Results 71 to 80 of about 21,404,104 (365)
A multiscale method for data assimilation [PDF]
Computational Geosciences, 2018 In data assimilation problems, various types of data are naturally linked to different spatial resolutions (e.g., seismic and electromagnetic data), and these scales are usually not coincident to the subsurface simulation model scale. Alternatives like upscaling/downscaling of the data and/or the simulation model can be used, but with potential loss of
Hadi Hajibeygi +3 more
openaire +6 more sources
Bias Characteristics of COSMIC RO Data within Clouds Based on Different Background Fields
Gaoyuan qixiang, 2023 The Global Constellation Observing System for Meteorology， Ionosphere， and Climate （COSMIC） radio occultation （RO） from 2007 to 2009 were collocated with the CloudSat nadir-pointing cloud profiling radar （CPR） in time and space in this study.We ...
Yan’an YIN, Shengpeng YANG
doaj +1 more source
On sequential multiscale inversion and data assimilation [PDF]
, 2018 Multiscale approaches are very popular for example for solving partial differential equations and in many applied fields dealing with phenomena which take place on different levels of detail.
Nadeem, Aamir +2 more
core +1 more source
, 2020 . Data assimilation integrates information from observational measurements with numerical models. When used with coupled models of Earth system compartments, e.g., the atmosphere and the ocean, consistent joint states can be estimated.
L. Nerger, Qi Tang, L. Mu
semanticscholar +1 more source
Physically-based data assimilation [PDF]
Geoscientific Model Development, 2010 Abstract. Ideally, a validation and assimilation scheme should maintain the physical principles embodied in the model and be able to evaluate and assimilate lower dimensional features (e.g., discontinuities) contained within a bulk simulation, even when these features are not directly observed or represented by model variables. We present such a scheme
Deborah Sulsky +4 more
openaire +5 more sources
Journal of Climate, 2017 The Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2) updates NASA's previous satellite era (1980 - onward) reanalysis system to include additional observations and improvements to the Goddard Earth Observing System ...
C. Randles +12 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.In this work, melt electrowriting is used to fabricate a 3D printed scaffold design that generates engineered cardiac tissues with in‐plane contraction, mimicking natural myocardium. It is shown that these tissues display advanced maturation and functionality.
Olalla Iglesias‐García +23 more
wiley +1 more source
Development and Evaluation of a New Method for AMSU-A Cloud Detection over Land
Remote Sensing, 2021 Satellite data are the main source of information for operational data assimilation systems, and Advanced Microwave Sounding Unit-A (AMSU-A) data are one of the types of satellite data that contribute most to the reduction of numerical forecast errors ...
Zhiwen Wu, Juan Li, Zhengkun Qin
doaj +1 more source
Data assimilation for plume models [PDF]
Nonlinear Processes in Geophysics, 2005 Abstract. We use a four-dimensional variational data assimilation (4D-VAR) algorithm to observe the growth of 2-D plumes from a point heat source. In order to test the predictability of the 4D-VAR technique for 2-D plumes, we perturb the initial conditions and compare the resulting predictions to the predictions given by a direct numerical simulation ...
Alain Vincent +6 more
openaire +4 more sources
Ultrafast Laser Synthesis of Zeolites
Advanced Materials, EarlyView.The study presents a novel ultrafast laser‐driven synthesis technique for zeolites directly in liquid. Laser pulses create a microscopic reactor that controls reaction kinetics at femto‐ and picosecond timescales. Nonlinear light‐matter interactions drive nucleation and growth, allowing the process to be paused at any stage of self‐assembly.
Sezin Galioglu +11 more
wiley +1 more source