Zobrazeno 1 - 10
of 21
pro vyhledávání: '"R. J. Michaelides"'
Autor:
C. E. Miller, P. C. Griffith, E. Hoy, N. S. Pinto, Y. Lou, S. Hensley, B. D. Chapman, J. Baltzer, K. Bakian-Dogaheh, W. R. Bolton, L. Bourgeau-Chavez, R. H. Chen, B.-H. Choe, L. K. Clayton, T. A. Douglas, N. French, J. E. Holloway, G. Hong, L. Huang, G. Iwahana, L. Jenkins, J. S. Kimball, T. Loboda, M. Mack, P. Marsh, R. J. Michaelides, M. Moghaddam, A. Parsekian, K. Schaefer, P. R. Siqueira, D. Singh, A. Tabatabaeenejad, M. Turetsky, R. Touzi, E. Wig, C. J. Wilson, P. Wilson, S. D. Wullschleger, Y. Yi, H. A. Zebker, Y. Zhang, Y. Zhao, S. J. Goetz
Publikováno v:
Earth System Science Data, Vol 16, Pp 2605-2624 (2024)
Permafrost-affected ecosystems of the Arctic–boreal zone in northwestern North America are undergoing profound transformation due to rapid climate change. NASA's Arctic Boreal Vulnerability Experiment (ABoVE) is investigating characteristics that m
Externí odkaz:
https://doaj.org/article/b53ebb0eaea84b628354986c464a80ed
Publikováno v:
The Cryosphere, Vol 18, Pp 2531-2555 (2024)
Ice slabs are multi-meter-thick layers of refrozen ice that limit meltwater storage in firn, leading to enhanced surface runoff and ice sheet mass loss. To date, ice slabs have primarily been mapped using airborne ice-penetrating radar, which has lim
Externí odkaz:
https://doaj.org/article/35c3e3ff29aa441b8d86abcb5a17506c
Publikováno v:
Earth and Space Science, Vol 8, Iss 8, Pp n/a-n/a (2021)
Abstract We use Ice, Cloud, and land Elevation Satellite 2 (ICESat‐2) laser altimetry crossovers and repeat tracks collected over the North Slope of Alaska to estimate ground surface‐height change due to the seasonal freezing and thawing of the a
Externí odkaz:
https://doaj.org/article/79407307728a47d2a5d2d26a512185ec
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 57:10390-10397
We propose a novel method for quantifying and correcting phase errors in interferometric synthetic aperture radar (InSAR) data associated with signal decorrelation. This proposed method relates the observed phase nonclosure (referred to as the closur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e7a9ac6fbe686ce5bf3f9a176f7a296
https://doi.org/10.1109/tgrs.2019.2934362
https://doi.org/10.1109/tgrs.2019.2934362
The accuracy of geophysical parameter estimation made with interferometric synthetic aperture radar (InSAR) time-series techniques can be improved with rapidly increasing available data volumes and with the development of noise covariance matrices ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94656fa4d35ff0d99c5e3a57ae773e6c
https://resolver.caltech.edu/CaltechAUTHORS:20210121-152557122
https://resolver.caltech.edu/CaltechAUTHORS:20210121-152557122
Autor:
Yuhuan Zhao, Howard A. Zebker, Taylor D. Sullivan, Mahta Moghaddam, R. J. Michaelides, Kevin Schaefer, Elizabeth Wig, Andrew D. Parsekian, Richard H. Chen, Lingcao Huang
Publikováno v:
IGARSS
The Permafrost Dynamics Observatory (PDO) combines L-band interferometric synthetic aperture radar (InSAR) and P-band polarimetric synthetic aperture radar (PolSAR) to simultaneously estimate the seasonal thaw depth and soil moisture profile of the a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa64f6ffe7851da8a1f98b139a817c86
https://doi.org/10.1109/igarss47720.2021.9554288
https://doi.org/10.1109/igarss47720.2021.9554288
Autor:
Yuhuan Zhao, Elizabeth Wig, R. J. Michaelides, Howard A. Zebker, Andrew D. Parsekian, Taylor D. Sullivan, Leah K. Clayton, Mahta Moghaddam, Lingcao Huang, Kevin Schaefer, Richard H. Chen
Publikováno v:
Remote Sensing, Vol 13, Iss 2876, p 2876 (2021)
Remote Sensing
Volume 13
Issue 15
Pages: 2876
Remote Sensing
Volume 13
Issue 15
Pages: 2876
In permafrost regions, active layer thickness (ALT) observations measure the effects of climate change and predict hydrologic and elemental cycling. Often, ALT is measured through direct ground-based measurements. Recently, synthetic aperture radar (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d13bdf46d138d4c5adb0d0b7f02afaef
https://www.mdpi.com/2072-4292/13/15/2876
https://www.mdpi.com/2072-4292/13/15/2876
Autor:
Kevin Schaefer, Lin Liu, R. J. Michaelides, Taylor D. Sullivan, Richard H. Chen, Jingyi Chen, Mahta Moghaddam, Yuhuan Zhao, Andrew D. Parsekian, Xingyu Xu, Howard A. Zebker
Publikováno v:
Earth and Space Science, Vol 8, Iss 7, Pp n/a-n/a (2021)
Earth and Space Science (Hoboken, N.j.)
Earth and Space Science (Hoboken, N.j.)
Interferometric synthetic aperture radar (InSAR) has been used to quantify a range of surface and near surface physical properties in permafrost landscapes. Most previous InSAR studies have utilized spaceborne InSAR platforms, but InSAR datasets over
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87095a65589b4d18eaf83035755d1319
https://doaj.org/article/c8387d153b1c415e8e73f24b8f86a4cd
https://doaj.org/article/c8387d153b1c415e8e73f24b8f86a4cd
Publikováno v:
Earth and Space Science (Hoboken, N.j.)
Earth and Space Science, Vol 8, Iss 6, Pp n/a-n/a (2021)
Earth and Space Science, Vol 8, Iss 6, Pp n/a-n/a (2021)
In addition to spaceborne Interferometric Synthetic Aperture Radar (InSAR), airborne data such as those obtained by the Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) have also been utilized to measure surface subsidence in permafrost a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53eeb7eae8b39cc4b22a9c2b49242e1f
https://doi.org/10.1029/2020ea001631
https://doi.org/10.1029/2020ea001631
Autor:
Dustin M. Schroeder, R. J. Michaelides
Publikováno v:
Icarus. 326:29-36
Radar sounding reflectometry is a powerful method of inferring subsurface geophysical properties of planetary bodies. The upcoming Europa Clipper Mission will employ a dual frequency radar sounder to image and characterize Europa's subglacial environ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::597cd9cecda4055e2214b263d665115b
https://doi.org/10.1016/j.icarus.2019.02.037
https://doi.org/10.1016/j.icarus.2019.02.037