Results 51 to 60 of about 19,257 (226)
Assessment of Relative Accuracy of AHN-2 Laser Scanning Data Using Planar Features
Sensors, 2010 AHN-2 is the second part of the Actueel Hoogtebestand Nederland project, which concerns the acquisition of high-resolution altimetry data over the entire Netherlands using airborne laser scanning.
Kourosh Khoshelham +2 more
doaj +1 more source
SWOT Discharge Accuracy Benchmarked in South America
Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.Abstract The Surface Water and Ocean Topography (SWOT) satellite mission offers unprecedented estimates of global river discharge. This study provides a first continental‐scale assessment of SWOT Consensus discharge performance across South America and compares it with a large‐scale hydrodynamic model and in situ observations.
Laila Jover +13 more
wiley +1 more source
Remote Sensing, 2020 The Sentinel-3A and Sentinel-3B satellites were launched, respectively, on 16 February 2016 and 25 April 2018 as part of the European Copernicus program. The Sentinel-3 Surface Topography Mission makes use of the altimeter instruments onboard Sentinel-3A
Nicolas Taburet +9 more
doaj +1 more source
Surface Expression of the Kuroshio Extension Northern Recirculation Gyre
Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.Abstract The Northern Recirculation Gyre (NRG) of the Kuroshio Extension (KE) has traditionally been viewed as subsurface‐intensified and difficult to identify at the sea surface. We combine a 2016–2025 subsurface mooring record, satellite altimetry, Argo trajectory‐based velocities, and historical near‐bottom velocities to reassess the sea‐surface ...
Haihong Guo, Mengze Song, Zhaohui Chen
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.Abstract Poyang Lake, China's largest floodplain lake, plays a crucial role in regional hydrology by seasonally regulating water to mitigate floods and sustain extensive wetland ecosystems. However, complex hydrodynamics and significant spatial hydraulic gradients often invalidate the traditional “flat‐water” assumption, making reliable estimation of ...
Lingyang Liu +7 more
wiley +1 more source
Coincident cloud observations by altimetry and radiometry [PDF]
, 2004 There are many different sensors that can be used for studies of clouds or rain. However, it is only with Envisat that a dual-frequency altimeter has been comanifested with a high-precision infra-red radiometer. This paper is the first to demonstrate the
Quartly, G., Poulsen, C.
core +1 more source
Drone Height from Ground Determination Using GNSS-R Based on Dual-Frequency GPS/BDS Signals
Remote SensingConventional techniques to measure drone heights from the ground, including global navigation satellite systems (GNSSs), barometers, acoustic sensors, and LiDAR, are limited by their measurement ranges, an inability to directly obtain the height from the
Li Zhang +4 more
doaj +1 more source
Evolution of geoids in recent years and its impact on oceanography
Scientia Marina, 2014 Mean surface geostrophic ocean currents may be calculated from the Mean Dynamic Topography (MDT), estimated as the difference between a mean sea surface height (MSS) calculated from radar altimeters and a reference geoid height.
Marco Talone +4 more
doaj +1 more source
Remote Sensing, 2020 The long-term stability of microwave radiometers (MWR) on-board altimetry missions is critical to reduce the uncertainty on the global mean sea level estimate.
Bruno Picard +5 more
doaj +1 more source
The Journal of Wildlife Management, Volume 90, Issue 7, September 2026.We evaluated habitat characteristics of spring migration routes and stopover sites for adult female elk (Cervus canadensis), mule deer (Odocoileus hemionus), and pronghorn (Antilocapra americana) in the San Juan Mountains (2021–2022) and found species‐specific differences in vegetation structure, terrain, and proximity to land cover types relative to ...
Joanna R. Ennis +3 more
wiley +1 more source