Results 61 to 70 of about 7,805 (237)

Analysis of Onboard Verification Flight Test for the Salinity Satellite Scatterometer

Sensors, 2023
The upcoming Salinity Satellite, scheduled for launch in 2024, will feature the world’s first phased array radar scatterometer. To validate its capability in measuring ocean surface backscatter coefficients, this paper conducts an in-depth analysis of ...
Yongqing Liu, Te Wang, Risheng Yun, Peng Liu, Wenming Lin, Di Zhu, Hao Liu, Xiangkun Zhang   +7 more
doaj   +1 more source

Improving Digital Mapping of Soil Organic Carbon and Total Nitrogen Through Integration of Sentinel‐1 Backscatter, InSAR Coherence, and Sentinel‐3 OLCI/SLSTR Observations

Land Degradation &Development, EarlyView.
ABSTRACT The potential of optical satellites for the spatial prediction of soil organic carbon (SOC) and total nitrogen (STN) has long been recognized. Owing to their balanced spatial–temporal resolution, multisource observational capabilities, and unprecedented availability of free data, Sentinel satellites offer unique opportunities for mapping soil ...
Tao Zhou, Xueting Zheng, Hongmin Zhang, Yajun Geng, Huijie Li, Junming Liu, Tingting Liu, Asim Biswas, Bingcheng Si   +8 more
wiley   +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   +1 more source

Synthetic aperture radar backscatter is influenced by bubbles at the ice/water interface of an Antarctic lake

Communications Earth & Environment
Synthetic aperture radar is an invaluable tool for monitoring lake ice. This study utilizes synthetic aperture radar to analyze the 2019-2023 backscatter time series of perennially ice-covered Lake Untersee in East Antarctica.
Adam Gaudreau, Denis Lacelle, Dale T. Andersen   +2 more
doaj   +1 more source

Temporal Survey of P- and L-Band Polarimetric Backscatter in Boreal Forests

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2018
Environmental conditions and seasonal variations affect the backscattered radar signal from a forest. This potentially causes errors in a biomass retrieval scheme using data from the synthetic aperture radar (SAR) data.
Albert R. Monteith, Lars M. H. Ulander
doaj   +1 more source

Polylactide/Graphene Nanoplatelet Composites for Advanced Functional Applications

Polymer Composites, EarlyView.
Polylactide/Graphene nanoplatelet composites for advanced functional applications. ABSTRACT This study investigates the structure–property relationships of polylactide (PLA) nanocomposites containing graphene nanoplatelets (GNP) and trimellitic anhydride‐modified GNPs (TMA‐GNP).
Shivanthi Dharmarathna, Haritha Haridas, Hadi Hosseini, Mehdi Babazadeh, Carlos E. Saavedra, Marianna Kontopoulou   +5 more
wiley   +1 more source

Nightside studies of coherent HF radar spectral width behaviour [PDF]

, 2002
A previous case study found a relationship between high spectral width measured by the CUTLASS Finland HF radar and elevated electron temperatures observed by the EISCAT and ESR incoherent scatter radars in the post-midnight sector of magnetic local time.
J. A. Davies, Davies, J.A., Eglitis, P., P. Eglitis (7605143), P. Eglitis, Woodfield, E.E., Lester, M., Lockwood, M., Lockwood, Mike, M. Lester, J. A. Davies (4412452), T. K. Yeoman (7601525), T. K. Yeoman, M. Lester (7589660), Davies, J. A., M. Lockwood, M. Lockwood (7612331), E. E. Woodfield (7590071), E. E. Woodfield, Yeoman, T. K., Yeoman, T.K., Woodfield, E. E.   +21 more
core   +1 more source

Mapping dynamics of deforestation and forest degradation in tropical forests using radar satellite data

Environmental Research Letters, 2015
Mapping anthropogenic forest disturbances has largely been focused on distinct delineations of events of deforestation using optical satellite images.
Neha Joshi, Edward TA Mitchard, Natalia Woo, Jorge Torres, Julian Moll-Rocek, Andrea Ehammer, Murray Collins, Martin R Jepsen, Rasmus Fensholt   +8 more
doaj   +1 more source

Exploiting Aeolus winds in a regional numerical weather prediction model

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Aeolus measured winds have proven to be beneficial for global models. However, demonstrating positive impact for limited‐area models has been a challenge so far. For the first time, we have demonstrated a statistically significant positive impact of Aeolus winds in a limited‐area model by using the 4DVar data assimilation technique and the most recent ...
Gert‐Jan Marseille, Roohollah Azad, Martin Ridal, Susanna Hagelin   +3 more
wiley   +1 more source

Comparison of D-region Doppler drift winds measured by the SuperDARN Finland HF radar over an annual cycle using the Kiruna VHF meteor radar [PDF]

, 2003
The SuperDARN chain of oblique HF radars has provided an opportunity to generate a unique climatology of horizontal winds near the mesopause at a number of high latitude locations, via the Doppler shifted echoes from sources of ionisation in the D-region.
N. F. Arnold (7589813), T. R. Robinson (7590257), P. A. Cook, Chapman, Peter J., N. Mitchell, P. A. Cook (7692134), Lester, M., Mitchell, N., Mitchell, Nick, P. J. Chapman, Arnold, Neil E., Robinson, T. R., Chapman, P. J., M. Lester, Cook, Peter A., M. Lester (7589660), P. J. Chapman (7590299), Arnold, N. F., Cook, P. A., T. R. Robinson, Lester, Mark, N. Mitchell (7692137), N. F. Arnold   +22 more
core   +1 more source