Results 51 to 60 of about 134,109 (102)

Monitoring Flood Inundation Dynamics From Space

Reviews of Geophysics, Volume 64, Issue 1, March 2026.
Abstract With the increasing intensity and frequency of flood events worldwide, the need for accurate and timely inundation mapping has never been more critical. Large‐scale flood extent estimations are vital for coordinating effective disaster response, facilitating recovery, and building future resilience.
C. Campo, P. Tamagnone, S. Choy, T. D. Tran, G. J.‐P. Schumann, Y. Kuleshov   +5 more
wiley   +1 more source

Detectability of Phytoplankton Biomass Extremes Using Simulated Satellite Chlorophyll Observations

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Extreme open‐ocean phytoplankton events can influence marine ecosystems, yet their global occurrence, drivers, and consequences remain poorly understood. Most large‐scale studies rely on satellite chlorophyll, which provides only a surface view, is affected by physiological variability, and is often missing due to clouds and low sunlight. Here,
Genevieve L. Clow, Nicole S. Lovenduski, Michael N. Levy, Keith Lindsay, Samuel C. Mogen, Jennifer E. Kay   +5 more
wiley   +1 more source

Investigation on the Coherent Component of SHARAD Surface Echo and Surface Roughness: Scaling Behavior and Influence of Hurst Exponent

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract The radar surface echo can be separated into coherent and incoherent components by statistical approaches, and the coherent component can be described by a backscattering model related to the RMS height. According to backscattering models for fractal surfaces, the coherent power in decibels decreases with RMS height on a scale independent of ...
Tiansheng Hong, Yan Su, Elena Pettinelli, Roberto Orosei, Sebastian Emanuel Lauro, Zhibin Li, Chunyu Ding, Elisabetta Mattei, Barbara Cosciotti, Chunlai Li   +9 more
wiley   +1 more source

Model calculations of possible ionospheric backscatter echo area for a mid-latitude HF radar [PDF]

, 2005
P(論文)HF ray path calculation is performed in order to identify possible ionospheric backscatter echo area for an HF radar at mid-latitude. The calculation is made on the basis of the R.M. Jones and J.J. Stephenson (U.S. Dept. of Commerce, OT Rep.
Ogawa,Tadahiko, Nishitani,Nozomu
core   +1 more source

Stereo CUTLASS-a new capability for the SuperDARN HF radars [PDF]

, 2004
International audienceThe Super Dual Auroral Radar Network (SuperDARN), which consists of networks of HF radars surrounding the northern and southern poles, has proven to be an extremely successful experimental technique in a wide range of scientific ...
S. W. H. Cowley, Crooks, S. J., M. J. Parsons (7590314), Hamadyk, P., S. W. H. Cowley (7590302), Thornhill, J. D., P. J. Chapman, N. M. Wade (7590326), D. B. Payne (7590317), Chapman, P. J., J. A. Davies (4412452), E. C. Thomas, T. K. Yeoman, S. J. Crooks (7590305), Thomas, E. C., N. M. Wade, Yeoman, T. K., S. J. Crooks, D. B. Payne, R. J. Barnes, J. A. Davies, E. C. Thomas (7590320), Tim K. Yeoman (7583066), McWilliams, K. A., Barnes, R. J., Milan, S. E., K. A. McWilliams, R. J. Barnes (7590329), Lester, M., P. Hamadyk (7590308), M. J. Parsons, Steve E. Milan (7589666), Payne, D. B., Wade, N. M., M. Lester, M. Lester (7589660), P. J. Chapman (7590299), K. A. McWilliams (7590311), Davies, J. A., S. E. Milan, Cowley, S. W. H., J. D. Thornhill, J. D. Thornhill (7590323), Parsons, M. J., P. Hamadyk   +44 more
core   +2 more sources

Interferometric Study of Ionospheric Plasma Irregularities in Regions of Phase Scintillations and HF Backscatter. [PDF]

Geophys Res Lett, 2022
Spicher A, LaBelle J, Bonnell JW, Roglans R, Moser C, Fuselier SA, Bounds S, Clausen LBN, Di Mare F, Feltman CA, Jin Y, Kletzing C, Miloch WJ, Moen JI, Oksavik K, Sawyer R, Takahashi T, Yeoman TK.   +17 more
europepmc   +1 more source

Driving Influences of the Doppler Flash Observed by SuperDARN HF Radars in Response to Solar Flares. [PDF]

J Geophys Res Space Phys, 2022
Chakraborty S, Qian L, Baker JBH, Ruohoniemi JM, Kuyeng K, Mclnerney JM.   +5 more
europepmc   +1 more source

Small-Scale Dynamic Aurora. [PDF]

Space Sci Rev, 2021
Kataoka R, Chaston CC, Knudsen D, Lynch KA, Lysak RL, Song Y, Rankin R, Murase K, Sakanoi T, Semeter J, Watanabe TH, Whiter D.   +11 more
europepmc   +1 more source

Dual Sounding Rocket and C/NOFS Satellite Observations of DC Electric Fields and Plasma Density in the Equatorial E- and F-Region Ionosphere at Sunset. [PDF]

J Geophys Res Space Phys, 2022
Pfaff R, Kudeki E, Freudenreich H, Rowland D, Larsen M, Klenzing J.   +5 more
europepmc   +1 more source

Topside Measurements at Jicamarca During the 2019-2020 Deep Solar Minimum. [PDF]

J Geophys Res Space Phys, 2021
Derghazarian S, Hysell DL, Varney RH.
europepmc   +1 more source