Results 31 to 40 of about 663,929 (162)

High resolution observations of spectral width features associated with ULF wave signatures in artificial HF radar backscatter [PDF]

, 2004
International audienceThe EISCAT high power heating facility at Tromsø, northern Norway, has been utilised to generate artificial radar backscatter in the fields of view of the CUTLASS HF radars.
Woodfield, E.E., Dhillon, R. S., J. A. Davies (4412452), Milan, S.E., T. K. Yeoman, R. S. Dhillon, L. J. Baddeley (7590143), D. M. Wright, E. E. Woodfield (7590071), E. E. Woodfield, Yeoman, T. K., Woodfield, E. E., J. A. Davies, Tim K. Yeoman (7583066), Davies, J.A., Milan, S. E., Wright, D.M., Lester, M., L. J. Baddeley, Wright, D. M., Steve E. Milan (7589666), M. Lester, R. Dhillon (7590146), M. Lester (7589660), Davies, J. A., S. E. Milan, D. M. Wright (7583069), Baddeley, L. J., Dhillion, R.S., Yeoman, T.K., Baddeley, L.J.   +30 more
core   +2 more sources

Synthetic aperture radar remote sensing for landfill monitoring [PDF]

, 2007
Despite today’s intensive efforts directed at the recycling and recovery of solid wastes, the controlled disposal of refuse into land remains an important and necessary means of effective waste management.
Ottavianelli, Giuseppe
core   +4 more sources

Meteorological Influence on L-Band Forest Backscatter: Evidence from the BorealScat-2 Radar Tower [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Boreal forest water exchange operates at sub-daily time scales, yet these dynamics are difficult to resolve using conventional satellite radar observations.
S. Rawat, A. R. Monteith, L. M. H. Ulander, H. Laudon, J. Gutierrez Lopez, H. J. Persson   +5 more
doaj   +1 more source

Superdarn radar HF propagation and absorption response to the substorm expansion phase [PDF]

, 2002
International audienceCoherent scatter HF ionospheric radar systems such as SuperDARN offer a powerful experimental technique for the investigation of the magnetospheric substorm.
J. A. Davies, Milan, S. E., Honary, F., T. K. Yeoman (7601525), J. A. Davies (4412452), J. K. Gauld (7674179), F. Honary (7604621), T. K. Yeoman, Davies, J. A., S. E. Milan, J. K. Gauld, F. Honary, Yeoman, T. K., S. E. Milan (7594526), Gauld, J. K.   +14 more
core   +2 more sources

VHF coherent radar signals from the E region ionosphere and the relationship to electron drift velocity and ion acoustic velocity [PDF]

, 2002
The Scandinavian Twin Auroral Radar Experiment (STARE) coherent radar system measures the Doppler shifts caused by ∼1 m plasma waves in the high-latitude E region ionosphere.
Nielsen, E., Del-Pozo, Carlos, Williams, P. J. S.   +2 more
core   +4 more sources

Tower-based C-band radar measurements of an alpine snowpack [PDF]

The Cryosphere
To better understand the interactions between C-band radar waves and snow, a tower-based experiment was set up in the Idaho Rocky Mountains for the period of 2021–2023.
I. Brangers, H.-P. Marshall, G. De Lannoy, D. Dunmire, C. Mätzler, H. Lievens, H. Lievens   +6 more
doaj   +1 more source

Meridional motions of the afternoon radar aurora, auroral electrojets, and absorption patches under variable IMF conditions [PDF]

, 2004
International audienceThe meridional motions of the CUTLASS HF and STARE VHF coherent echoes, IMAGE equivalent electrojet currents, and IRIS absorption patches during the postnoon/early-evening event of 14 February 2000 are presented.
Uspensky, M. V., M. V. Uspensky, Koustov, A. V., Makarevitch, R. A., F. Honary, Honary, F., R. A. Makarevitch, A. V. Koustov   +7 more
core   +2 more sources

On the factors controlling occurrence of F-region coherent echoes [PDF]

, 2002
International audienceSeveral factors are known to control the HF echo occurrence rate, including electron density distribution in the ionosphere (affecting the propagation path of the radar wave), D-region radio wave absorption, and ionospheric ...
T. Ogawa, S. Nozawa, A. V. Koustov, D. Andre (7667897), Milan, S.E., D. W. Danskin, Nozawa, S., T. Ogawa (4008053), S. E. Milan (7594526), N. Nishitani, D. Andre, Milan, S. E., Lester, M., S. Nozawa (7672178), D. W. Danskin (7613489), N. Nishitani (7672181), Danskin, D. W., Ogawa, T., M. Lester, A. V. Koustov (7613492), M. Lester (7589660), Andre, D., S. E. Milan, Koustov, A.V., Koustov, A. V., Nishitani, N., Danskin, D.W.   +26 more
core   +2 more sources

A first comparison of irregularity and ion drift velocity measurements in the E-region [PDF]

, 2006
International audienceE-region irregularity velocity measurements at large flow angles with the STARE Finland coherent VHF radar are considered in context of the ion and electron velocity data provided by the EISCAT tristatic radar system, CUTLASS ...
J. A. Davies, A. Senior, Makarevich, R. A., P. L. Dyson, Milan, S. E., I. W. McCrea, Honary, F., A. V. Koustov, Dyson, P. L., R. A. Makarevich, Senior, A., V. S. C. Howells, Davies, J. A., S. E. Milan, Koustov, A. V., Howells, V. S. C., McCrea, I. W., F. Honary   +17 more
core   +2 more sources

C-Band SAR Imagery for Snow-Cover Monitoring at Treeline, Churchill, Manitoba, Canada

Remote Sensing, 2012
RADARSAT and ERS-2 data collected at multiple incidence angles are used to characterize the seasonal variations in the backscatter of snow-covered landscapes in the northern Hudson Bay Lowlands during the winters of 1997/98 and 1998/99.
Frédérique C. Pivot
doaj   +1 more source