Results 41 to 50 of about 21,404,104 (365)
Data assimilation in price formation [PDF]
Inverse Problems, 2020 Abstract We consider the problem of estimating the density of buyers and vendors in a nonlinear parabolic price formation model using measurements of the price and the transaction rate. Our approach is based on a work by Puel (Puel J-P 2002 C. R. Acad.
Martin Burger +2 more
openaire +4 more sources
Journal of Marine Science and Engineering, 2020 A new parameterization for calculating the nonlinear near-bed wave orbital velocity in the shallow water was presented. The equations proposed by Isobe and Horikawa (1982) were modified in order to achieve more accurate predictions of the peak orbital ...
Pham Thanh Nam +3 more
doaj +1 more source
Sampling error of observation impact statistics [PDF]
Tellus: Series A, Dynamic Meteorology and Oceanography, 2014 An observation impact is an estimate of the forecast error reduction by assimilating observations with numerical model forecasts. This study compares the sampling errors of the observation impact statistics (OBIS) of July 2011 and January 2012 using two ...
Sung-Min Kim, Hyun Mee Kim
doaj +1 more source
Continuous Data Assimilation with Stochastically Noisy Data [PDF]
, 2014 We analyze the performance of a data-assimilation algorithm based on a linear feedback control when used with observational data that contains measurement errors.
Bessaih, Hakima +2 more
core +3 more sources
Sequential Data Assimilation of the Stochastic SEIR Epidemic Model for Regional COVID-19 Dynamics
Bulletin of Mathematical Biology, 2020 Newly emerging pandemics like COVID-19 call for predictive models to implement precisely tuned responses to limit their deep impact on society. Standard epidemic models provide a theoretically well-founded dynamical description of disease incidence.
Ralf Engbert +3 more
semanticscholar +1 more source
Remote Sensing, 2022 Convective activities play an important role in tropical weather systems. To investigate the characteristic scales of convection, a method combining a principal component (PC) analysis with Fourier decomposition is applied to brightness temperature ...
Jingchen Pu, Xiaolei Zou
doaj +1 more source
The ERA‐Interim reanalysis: configuration and performance of the data assimilation system
, 2011 ERA‐Interim is the latest global atmospheric reanalysis produced by the European Centre for Medium‐Range Weather Forecasts (ECMWF). The ERA‐Interim project was conducted in part to prepare for a new atmospheric reanalysis to replace ERA‐40, which will ...
D. Dee +35 more
semanticscholar +1 more source
Data Assimilation in Reduced Modeling [PDF]
SIAM/ASA Journal on Uncertainty Quantification, 2017 We consider the problem of optimal recovery of an element $u$ of a Hilbert space $\mathcal{H}$ from $m$ measurements obtained through known linear functionals on $\mathcal{H}$. Problems of this type are well studied \cite{MRW} under an assumption that $u$ belongs to a prescribed model class, e.g. a known compact subset of $\mathcal{H}$.
Binev, Peter +5 more
openaire +5 more sources
Toward Snow Cover Estimation in Mountainous Areas Using Modern Data Assimilation Methods: A Review
Frontiers in Earth Science, 2020 The snow cover is a key component of land surface hydrology, especially in mountain areas where it governs the amount and timing of water availability in downstream areas.
C. Largeron +9 more
semanticscholar +1 more source
Remote Sensing, 2022 The Special Sensor Microwave Imager Sounder (SSMIS) onboard the Defense Meteorological Satellite Program (DMSP) F16, launched on 18 October 2003, was the first conical-scanning radiometer to combine the Special Sensor Microwave/Imagers (SSM/I), Special ...
Huijie Dong, Xiaolei Zou
doaj +1 more source