hung Nguyen, Jeff Cha, Ron L. Miller, Alan S. Mazer, Gregg A. Swayze, Lisa Fuentes, Eyal Ben Dor, Matthew Bennet, Carlos Pérez García-Pando, Daniel Ku, Amit Sen, Richard Purcell, Michael Bernas, Charlene Ung, Jack Pempejian, Randy Pollock, Bogdan V. Oaida, Christine Bradley, Roger N. Clark, Theresa Pace, Pantazis Mouroulis, Lucas A. Shaw, Jason A. Zan, Alberto Ortega, Thomas H. Painter, David R. Thompson, Bethany L. Ehlmann, Robert O. Green, Josh Schoolcraft, Amalaye Oyake, G. S. Okin, Paul Ginoux, S. Lundeen, Natalie Blackway, Vincent Realmuto, William Kert, Didier Keymeulen, Deborah Cloud, Lori Bator, Afsheen Vaid, Thang Pham, Manny Soriano, Helenann Kwong-Fu, Longlie Li, Riley M. Duren
Publikováno v:
2020 IEEE Aerospace Conference
The Earth Surface Mineral Dust Source Investigation, EMIT, is planned to operate from the International Space Station starting no earlier than the fall of 2021. EMIT will use visible to short wavelength infrared imaging spectroscopy to determine the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8703fca7a177c609e4fd8e2cb53930b6
https://zenodo.org/record/4075358
https://zenodo.org/record/4075358
Autor:
Robert A. Duce, Katja Fennel, Maria Kanakidou, Mitsuo Uematsu, Manmohan Sarin, Alex R. Baker, G. S. Okin, Jonathan Sharples, Kitack Lee, Arvind Singh, F. J. Dentener, Tim Jickells, Douglas G. Capone, Julie LaRoche, Andreas Oschlies, Parvadha Suntharalingam, J. K. Moore, Sybil P. Seitzinger, Lauren Zamora, Katye E. Altieri, Peter S. Liss, Jack J. Middelburg, Erik T. Buitenhuis
Publikováno v:
Global Biogeochemical Cycles.
We report a new synthesis of best estimates of the inputs of fixed nitrogen to the world ocean via atmospheric deposition and compare this to fluvial inputs and dinitrogen fixation. We evaluate the scale of human perturbation of these fluxes. Fluvial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4de6e055f137375618eb511bdd5eb184
https://doi.org/10.1002/2016gb005586
https://doi.org/10.1002/2016gb005586
Autor:
G. S. Okin, Herman H. Shugart, K. Dintwe, Kelly K. Caylor, Paolo D'Odorico, Abinash Bhattachan, Thoralf Meyer, Frances C. O'Donnell
Publikováno v:
African Journal of Ecology. 52:20-29
Savannah ecosystems are important carbon stocks on the Earth, and their quantification is crucial for understanding the global impact of climate and land-use changes in savannahs. The estimation of aboveground/belowground plant biomass requires teste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37c59c6bd18693dda63255ffd0a472df
https://doi.org/10.1111/aje.12086
https://doi.org/10.1111/aje.12086
Autor:
Jayne Belnap, Sujith Ravi, Paolo D'Odorico, John Wainwright, Teki Sankey, Brad P. Wilcox, Willis Gwenzi, Daniel L. Childers, Kelly K. Caylor, G. S. Okin, Laura Turnbull
Publikováno v:
Ecohydrology. 5:174-183
Ecohydrological feedbacks are likely to be critical for understanding the mechanisms by which changes in exogenous forces result in ecosystem state change. We propose that in drylands, the dynamics of ecosystem state change are determined by changes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cbc35ec385559314ba811b2afa75983
https://doi.org/10.1002/eco.265
https://doi.org/10.1002/eco.265
Publikováno v:
Remote Sensing of Environment. 114:792-804
Spatial distribution models are increasingly used in ecological studies, but are limited by the poor accuracy of remote sensing (RS) for mapping microhabitat (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e28fef82f3720a6b1c303f4e9feda34
https://doi.org/10.1016/j.rse.2009.11.016
https://doi.org/10.1016/j.rse.2009.11.016