Results 51 to 60 of about 1,031,036 (328)
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
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
Variational Data Assimilation via Sparse Regularization [PDF]
, 2013 This paper studies the role of sparse regularization in a properly chosen basis for variational data assimilation (VDA) problems. Specifically, it focuses on data assimilation of noisy and down-sampled observations while the state variable of interest ...
Ebtehaj, A. M. +3 more
core +2 more sources
Consistent assimilation of multiple data streams in a carbon cycle data assimilation system [PDF]
Geoscientific Model Development, 2016 Abstract. Data assimilation methods provide a rigorous statistical framework for constraining parametric uncertainty in land surface models (LSMs), which in turn helps to improve their predictive capability and to identify areas in which the representation of physical processes is inadequate.
Macbean, Natasha +4 more
openaire +7 more sources
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
Assimilating atmosphere reanalysis in coupled data assimilation [PDF]
Journal of Meteorological Research, 2016 This paper tests the idea of substituting the atmospheric observations with atmospheric reanalysis when setting up a coupled data assimilation system. The paper focuses on the quantification of the effects on the oceanic analysis resulted from this substitution and designs four different assimilation schemes for such a substitution.
Yun Liu +5 more
openaire +2 more sources
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
Multiscale assimilation of Advanced Microwave Scanning Radiometer-EOS snow water equivalent and Moderate Resolution Imaging Spectroradiometer snow cover fraction observations in northern Colorado [PDF]
, 2012 Eight years (2002–2010) of Advanced Microwave Scanning Radiometer–EOS (AMSR-E) snow water equivalent (SWE) retrievals and Moderate Resolution Imaging Spectroradiometer (MODIS) snow cover fraction (SCF) observations are assimilated separately or jointly ...
Arsenault, Kristi R +6 more
core +2 more sources
Earth and Space Science, 2023 Microwave observations of brightness temperature (TB) from multiple polar‐orbiting operational environmental satellite imagers and infrared observations of geostationary operational environmental satellite Himawari‐8 imager are used to investigate ...
Yanyang Hu, Xiaolei Zou
doaj +1 more source
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