Results 41 to 50 of about 626,301 (333)
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
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
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
Data assimilation in a multi-scale model [PDF]
, 2017 Data assimilation for multi-scale models is an important contemporary research topic. Especially the role of unresolved scales and model error in data assimilation needs to be systematically addressed.
Anderson +50 more
core +1 more source
Advances in Meteorology, 2015 In this study, Observing System Simulation Experiments (OSSEs) are conducted to analyze the impact of assimilating surface sensitive infrared radiance observations over land and sea ice. This type of assimilation has not yet been successfully implemented
S. K. Dutta, L. Garand, S. Heilliette
doaj +1 more source
Global 3D Features of Error Variances of GPS Radio Occultation and Radiosonde Observations
Remote Sensing, 2020 Global Positioning System (GPS) radio occultation (RO) and radiosonde (RS) observations are two major types of observations assimilated in numerical weather prediction (NWP) systems.
Xu Xu, Xiaolei Zou
doaj +1 more source
The Onsager--Machlup functional for data assimilation [PDF]
, 2017 When taking the model error into account in data assimilation, one needs to evaluate the prior distribution represented by the Onsager--Machlup functional.
Sugiura, Nozomi
core +3 more sources
Remote Sensing, 2021 Satellite observations of brightness temperature from the Advanced Technology Microwave Sounder (ATMS) and Microwave Humidity Sounder (MHS) humidity sounding channels can provide relatively high horizontal resolution information about cloud and ...
Yanyang Hu, Xiaolei Zou
doaj +1 more source
Deep Data Assimilation: Integrating Deep Learning with Data Assimilation [PDF]
Applied Sciences, 2021 In this paper, we propose Deep Data Assimilation (DDA), an integration of Data Assimilation (DA) with Machine Learning (ML). DA is the Bayesian approximation of the true state of some physical system at a given time by combining time-distributed observations with a dynamic model in an optimal way.
Rossella Arcucci +3 more
openaire +3 more sources
COSMIC-2 RO Profile Ending at PBL Top with Strong Vertical Gradient of Refractivity
Remote Sensing, 2022 The Formosa Satellite-7/Constellation Observing System for Meteorology, Ionosphere, and Climate-2 (Satellite-7/COSMIC-2), which was successfully launched on 25 June 2019, provides dense radio occultation (RO) observations over the tropics and subtropics.
Xu Xu, Xiaolei Zou
doaj +1 more source