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Ning Wang authored and/or contributed to the following articles/publications.
Scale-Dependent Uncertainties in Global QPFs and QPEs from NWP Model and Satellite Fields
Global precipitation forecasts from numerical weather prediction (NWP) models can be verified using the near-global coverage of satellite precipitation retrievals. However, inaccuracies in satellite precipitation analyses complicate the interpretation of forecast errors that result from verification of an NWP model against satellite observations...
Scale-dependent uncertainties in the global QPF and QPE from NWP model and satellite fields
Global precipitation forecasts from numerical weather prediction (NWP) models can be verified using the near-global coverage of satellite precipitation retrievals. However, inaccuracies in satellite precipitation analyses complicate the interpretation of forecast errors that result from verification of an NWP model against satellite observations...
Gridded FX-Net Prototype Project for The Bureau of Land Management, National Interagency Fire Center
Fire weather forecasters at the Bureau of Land Management’s National Interagency Fire Center (NIFC) and the Geographical Area Coordination Centers (GACCs) are tasked to “integrate fire weather, fire danger and resource information for strategic resource allocation and prioritization.” Ochoa, (2003) They have found that by integrating fire weathe...
Stokes parameter analysis of a packet of turbulence-generating gravity waves
Stokes parameter analysis for small-scale gravity waves was carried out from a set of aircraft observational data. The goal is to understand the polarization properties associated with gravity waves when turbulence is generated so that enough physical knowledge can be gained about the interaction between the two. A wavelet cross-spectrum techni...
[1] In combining cross-spectral analysis and wavelet transformation we demonstrate how temporal and spatial characteristics of atmospheric gravity waves can be extracted from observed winds and potential temperature. Applying this method to aircraft observational data, we are able to reconstruct a spectrum of high-frequency monochromatic gravity...
Modeled mesoscale gravity waves: Continuous spectrum and energy cascade
Several of our previous theoretical and observational studies have pointed to the linkage of gravity waves and turbulence in the atmosphere (Koch et al. 2005; Lu et al. 2005a, 2005b). Gravity waves interacting with turbulence are in scales right above the turbulent inertial range, with the wavelength typically on the orders from a few to a few t...
FX-Net: Integrating air chemistry and weather data for research and operations
Transitioning research algorithms and systems to operations is a painstaking, incremental, process, at best, and at worst, a major operational disruption. As the amount of data and applications waiting to be delivered to the operational community continues to grow, the ability to test and evaluate new products and applications falls behind. In o...
A sequential variational analysis approach for mesoscale data assimilation
ANALYSIS OF TURBULENCE GENERATION BY GRAVITY WAVES WITHIN AN UPPER-TROPOSPHERIC FRONT
EXPERIMENT OF A WAVELET-BASED DATA COMPRESSION TECHNIQUE WITH PRECISION CONTROL
FX-NET as a weather visualization tool in undergraduate meteorological education
Delivery of meteorological products to an internet client workstation
A single software framework is introduced to evaluate numerical accuracy of the A-grid (NICAM) versus C-grid (MPAS) shallow-water model solvers on icosahedral grids. The C-grid staggering scheme excels in numerical noise control and total energy conservation, which results in exceptional stability for long time integration. Its weakness lies in ...
Parallelization and Performance of the NIM Weather Model on CPU, GPU, and MIC Processors
The design and performance of the Non-Hydrostatic Icosahedral Model (NIM) global weather prediction model is described. NIM is a dynamical core designed to run on central processing unit (CPU), graphics processing unit (GPU), and Many Integrated Core (MIC) processors. It demonstrates efficient parallel performance and scalability to tens of thou...
Institutions Earth System Research Laboratory - ESRL National Oceanic and Atmospheric Administration - NOAA
A hydrostatic global weather prediction model based on an icosahedral horizontal grid and a hybrid terrain-following/isentropic vertical coordinate is described. The model is an extension to three spatial dimensions of a previously developed, icosahedral, shallow-water model featuring user-selectable horizontal resolution and employing indirect ...
Institutions Earth System Research Laboratory - ESRL National Oceanic and Atmospheric Administration - NOAA
Wavelet Compression Technique for High-Resolution Global Model Data on an Icosahedral Grid
Modern Earth modeling systems often use high-resolution unstructured grids to discretize their horizontal domains. One of the major challenges in working with these high-resolution models is to efficiently transmit and store large volumes of model data for operational forecasts and for modeling research. A newly developed compression techniqu...
Institutions Earth System Research Laboratory - ESRL National Oceanic and Atmospheric Administration - NOAA
A physics suite under development at NOAA's Global Systems Laboratory (GSL) includes the aerosol-aware double-moment Thompson–Eidhammer microphysics (TH-E MP) scheme. This microphysics scheme uses two aerosol variables (concentrations of water-friendly aerosol (WFA) and ice-friendly aerosol (IFA) numbers) to include interactions with some of the...
Institution National Oceanic and Atmospheric Administration - NOAA