Results 131 to 140 of about 324 (153)

Nadir altimetry Vis-à-Vis swath altimetry: A study in the context of SWOT mission for the Bay of Bengal

Remote Sensing of Environment, 2021
Abstract Conventional nadir looking altimeters make along track measurements on a line and mapped sea level anomaly (SLA) information is obtained using a combination of several such altimeters (Jason, SARAL, Cryosat etc.). Mapping techniques, in general, introduce a lot of uncertainties in sea level representation and sub-mesoscale variability ...
Aditya Chaudhary, Neeraj Agarwal, Rashmi Sharma, Satya P. Ojha, Raj Kumar   +4 more
openaire   +1 more source

CryoSat-2 swath interferometric altimetry for mapping ice elevation and elevation change [PDF]

Advances in Space Research, 2018
Abstract For more than 25 years, satellite radar altimetry has provided continuous information on the state of the cryosphere and on its contribution to global sea-level rise. The technique typically delivers maps of ice-sheet elevation and elevation change with 3–10 km spatial resolution and seasonal to monthly temporal resolution.
Andrew Shepherd, Noel Gourmelen
exaly   +4 more sources

Swath altimetry of oceans and terrain

Advances in Space Research, 1987
Abstract Satellite radar altimeters have demonstrated a wide range of scientific capabilities over oceans and ice, and have considerable potential over land and inland water /1/. However, the universal adoption of the single-beam, pulse-limited mode of operation limits the spatial and temporal sampling achievable, and makes the generation of surface ...
C.G. Rapley, H.D. Griffiths
openaire   +1 more source

Wide-Swath Altimetry

2017
Eva Peral, Ernesto Rodríguez, Curtis Chen   +2 more
exaly   +2 more sources

Interferometric Swath Radar Altimetry for the study of the Cryosphere

2022
Reference and repeat-observations of land-ice topography is critical to identify causal links between climate and ice trends, generate an accurate record of ice mass balance, and quantify land ice contribution to sea level change. Over the last 30 years, radar altimetry has been instrumental in monitoring ice sheets and their contribution to sea level ...
openaire   +1 more source

Detection capabilities of a multi-satellite wide-swath altimetry conceptual mission

2023
The soon-to-be available swath altimetry observations from the SWOT mission are expected to drastically improve our capacity to observe fine-scale ocean processes (wavelengths shorter than 100 km). With its increased observing capacity and lower signal-to-noise (SNR) ratio in comparison to conventional nadir altimetry, this new technology is expected ...
Oscar Vergara, Gérald Dibarboure, Anaëlle Treboutte, Yannice Faugère, François Boy   +4 more
openaire   +1 more source

Characterization of the ocean waves signature to assess the Sea State Bias in wide-swath interferometric altimetry

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
Ahstract-A comprehensive description of the Sea State Bias (SSB) for wide-swath interferometric (WSI) altimetry is proposed using a two-scale transfer function of the first-of-its-kind instrument, the KaRIn instrument of the SWOT mission. We show that the SSB encompass the contribution of the ElectroMagnetic Bias (EMB) similarly to conventionnal ...
Pierre Dubois, Bertrand Chapron
openaire   +1 more source

A Trailblazing Global Ocean Simulation in the Time of Wide Swath Altimetry

We present the development of a next-generation family of Lat–Lon–Cap (LLC) global ocean simulations, culminating in LLC8640, a 1/96◦ (≈ 1 km) realistic global 'nature run’ that, once complete, will represent the highest-resolution global ocean model produced under realistic conditions.
Kayhan Momeni, Dimitris Menemenlis, Kate Q. Zhang, W. Richard Peltier   +3 more
openaire   +1 more source

Theoretical Modeling of Sea-State Bias in Interferometric Wide-Swath Altimetry

IEEE Transactions on Geoscience and Remote Sensing
Sea-state bias (SSB) is an important source of error in nadir altimetry. Here, we focus on understanding from first principles how SSB will affect measurements over the ocean from the new interferometric swath altimeter KaRIn, on-board the Surface Water Ocean Topography (SWOT) mission.
Osina, Samuel, Nouguier, Frederic, Bohé, Alejandro, Marié, Louis, Chapron, Bertrand, Ardhuin, Fabrice   +5 more
openaire   +1 more source

S3NG-T swath altimetry performance assessments with the CNES simulator Radarspy

The Sentinel-3 Next Generation - Topography (S3NG-T) mission, led by the European Space Agency (ESA), aims to succeed the currently-flying Sentinel-3 operational altimetry mission, using the recent swath altimetry technique pioneered by the SWOT mission.
Yu, Louise, Boy, François, Bohé, Alejandro   +2 more
openaire   +1 more source